| ; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s --check-prefix=EG --check-prefix=FUNC |
| ; RUN: llc < %s -march=r600 -mcpu=cayman | FileCheck %s --check-prefix=EG --check-prefix=FUNC |
| ; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC |
| ; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s --check-prefix=SI --check-prefix=FUNC |
| |
| ; FUNC-LABEL: {{^}}u32_mul24: |
| ; EG: MUL_UINT24 {{[* ]*}}T{{[0-9]\.[XYZW]}}, KC0[2].Z, KC0[2].W |
| ; SI: v_mul_u32_u24 |
| |
| define void @u32_mul24(i32 addrspace(1)* %out, i32 %a, i32 %b) { |
| entry: |
| %0 = shl i32 %a, 8 |
| %a_24 = lshr i32 %0, 8 |
| %1 = shl i32 %b, 8 |
| %b_24 = lshr i32 %1, 8 |
| %2 = mul i32 %a_24, %b_24 |
| store i32 %2, i32 addrspace(1)* %out |
| ret void |
| } |
| |
| ; FUNC-LABEL: {{^}}i16_mul24: |
| ; EG: MUL_UINT24 {{[* ]*}}T{{[0-9]}}.[[MUL_CHAN:[XYZW]]] |
| ; The result must be sign-extended |
| ; EG: BFE_INT {{[* ]*}}T{{[0-9]}}.{{[XYZW]}}, PV.[[MUL_CHAN]], 0.0, literal.x |
| ; EG: 16 |
| ; SI: v_mul_u32_u24_e{{(32|64)}} [[MUL:v[0-9]]], {{[sv][0-9], [sv][0-9]}} |
| ; SI: v_bfe_i32 v{{[0-9]}}, [[MUL]], 0, 16 |
| define void @i16_mul24(i32 addrspace(1)* %out, i16 %a, i16 %b) { |
| entry: |
| %0 = mul i16 %a, %b |
| %1 = sext i16 %0 to i32 |
| store i32 %1, i32 addrspace(1)* %out |
| ret void |
| } |
| |
| ; FUNC-LABEL: {{^}}i8_mul24: |
| ; EG: MUL_UINT24 {{[* ]*}}T{{[0-9]}}.[[MUL_CHAN:[XYZW]]] |
| ; The result must be sign-extended |
| ; EG: BFE_INT {{[* ]*}}T{{[0-9]}}.{{[XYZW]}}, PV.[[MUL_CHAN]], 0.0, literal.x |
| ; SI: v_mul_u32_u24_e{{(32|64)}} [[MUL:v[0-9]]], {{[sv][0-9], [sv][0-9]}} |
| ; SI: v_bfe_i32 v{{[0-9]}}, [[MUL]], 0, 8 |
| |
| define void @i8_mul24(i32 addrspace(1)* %out, i8 %a, i8 %b) { |
| entry: |
| %0 = mul i8 %a, %b |
| %1 = sext i8 %0 to i32 |
| store i32 %1, i32 addrspace(1)* %out |
| ret void |
| } |
| |
| ; Multiply with 24-bit inputs and 64-bit output |
| ; FUNC_LABEL: {{^}}mul24_i64: |
| ; EG; MUL_UINT24 |
| ; EG: MULHI |
| ; SI: v_mul_u32_u24 |
| ; FIXME: SI support 24-bit mulhi |
| ; SI: v_mul_hi_u32 |
| define void @mul24_i64(i64 addrspace(1)* %out, i64 %a, i64 %b) { |
| entry: |
| %0 = shl i64 %a, 40 |
| %a_24 = lshr i64 %0, 40 |
| %1 = shl i64 %b, 40 |
| %b_24 = lshr i64 %1, 40 |
| %2 = mul i64 %a_24, %b_24 |
| store i64 %2, i64 addrspace(1)* %out |
| ret void |
| } |