| ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s |
| ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=FUNC %s |
| ; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s |
| |
| |
| declare float @llvm.AMDGPU.rsq.clamped.f32(float) nounwind readnone |
| |
| ; FUNC-LABEL: {{^}}rsq_clamped_f32: |
| ; SI: v_rsq_clamp_f32_e32 |
| |
| ; VI: v_rsq_f32_e32 [[RSQ:v[0-9]+]], {{s[0-9]+}} |
| ; VI: v_min_f32_e32 [[MIN:v[0-9]+]], 0x7f7fffff, [[RSQ]] |
| ; TODO: this constant should be folded: |
| ; VI: v_mov_b32_e32 [[MINFLT:v[0-9]+]], 0xff7fffff |
| ; VI: v_max_f32_e32 {{v[0-9]+}}, [[MIN]], [[MINFLT]] |
| |
| ; EG: RECIPSQRT_CLAMPED |
| |
| define void @rsq_clamped_f32(float addrspace(1)* %out, float %src) nounwind { |
| %rsq_clamped = call float @llvm.AMDGPU.rsq.clamped.f32(float %src) nounwind readnone |
| store float %rsq_clamped, float addrspace(1)* %out, align 4 |
| ret void |
| } |