1 ; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 2 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s 3 4 declare float @llvm.amdgcn.rsq.f32(float) #0 5 declare double @llvm.amdgcn.rsq.f64(double) #0 6 7 ; FUNC-LABEL: {{^}}rsq_f32: 8 ; SI: v_rsq_f32_e32 {{v[0-9]+}}, {{s[0-9]+}} 9 define void @rsq_f32(float addrspace(1)* %out, float %src) #1 { 10 %rsq = call float @llvm.amdgcn.rsq.f32(float %src) #0 11 store float %rsq, float addrspace(1)* %out, align 4 12 ret void 13 } 14 15 ; TODO: Really these should be constant folded 16 ; FUNC-LABEL: {{^}}rsq_f32_constant_4.0 17 ; SI: v_rsq_f32_e32 {{v[0-9]+}}, 4.0 18 define void @rsq_f32_constant_4.0(float addrspace(1)* %out) #1 { 19 %rsq = call float @llvm.amdgcn.rsq.f32(float 4.0) #0 20 store float %rsq, float addrspace(1)* %out, align 4 21 ret void 22 } 23 24 ; FUNC-LABEL: {{^}}rsq_f32_constant_100.0 25 ; SI: v_rsq_f32_e32 {{v[0-9]+}}, 0x42c80000 26 define void @rsq_f32_constant_100.0(float addrspace(1)* %out) #1 { 27 %rsq = call float @llvm.amdgcn.rsq.f32(float 100.0) #0 28 store float %rsq, float addrspace(1)* %out, align 4 29 ret void 30 } 31 32 ; FUNC-LABEL: {{^}}rsq_f64: 33 ; SI: v_rsq_f64_e32 {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}} 34 define void @rsq_f64(double addrspace(1)* %out, double %src) #1 { 35 %rsq = call double @llvm.amdgcn.rsq.f64(double %src) #0 36 store double %rsq, double addrspace(1)* %out, align 4 37 ret void 38 } 39 40 ; TODO: Really these should be constant folded 41 ; FUNC-LABEL: {{^}}rsq_f64_constant_4.0 42 ; SI: v_rsq_f64_e32 {{v\[[0-9]+:[0-9]+\]}}, 4.0 43 define void @rsq_f64_constant_4.0(double addrspace(1)* %out) #1 { 44 %rsq = call double @llvm.amdgcn.rsq.f64(double 4.0) #0 45 store double %rsq, double addrspace(1)* %out, align 4 46 ret void 47 } 48 49 ; FUNC-LABEL: {{^}}rsq_f64_constant_100.0 50 ; SI-DAG: s_mov_b32 s{{[0-9]+}}, 0x40590000 51 ; SI-DAG: s_mov_b32 s{{[0-9]+}}, 0{{$}} 52 ; SI: v_rsq_f64_e32 {{v\[[0-9]+:[0-9]+\]}}, {{s\[[0-9]+:[0-9]+\]}} 53 define void @rsq_f64_constant_100.0(double addrspace(1)* %out) #1 { 54 %rsq = call double @llvm.amdgcn.rsq.f64(double 100.0) #0 55 store double %rsq, double addrspace(1)* %out, align 4 56 ret void 57 } 58 59 ; FUNC-LABEL: {{^}}rsq_undef_f32: 60 ; SI-NOT: v_rsq_f32 61 define void @rsq_undef_f32(float addrspace(1)* %out) #1 { 62 %rsq = call float @llvm.amdgcn.rsq.f32(float undef) 63 store float %rsq, float addrspace(1)* %out, align 4 64 ret void 65 } 66 67 attributes #0 = { nounwind readnone } 68 attributes #1 = { nounwind } 69
