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840d57e330
These instructions can only take a limited input range, and return the constant value 1 out of range. We should do range reduction to be able to process arbitrary values. Use a FRACT instruction after normalization to achieve this. Also add a test for constant folding with the lowered code with unsafe-fp-math enabled. v2: use DAG lowering instead of intrinsic, adapt test v3: calculate constant, fold pattern into instruction definition v4: misc style fixes, add sin-fold testcase, cosmetics Patch by Grigori Goronzy llvm-svn: 213458
60 lines
1.6 KiB
LLVM
60 lines
1.6 KiB
LLVM
;RUN: llc -march=r600 -mcpu=redwood < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
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;RUN: llc -march=r600 -mcpu=SI < %s | FileCheck -check-prefix=SI -check-prefix=SI-SAFE -check-prefix=FUNC %s
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;RUN: llc -march=r600 -mcpu=SI -enable-unsafe-fp-math < %s | FileCheck -check-prefix=SI -check-prefix=SI-UNSAFE -check-prefix=FUNC %s
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;FUNC-LABEL: test
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;EG: MULADD_IEEE *
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;EG: FRACT *
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;EG: ADD *
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;EG: SIN * T{{[0-9]+\.[XYZW], PV\.[XYZW]}}
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;EG-NOT: SIN
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;SI: V_MUL_F32
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;SI: V_FRACT_F32
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;SI: V_SIN_F32
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;SI-NOT: V_SIN_F32
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define void @test(float addrspace(1)* %out, float %x) #1 {
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%sin = call float @llvm.sin.f32(float %x)
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store float %sin, float addrspace(1)* %out
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ret void
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}
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;FUNC-LABEL: testf
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;SI-UNSAFE: 4.774
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;SI-UNSAFE: V_MUL_F32
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;SI-SAFE: V_MUL_F32
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;SI-SAFE: V_MUL_F32
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;SI: V_FRACT_F32
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;SI: V_SIN_F32
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;SI-NOT: V_SIN_F32
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define void @testf(float addrspace(1)* %out, float %x) #1 {
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%y = fmul float 3.0, %x
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%sin = call float @llvm.sin.f32(float %y)
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store float %sin, float addrspace(1)* %out
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ret void
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}
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;FUNC-LABEL: testv
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;EG: SIN * T{{[0-9]+\.[XYZW], PV\.[XYZW]}}
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;EG: SIN * T{{[0-9]+\.[XYZW], PV\.[XYZW]}}
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;EG: SIN * T{{[0-9]+\.[XYZW], PV\.[XYZW]}}
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;EG: SIN * T{{[0-9]+\.[XYZW], PV\.[XYZW]}}
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;EG-NOT: SIN
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;SI: V_SIN_F32
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;SI: V_SIN_F32
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;SI: V_SIN_F32
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;SI: V_SIN_F32
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;SI-NOT: V_SIN_F32
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define void @testv(<4 x float> addrspace(1)* %out, <4 x float> %vx) #1 {
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%sin = call <4 x float> @llvm.sin.v4f32( <4 x float> %vx)
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store <4 x float> %sin, <4 x float> addrspace(1)* %out
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ret void
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}
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declare float @llvm.sin.f32(float) readnone
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declare <4 x float> @llvm.sin.v4f32(<4 x float>) readnone
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attributes #0 = { "ShaderType"="0" }
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