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https://github.com/RPCS3/llvm-mirror.git
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f5367daffc
Remove broken patterns matching it. This was matching the unsafe math pattern and expanding the fix for the buggy instruction from the pattern. The problems are also on CI. Remove the workarounds and only use fract with unsafe math or from the intrinsic. llvm-svn: 271078
75 lines
3.2 KiB
LLVM
75 lines
3.2 KiB
LLVM
; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN-SAFE -check-prefix=GCN -check-prefix=SI %s
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; RUN: llc -march=amdgcn -mcpu=bonaire -verify-machineinstrs < %s | FileCheck -check-prefix=GCN-SAFE -check-prefix=GCN -check-prefix=CI %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=GCN-SAFE -check-prefix=GCN -check-prefix=FUNC %s
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; RUN: llc -march=amdgcn -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN-UNSAFE -check-prefix=GCN %s
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; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=GCN-UNSAFE -check-prefix=GCN %s
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declare float @llvm.fabs.f32(float) #0
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declare float @llvm.floor.f32(float) #0
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; GCN-LABEL: {{^}}fract_f32:
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; GCN-SAFE: v_floor_f32_e32 [[FLR:v[0-9]+]], [[INPUT:v[0-9]+]]
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; GCN-SAFE: v_subrev_f32_e32 [[RESULT:v[0-9]+]], [[FLR]], [[INPUT]]
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; GCN-UNSAFE: v_fract_f32_e32 [[RESULT:v[0-9]+]], [[INPUT:v[0-9]+]]
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; GCN: buffer_store_dword [[RESULT]]
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define void @fract_f32(float addrspace(1)* %out, float addrspace(1)* %src) #1 {
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%x = load float, float addrspace(1)* %src
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%floor.x = call float @llvm.floor.f32(float %x)
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%fract = fsub float %x, %floor.x
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store float %fract, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}fract_f32_neg:
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; GCN-SAFE: v_floor_f32_e64 [[FLR:v[0-9]+]], -[[INPUT:v[0-9]+]]
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; GCN-SAFE: v_sub_f32_e64 [[RESULT:v[0-9]+]], -[[INPUT]], [[FLR]]
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; GCN-UNSAFE: v_fract_f32_e64 [[RESULT:v[0-9]+]], -[[INPUT:v[0-9]+]]
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; GCN: buffer_store_dword [[RESULT]]
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define void @fract_f32_neg(float addrspace(1)* %out, float addrspace(1)* %src) #1 {
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%x = load float, float addrspace(1)* %src
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%x.neg = fsub float -0.0, %x
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%floor.x.neg = call float @llvm.floor.f32(float %x.neg)
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%fract = fsub float %x.neg, %floor.x.neg
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store float %fract, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}fract_f32_neg_abs:
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; GCN-SAFE: v_floor_f32_e64 [[FLR:v[0-9]+]], -|[[INPUT:v[0-9]+]]|
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; GCN-SAFE: v_sub_f32_e64 [[RESULT:v[0-9]+]], -|[[INPUT]]|, [[FLR]]
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; GCN-UNSAFE: v_fract_f32_e64 [[RESULT:v[0-9]+]], -|[[INPUT:v[0-9]+]]|
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; GCN: buffer_store_dword [[RESULT]]
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define void @fract_f32_neg_abs(float addrspace(1)* %out, float addrspace(1)* %src) #1 {
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%x = load float, float addrspace(1)* %src
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%abs.x = call float @llvm.fabs.f32(float %x)
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%neg.abs.x = fsub float -0.0, %abs.x
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%floor.neg.abs.x = call float @llvm.floor.f32(float %neg.abs.x)
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%fract = fsub float %neg.abs.x, %floor.neg.abs.x
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store float %fract, float addrspace(1)* %out
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ret void
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}
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; GCN-LABEL: {{^}}multi_use_floor_fract_f32:
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; GCN-UNSAFE-DAG: v_floor_f32_e32 [[FLOOR:v[0-9]+]], [[INPUT:v[0-9]+]]
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; GCN-UNSAFE-DAG: v_fract_f32_e32 [[FRACT:v[0-9]+]], [[INPUT:v[0-9]+]]
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; GCN-UNSAFE: buffer_store_dword [[FLOOR]]
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; GCN-UNSAFE: buffer_store_dword [[FRACT]]
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define void @multi_use_floor_fract_f32(float addrspace(1)* %out, float addrspace(1)* %src) #1 {
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%x = load float, float addrspace(1)* %src
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%floor.x = call float @llvm.floor.f32(float %x)
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%fract = fsub float %x, %floor.x
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store volatile float %floor.x, float addrspace(1)* %out
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store volatile float %fract, float addrspace(1)* %out
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ret void
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}
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attributes #0 = { nounwind readnone }
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attributes #1 = { nounwind }
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