1 ; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN-SAFE -check-prefix=GCN -check-prefix=SI %s 2 ; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN-SAFE -check-prefix=GCN -check-prefix=CI %s 3 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN-SAFE -check-prefix=GCN -check-prefix=FUNC %s 4 ; RUN: llc -march=amdgcn -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN-UNSAFE -check-prefix=GCN %s 5 ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN-UNSAFE -check-prefix=GCN %s 6 7 declare float @llvm.fabs.f32(float) #0 8 declare float @llvm.floor.f32(float) #0 9 10 ; GCN-LABEL: {{^}}fract_f32: 11 ; GCN-SAFE: v_floor_f32_e32 [[FLR:v[0-9]+]], [[INPUT:v[0-9]+]] 12 ; GCN-SAFE: v_subrev_f32_e32 [[RESULT:v[0-9]+]], [[FLR]], [[INPUT]] 13 14 ; GCN-UNSAFE: v_fract_f32_e32 [[RESULT:v[0-9]+]], [[INPUT:v[0-9]+]] 15 16 ; GCN: buffer_store_dword [[RESULT]] 17 define void @fract_f32(float addrspace(1)* %out, float addrspace(1)* %src) #1 { 18 %x = load float, float addrspace(1)* %src 19 %floor.x = call float @llvm.floor.f32(float %x) 20 %fract = fsub float %x, %floor.x 21 store float %fract, float addrspace(1)* %out 22 ret void 23 } 24 25 ; GCN-LABEL: {{^}}fract_f32_neg: 26 ; GCN-SAFE: v_floor_f32_e64 [[FLR:v[0-9]+]], -[[INPUT:v[0-9]+]] 27 ; GCN-SAFE: v_sub_f32_e64 [[RESULT:v[0-9]+]], -[[INPUT]], [[FLR]] 28 29 ; GCN-UNSAFE: v_fract_f32_e64 [[RESULT:v[0-9]+]], -[[INPUT:v[0-9]+]] 30 31 ; GCN: buffer_store_dword [[RESULT]] 32 define void @fract_f32_neg(float addrspace(1)* %out, float addrspace(1)* %src) #1 { 33 %x = load float, float addrspace(1)* %src 34 %x.neg = fsub float -0.0, %x 35 %floor.x.neg = call float @llvm.floor.f32(float %x.neg) 36 %fract = fsub float %x.neg, %floor.x.neg 37 store float %fract, float addrspace(1)* %out 38 ret void 39 } 40 41 ; GCN-LABEL: {{^}}fract_f32_neg_abs: 42 ; GCN-SAFE: v_floor_f32_e64 [[FLR:v[0-9]+]], -|[[INPUT:v[0-9]+]]| 43 ; GCN-SAFE: v_sub_f32_e64 [[RESULT:v[0-9]+]], -|[[INPUT]]|, [[FLR]] 44 45 ; GCN-UNSAFE: v_fract_f32_e64 [[RESULT:v[0-9]+]], -|[[INPUT:v[0-9]+]]| 46 47 ; GCN: buffer_store_dword [[RESULT]] 48 define void @fract_f32_neg_abs(float addrspace(1)* %out, float addrspace(1)* %src) #1 { 49 %x = load float, float addrspace(1)* %src 50 %abs.x = call float @llvm.fabs.f32(float %x) 51 %neg.abs.x = fsub float -0.0, %abs.x 52 %floor.neg.abs.x = call float @llvm.floor.f32(float %neg.abs.x) 53 %fract = fsub float %neg.abs.x, %floor.neg.abs.x 54 store float %fract, float addrspace(1)* %out 55 ret void 56 } 57 58 ; GCN-LABEL: {{^}}multi_use_floor_fract_f32: 59 ; GCN-UNSAFE-DAG: v_floor_f32_e32 [[FLOOR:v[0-9]+]], [[INPUT:v[0-9]+]] 60 ; GCN-UNSAFE-DAG: v_fract_f32_e32 [[FRACT:v[0-9]+]], [[INPUT:v[0-9]+]] 61 62 ; GCN-UNSAFE: buffer_store_dword [[FLOOR]] 63 ; GCN-UNSAFE: buffer_store_dword [[FRACT]] 64 define void @multi_use_floor_fract_f32(float addrspace(1)* %out, float addrspace(1)* %src) #1 { 65 %x = load float, float addrspace(1)* %src 66 %floor.x = call float @llvm.floor.f32(float %x) 67 %fract = fsub float %x, %floor.x 68 store volatile float %floor.x, float addrspace(1)* %out 69 store volatile float %fract, float addrspace(1)* %out 70 ret void 71 } 72 73 attributes #0 = { nounwind readnone } 74 attributes #1 = { nounwind } 75
