| /* |
| * Copyright © 2014 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| * IN THE SOFTWARE. |
| * |
| * Authors: |
| * Connor Abbott (cwabbott0@gmail.com) |
| * |
| */ |
| |
| #include "float64_glsl.h" |
| #include "glsl_to_nir.h" |
| #include "ir_visitor.h" |
| #include "ir_hierarchical_visitor.h" |
| #include "ir.h" |
| #include "ir_optimization.h" |
| #include "program.h" |
| #include "compiler/nir/nir_control_flow.h" |
| #include "compiler/nir/nir_builder.h" |
| #include "compiler/nir/nir_builtin_builder.h" |
| #include "compiler/nir/nir_deref.h" |
| #include "main/errors.h" |
| #include "main/mtypes.h" |
| #include "main/shaderobj.h" |
| #include "util/u_math.h" |
| |
| /* |
| * pass to lower GLSL IR to NIR |
| * |
| * This will lower variable dereferences to loads/stores of corresponding |
| * variables in NIR - the variables will be converted to registers in a later |
| * pass. |
| */ |
| |
| namespace { |
| |
| class nir_visitor : public ir_visitor |
| { |
| public: |
| nir_visitor(gl_context *ctx, nir_shader *shader); |
| ~nir_visitor(); |
| |
| virtual void visit(ir_variable *); |
| virtual void visit(ir_function *); |
| virtual void visit(ir_function_signature *); |
| virtual void visit(ir_loop *); |
| virtual void visit(ir_if *); |
| virtual void visit(ir_discard *); |
| virtual void visit(ir_demote *); |
| virtual void visit(ir_loop_jump *); |
| virtual void visit(ir_return *); |
| virtual void visit(ir_call *); |
| virtual void visit(ir_assignment *); |
| virtual void visit(ir_emit_vertex *); |
| virtual void visit(ir_end_primitive *); |
| virtual void visit(ir_expression *); |
| virtual void visit(ir_swizzle *); |
| virtual void visit(ir_texture *); |
| virtual void visit(ir_constant *); |
| virtual void visit(ir_dereference_variable *); |
| virtual void visit(ir_dereference_record *); |
| virtual void visit(ir_dereference_array *); |
| virtual void visit(ir_barrier *); |
| |
| void create_function(ir_function_signature *ir); |
| |
| private: |
| void add_instr(nir_instr *instr, unsigned num_components, unsigned bit_size); |
| nir_ssa_def *evaluate_rvalue(ir_rvalue *ir); |
| |
| nir_alu_instr *emit(nir_op op, unsigned dest_size, nir_ssa_def **srcs); |
| nir_alu_instr *emit(nir_op op, unsigned dest_size, nir_ssa_def *src1); |
| nir_alu_instr *emit(nir_op op, unsigned dest_size, nir_ssa_def *src1, |
| nir_ssa_def *src2); |
| nir_alu_instr *emit(nir_op op, unsigned dest_size, nir_ssa_def *src1, |
| nir_ssa_def *src2, nir_ssa_def *src3); |
| |
| bool supports_std430; |
| |
| nir_shader *shader; |
| nir_function_impl *impl; |
| nir_builder b; |
| nir_ssa_def *result; /* result of the expression tree last visited */ |
| |
| nir_deref_instr *evaluate_deref(ir_instruction *ir); |
| |
| nir_constant *constant_copy(ir_constant *ir, void *mem_ctx); |
| |
| /* most recent deref instruction created */ |
| nir_deref_instr *deref; |
| |
| /* whether the IR we're operating on is per-function or global */ |
| bool is_global; |
| |
| ir_function_signature *sig; |
| |
| /* map of ir_variable -> nir_variable */ |
| struct hash_table *var_table; |
| |
| /* map of ir_function_signature -> nir_function_overload */ |
| struct hash_table *overload_table; |
| }; |
| |
| /* |
| * This visitor runs before the main visitor, calling create_function() for |
| * each function so that the main visitor can resolve forward references in |
| * calls. |
| */ |
| |
| class nir_function_visitor : public ir_hierarchical_visitor |
| { |
| public: |
| nir_function_visitor(nir_visitor *v) : visitor(v) |
| { |
| } |
| virtual ir_visitor_status visit_enter(ir_function *); |
| |
| private: |
| nir_visitor *visitor; |
| }; |
| |
| /* glsl_to_nir can only handle converting certain function paramaters |
| * to NIR. This visitor checks for parameters it can't currently handle. |
| */ |
| class ir_function_param_visitor : public ir_hierarchical_visitor |
| { |
| public: |
| ir_function_param_visitor() |
| : unsupported(false) |
| { |
| } |
| |
| virtual ir_visitor_status visit_enter(ir_function_signature *ir) |
| { |
| |
| if (ir->is_intrinsic()) |
| return visit_continue; |
| |
| foreach_in_list(ir_variable, param, &ir->parameters) { |
| if (!param->type->is_vector() || !param->type->is_scalar()) { |
| unsupported = true; |
| return visit_stop; |
| } |
| |
| if (param->data.mode == ir_var_function_inout) { |
| unsupported = true; |
| return visit_stop; |
| } |
| } |
| |
| if (!glsl_type_is_vector_or_scalar(ir->return_type) && |
| !ir->return_type->is_void()) { |
| unsupported = true; |
| return visit_stop; |
| } |
| |
| return visit_continue; |
| } |
| |
| bool unsupported; |
| }; |
| |
| } /* end of anonymous namespace */ |
| |
| |
| static bool |
| has_unsupported_function_param(exec_list *ir) |
| { |
| ir_function_param_visitor visitor; |
| visit_list_elements(&visitor, ir); |
| return visitor.unsupported; |
| } |
| |
| nir_shader * |
| glsl_to_nir(struct gl_context *ctx, |
| const struct gl_shader_program *shader_prog, |
| gl_shader_stage stage, |
| const nir_shader_compiler_options *options) |
| { |
| struct gl_linked_shader *sh = shader_prog->_LinkedShaders[stage]; |
| |
| const struct gl_shader_compiler_options *gl_options = |
| &ctx->Const.ShaderCompilerOptions[stage]; |
| |
| /* glsl_to_nir can only handle converting certain function paramaters |
| * to NIR. If we find something we can't handle then we get the GLSL IR |
| * opts to remove it before we continue on. |
| * |
| * TODO: add missing glsl ir to nir support and remove this loop. |
| */ |
| while (has_unsupported_function_param(sh->ir)) { |
| do_common_optimization(sh->ir, true, true, gl_options, |
| ctx->Const.NativeIntegers); |
| } |
| |
| nir_shader *shader = nir_shader_create(NULL, stage, options, |
| &sh->Program->info); |
| |
| nir_visitor v1(ctx, shader); |
| nir_function_visitor v2(&v1); |
| v2.run(sh->ir); |
| visit_exec_list(sh->ir, &v1); |
| |
| nir_validate_shader(shader, "after glsl to nir, before function inline"); |
| |
| /* We have to lower away local constant initializers right before we |
| * inline functions. That way they get properly initialized at the top |
| * of the function and not at the top of its caller. |
| */ |
| nir_lower_variable_initializers(shader, nir_var_all); |
| nir_lower_returns(shader); |
| nir_inline_functions(shader); |
| nir_opt_deref(shader); |
| |
| nir_validate_shader(shader, "after function inlining and return lowering"); |
| |
| /* Now that we have inlined everything remove all of the functions except |
| * main(). |
| */ |
| foreach_list_typed_safe(nir_function, function, node, &(shader)->functions){ |
| if (strcmp("main", function->name) != 0) { |
| exec_node_remove(&function->node); |
| } |
| } |
| |
| shader->info.name = ralloc_asprintf(shader, "GLSL%d", shader_prog->Name); |
| if (shader_prog->Label) |
| shader->info.label = ralloc_strdup(shader, shader_prog->Label); |
| |
| /* Check for transform feedback varyings specified via the API */ |
| shader->info.has_transform_feedback_varyings = |
| shader_prog->TransformFeedback.NumVarying > 0; |
| |
| /* Check for transform feedback varyings specified in the Shader */ |
| if (shader_prog->last_vert_prog) |
| shader->info.has_transform_feedback_varyings |= |
| shader_prog->last_vert_prog->sh.LinkedTransformFeedback->NumVarying > 0; |
| |
| if (shader->info.stage == MESA_SHADER_FRAGMENT) { |
| shader->info.fs.pixel_center_integer = sh->Program->info.fs.pixel_center_integer; |
| shader->info.fs.origin_upper_left = sh->Program->info.fs.origin_upper_left; |
| } |
| |
| return shader; |
| } |
| |
| nir_visitor::nir_visitor(gl_context *ctx, nir_shader *shader) |
| { |
| this->supports_std430 = ctx->Const.UseSTD430AsDefaultPacking; |
| this->shader = shader; |
| this->is_global = true; |
| this->var_table = _mesa_pointer_hash_table_create(NULL); |
| this->overload_table = _mesa_pointer_hash_table_create(NULL); |
| this->result = NULL; |
| this->impl = NULL; |
| this->deref = NULL; |
| this->sig = NULL; |
| memset(&this->b, 0, sizeof(this->b)); |
| } |
| |
| nir_visitor::~nir_visitor() |
| { |
| _mesa_hash_table_destroy(this->var_table, NULL); |
| _mesa_hash_table_destroy(this->overload_table, NULL); |
| } |
| |
| nir_deref_instr * |
| nir_visitor::evaluate_deref(ir_instruction *ir) |
| { |
| ir->accept(this); |
| return this->deref; |
| } |
| |
| nir_constant * |
| nir_visitor::constant_copy(ir_constant *ir, void *mem_ctx) |
| { |
| if (ir == NULL) |
| return NULL; |
| |
| nir_constant *ret = rzalloc(mem_ctx, nir_constant); |
| |
| const unsigned rows = ir->type->vector_elements; |
| const unsigned cols = ir->type->matrix_columns; |
| unsigned i; |
| |
| ret->num_elements = 0; |
| switch (ir->type->base_type) { |
| case GLSL_TYPE_UINT: |
| /* Only float base types can be matrices. */ |
| assert(cols == 1); |
| |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].u32 = ir->value.u[r]; |
| |
| break; |
| |
| case GLSL_TYPE_UINT16: |
| /* Only float base types can be matrices. */ |
| assert(cols == 1); |
| |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].u16 = ir->value.u16[r]; |
| break; |
| |
| case GLSL_TYPE_INT: |
| /* Only float base types can be matrices. */ |
| assert(cols == 1); |
| |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].i32 = ir->value.i[r]; |
| |
| break; |
| |
| case GLSL_TYPE_INT16: |
| /* Only float base types can be matrices. */ |
| assert(cols == 1); |
| |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].i16 = ir->value.i16[r]; |
| break; |
| |
| case GLSL_TYPE_FLOAT: |
| case GLSL_TYPE_FLOAT16: |
| case GLSL_TYPE_DOUBLE: |
| if (cols > 1) { |
| ret->elements = ralloc_array(mem_ctx, nir_constant *, cols); |
| ret->num_elements = cols; |
| for (unsigned c = 0; c < cols; c++) { |
| nir_constant *col_const = rzalloc(mem_ctx, nir_constant); |
| col_const->num_elements = 0; |
| switch (ir->type->base_type) { |
| case GLSL_TYPE_FLOAT: |
| for (unsigned r = 0; r < rows; r++) |
| col_const->values[r].f32 = ir->value.f[c * rows + r]; |
| break; |
| |
| case GLSL_TYPE_FLOAT16: |
| for (unsigned r = 0; r < rows; r++) |
| col_const->values[r].u16 = ir->value.f16[c * rows + r]; |
| break; |
| |
| case GLSL_TYPE_DOUBLE: |
| for (unsigned r = 0; r < rows; r++) |
| col_const->values[r].f64 = ir->value.d[c * rows + r]; |
| break; |
| |
| default: |
| unreachable("Cannot get here from the first level switch"); |
| } |
| ret->elements[c] = col_const; |
| } |
| } else { |
| switch (ir->type->base_type) { |
| case GLSL_TYPE_FLOAT: |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].f32 = ir->value.f[r]; |
| break; |
| |
| case GLSL_TYPE_FLOAT16: |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].u16 = ir->value.f16[r]; |
| break; |
| |
| case GLSL_TYPE_DOUBLE: |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].f64 = ir->value.d[r]; |
| break; |
| |
| default: |
| unreachable("Cannot get here from the first level switch"); |
| } |
| } |
| break; |
| |
| case GLSL_TYPE_UINT64: |
| /* Only float base types can be matrices. */ |
| assert(cols == 1); |
| |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].u64 = ir->value.u64[r]; |
| break; |
| |
| case GLSL_TYPE_INT64: |
| /* Only float base types can be matrices. */ |
| assert(cols == 1); |
| |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].i64 = ir->value.i64[r]; |
| break; |
| |
| case GLSL_TYPE_BOOL: |
| /* Only float base types can be matrices. */ |
| assert(cols == 1); |
| |
| for (unsigned r = 0; r < rows; r++) |
| ret->values[r].b = ir->value.b[r]; |
| |
| break; |
| |
| case GLSL_TYPE_STRUCT: |
| case GLSL_TYPE_ARRAY: |
| ret->elements = ralloc_array(mem_ctx, nir_constant *, |
| ir->type->length); |
| ret->num_elements = ir->type->length; |
| |
| for (i = 0; i < ir->type->length; i++) |
| ret->elements[i] = constant_copy(ir->const_elements[i], mem_ctx); |
| break; |
| |
| default: |
| unreachable("not reached"); |
| } |
| |
| return ret; |
| } |
| |
| static const glsl_type * |
| wrap_type_in_array(const glsl_type *elem_type, const glsl_type *array_type) |
| { |
| if (!array_type->is_array()) |
| return elem_type; |
| |
| elem_type = wrap_type_in_array(elem_type, array_type->fields.array); |
| |
| return glsl_type::get_array_instance(elem_type, array_type->length); |
| } |
| |
| static unsigned |
| get_nir_how_declared(unsigned how_declared) |
| { |
| if (how_declared == ir_var_hidden) |
| return nir_var_hidden; |
| |
| return nir_var_declared_normally; |
| } |
| |
| void |
| nir_visitor::visit(ir_variable *ir) |
| { |
| /* TODO: In future we should switch to using the NIR lowering pass but for |
| * now just ignore these variables as GLSL IR should have lowered them. |
| * Anything remaining are just dead vars that weren't cleaned up. |
| */ |
| if (ir->data.mode == ir_var_shader_shared) |
| return; |
| |
| /* FINISHME: inout parameters */ |
| assert(ir->data.mode != ir_var_function_inout); |
| |
| if (ir->data.mode == ir_var_function_out) |
| return; |
| |
| nir_variable *var = rzalloc(shader, nir_variable); |
| var->type = ir->type; |
| var->name = ralloc_strdup(var, ir->name); |
| |
| var->data.always_active_io = ir->data.always_active_io; |
| var->data.read_only = ir->data.read_only; |
| var->data.centroid = ir->data.centroid; |
| var->data.sample = ir->data.sample; |
| var->data.patch = ir->data.patch; |
| var->data.how_declared = get_nir_how_declared(ir->data.how_declared); |
| var->data.invariant = ir->data.invariant; |
| var->data.location = ir->data.location; |
| var->data.stream = ir->data.stream; |
| if (ir->data.stream & (1u << 31)) |
| var->data.stream |= NIR_STREAM_PACKED; |
| |
| var->data.precision = ir->data.precision; |
| var->data.explicit_location = ir->data.explicit_location; |
| var->data.matrix_layout = ir->data.matrix_layout; |
| var->data.from_named_ifc_block = ir->data.from_named_ifc_block; |
| var->data.compact = false; |
| |
| switch(ir->data.mode) { |
| case ir_var_auto: |
| case ir_var_temporary: |
| if (is_global) |
| var->data.mode = nir_var_shader_temp; |
| else |
| var->data.mode = nir_var_function_temp; |
| break; |
| |
| case ir_var_function_in: |
| case ir_var_const_in: |
| var->data.mode = nir_var_function_temp; |
| break; |
| |
| case ir_var_shader_in: |
| if (shader->info.stage == MESA_SHADER_GEOMETRY && |
| ir->data.location == VARYING_SLOT_PRIMITIVE_ID) { |
| /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */ |
| var->data.location = SYSTEM_VALUE_PRIMITIVE_ID; |
| var->data.mode = nir_var_system_value; |
| } else { |
| var->data.mode = nir_var_shader_in; |
| |
| if (shader->info.stage == MESA_SHADER_TESS_EVAL && |
| (ir->data.location == VARYING_SLOT_TESS_LEVEL_INNER || |
| ir->data.location == VARYING_SLOT_TESS_LEVEL_OUTER)) { |
| var->data.compact = ir->type->without_array()->is_scalar(); |
| } |
| |
| if (shader->info.stage > MESA_SHADER_VERTEX && |
| ir->data.location >= VARYING_SLOT_CLIP_DIST0 && |
| ir->data.location <= VARYING_SLOT_CULL_DIST1) { |
| var->data.compact = ir->type->without_array()->is_scalar(); |
| } |
| } |
| break; |
| |
| case ir_var_shader_out: |
| var->data.mode = nir_var_shader_out; |
| if (shader->info.stage == MESA_SHADER_TESS_CTRL && |
| (ir->data.location == VARYING_SLOT_TESS_LEVEL_INNER || |
| ir->data.location == VARYING_SLOT_TESS_LEVEL_OUTER)) { |
| var->data.compact = ir->type->without_array()->is_scalar(); |
| } |
| |
| if (shader->info.stage <= MESA_SHADER_GEOMETRY && |
| ir->data.location >= VARYING_SLOT_CLIP_DIST0 && |
| ir->data.location <= VARYING_SLOT_CULL_DIST1) { |
| var->data.compact = ir->type->without_array()->is_scalar(); |
| } |
| break; |
| |
| case ir_var_uniform: |
| if (ir->get_interface_type()) |
| var->data.mode = nir_var_mem_ubo; |
| else |
| var->data.mode = nir_var_uniform; |
| break; |
| |
| case ir_var_shader_storage: |
| var->data.mode = nir_var_mem_ssbo; |
| break; |
| |
| case ir_var_system_value: |
| var->data.mode = nir_var_system_value; |
| break; |
| |
| default: |
| unreachable("not reached"); |
| } |
| |
| unsigned mem_access = 0; |
| if (ir->data.memory_read_only) |
| mem_access |= ACCESS_NON_WRITEABLE; |
| if (ir->data.memory_write_only) |
| mem_access |= ACCESS_NON_READABLE; |
| if (ir->data.memory_coherent) |
| mem_access |= ACCESS_COHERENT; |
| if (ir->data.memory_volatile) |
| mem_access |= ACCESS_VOLATILE; |
| if (ir->data.memory_restrict) |
| mem_access |= ACCESS_RESTRICT; |
| |
| var->interface_type = ir->get_interface_type(); |
| |
| /* For UBO and SSBO variables, we need explicit types */ |
| if (var->data.mode & (nir_var_mem_ubo | nir_var_mem_ssbo)) { |
| const glsl_type *explicit_ifc_type = |
| ir->get_interface_type()->get_explicit_interface_type(supports_std430); |
| |
| var->interface_type = explicit_ifc_type; |
| |
| if (ir->type->without_array()->is_interface()) { |
| /* If the type contains the interface, wrap the explicit type in the |
| * right number of arrays. |
| */ |
| var->type = wrap_type_in_array(explicit_ifc_type, ir->type); |
| } else { |
| /* Otherwise, this variable is one entry in the interface */ |
| UNUSED bool found = false; |
| for (unsigned i = 0; i < explicit_ifc_type->length; i++) { |
| const glsl_struct_field *field = |
| &explicit_ifc_type->fields.structure[i]; |
| if (strcmp(ir->name, field->name) != 0) |
| continue; |
| |
| var->type = field->type; |
| if (field->memory_read_only) |
| mem_access |= ACCESS_NON_WRITEABLE; |
| if (field->memory_write_only) |
| mem_access |= ACCESS_NON_READABLE; |
| if (field->memory_coherent) |
| mem_access |= ACCESS_COHERENT; |
| if (field->memory_volatile) |
| mem_access |= ACCESS_VOLATILE; |
| if (field->memory_restrict) |
| mem_access |= ACCESS_RESTRICT; |
| |
| found = true; |
| break; |
| } |
| assert(found); |
| } |
| } |
| |
| var->data.interpolation = ir->data.interpolation; |
| var->data.location_frac = ir->data.location_frac; |
| |
| switch (ir->data.depth_layout) { |
| case ir_depth_layout_none: |
| var->data.depth_layout = nir_depth_layout_none; |
| break; |
| case ir_depth_layout_any: |
| var->data.depth_layout = nir_depth_layout_any; |
| break; |
| case ir_depth_layout_greater: |
| var->data.depth_layout = nir_depth_layout_greater; |
| break; |
| case ir_depth_layout_less: |
| var->data.depth_layout = nir_depth_layout_less; |
| break; |
| case ir_depth_layout_unchanged: |
| var->data.depth_layout = nir_depth_layout_unchanged; |
| break; |
| default: |
| unreachable("not reached"); |
| } |
| |
| var->data.index = ir->data.index; |
| var->data.descriptor_set = 0; |
| var->data.binding = ir->data.binding; |
| var->data.explicit_binding = ir->data.explicit_binding; |
| var->data.bindless = ir->data.bindless; |
| var->data.offset = ir->data.offset; |
| var->data.access = (gl_access_qualifier)mem_access; |
| |
| if (var->type->without_array()->is_image()) { |
| var->data.image.format = ir->data.image_format; |
| } else if (var->data.mode == nir_var_shader_out) { |
| var->data.xfb.buffer = ir->data.xfb_buffer; |
| var->data.xfb.stride = ir->data.xfb_stride; |
| } |
| |
| var->data.fb_fetch_output = ir->data.fb_fetch_output; |
| var->data.explicit_xfb_buffer = ir->data.explicit_xfb_buffer; |
| var->data.explicit_xfb_stride = ir->data.explicit_xfb_stride; |
| |
| var->num_state_slots = ir->get_num_state_slots(); |
| if (var->num_state_slots > 0) { |
| var->state_slots = rzalloc_array(var, nir_state_slot, |
| var->num_state_slots); |
| |
| ir_state_slot *state_slots = ir->get_state_slots(); |
| for (unsigned i = 0; i < var->num_state_slots; i++) { |
| for (unsigned j = 0; j < 5; j++) |
| var->state_slots[i].tokens[j] = state_slots[i].tokens[j]; |
| var->state_slots[i].swizzle = state_slots[i].swizzle; |
| } |
| } else { |
| var->state_slots = NULL; |
| } |
| |
| var->constant_initializer = constant_copy(ir->constant_initializer, var); |
| |
| if (var->data.mode == nir_var_function_temp) |
| nir_function_impl_add_variable(impl, var); |
| else |
| nir_shader_add_variable(shader, var); |
| |
| _mesa_hash_table_insert(var_table, ir, var); |
| } |
| |
| ir_visitor_status |
| nir_function_visitor::visit_enter(ir_function *ir) |
| { |
| foreach_in_list(ir_function_signature, sig, &ir->signatures) { |
| visitor->create_function(sig); |
| } |
| return visit_continue_with_parent; |
| } |
| |
| void |
| nir_visitor::create_function(ir_function_signature *ir) |
| { |
| if (ir->is_intrinsic()) |
| return; |
| |
| nir_function *func = nir_function_create(shader, ir->function_name()); |
| if (strcmp(ir->function_name(), "main") == 0) |
| func->is_entrypoint = true; |
| |
| func->num_params = ir->parameters.length() + |
| (ir->return_type != glsl_type::void_type); |
| func->params = ralloc_array(shader, nir_parameter, func->num_params); |
| |
| unsigned np = 0; |
| |
| if (ir->return_type != glsl_type::void_type) { |
| /* The return value is a variable deref (basically an out parameter) */ |
| func->params[np].num_components = 1; |
| func->params[np].bit_size = 32; |
| np++; |
| } |
| |
| foreach_in_list(ir_variable, param, &ir->parameters) { |
| /* FINISHME: pass arrays, structs, etc by reference? */ |
| assert(param->type->is_vector() || param->type->is_scalar()); |
| |
| if (param->data.mode == ir_var_function_in) { |
| func->params[np].num_components = param->type->vector_elements; |
| func->params[np].bit_size = glsl_get_bit_size(param->type); |
| } else { |
| func->params[np].num_components = 1; |
| func->params[np].bit_size = 32; |
| } |
| np++; |
| } |
| assert(np == func->num_params); |
| |
| _mesa_hash_table_insert(this->overload_table, ir, func); |
| } |
| |
| void |
| nir_visitor::visit(ir_function *ir) |
| { |
| foreach_in_list(ir_function_signature, sig, &ir->signatures) |
| sig->accept(this); |
| } |
| |
| void |
| nir_visitor::visit(ir_function_signature *ir) |
| { |
| if (ir->is_intrinsic()) |
| return; |
| |
| this->sig = ir; |
| |
| struct hash_entry *entry = |
| _mesa_hash_table_search(this->overload_table, ir); |
| |
| assert(entry); |
| nir_function *func = (nir_function *) entry->data; |
| |
| if (ir->is_defined) { |
| nir_function_impl *impl = nir_function_impl_create(func); |
| this->impl = impl; |
| |
| this->is_global = false; |
| |
| nir_builder_init(&b, impl); |
| b.cursor = nir_after_cf_list(&impl->body); |
| |
| unsigned i = (ir->return_type != glsl_type::void_type) ? 1 : 0; |
| |
| foreach_in_list(ir_variable, param, &ir->parameters) { |
| nir_variable *var = |
| nir_local_variable_create(impl, param->type, param->name); |
| |
| if (param->data.mode == ir_var_function_in) { |
| nir_store_var(&b, var, nir_load_param(&b, i), ~0); |
| } |
| |
| _mesa_hash_table_insert(var_table, param, var); |
| i++; |
| } |
| |
| visit_exec_list(&ir->body, this); |
| |
| this->is_global = true; |
| } else { |
| func->impl = NULL; |
| } |
| } |
| |
| void |
| nir_visitor::visit(ir_loop *ir) |
| { |
| nir_push_loop(&b); |
| visit_exec_list(&ir->body_instructions, this); |
| nir_pop_loop(&b, NULL); |
| } |
| |
| void |
| nir_visitor::visit(ir_if *ir) |
| { |
| nir_push_if(&b, evaluate_rvalue(ir->condition)); |
| visit_exec_list(&ir->then_instructions, this); |
| nir_push_else(&b, NULL); |
| visit_exec_list(&ir->else_instructions, this); |
| nir_pop_if(&b, NULL); |
| } |
| |
| void |
| nir_visitor::visit(ir_discard *ir) |
| { |
| /* |
| * discards aren't treated as control flow, because before we lower them |
| * they can appear anywhere in the shader and the stuff after them may still |
| * be executed (yay, crazy GLSL rules!). However, after lowering, all the |
| * discards will be immediately followed by a return. |
| */ |
| |
| nir_intrinsic_instr *discard; |
| if (ir->condition) { |
| discard = nir_intrinsic_instr_create(this->shader, |
| nir_intrinsic_discard_if); |
| discard->src[0] = |
| nir_src_for_ssa(evaluate_rvalue(ir->condition)); |
| } else { |
| discard = nir_intrinsic_instr_create(this->shader, nir_intrinsic_discard); |
| } |
| |
| nir_builder_instr_insert(&b, &discard->instr); |
| } |
| |
| void |
| nir_visitor::visit(ir_demote *ir) |
| { |
| nir_intrinsic_instr *demote = |
| nir_intrinsic_instr_create(this->shader, nir_intrinsic_demote); |
| |
| nir_builder_instr_insert(&b, &demote->instr); |
| } |
| |
| void |
| nir_visitor::visit(ir_emit_vertex *ir) |
| { |
| nir_intrinsic_instr *instr = |
| nir_intrinsic_instr_create(this->shader, nir_intrinsic_emit_vertex); |
| nir_intrinsic_set_stream_id(instr, ir->stream_id()); |
| nir_builder_instr_insert(&b, &instr->instr); |
| } |
| |
| void |
| nir_visitor::visit(ir_end_primitive *ir) |
| { |
| nir_intrinsic_instr *instr = |
| nir_intrinsic_instr_create(this->shader, nir_intrinsic_end_primitive); |
| nir_intrinsic_set_stream_id(instr, ir->stream_id()); |
| nir_builder_instr_insert(&b, &instr->instr); |
| } |
| |
| void |
| nir_visitor::visit(ir_loop_jump *ir) |
| { |
| nir_jump_type type; |
| switch (ir->mode) { |
| case ir_loop_jump::jump_break: |
| type = nir_jump_break; |
| break; |
| case ir_loop_jump::jump_continue: |
| type = nir_jump_continue; |
| break; |
| default: |
| unreachable("not reached"); |
| } |
| |
| nir_jump_instr *instr = nir_jump_instr_create(this->shader, type); |
| nir_builder_instr_insert(&b, &instr->instr); |
| } |
| |
| void |
| nir_visitor::visit(ir_return *ir) |
| { |
| if (ir->value != NULL) { |
| nir_deref_instr *ret_deref = |
| nir_build_deref_cast(&b, nir_load_param(&b, 0), |
| nir_var_function_temp, ir->value->type, 0); |
| |
| nir_ssa_def *val = evaluate_rvalue(ir->value); |
| nir_store_deref(&b, ret_deref, val, ~0); |
| } |
| |
| nir_jump_instr *instr = nir_jump_instr_create(this->shader, nir_jump_return); |
| nir_builder_instr_insert(&b, &instr->instr); |
| } |
| |
| static void |
| intrinsic_set_std430_align(nir_intrinsic_instr *intrin, const glsl_type *type) |
| { |
| unsigned bit_size = type->is_boolean() ? 32 : glsl_get_bit_size(type); |
| unsigned pow2_components = util_next_power_of_two(type->vector_elements); |
| nir_intrinsic_set_align(intrin, (bit_size / 8) * pow2_components, 0); |
| } |
| |
| /* Accumulate any qualifiers along the deref chain to get the actual |
| * load/store qualifier. |
| */ |
| |
| static enum gl_access_qualifier |
| deref_get_qualifier(nir_deref_instr *deref) |
| { |
| nir_deref_path path; |
| nir_deref_path_init(&path, deref, NULL); |
| |
| unsigned qualifiers = path.path[0]->var->data.access; |
| |
| const glsl_type *parent_type = path.path[0]->type; |
| for (nir_deref_instr **cur_ptr = &path.path[1]; *cur_ptr; cur_ptr++) { |
| nir_deref_instr *cur = *cur_ptr; |
| |
| if (parent_type->is_interface()) { |
| const struct glsl_struct_field *field = |
| &parent_type->fields.structure[cur->strct.index]; |
| if (field->memory_read_only) |
| qualifiers |= ACCESS_NON_WRITEABLE; |
| if (field->memory_write_only) |
| qualifiers |= ACCESS_NON_READABLE; |
| if (field->memory_coherent) |
| qualifiers |= ACCESS_COHERENT; |
| if (field->memory_volatile) |
| qualifiers |= ACCESS_VOLATILE; |
| if (field->memory_restrict) |
| qualifiers |= ACCESS_RESTRICT; |
| } |
| |
| parent_type = cur->type; |
| } |
| |
| nir_deref_path_finish(&path); |
| |
| return (gl_access_qualifier) qualifiers; |
| } |
| |
| void |
| nir_visitor::visit(ir_call *ir) |
| { |
| if (ir->callee->is_intrinsic()) { |
| nir_intrinsic_op op; |
| |
| switch (ir->callee->intrinsic_id) { |
| case ir_intrinsic_generic_atomic_add: |
| op = ir->return_deref->type->is_integer_32_64() |
| ? nir_intrinsic_deref_atomic_add : nir_intrinsic_deref_atomic_fadd; |
| break; |
| case ir_intrinsic_generic_atomic_and: |
| op = nir_intrinsic_deref_atomic_and; |
| break; |
| case ir_intrinsic_generic_atomic_or: |
| op = nir_intrinsic_deref_atomic_or; |
| break; |
| case ir_intrinsic_generic_atomic_xor: |
| op = nir_intrinsic_deref_atomic_xor; |
| break; |
| case ir_intrinsic_generic_atomic_min: |
| assert(ir->return_deref); |
| if (ir->return_deref->type == glsl_type::int_type) |
| op = nir_intrinsic_deref_atomic_imin; |
| else if (ir->return_deref->type == glsl_type::uint_type) |
| op = nir_intrinsic_deref_atomic_umin; |
| else if (ir->return_deref->type == glsl_type::float_type) |
| op = nir_intrinsic_deref_atomic_fmin; |
| else |
| unreachable("Invalid type"); |
| break; |
| case ir_intrinsic_generic_atomic_max: |
| assert(ir->return_deref); |
| if (ir->return_deref->type == glsl_type::int_type) |
| op = nir_intrinsic_deref_atomic_imax; |
| else if (ir->return_deref->type == glsl_type::uint_type) |
| op = nir_intrinsic_deref_atomic_umax; |
| else if (ir->return_deref->type == glsl_type::float_type) |
| op = nir_intrinsic_deref_atomic_fmax; |
| else |
| unreachable("Invalid type"); |
| break; |
| case ir_intrinsic_generic_atomic_exchange: |
| op = nir_intrinsic_deref_atomic_exchange; |
| break; |
| case ir_intrinsic_generic_atomic_comp_swap: |
| op = ir->return_deref->type->is_integer_32_64() |
| ? nir_intrinsic_deref_atomic_comp_swap |
| : nir_intrinsic_deref_atomic_fcomp_swap; |
| break; |
| case ir_intrinsic_atomic_counter_read: |
| op = nir_intrinsic_atomic_counter_read_deref; |
| break; |
| case ir_intrinsic_atomic_counter_increment: |
| op = nir_intrinsic_atomic_counter_inc_deref; |
| break; |
| case ir_intrinsic_atomic_counter_predecrement: |
| op = nir_intrinsic_atomic_counter_pre_dec_deref; |
| break; |
| case ir_intrinsic_atomic_counter_add: |
| op = nir_intrinsic_atomic_counter_add_deref; |
| break; |
| case ir_intrinsic_atomic_counter_and: |
| op = nir_intrinsic_atomic_counter_and_deref; |
| break; |
| case ir_intrinsic_atomic_counter_or: |
| op = nir_intrinsic_atomic_counter_or_deref; |
| break; |
| case ir_intrinsic_atomic_counter_xor: |
| op = nir_intrinsic_atomic_counter_xor_deref; |
| break; |
| case ir_intrinsic_atomic_counter_min: |
| op = nir_intrinsic_atomic_counter_min_deref; |
| break; |
| case ir_intrinsic_atomic_counter_max: |
| op = nir_intrinsic_atomic_counter_max_deref; |
| break; |
| case ir_intrinsic_atomic_counter_exchange: |
| op = nir_intrinsic_atomic_counter_exchange_deref; |
| break; |
| case ir_intrinsic_atomic_counter_comp_swap: |
| op = nir_intrinsic_atomic_counter_comp_swap_deref; |
| break; |
| case ir_intrinsic_image_load: |
| op = nir_intrinsic_image_deref_load; |
| break; |
| case ir_intrinsic_image_store: |
| op = nir_intrinsic_image_deref_store; |
| break; |
| case ir_intrinsic_image_atomic_add: |
| op = ir->return_deref->type->is_integer_32_64() |
| ? nir_intrinsic_image_deref_atomic_add |
| : nir_intrinsic_image_deref_atomic_fadd; |
| break; |
| case ir_intrinsic_image_atomic_min: |
| if (ir->return_deref->type == glsl_type::int_type) |
| op = nir_intrinsic_image_deref_atomic_imin; |
| else if (ir->return_deref->type == glsl_type::uint_type) |
| op = nir_intrinsic_image_deref_atomic_umin; |
| else |
| unreachable("Invalid type"); |
| break; |
| case ir_intrinsic_image_atomic_max: |
| if (ir->return_deref->type == glsl_type::int_type) |
| op = nir_intrinsic_image_deref_atomic_imax; |
| else if (ir->return_deref->type == glsl_type::uint_type) |
| op = nir_intrinsic_image_deref_atomic_umax; |
| else |
| unreachable("Invalid type"); |
| break; |
| case ir_intrinsic_image_atomic_and: |
| op = nir_intrinsic_image_deref_atomic_and; |
| break; |
| case ir_intrinsic_image_atomic_or: |
| op = nir_intrinsic_image_deref_atomic_or; |
| break; |
| case ir_intrinsic_image_atomic_xor: |
| op = nir_intrinsic_image_deref_atomic_xor; |
| break; |
| case ir_intrinsic_image_atomic_exchange: |
| op = nir_intrinsic_image_deref_atomic_exchange; |
| break; |
| case ir_intrinsic_image_atomic_comp_swap: |
| op = nir_intrinsic_image_deref_atomic_comp_swap; |
| break; |
| case ir_intrinsic_image_atomic_inc_wrap: |
| op = nir_intrinsic_image_deref_atomic_inc_wrap; |
| break; |
| case ir_intrinsic_image_atomic_dec_wrap: |
| op = nir_intrinsic_image_deref_atomic_dec_wrap; |
| break; |
| case ir_intrinsic_memory_barrier: |
| op = nir_intrinsic_memory_barrier; |
| break; |
| case ir_intrinsic_image_size: |
| op = nir_intrinsic_image_deref_size; |
| break; |
| case ir_intrinsic_image_samples: |
| op = nir_intrinsic_image_deref_samples; |
| break; |
| case ir_intrinsic_ssbo_store: |
| case ir_intrinsic_ssbo_load: |
| case ir_intrinsic_ssbo_atomic_add: |
| case ir_intrinsic_ssbo_atomic_and: |
| case ir_intrinsic_ssbo_atomic_or: |
| case ir_intrinsic_ssbo_atomic_xor: |
| case ir_intrinsic_ssbo_atomic_min: |
| case ir_intrinsic_ssbo_atomic_max: |
| case ir_intrinsic_ssbo_atomic_exchange: |
| case ir_intrinsic_ssbo_atomic_comp_swap: |
| /* SSBO store/loads should only have been lowered in GLSL IR for |
| * non-nir drivers, NIR drivers make use of gl_nir_lower_buffers() |
| * instead. |
| */ |
| unreachable("Invalid operation nir doesn't want lowered ssbo " |
| "store/loads"); |
| case ir_intrinsic_shader_clock: |
| op = nir_intrinsic_shader_clock; |
| break; |
| case ir_intrinsic_begin_invocation_interlock: |
| op = nir_intrinsic_begin_invocation_interlock; |
| break; |
| case ir_intrinsic_end_invocation_interlock: |
| op = nir_intrinsic_end_invocation_interlock; |
| break; |
| case ir_intrinsic_group_memory_barrier: |
| op = nir_intrinsic_group_memory_barrier; |
| break; |
| case ir_intrinsic_memory_barrier_atomic_counter: |
| op = nir_intrinsic_memory_barrier_atomic_counter; |
| break; |
| case ir_intrinsic_memory_barrier_buffer: |
| op = nir_intrinsic_memory_barrier_buffer; |
| break; |
| case ir_intrinsic_memory_barrier_image: |
| op = nir_intrinsic_memory_barrier_image; |
| break; |
| case ir_intrinsic_memory_barrier_shared: |
| op = nir_intrinsic_memory_barrier_shared; |
| break; |
| case ir_intrinsic_shared_load: |
| op = nir_intrinsic_load_shared; |
| break; |
| case ir_intrinsic_shared_store: |
| op = nir_intrinsic_store_shared; |
| break; |
| case ir_intrinsic_shared_atomic_add: |
| op = ir->return_deref->type->is_integer_32_64() |
| ? nir_intrinsic_shared_atomic_add |
| : nir_intrinsic_shared_atomic_fadd; |
| break; |
| case ir_intrinsic_shared_atomic_and: |
| op = nir_intrinsic_shared_atomic_and; |
| break; |
| case ir_intrinsic_shared_atomic_or: |
| op = nir_intrinsic_shared_atomic_or; |
| break; |
| case ir_intrinsic_shared_atomic_xor: |
| op = nir_intrinsic_shared_atomic_xor; |
| break; |
| case ir_intrinsic_shared_atomic_min: |
| assert(ir->return_deref); |
| if (ir->return_deref->type == glsl_type::int_type) |
| op = nir_intrinsic_shared_atomic_imin; |
| else if (ir->return_deref->type == glsl_type::uint_type) |
| op = nir_intrinsic_shared_atomic_umin; |
| else if (ir->return_deref->type == glsl_type::float_type) |
| op = nir_intrinsic_shared_atomic_fmin; |
| else |
| unreachable("Invalid type"); |
| break; |
| case ir_intrinsic_shared_atomic_max: |
| assert(ir->return_deref); |
| if (ir->return_deref->type == glsl_type::int_type) |
| op = nir_intrinsic_shared_atomic_imax; |
| else if (ir->return_deref->type == glsl_type::uint_type) |
| op = nir_intrinsic_shared_atomic_umax; |
| else if (ir->return_deref->type == glsl_type::float_type) |
| op = nir_intrinsic_shared_atomic_fmax; |
| else |
| unreachable("Invalid type"); |
| break; |
| case ir_intrinsic_shared_atomic_exchange: |
| op = nir_intrinsic_shared_atomic_exchange; |
| break; |
| case ir_intrinsic_shared_atomic_comp_swap: |
| op = ir->return_deref->type->is_integer_32_64() |
| ? nir_intrinsic_shared_atomic_comp_swap |
| : nir_intrinsic_shared_atomic_fcomp_swap; |
| break; |
| case ir_intrinsic_vote_any: |
| op = nir_intrinsic_vote_any; |
| break; |
| case ir_intrinsic_vote_all: |
| op = nir_intrinsic_vote_all; |
| break; |
| case ir_intrinsic_vote_eq: |
| op = nir_intrinsic_vote_ieq; |
| break; |
| case ir_intrinsic_ballot: |
| op = nir_intrinsic_ballot; |
| break; |
| case ir_intrinsic_read_invocation: |
| op = nir_intrinsic_read_invocation; |
| break; |
| case ir_intrinsic_read_first_invocation: |
| op = nir_intrinsic_read_first_invocation; |
| break; |
| case ir_intrinsic_helper_invocation: |
| op = nir_intrinsic_is_helper_invocation; |
| break; |
| default: |
| unreachable("not reached"); |
| } |
| |
| nir_intrinsic_instr *instr = nir_intrinsic_instr_create(shader, op); |
| nir_ssa_def *ret = &instr->dest.ssa; |
| |
| switch (op) { |
| case nir_intrinsic_deref_atomic_add: |
| case nir_intrinsic_deref_atomic_imin: |
| case nir_intrinsic_deref_atomic_umin: |
| case nir_intrinsic_deref_atomic_imax: |
| case nir_intrinsic_deref_atomic_umax: |
| case nir_intrinsic_deref_atomic_and: |
| case nir_intrinsic_deref_atomic_or: |
| case nir_intrinsic_deref_atomic_xor: |
| case nir_intrinsic_deref_atomic_exchange: |
| case nir_intrinsic_deref_atomic_comp_swap: |
| case nir_intrinsic_deref_atomic_fadd: |
| case nir_intrinsic_deref_atomic_fmin: |
| case nir_intrinsic_deref_atomic_fmax: |
| case nir_intrinsic_deref_atomic_fcomp_swap: { |
| int param_count = ir->actual_parameters.length(); |
| assert(param_count == 2 || param_count == 3); |
| |
| /* Deref */ |
| exec_node *param = ir->actual_parameters.get_head(); |
| ir_rvalue *rvalue = (ir_rvalue *) param; |
| ir_dereference *deref = rvalue->as_dereference(); |
| ir_swizzle *swizzle = NULL; |
| if (!deref) { |
| /* We may have a swizzle to pick off a single vec4 component */ |
| swizzle = rvalue->as_swizzle(); |
| assert(swizzle && swizzle->type->vector_elements == 1); |
| deref = swizzle->val->as_dereference(); |
| assert(deref); |
| } |
| nir_deref_instr *nir_deref = evaluate_deref(deref); |
| if (swizzle) { |
| nir_deref = nir_build_deref_array_imm(&b, nir_deref, |
| swizzle->mask.x); |
| } |
| instr->src[0] = nir_src_for_ssa(&nir_deref->dest.ssa); |
| |
| nir_intrinsic_set_access(instr, deref_get_qualifier(nir_deref)); |
| |
| /* data1 parameter (this is always present) */ |
| param = param->get_next(); |
| ir_instruction *inst = (ir_instruction *) param; |
| instr->src[1] = nir_src_for_ssa(evaluate_rvalue(inst->as_rvalue())); |
| |
| /* data2 parameter (only with atomic_comp_swap) */ |
| if (param_count == 3) { |
| assert(op == nir_intrinsic_deref_atomic_comp_swap || |
| op == nir_intrinsic_deref_atomic_fcomp_swap); |
| param = param->get_next(); |
| inst = (ir_instruction *) param; |
| instr->src[2] = nir_src_for_ssa(evaluate_rvalue(inst->as_rvalue())); |
| } |
| |
| /* Atomic result */ |
| assert(ir->return_deref); |
| nir_ssa_dest_init(&instr->instr, &instr->dest, |
| ir->return_deref->type->vector_elements, 32, NULL); |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_atomic_counter_read_deref: |
| case nir_intrinsic_atomic_counter_inc_deref: |
| case nir_intrinsic_atomic_counter_pre_dec_deref: |
| case nir_intrinsic_atomic_counter_add_deref: |
| case nir_intrinsic_atomic_counter_min_deref: |
| case nir_intrinsic_atomic_counter_max_deref: |
| case nir_intrinsic_atomic_counter_and_deref: |
| case nir_intrinsic_atomic_counter_or_deref: |
| case nir_intrinsic_atomic_counter_xor_deref: |
| case nir_intrinsic_atomic_counter_exchange_deref: |
| case nir_intrinsic_atomic_counter_comp_swap_deref: { |
| /* Set the counter variable dereference. */ |
| exec_node *param = ir->actual_parameters.get_head(); |
| ir_dereference *counter = (ir_dereference *)param; |
| |
| instr->src[0] = nir_src_for_ssa(&evaluate_deref(counter)->dest.ssa); |
| param = param->get_next(); |
| |
| /* Set the intrinsic destination. */ |
| if (ir->return_deref) { |
| nir_ssa_dest_init(&instr->instr, &instr->dest, 1, 32, NULL); |
| } |
| |
| /* Set the intrinsic parameters. */ |
| if (!param->is_tail_sentinel()) { |
| instr->src[1] = |
| nir_src_for_ssa(evaluate_rvalue((ir_dereference *)param)); |
| param = param->get_next(); |
| } |
| |
| if (!param->is_tail_sentinel()) { |
| instr->src[2] = |
| nir_src_for_ssa(evaluate_rvalue((ir_dereference *)param)); |
| param = param->get_next(); |
| } |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_image_deref_load: |
| case nir_intrinsic_image_deref_store: |
| case nir_intrinsic_image_deref_atomic_add: |
| case nir_intrinsic_image_deref_atomic_imin: |
| case nir_intrinsic_image_deref_atomic_umin: |
| case nir_intrinsic_image_deref_atomic_imax: |
| case nir_intrinsic_image_deref_atomic_umax: |
| case nir_intrinsic_image_deref_atomic_and: |
| case nir_intrinsic_image_deref_atomic_or: |
| case nir_intrinsic_image_deref_atomic_xor: |
| case nir_intrinsic_image_deref_atomic_exchange: |
| case nir_intrinsic_image_deref_atomic_comp_swap: |
| case nir_intrinsic_image_deref_atomic_fadd: |
| case nir_intrinsic_image_deref_samples: |
| case nir_intrinsic_image_deref_size: |
| case nir_intrinsic_image_deref_atomic_inc_wrap: |
| case nir_intrinsic_image_deref_atomic_dec_wrap: { |
| nir_ssa_undef_instr *instr_undef = |
| nir_ssa_undef_instr_create(shader, 1, 32); |
| nir_builder_instr_insert(&b, &instr_undef->instr); |
| |
| /* Set the image variable dereference. */ |
| exec_node *param = ir->actual_parameters.get_head(); |
| ir_dereference *image = (ir_dereference *)param; |
| nir_deref_instr *deref = evaluate_deref(image); |
| const glsl_type *type = deref->type; |
| |
| nir_intrinsic_set_access(instr, deref_get_qualifier(deref)); |
| |
| instr->src[0] = nir_src_for_ssa(&deref->dest.ssa); |
| param = param->get_next(); |
| |
| /* Set the intrinsic destination. */ |
| if (ir->return_deref) { |
| unsigned num_components = ir->return_deref->type->vector_elements; |
| nir_ssa_dest_init(&instr->instr, &instr->dest, |
| num_components, 32, NULL); |
| } |
| |
| if (op == nir_intrinsic_image_deref_size) { |
| instr->num_components = instr->dest.ssa.num_components; |
| } else if (op == nir_intrinsic_image_deref_load || |
| op == nir_intrinsic_image_deref_store) { |
| instr->num_components = 4; |
| nir_intrinsic_set_type(instr, |
| nir_get_nir_type_for_glsl_base_type(type->sampled_type)); |
| } |
| |
| if (op == nir_intrinsic_image_deref_size || |
| op == nir_intrinsic_image_deref_samples) { |
| /* image_deref_size takes an LOD parameter which is always 0 |
| * coming from GLSL. |
| */ |
| if (op == nir_intrinsic_image_deref_size) |
| instr->src[1] = nir_src_for_ssa(nir_imm_int(&b, 0)); |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| |
| /* Set the address argument, extending the coordinate vector to four |
| * components. |
| */ |
| nir_ssa_def *src_addr = |
| evaluate_rvalue((ir_dereference *)param); |
| nir_ssa_def *srcs[4]; |
| |
| for (int i = 0; i < 4; i++) { |
| if (i < type->coordinate_components()) |
| srcs[i] = nir_channel(&b, src_addr, i); |
| else |
| srcs[i] = &instr_undef->def; |
| } |
| |
| instr->src[1] = nir_src_for_ssa(nir_vec(&b, srcs, 4)); |
| param = param->get_next(); |
| |
| /* Set the sample argument, which is undefined for single-sample |
| * images. |
| */ |
| if (type->sampler_dimensionality == GLSL_SAMPLER_DIM_MS) { |
| instr->src[2] = |
| nir_src_for_ssa(evaluate_rvalue((ir_dereference *)param)); |
| param = param->get_next(); |
| } else { |
| instr->src[2] = nir_src_for_ssa(&instr_undef->def); |
| } |
| |
| /* Set the intrinsic parameters. */ |
| if (!param->is_tail_sentinel()) { |
| instr->src[3] = |
| nir_src_for_ssa(evaluate_rvalue((ir_dereference *)param)); |
| param = param->get_next(); |
| } else if (op == nir_intrinsic_image_deref_load) { |
| instr->src[3] = nir_src_for_ssa(nir_imm_int(&b, 0)); /* LOD */ |
| } |
| |
| if (!param->is_tail_sentinel()) { |
| instr->src[4] = |
| nir_src_for_ssa(evaluate_rvalue((ir_dereference *)param)); |
| param = param->get_next(); |
| } else if (op == nir_intrinsic_image_deref_store) { |
| instr->src[4] = nir_src_for_ssa(nir_imm_int(&b, 0)); /* LOD */ |
| } |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_memory_barrier: |
| case nir_intrinsic_group_memory_barrier: |
| case nir_intrinsic_memory_barrier_atomic_counter: |
| case nir_intrinsic_memory_barrier_buffer: |
| case nir_intrinsic_memory_barrier_image: |
| case nir_intrinsic_memory_barrier_shared: |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| case nir_intrinsic_shader_clock: |
| nir_ssa_dest_init(&instr->instr, &instr->dest, 2, 32, NULL); |
| nir_intrinsic_set_memory_scope(instr, NIR_SCOPE_SUBGROUP); |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| case nir_intrinsic_begin_invocation_interlock: |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| case nir_intrinsic_end_invocation_interlock: |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| case nir_intrinsic_store_ssbo: { |
| exec_node *param = ir->actual_parameters.get_head(); |
| ir_rvalue *block = ((ir_instruction *)param)->as_rvalue(); |
| |
| param = param->get_next(); |
| ir_rvalue *offset = ((ir_instruction *)param)->as_rvalue(); |
| |
| param = param->get_next(); |
| ir_rvalue *val = ((ir_instruction *)param)->as_rvalue(); |
| |
| param = param->get_next(); |
| ir_constant *write_mask = ((ir_instruction *)param)->as_constant(); |
| assert(write_mask); |
| |
| nir_ssa_def *nir_val = evaluate_rvalue(val); |
| if (val->type->is_boolean()) |
| nir_val = nir_b2i32(&b, nir_val); |
| |
| instr->src[0] = nir_src_for_ssa(nir_val); |
| instr->src[1] = nir_src_for_ssa(evaluate_rvalue(block)); |
| instr->src[2] = nir_src_for_ssa(evaluate_rvalue(offset)); |
| intrinsic_set_std430_align(instr, val->type); |
| nir_intrinsic_set_write_mask(instr, write_mask->value.u[0]); |
| instr->num_components = val->type->vector_elements; |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_load_shared: { |
| exec_node *param = ir->actual_parameters.get_head(); |
| ir_rvalue *offset = ((ir_instruction *)param)->as_rvalue(); |
| |
| nir_intrinsic_set_base(instr, 0); |
| instr->src[0] = nir_src_for_ssa(evaluate_rvalue(offset)); |
| |
| const glsl_type *type = ir->return_deref->var->type; |
| instr->num_components = type->vector_elements; |
| intrinsic_set_std430_align(instr, type); |
| |
| /* Setup destination register */ |
| unsigned bit_size = type->is_boolean() ? 32 : glsl_get_bit_size(type); |
| nir_ssa_dest_init(&instr->instr, &instr->dest, |
| type->vector_elements, bit_size, NULL); |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| |
| /* The value in shared memory is a 32-bit value */ |
| if (type->is_boolean()) |
| ret = nir_b2b1(&b, &instr->dest.ssa); |
| break; |
| } |
| case nir_intrinsic_store_shared: { |
| exec_node *param = ir->actual_parameters.get_head(); |
| ir_rvalue *offset = ((ir_instruction *)param)->as_rvalue(); |
| |
| param = param->get_next(); |
| ir_rvalue *val = ((ir_instruction *)param)->as_rvalue(); |
| |
| param = param->get_next(); |
| ir_constant *write_mask = ((ir_instruction *)param)->as_constant(); |
| assert(write_mask); |
| |
| nir_intrinsic_set_base(instr, 0); |
| instr->src[1] = nir_src_for_ssa(evaluate_rvalue(offset)); |
| |
| nir_intrinsic_set_write_mask(instr, write_mask->value.u[0]); |
| |
| nir_ssa_def *nir_val = evaluate_rvalue(val); |
| /* The value in shared memory is a 32-bit value */ |
| if (val->type->is_boolean()) |
| nir_val = nir_b2b32(&b, nir_val); |
| |
| instr->src[0] = nir_src_for_ssa(nir_val); |
| instr->num_components = val->type->vector_elements; |
| intrinsic_set_std430_align(instr, val->type); |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_shared_atomic_add: |
| case nir_intrinsic_shared_atomic_imin: |
| case nir_intrinsic_shared_atomic_umin: |
| case nir_intrinsic_shared_atomic_imax: |
| case nir_intrinsic_shared_atomic_umax: |
| case nir_intrinsic_shared_atomic_and: |
| case nir_intrinsic_shared_atomic_or: |
| case nir_intrinsic_shared_atomic_xor: |
| case nir_intrinsic_shared_atomic_exchange: |
| case nir_intrinsic_shared_atomic_comp_swap: |
| case nir_intrinsic_shared_atomic_fadd: |
| case nir_intrinsic_shared_atomic_fmin: |
| case nir_intrinsic_shared_atomic_fmax: |
| case nir_intrinsic_shared_atomic_fcomp_swap: { |
| int param_count = ir->actual_parameters.length(); |
| assert(param_count == 2 || param_count == 3); |
| |
| /* Offset */ |
| exec_node *param = ir->actual_parameters.get_head(); |
| ir_instruction *inst = (ir_instruction *) param; |
| instr->src[0] = nir_src_for_ssa(evaluate_rvalue(inst->as_rvalue())); |
| |
| /* data1 parameter (this is always present) */ |
| param = param->get_next(); |
| inst = (ir_instruction *) param; |
| instr->src[1] = nir_src_for_ssa(evaluate_rvalue(inst->as_rvalue())); |
| |
| /* data2 parameter (only with atomic_comp_swap) */ |
| if (param_count == 3) { |
| assert(op == nir_intrinsic_shared_atomic_comp_swap || |
| op == nir_intrinsic_shared_atomic_fcomp_swap); |
| param = param->get_next(); |
| inst = (ir_instruction *) param; |
| instr->src[2] = |
| nir_src_for_ssa(evaluate_rvalue(inst->as_rvalue())); |
| } |
| |
| /* Atomic result */ |
| assert(ir->return_deref); |
| unsigned bit_size = glsl_get_bit_size(ir->return_deref->type); |
| nir_ssa_dest_init(&instr->instr, &instr->dest, |
| ir->return_deref->type->vector_elements, |
| bit_size, NULL); |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_vote_ieq: |
| instr->num_components = 1; |
| /* fall-through */ |
| case nir_intrinsic_vote_any: |
| case nir_intrinsic_vote_all: { |
| nir_ssa_dest_init(&instr->instr, &instr->dest, 1, 1, NULL); |
| |
| ir_rvalue *value = (ir_rvalue *) ir->actual_parameters.get_head(); |
| instr->src[0] = nir_src_for_ssa(evaluate_rvalue(value)); |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| |
| case nir_intrinsic_ballot: { |
| nir_ssa_dest_init(&instr->instr, &instr->dest, |
| ir->return_deref->type->vector_elements, 64, NULL); |
| instr->num_components = ir->return_deref->type->vector_elements; |
| |
| ir_rvalue *value = (ir_rvalue *) ir->actual_parameters.get_head(); |
| instr->src[0] = nir_src_for_ssa(evaluate_rvalue(value)); |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_read_invocation: { |
| nir_ssa_dest_init(&instr->instr, &instr->dest, |
| ir->return_deref->type->vector_elements, 32, NULL); |
| instr->num_components = ir->return_deref->type->vector_elements; |
| |
| ir_rvalue *value = (ir_rvalue *) ir->actual_parameters.get_head(); |
| instr->src[0] = nir_src_for_ssa(evaluate_rvalue(value)); |
| |
| ir_rvalue *invocation = (ir_rvalue *) ir->actual_parameters.get_head()->next; |
| instr->src[1] = nir_src_for_ssa(evaluate_rvalue(invocation)); |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_read_first_invocation: { |
| nir_ssa_dest_init(&instr->instr, &instr->dest, |
| ir->return_deref->type->vector_elements, 32, NULL); |
| instr->num_components = ir->return_deref->type->vector_elements; |
| |
| ir_rvalue *value = (ir_rvalue *) ir->actual_parameters.get_head(); |
| instr->src[0] = nir_src_for_ssa(evaluate_rvalue(value)); |
| |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| case nir_intrinsic_is_helper_invocation: { |
| nir_ssa_dest_init(&instr->instr, &instr->dest, 1, 1, NULL); |
| nir_builder_instr_insert(&b, &instr->instr); |
| break; |
| } |
| default: |
| unreachable("not reached"); |
| } |
| |
| if (ir->return_deref) |
| nir_store_deref(&b, evaluate_deref(ir->return_deref), ret, ~0); |
| |
| return; |
| } |
| |
| struct hash_entry *entry = |
| _mesa_hash_table_search(this->overload_table, ir->callee); |
| assert(entry); |
| nir_function *callee = (nir_function *) entry->data; |
| |
| nir_call_instr *call = nir_call_instr_create(this->shader, callee); |
| |
| unsigned i = 0; |
| nir_deref_instr *ret_deref = NULL; |
| if (ir->return_deref) { |
| nir_variable *ret_tmp = |
| nir_local_variable_create(this->impl, ir->return_deref->type, |
| "return_tmp"); |
| ret_deref = nir_build_deref_var(&b, ret_tmp); |
| call->params[i++] = nir_src_for_ssa(&ret_deref->dest.ssa); |
| } |
| |
| foreach_two_lists(formal_node, &ir->callee->parameters, |
| actual_node, &ir->actual_parameters) { |
| ir_rvalue *param_rvalue = (ir_rvalue *) actual_node; |
| ir_variable *sig_param = (ir_variable *) formal_node; |
| |
| if (sig_param->data.mode == ir_var_function_out) { |
| nir_deref_instr *out_deref = evaluate_deref(param_rvalue); |
| call->params[i] = nir_src_for_ssa(&out_deref->dest.ssa); |
| } else if (sig_param->data.mode == ir_var_function_in) { |
| nir_ssa_def *val = evaluate_rvalue(param_rvalue); |
| nir_src src = nir_src_for_ssa(val); |
| |
| nir_src_copy(&call->params[i], &src, call); |
| } else if (sig_param->data.mode == ir_var_function_inout) { |
| unreachable("unimplemented: inout parameters"); |
| } |
| |
| i++; |
| } |
| |
| nir_builder_instr_insert(&b, &call->instr); |
| |
| if (ir->return_deref) |
| nir_store_deref(&b, evaluate_deref(ir->return_deref), nir_load_deref(&b, ret_deref), ~0); |
| } |
| |
| void |
| nir_visitor::visit(ir_assignment *ir) |
| { |
| unsigned num_components = ir->lhs->type->vector_elements; |
| |
| b.exact = ir->lhs->variable_referenced()->data.invariant || |
| ir->lhs->variable_referenced()->data.precise; |
| |
| if ((ir->rhs->as_dereference() || ir->rhs->as_constant()) && |
| (ir->write_mask == (1 << num_components) - 1 || ir->write_mask == 0)) { |
| nir_deref_instr *lhs = evaluate_deref(ir->lhs); |
| nir_deref_instr *rhs = evaluate_deref(ir->rhs); |
| enum gl_access_qualifier lhs_qualifiers = deref_get_qualifier(lhs); |
| enum gl_access_qualifier rhs_qualifiers = deref_get_qualifier(rhs); |
| if (ir->condition) { |
| nir_push_if(&b, evaluate_rvalue(ir->condition)); |
| nir_copy_deref_with_access(&b, lhs, rhs, lhs_qualifiers, |
| rhs_qualifiers); |
| nir_pop_if(&b, NULL); |
| } else { |
| nir_copy_deref_with_access(&b, lhs, rhs, lhs_qualifiers, |
| rhs_qualifiers); |
| } |
| return; |
| } |
| |
| assert(ir->rhs->type->is_scalar() || ir->rhs->type->is_vector()); |
| |
| ir->lhs->accept(this); |
| nir_deref_instr *lhs_deref = this->deref; |
| nir_ssa_def *src = evaluate_rvalue(ir->rhs); |
| |
| if (ir->write_mask != (1 << num_components) - 1 && ir->write_mask != 0) { |
| /* GLSL IR will give us the input to the write-masked assignment in a |
| * single packed vector. So, for example, if the writemask is xzw, then |
| * we have to swizzle x -> x, y -> z, and z -> w and get the y component |
| * from the load. |
| */ |
| unsigned swiz[4]; |
| unsigned component = 0; |
| for (unsigned i = 0; i < 4; i++) { |
| swiz[i] = ir->write_mask & (1 << i) ? component++ : 0; |
| } |
| src = nir_swizzle(&b, src, swiz, num_components); |
| } |
| |
| enum gl_access_qualifier qualifiers = deref_get_qualifier(lhs_deref); |
| if (ir->condition) { |
| nir_push_if(&b, evaluate_rvalue(ir->condition)); |
| nir_store_deref_with_access(&b, lhs_deref, src, ir->write_mask, |
| qualifiers); |
| nir_pop_if(&b, NULL); |
| } else { |
| nir_store_deref_with_access(&b, lhs_deref, src, ir->write_mask, |
| qualifiers); |
| } |
| } |
| |
| /* |
| * Given an instruction, returns a pointer to its destination or NULL if there |
| * is no destination. |
| * |
| * Note that this only handles instructions we generate at this level. |
| */ |
| static nir_dest * |
| get_instr_dest(nir_instr *instr) |
| { |
| nir_alu_instr *alu_instr; |
| nir_intrinsic_instr *intrinsic_instr; |
| nir_tex_instr *tex_instr; |
| |
| switch (instr->type) { |
| case nir_instr_type_alu: |
| alu_instr = nir_instr_as_alu(instr); |
| return &alu_instr->dest.dest; |
| |
| case nir_instr_type_intrinsic: |
| intrinsic_instr = nir_instr_as_intrinsic(instr); |
| if (nir_intrinsic_infos[intrinsic_instr->intrinsic].has_dest) |
| return &intrinsic_instr->dest; |
| else |
| return NULL; |
| |
| case nir_instr_type_tex: |
| tex_instr = nir_instr_as_tex(instr); |
| return &tex_instr->dest; |
| |
| default: |
| unreachable("not reached"); |
| } |
| |
| return NULL; |
| } |
| |
| void |
| nir_visitor::add_instr(nir_instr *instr, unsigned num_components, |
| unsigned bit_size) |
| { |
| nir_dest *dest = get_instr_dest(instr); |
| |
| if (dest) |
| nir_ssa_dest_init(instr, dest, num_components, bit_size, NULL); |
| |
| nir_builder_instr_insert(&b, instr); |
| |
| if (dest) { |
| assert(dest->is_ssa); |
| this->result = &dest->ssa; |
| } |
| } |
| |
| nir_ssa_def * |
| nir_visitor::evaluate_rvalue(ir_rvalue* ir) |
| { |
| ir->accept(this); |
| if (ir->as_dereference() || ir->as_constant()) { |
| /* |
| * A dereference is being used on the right hand side, which means we |
| * must emit a variable load. |
| */ |
| |
| enum gl_access_qualifier access = deref_get_qualifier(this->deref); |
| this->result = nir_load_deref_with_access(&b, this->deref, access); |
| } |
| |
| return this->result; |
| } |
| |
| static bool |
| type_is_float(glsl_base_type type) |
| { |
| return type == GLSL_TYPE_FLOAT || type == GLSL_TYPE_DOUBLE || |
| type == GLSL_TYPE_FLOAT16; |
| } |
| |
| static bool |
| type_is_signed(glsl_base_type type) |
| { |
| return type == GLSL_TYPE_INT || type == GLSL_TYPE_INT64 || |
| type == GLSL_TYPE_INT16; |
| } |
| |
| void |
| nir_visitor::visit(ir_expression *ir) |
| { |
| /* Some special cases */ |
| switch (ir->operation) { |
| case ir_unop_interpolate_at_centroid: |
| case ir_binop_interpolate_at_offset: |
| case ir_binop_interpolate_at_sample: { |
| ir_dereference *deref = ir->operands[0]->as_dereference(); |
| ir_swizzle *swizzle = NULL; |
| if (!deref) { |
| /* the api does not allow a swizzle here, but the varying packing code |
| * may have pushed one into here. |
| */ |
| swizzle = ir->operands[0]->as_swizzle(); |
| assert(swizzle); |
| deref = swizzle->val->as_dereference(); |
| assert(deref); |
| } |
| |
| deref->accept(this); |
| |
| nir_intrinsic_op op; |
| if (this->deref->mode == nir_var_shader_in) { |
| switch (ir->operation) { |
| case ir_unop_interpolate_at_centroid: |
| op = nir_intrinsic_interp_deref_at_centroid; |
| break; |
| case ir_binop_interpolate_at_offset: |
| op = nir_intrinsic_interp_deref_at_offset; |
| break; |
| case ir_binop_interpolate_at_sample: |
| op = nir_intrinsic_interp_deref_at_sample; |
| break; |
| default: |
| unreachable("Invalid interpolation intrinsic"); |
| } |
| } else { |
| /* This case can happen if the vertex shader does not write the |
| * given varying. In this case, the linker will lower it to a |
| * global variable. Since interpolating a variable makes no |
| * sense, we'll just turn it into a load which will probably |
| * eventually end up as an SSA definition. |
| */ |
| assert(this->deref->mode == nir_var_shader_temp); |
| op = nir_intrinsic_load_deref; |
| } |
| |
| nir_intrinsic_instr *intrin = nir_intrinsic_instr_create(shader, op); |
| intrin->num_components = deref->type->vector_elements; |
| intrin->src[0] = nir_src_for_ssa(&this->deref->dest.ssa); |
| |
| if (intrin->intrinsic == nir_intrinsic_interp_deref_at_offset || |
| intrin->intrinsic == nir_intrinsic_interp_deref_at_sample) |
| intrin->src[1] = nir_src_for_ssa(evaluate_rvalue(ir->operands[1])); |
| |
| unsigned bit_size = glsl_get_bit_size(deref->type); |
| add_instr(&intrin->instr, deref->type->vector_elements, bit_size); |
| |
| if (swizzle) { |
| unsigned swiz[4] = { |
| swizzle->mask.x, swizzle->mask.y, swizzle->mask.z, swizzle->mask.w |
| }; |
| |
| result = nir_swizzle(&b, result, swiz, |
| swizzle->type->vector_elements); |
| } |
| |
| return; |
| } |
| |
| case ir_unop_ssbo_unsized_array_length: { |
| nir_intrinsic_instr *intrin = |
| nir_intrinsic_instr_create(b.shader, |
| nir_intrinsic_deref_buffer_array_length); |
| |
| ir_dereference *deref = ir->operands[0]->as_dereference(); |
| intrin->src[0] = nir_src_for_ssa(&evaluate_deref(deref)->dest.ssa); |
| |
| add_instr(&intrin->instr, 1, 32); |
| return; |
| } |
| |
| case ir_binop_ubo_load: |
| /* UBO loads should only have been lowered in GLSL IR for non-nir drivers, |
| * NIR drivers make use of gl_nir_lower_buffers() instead. |
| */ |
| unreachable("Invalid operation nir doesn't want lowered ubo loads"); |
| default: |
| break; |
| } |
| |
| nir_ssa_def *srcs[4]; |
| for (unsigned i = 0; i < ir->num_operands; i++) |
| srcs[i] = evaluate_rvalue(ir->operands[i]); |
| |
| glsl_base_type types[4]; |
| for (unsigned i = 0; i < ir->num_operands; i++) |
| types[i] = ir->operands[i]->type->base_type; |
| |
| glsl_base_type out_type = ir->type->base_type; |
| |
| switch (ir->operation) { |
| case ir_unop_bit_not: result = nir_inot(&b, srcs[0]); break; |
| case ir_unop_logic_not: |
| result = nir_inot(&b, srcs[0]); |
| break; |
| case ir_unop_neg: |
| result = type_is_float(types[0]) ? nir_fneg(&b, srcs[0]) |
| : nir_ineg(&b, srcs[0]); |
| break; |
| case ir_unop_abs: |
| result = type_is_float(types[0]) ? nir_fabs(&b, srcs[0]) |
| : nir_iabs(&b, srcs[0]); |
| break; |
| case ir_unop_clz: |
| result = nir_uclz(&b, srcs[0]); |
| break; |
| case ir_unop_saturate: |
| assert(type_is_float(types[0])); |
| result = nir_fsat(&b, srcs[0]); |
| break; |
| case ir_unop_sign: |
| result = type_is_float(types[0]) ? nir_fsign(&b, srcs[0]) |
| : nir_isign(&b, srcs[0]); |
| break; |
| case ir_unop_rcp: result = nir_frcp(&b, srcs[0]); break; |
| case ir_unop_rsq: result = nir_frsq(&b, srcs[0]); break; |
| case ir_unop_sqrt: result = nir_fsqrt(&b, srcs[0]); break; |
| case ir_unop_exp: unreachable("ir_unop_exp should have been lowered"); |
| case ir_unop_log: unreachable("ir_unop_log should have been lowered"); |
| case ir_unop_exp2: result = nir_fexp2(&b, srcs[0]); break; |
| case ir_unop_log2: result = nir_flog2(&b, srcs[0]); break; |
| case ir_unop_i2f: |
| case ir_unop_u2f: |
| case ir_unop_b2f: |
| case ir_unop_f2i: |
| case ir_unop_f2u: |
| case ir_unop_f2b: |
| case ir_unop_i2b: |
| case ir_unop_b2i: |
| case ir_unop_b2i64: |
| case ir_unop_d2f: |
| case ir_unop_f2d: |
| case ir_unop_f162f: |
| case ir_unop_f2f16: |
| case ir_unop_f162b: |
| case ir_unop_b2f16: |
| case ir_unop_i2i: |
| case ir_unop_u2u: |
| case ir_unop_d2i: |
| case ir_unop_d2u: |
| case ir_unop_d2b: |
| case ir_unop_i2d: |
| case ir_unop_u2d: |
| case ir_unop_i642i: |
| case ir_unop_i642u: |
| case ir_unop_i642f: |
| case ir_unop_i642b: |
| case ir_unop_i642d: |
| case ir_unop_u642i: |
| case ir_unop_u642u: |
| case ir_unop_u642f: |
| case ir_unop_u642d: |
| case ir_unop_i2i64: |
| case ir_unop_u2i64: |
| case ir_unop_f2i64: |
| case ir_unop_d2i64: |
| case ir_unop_i2u64: |
| case ir_unop_u2u64: |
| case ir_unop_f2u64: |
| case ir_unop_d2u64: |
| case ir_unop_i2u: |
| case ir_unop_u2i: |
| case ir_unop_i642u64: |
| case ir_unop_u642i64: { |
| nir_alu_type src_type = nir_get_nir_type_for_glsl_base_type(types[0]); |
| nir_alu_type dst_type = nir_get_nir_type_for_glsl_base_type(out_type); |
| result = nir_build_alu(&b, nir_type_conversion_op(src_type, dst_type, |
| nir_rounding_mode_undef), |
| srcs[0], NULL, NULL, NULL); |
| /* b2i and b2f don't have fixed bit-size versions so the builder will |
| * just assume 32 and we have to fix it up here. |
| */ |
| result->bit_size = nir_alu_type_get_type_size(dst_type); |
| break; |
| } |
| |
| case ir_unop_f2fmp: { |
| result = nir_build_alu(&b, nir_op_f2fmp, srcs[0], NULL, NULL, NULL); |
| break; |
| } |
| |
| case ir_unop_i2imp: { |
| result = nir_build_alu(&b, nir_op_i2imp, srcs[0], NULL, NULL, NULL); |
| break; |
| } |
| |
| case ir_unop_u2ump: { |
| result = nir_build_alu(&b, nir_op_i2imp, srcs[0], NULL, NULL, NULL); |
| break; |
| } |
| |
| case ir_unop_bitcast_i2f: |
| case ir_unop_bitcast_f2i: |
| case ir_unop_bitcast_u2f: |
| case ir_unop_bitcast_f2u: |
| case ir_unop_bitcast_i642d: |
| case ir_unop_bitcast_d2i64: |
| case ir_unop_bitcast_u642d: |
| case ir_unop_bitcast_d2u64: |
| case ir_unop_subroutine_to_int: |
| /* no-op */ |
| result = nir_mov(&b, srcs[0]); |
| break; |
| case ir_unop_trunc: result = nir_ftrunc(&b, srcs[0]); break; |
| case ir_unop_ceil: result = nir_fceil(&b, srcs[0]); break; |
| case ir_unop_floor: result = nir_ffloor(&b, srcs[0]); break; |
| case ir_unop_fract: result = nir_ffract(&b, srcs[0]); break; |
| case ir_unop_frexp_exp: result = nir_frexp_exp(&b, srcs[0]); break; |
| case ir_unop_frexp_sig: result = nir_frexp_sig(&b, srcs[0]); break; |
| case ir_unop_round_even: result = nir_fround_even(&b, srcs[0]); break; |
| case ir_unop_sin: result = nir_fsin(&b, srcs[0]); break; |
| case ir_unop_cos: result = nir_fcos(&b, srcs[0]); break; |
| case ir_unop_dFdx: result = nir_fddx(&b, srcs[0]); break; |
| case ir_unop_dFdy: result = nir_fddy(&b, srcs[0]); break; |
| case ir_unop_dFdx_fine: result = nir_fddx_fine(&b, srcs[0]); break; |
| case ir_unop_dFdy_fine: result = nir_fddy_fine(&b, srcs[0]); break; |
| case ir_unop_dFdx_coarse: result = nir_fddx_coarse(&b, srcs[0]); break; |
| case ir_unop_dFdy_coarse: result = nir_fddy_coarse(&b, srcs[0]); break; |
| case ir_unop_pack_snorm_2x16: |
| result = nir_pack_snorm_2x16(&b, srcs[0]); |
| break; |
| case ir_unop_pack_snorm_4x8: |
| result = nir_pack_snorm_4x8(&b, srcs[0]); |
| break; |
| case ir_unop_pack_unorm_2x16: |
| result = nir_pack_unorm_2x16(&b, srcs[0]); |
| break; |
| case ir_unop_pack_unorm_4x8: |
| result = nir_pack_unorm_4x8(&b, srcs[0]); |
| break; |
| case ir_unop_pack_half_2x16: |
| result = nir_pack_half_2x16(&b, srcs[0]); |
| break; |
| case ir_unop_unpack_snorm_2x16: |
| result = nir_unpack_snorm_2x16(&b, srcs[0]); |
| break; |
| case ir_unop_unpack_snorm_4x8: |
| result = nir_unpack_snorm_4x8(&b, srcs[0]); |
| break; |
| case ir_unop_unpack_unorm_2x16: |
| result = nir_unpack_unorm_2x16(&b, srcs[0]); |
| break; |
| case ir_unop_unpack_unorm_4x8: |
| result = nir_unpack_unorm_4x8(&b, srcs[0]); |
| break; |
| case ir_unop_unpack_half_2x16: |
| result = nir_unpack_half_2x16(&b, srcs[0]); |
| break; |
| case ir_unop_pack_sampler_2x32: |
| case ir_unop_pack_image_2x32: |
| case ir_unop_pack_double_2x32: |
| case ir_unop_pack_int_2x32: |
| case ir_unop_pack_uint_2x32: |
| result = nir_pack_64_2x32(&b, srcs[0]); |
| break; |
| case ir_unop_unpack_sampler_2x32: |
| case ir_unop_unpack_image_2x32: |
| case ir_unop_unpack_double_2x32: |
| case ir_unop_unpack_int_2x32: |
| case ir_unop_unpack_uint_2x32: |
| result = nir_unpack_64_2x32(&b, srcs[0]); |
| break; |
| case ir_unop_bitfield_reverse: |
| result = nir_bitfield_reverse(&b, srcs[0]); |
| break; |
| case ir_unop_bit_count: |
| result = nir_bit_count(&b, srcs[0]); |
| break; |
| case ir_unop_find_msb: |
| switch (types[0]) { |
| case GLSL_TYPE_UINT: |
| result = nir_ufind_msb(&b, srcs[0]); |
| break; |
| case GLSL_TYPE_INT: |
| result = nir_ifind_msb(&b, srcs[0]); |
| break; |
| default: |
| unreachable("Invalid type for findMSB()"); |
| } |
| break; |
| case ir_unop_find_lsb: |
| result = nir_find_lsb(&b, srcs[0]); |
| break; |
| |
| case ir_unop_get_buffer_size: { |
| nir_intrinsic_instr *load = nir_intrinsic_instr_create( |
| this->shader, |
| nir_intrinsic_get_buffer_size); |
| load->num_components = ir->type->vector_elements; |
| load->src[0] = nir_src_for_ssa(evaluate_rvalue(ir->operands[0])); |
| unsigned bit_size = glsl_get_bit_size(ir->type); |
| add_instr(&load->instr, ir->type->vector_elements, bit_size); |
| return; |
| } |
| |
| case ir_unop_atan: |
| result = nir_atan(&b, srcs[0]); |
| break; |
| |
| case ir_binop_add: |
| result = type_is_float(out_type) ? nir_fadd(&b, srcs[0], srcs[1]) |
| : nir_iadd(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_add_sat: |
| result = type_is_signed(out_type) ? nir_iadd_sat(&b, srcs[0], srcs[1]) |
| : nir_uadd_sat(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_sub: |
| result = type_is_float(out_type) ? nir_fsub(&b, srcs[0], srcs[1]) |
| : nir_isub(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_sub_sat: |
| result = type_is_signed(out_type) ? nir_isub_sat(&b, srcs[0], srcs[1]) |
| : nir_usub_sat(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_abs_sub: |
| /* out_type is always unsigned for ir_binop_abs_sub, so we have to key |
| * on the type of the sources. |
| */ |
| result = type_is_signed(types[0]) ? nir_uabs_isub(&b, srcs[0], srcs[1]) |
| : nir_uabs_usub(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_avg: |
| result = type_is_signed(out_type) ? nir_ihadd(&b, srcs[0], srcs[1]) |
| : nir_uhadd(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_avg_round: |
| result = type_is_signed(out_type) ? nir_irhadd(&b, srcs[0], srcs[1]) |
| : nir_urhadd(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_mul_32x16: |
| result = type_is_signed(out_type) ? nir_imul_32x16(&b, srcs[0], srcs[1]) |
| : nir_umul_32x16(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_mul: |
| if (type_is_float(out_type)) |
| result = nir_fmul(&b, srcs[0], srcs[1]); |
| else if (out_type == GLSL_TYPE_INT64 && |
| (ir->operands[0]->type->base_type == GLSL_TYPE_INT || |
| ir->operands[1]->type->base_type == GLSL_TYPE_INT)) |
| result = nir_imul_2x32_64(&b, srcs[0], srcs[1]); |
| else if (out_type == GLSL_TYPE_UINT64 && |
| (ir->operands[0]->type->base_type == GLSL_TYPE_UINT || |
| ir->operands[1]->type->base_type == GLSL_TYPE_UINT)) |
| result = nir_umul_2x32_64(&b, srcs[0], srcs[1]); |
| else |
| result = nir_imul(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_div: |
| if (type_is_float(out_type)) |
| result = nir_fdiv(&b, srcs[0], srcs[1]); |
| else if (type_is_signed(out_type)) |
| result = nir_idiv(&b, srcs[0], srcs[1]); |
| else |
| result = nir_udiv(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_mod: |
| result = type_is_float(out_type) ? nir_fmod(&b, srcs[0], srcs[1]) |
| : nir_umod(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_min: |
| if (type_is_float(out_type)) |
| result = nir_fmin(&b, srcs[0], srcs[1]); |
| else if (type_is_signed(out_type)) |
| result = nir_imin(&b, srcs[0], srcs[1]); |
| else |
| result = nir_umin(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_max: |
| if (type_is_float(out_type)) |
| result = nir_fmax(&b, srcs[0], srcs[1]); |
| else if (type_is_signed(out_type)) |
| result = nir_imax(&b, srcs[0], srcs[1]); |
| else |
| result = nir_umax(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_pow: result = nir_fpow(&b, srcs[0], srcs[1]); break; |
| case ir_binop_bit_and: result = nir_iand(&b, srcs[0], srcs[1]); break; |
| case ir_binop_bit_or: result = nir_ior(&b, srcs[0], srcs[1]); break; |
| case ir_binop_bit_xor: result = nir_ixor(&b, srcs[0], srcs[1]); break; |
| case ir_binop_logic_and: |
| result = nir_iand(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_logic_or: |
| result = nir_ior(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_logic_xor: |
| result = nir_ixor(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_lshift: result = nir_ishl(&b, srcs[0], nir_u2u32(&b, srcs[1])); break; |
| case ir_binop_rshift: |
| result = (type_is_signed(out_type)) ? nir_ishr(&b, srcs[0], nir_u2u32(&b, srcs[1])) |
| : nir_ushr(&b, srcs[0], nir_u2u32(&b, srcs[1])); |
| break; |
| case ir_binop_imul_high: |
| result = (out_type == GLSL_TYPE_INT) ? nir_imul_high(&b, srcs[0], srcs[1]) |
| : nir_umul_high(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_carry: result = nir_uadd_carry(&b, srcs[0], srcs[1]); break; |
| case ir_binop_borrow: result = nir_usub_borrow(&b, srcs[0], srcs[1]); break; |
| case ir_binop_less: |
| if (type_is_float(types[0])) |
| result = nir_flt(&b, srcs[0], srcs[1]); |
| else if (type_is_signed(types[0])) |
| result = nir_ilt(&b, srcs[0], srcs[1]); |
| else |
| result = nir_ult(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_gequal: |
| if (type_is_float(types[0])) |
| result = nir_fge(&b, srcs[0], srcs[1]); |
| else if (type_is_signed(types[0])) |
| result = nir_ige(&b, srcs[0], srcs[1]); |
| else |
| result = nir_uge(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_equal: |
| if (type_is_float(types[0])) |
| result = nir_feq(&b, srcs[0], srcs[1]); |
| else |
| result = nir_ieq(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_nequal: |
| if (type_is_float(types[0])) |
| result = nir_fneu(&b, srcs[0], srcs[1]); |
| else |
| result = nir_ine(&b, srcs[0], srcs[1]); |
| break; |
| case ir_binop_all_equal: |
| if (type_is_float(types[0])) { |
| switch (ir->operands[0]->type->vector_elements) { |
| case 1: result = nir_feq(&b, srcs[0], srcs[1]); break; |
| case 2: result = nir_ball_fequal2(&b, srcs[0], srcs[1]); break; |
| case 3: result = nir_ball_fequal3(&b, srcs[0], srcs[1]); break; |
| case 4: result = nir_ball_fequal4(&b, srcs[0], srcs[1]); break; |
| default: |
| unreachable("not reached"); |
| } |
| } else { |
| switch (ir->operands[0]->type->vector_elements) { |
| case 1: result = nir_ieq(&b, srcs[0], srcs[1]); break; |
| case 2: result = nir_ball_iequal2(&b, srcs[0], srcs[1]); break; |
| case 3: result = nir_ball_iequal3(&b, srcs[0], srcs[1]); break; |
| case 4: result = nir_ball_iequal4(&b, srcs[0], srcs[1]); break; |
| default: |
| unreachable("not reached"); |
| } |
| } |
| break; |
| case ir_binop_any_nequal: |
| if (type_is_float(types[0])) { |
| switch (ir->operands[0]->type->vector_elements) { |
| case 1: result = nir_fneu(&b, srcs[0], srcs[1]); break; |
| case 2: result = nir_bany_fnequal2(&b, srcs[0], srcs[1]); break; |
| case 3: result = nir_bany_fnequal3(&b, srcs[0], srcs[1]); break; |
| case 4: result = nir_bany_fnequal4(&b, srcs[0], srcs[1]); break; |
| default: |
| unreachable("not reached"); |
| } |
| } else { |
| switch (ir->operands[0]->type->vector_elements) { |
| case 1: result = nir_ine(&b, srcs[0], srcs[1]); break; |
| case 2: result = nir_bany_inequal2(&b, srcs[0], srcs[1]); break; |
| case 3: result = nir_bany_inequal3(&b, srcs[0], srcs[1]); break; |
| case 4: result = nir_bany_inequal4(&b, srcs[0], srcs[1]); break; |
| default: |
| unreachable("not reached"); |
| } |
| } |
| break; |
| case ir_binop_dot: |
| switch (ir->operands[0]->type->vector_elements) { |
| case 2: result = nir_fdot2(&b, srcs[0], srcs[1]); break; |
| case 3: result = nir_fdot3(&b, srcs[0], srcs[1]); break; |
| case 4: result = nir_fdot4(&b, srcs[0], srcs[1]); break; |
| default: |
| unreachable("not reached"); |
| } |
| break; |
| case ir_binop_vector_extract: { |
| result = nir_channel(&b, srcs[0], 0); |
| for (unsigned i = 1; i < ir->operands[0]->type->vector_elements; i++) { |
| nir_ssa_def *swizzled = nir_channel(&b, srcs[0], i); |
| result = nir_bcsel(&b, nir_ieq(&b, srcs[1], nir_imm_int(&b, i)), |
| swizzled, result); |
| } |
| break; |
| } |
| |
| case ir_binop_atan2: |
| result = nir_atan2(&b, srcs[0], srcs[1]); |
| break; |
| |
| case ir_binop_ldexp: result = nir_ldexp(&b, srcs[0], srcs[1]); break; |
| case ir_triop_fma: |
| result = nir_ffma(&b, srcs[0], srcs[1], srcs[2]); |
| break; |
| case ir_triop_lrp: |
| result = nir_flrp(&b, srcs[0], srcs[1], srcs[2]); |
| break; |
| case ir_triop_csel: |
| result = nir_bcsel(&b, srcs[0], srcs[1], srcs[2]); |
| break; |
| case ir_triop_bitfield_extract: |
| result = ir->type->is_int_16_32() ? |
| nir_ibitfield_extract(&b, nir_i2i32(&b, srcs[0]), nir_i2i32(&b, srcs[1]), nir_i2i32(&b, srcs[2])) : |
| nir_ubitfield_extract(&b, nir_u2u32(&b, srcs[0]), nir_i2i32(&b, srcs[1]), nir_i2i32(&b, srcs[2])); |
| break; |
| case ir_quadop_bitfield_insert: |
| result = nir_bitfield_insert(&b, |
| nir_u2u32(&b, srcs[0]), nir_u2u32(&b, srcs[1]), |
| nir_i2i32(&b, srcs[2]), nir_i2i32(&b, srcs[3])); |
| break; |
| case ir_quadop_vector: |
| result = nir_vec(&b, srcs, ir->type->vector_elements); |
| break; |
| |
| default: |
| unreachable("not reached"); |
| } |
| } |
| |
| void |
| nir_visitor::visit(ir_swizzle *ir) |
| { |
| unsigned swizzle[4] = { ir->mask.x, ir->mask.y, ir->mask.z, ir->mask.w }; |
| result = nir_swizzle(&b, evaluate_rvalue(ir->val), swizzle, |
| ir->type->vector_elements); |
| } |
| |
| void |
| nir_visitor::visit(ir_texture *ir) |
| { |
| unsigned num_srcs; |
| nir_texop op; |
| switch (ir->op) { |
| case ir_tex: |
| op = nir_texop_tex; |
| num_srcs = 1; /* coordinate */ |
| break; |
| |
| case ir_txb: |
| case ir_txl: |
| op = (ir->op == ir_txb) ? nir_texop_txb : nir_texop_txl; |
| num_srcs = 2; /* coordinate, bias/lod */ |
| break; |
| |
| case ir_txd: |
| op = nir_texop_txd; /* coordinate, dPdx, dPdy */ |
| num_srcs = 3; |
| break; |
| |
| case ir_txf: |
| op = nir_texop_txf; |
| if (ir->lod_info.lod != NULL) |
| num_srcs = 2; /* coordinate, lod */ |
| else |
| num_srcs = 1; /* coordinate */ |
| break; |
| |
| case ir_txf_ms: |
| op = nir_texop_txf_ms; |
| num_srcs = 2; /* coordinate, sample_index */ |
| break; |
| |
| case ir_txs: |
| op = nir_texop_txs; |
| if (ir->lod_info.lod != NULL) |
| num_srcs = 1; /* lod */ |
| else |
| num_srcs = 0; |
| break; |
| |
| case ir_lod: |
| op = nir_texop_lod; |
| num_srcs = 1; /* coordinate */ |
| break; |
| |
| case ir_tg4: |
| op = nir_texop_tg4; |
| num_srcs = 1; /* coordinate */ |
| break; |
| |
| case ir_query_levels: |
| op = nir_texop_query_levels; |
| num_srcs = 0; |
| break; |
| |
| case ir_texture_samples: |
| op = nir_texop_texture_samples; |
| num_srcs = 0; |
| break; |
| |
| case ir_samples_identical: |
| op = nir_texop_samples_identical; |
| num_srcs = 1; /* coordinate */ |
| break; |
| |
| default: |
| unreachable("not reached"); |
| } |
| |
| if (ir->projector != NULL) |
| num_srcs++; |
| if (ir->shadow_comparator != NULL) |
| num_srcs++; |
| /* offsets are constants we store inside nir_tex_intrs.offsets */ |
| if (ir->offset != NULL && !ir->offset->type->is_array()) |
| num_srcs++; |
| |
| /* Add one for the texture deref */ |
| num_srcs += 2; |
| |
| nir_tex_instr *instr = nir_tex_instr_create(this->shader, num_srcs); |
| |
| instr->op = op; |
| instr->sampler_dim = |
| (glsl_sampler_dim) ir->sampler->type->sampler_dimensionality; |
| instr->is_array = ir->sampler->type->sampler_array; |
| instr->is_shadow = ir->sampler->type->sampler_shadow; |
| if (instr->is_shadow) |
| instr->is_new_style_shadow = (ir->type->vector_elements == 1); |
| switch (ir->type->base_type) { |
| case GLSL_TYPE_FLOAT: |
| instr->dest_type = nir_type_float; |
| break; |
| case GLSL_TYPE_FLOAT16: |
| instr->dest_type = nir_type_float16; |
| break; |
| case GLSL_TYPE_INT16: |
| instr->dest_type = nir_type_int16; |
| break; |
| case GLSL_TYPE_UINT16: |
| instr->dest_type = nir_type_uint16; |
| break; |
| case GLSL_TYPE_INT: |
| instr->dest_type = nir_type_int; |
| break; |
| case GLSL_TYPE_BOOL: |
| case GLSL_TYPE_UINT: |
| instr->dest_type = nir_type_uint; |
| break; |
| default: |
| unreachable("not reached"); |
| } |
| |
| nir_deref_instr *sampler_deref = evaluate_deref(ir->sampler); |
| |
| /* check for bindless handles */ |
| if (sampler_deref->mode != nir_var_uniform || |
| nir_deref_instr_get_variable(sampler_deref)->data.bindless) { |
| nir_ssa_def *load = nir_load_deref(&b, sampler_deref); |
| instr->src[0].src = nir_src_for_ssa(load); |
| instr->src[0].src_type = nir_tex_src_texture_handle; |
| instr->src[1].src = nir_src_for_ssa(load); |
| instr->src[1].src_type = nir_tex_src_sampler_handle; |
| } else { |
| instr->src[0].src = nir_src_for_ssa(&sampler_deref->dest.ssa); |
| instr->src[0].src_type = nir_tex_src_texture_deref; |
| instr->src[1].src = nir_src_for_ssa(&sampler_deref->dest.ssa); |
| instr->src[1].src_type = nir_tex_src_sampler_deref; |
| } |
| |
| unsigned src_number = 2; |
| |
| if (ir->coordinate != NULL) { |
| instr->coord_components = ir->coordinate->type->vector_elements; |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->coordinate)); |
| instr->src[src_number].src_type = nir_tex_src_coord; |
| src_number++; |
| } |
| |
| if (ir->projector != NULL) { |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->projector)); |
| instr->src[src_number].src_type = nir_tex_src_projector; |
| src_number++; |
| } |
| |
| if (ir->shadow_comparator != NULL) { |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->shadow_comparator)); |
| instr->src[src_number].src_type = nir_tex_src_comparator; |
| src_number++; |
| } |
| |
| if (ir->offset != NULL) { |
| if (ir->offset->type->is_array()) { |
| for (int i = 0; i < ir->offset->type->array_size(); i++) { |
| const ir_constant *c = |
| ir->offset->as_constant()->get_array_element(i); |
| |
| for (unsigned j = 0; j < 2; ++j) { |
| int val = c->get_int_component(j); |
| assert(val <= 31 && val >= -32); |
| instr->tg4_offsets[i][j] = val; |
| } |
| } |
| } else { |
| assert(ir->offset->type->is_vector() || ir->offset->type->is_scalar()); |
| |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->offset)); |
| instr->src[src_number].src_type = nir_tex_src_offset; |
| src_number++; |
| } |
| } |
| |
| switch (ir->op) { |
| case ir_txb: |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->lod_info.bias)); |
| instr->src[src_number].src_type = nir_tex_src_bias; |
| src_number++; |
| break; |
| |
| case ir_txl: |
| case ir_txf: |
| case ir_txs: |
| if (ir->lod_info.lod != NULL) { |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->lod_info.lod)); |
| instr->src[src_number].src_type = nir_tex_src_lod; |
| src_number++; |
| } |
| break; |
| |
| case ir_txd: |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->lod_info.grad.dPdx)); |
| instr->src[src_number].src_type = nir_tex_src_ddx; |
| src_number++; |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->lod_info.grad.dPdy)); |
| instr->src[src_number].src_type = nir_tex_src_ddy; |
| src_number++; |
| break; |
| |
| case ir_txf_ms: |
| instr->src[src_number].src = |
| nir_src_for_ssa(evaluate_rvalue(ir->lod_info.sample_index)); |
| instr->src[src_number].src_type = nir_tex_src_ms_index; |
| src_number++; |
| break; |
| |
| case ir_tg4: |
| instr->component = ir->lod_info.component->as_constant()->value.u[0]; |
| break; |
| |
| default: |
| break; |
| } |
| |
| assert(src_number == num_srcs); |
| |
| unsigned bit_size = glsl_get_bit_size(ir->type); |
| add_instr(&instr->instr, nir_tex_instr_dest_size(instr), bit_size); |
| } |
| |
| void |
| nir_visitor::visit(ir_constant *ir) |
| { |
| /* |
| * We don't know if this variable is an array or struct that gets |
| * dereferenced, so do the safe thing an make it a variable with a |
| * constant initializer and return a dereference. |
| */ |
| |
| nir_variable *var = |
| nir_local_variable_create(this->impl, ir->type, "const_temp"); |
| var->data.read_only = true; |
| var->constant_initializer = constant_copy(ir, var); |
| |
| this->deref = nir_build_deref_var(&b, var); |
| } |
| |
| void |
| nir_visitor::visit(ir_dereference_variable *ir) |
| { |
| if (ir->variable_referenced()->data.mode == ir_var_function_out) { |
| unsigned i = (sig->return_type != glsl_type::void_type) ? 1 : 0; |
| |
| foreach_in_list(ir_variable, param, &sig->parameters) { |
| if (param == ir->variable_referenced()) { |
| break; |
| } |
| i++; |
| } |
| |
| this->deref = nir_build_deref_cast(&b, nir_load_param(&b, i), |
| nir_var_function_temp, ir->type, 0); |
| return; |
| } |
| |
| assert(ir->variable_referenced()->data.mode != ir_var_function_inout); |
| |
| struct hash_entry *entry = |
| _mesa_hash_table_search(this->var_table, ir->var); |
| assert(entry); |
| nir_variable *var = (nir_variable *) entry->data; |
| |
| this->deref = nir_build_deref_var(&b, var); |
| } |
| |
| void |
| nir_visitor::visit(ir_dereference_record *ir) |
| { |
| ir->record->accept(this); |
| |
| int field_index = ir->field_idx; |
| assert(field_index >= 0); |
| |
| this->deref = nir_build_deref_struct(&b, this->deref, field_index); |
| } |
| |
| void |
| nir_visitor::visit(ir_dereference_array *ir) |
| { |
| nir_ssa_def *index = evaluate_rvalue(ir->array_index); |
| |
| ir->array->accept(this); |
| |
| this->deref = nir_build_deref_array(&b, this->deref, index); |
| } |
| |
| void |
| nir_visitor::visit(ir_barrier *) |
| { |
| if (shader->info.stage == MESA_SHADER_COMPUTE) { |
| nir_intrinsic_instr *shared_barrier = |
| nir_intrinsic_instr_create(this->shader, |
| nir_intrinsic_memory_barrier_shared); |
| nir_builder_instr_insert(&b, &shared_barrier->instr); |
| } else if (shader->info.stage == MESA_SHADER_TESS_CTRL) { |
| nir_intrinsic_instr *patch_barrier = |
| nir_intrinsic_instr_create(this->shader, |
| nir_intrinsic_memory_barrier_tcs_patch); |
| nir_builder_instr_insert(&b, &patch_barrier->instr); |
| } |
| |
| nir_intrinsic_instr *instr = |
| nir_intrinsic_instr_create(this->shader, nir_intrinsic_control_barrier); |
| nir_builder_instr_insert(&b, &instr->instr); |
| } |
| |
| nir_shader * |
| glsl_float64_funcs_to_nir(struct gl_context *ctx, |
| const nir_shader_compiler_options *options) |
| { |
| /* We pretend it's a vertex shader. Ultimately, the stage shouldn't |
| * matter because we're not optimizing anything here. |
| */ |
| struct gl_shader *sh = _mesa_new_shader(-1, MESA_SHADER_VERTEX); |
| sh->Source = float64_source; |
| sh->CompileStatus = COMPILE_FAILURE; |
| _mesa_glsl_compile_shader(ctx, sh, false, false, true); |
| |
| if (!sh->CompileStatus) { |
| if (sh->InfoLog) { |
| _mesa_problem(ctx, |
| "fp64 software impl compile failed:\n%s\nsource:\n%s\n", |
| sh->InfoLog, float64_source); |
| } |
| return NULL; |
| } |
| |
| nir_shader *nir = nir_shader_create(NULL, MESA_SHADER_VERTEX, options, NULL); |
| |
| nir_visitor v1(ctx, nir); |
| nir_function_visitor v2(&v1); |
| v2.run(sh->ir); |
| visit_exec_list(sh->ir, &v1); |
| |
| /* _mesa_delete_shader will try to free sh->Source but it's static const */ |
| sh->Source = NULL; |
| _mesa_delete_shader(ctx, sh); |
| |
| nir_validate_shader(nir, "float64_funcs_to_nir"); |
| |
| NIR_PASS_V(nir, nir_lower_variable_initializers, nir_var_function_temp); |
| NIR_PASS_V(nir, nir_lower_returns); |
| NIR_PASS_V(nir, nir_inline_functions); |
| NIR_PASS_V(nir, nir_opt_deref); |
| |
| /* Do some optimizations to clean up the shader now. By optimizing the |
| * functions in the library, we avoid having to re-do that work every |
| * time we inline a copy of a function. Reducing basic blocks also helps |
| * with compile times. |
| */ |
| NIR_PASS_V(nir, nir_lower_vars_to_ssa); |
| NIR_PASS_V(nir, nir_copy_prop); |
| NIR_PASS_V(nir, nir_opt_dce); |
| NIR_PASS_V(nir, nir_opt_cse); |
| NIR_PASS_V(nir, nir_opt_gcm, true); |
| NIR_PASS_V(nir, nir_opt_peephole_select, 1, false, false); |
| NIR_PASS_V(nir, nir_opt_dce); |
| |
| return nir; |
| } |