1 ; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 2 3 declare float @llvm.amdgcn.rsq.legacy(float) #0 4 5 ; FUNC-LABEL: {{^}}rsq_legacy_f32: 6 ; SI: v_rsq_legacy_f32_e32 {{v[0-9]+}}, {{s[0-9]+}} 7 define amdgpu_kernel void @rsq_legacy_f32(float addrspace(1)* %out, float %src) #1 { 8 %rsq = call float @llvm.amdgcn.rsq.legacy(float %src) #0 9 store float %rsq, float addrspace(1)* %out, align 4 10 ret void 11 } 12 13 ; TODO: Really these should be constant folded 14 ; FUNC-LABEL: {{^}}rsq_legacy_f32_constant_4.0 15 ; SI: v_rsq_legacy_f32_e32 {{v[0-9]+}}, 4.0 16 define amdgpu_kernel void @rsq_legacy_f32_constant_4.0(float addrspace(1)* %out) #1 { 17 %rsq = call float @llvm.amdgcn.rsq.legacy(float 4.0) #0 18 store float %rsq, float addrspace(1)* %out, align 4 19 ret void 20 } 21 22 ; FUNC-LABEL: {{^}}rsq_legacy_f32_constant_100.0 23 ; SI: v_rsq_legacy_f32_e32 {{v[0-9]+}}, 0x42c80000 24 define amdgpu_kernel void @rsq_legacy_f32_constant_100.0(float addrspace(1)* %out) #1 { 25 %rsq = call float @llvm.amdgcn.rsq.legacy(float 100.0) #0 26 store float %rsq, float addrspace(1)* %out, align 4 27 ret void 28 } 29 30 ; FUNC-LABEL: {{^}}rsq_legacy_undef_f32: 31 ; SI-NOT: v_rsq_legacy_f32 32 define amdgpu_kernel void @rsq_legacy_undef_f32(float addrspace(1)* %out) #1 { 33 %rsq = call float @llvm.amdgcn.rsq.legacy(float undef) 34 store float %rsq, float addrspace(1)* %out, align 4 35 ret void 36 } 37 38 attributes #0 = { nounwind readnone } 39 attributes #1 = { nounwind } 40
