1 ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 2 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=VI -check-prefix=FUNC %s 3 ; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s 4 5 6 declare float @llvm.AMDGPU.rsq.clamped.f32(float) nounwind readnone 7 8 ; FUNC-LABEL: {{^}}rsq_clamped_f32: 9 ; SI: v_rsq_clamp_f32_e32 10 11 ; VI: v_rsq_f32_e32 [[RSQ:v[0-9]+]], {{s[0-9]+}} 12 ; VI: v_min_f32_e32 [[MIN:v[0-9]+]], 0x7f7fffff, [[RSQ]] 13 ; TODO: this constant should be folded: 14 ; VI: v_mov_b32_e32 [[MINFLT:v[0-9]+]], 0xff7fffff 15 ; VI: v_max_f32_e32 {{v[0-9]+}}, [[MIN]], [[MINFLT]] 16 17 ; EG: RECIPSQRT_CLAMPED 18 19 define void @rsq_clamped_f32(float addrspace(1)* %out, float %src) nounwind { 20 %rsq_clamped = call float @llvm.AMDGPU.rsq.clamped.f32(float %src) nounwind readnone 21 store float %rsq_clamped, float addrspace(1)* %out, align 4 22 ret void 23 } 24
