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Summary: canCombineSinCosLibcall() would previously combine sin+cos into sincos for GNUX32/GNUEABI/GNUEABIHF regardless of whether UnsafeFPMath were set or not. However, GNU would only combine them for UnsafeFPMath because sincos does not set errno like sin and cos do. It seems likely that this is an oversight. Reviewers: t.p.northover Subscribers: t.p.northover, aemerson, llvm-commits, rengolin Differential Revision: http://reviews.llvm.org/D21431 llvm-svn: 273259
99 lines
2.8 KiB
LLVM
99 lines
2.8 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-macosx10.9.0 -mcpu=core2 | FileCheck %s --check-prefix=OSX_SINCOS
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; RUN: llc < %s -mtriple=x86_64-apple-macosx10.8.0 -mcpu=core2 | FileCheck %s --check-prefix=OSX_NOOPT
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; RUN: llc < %s -mtriple=x86_64-pc-linux-gnu -mcpu=core2 | FileCheck %s --check-prefix=GNU_NOOPT
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; RUN: llc < %s -mtriple=x86_64-pc-linux-gnu -mcpu=core2 -enable-unsafe-fp-math | FileCheck %s --check-prefix=GNU_SINCOS
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; RUN: llc < %s -mtriple=x86_64-pc-linux-gnux32 -mcpu=core2 -enable-unsafe-fp-math | FileCheck %s --check-prefix=GNUX32_SINCOS
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; Combine sin / cos into a single call.
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; rdar://13087969
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; rdar://13599493
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define float @test1(float %x) nounwind {
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entry:
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; GNU_SINCOS-LABEL: test1:
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; GNU_SINCOS: callq sincosf
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; GNU_SINCOS: movss 4(%rsp), %xmm0
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; GNU_SINCOS: addss (%rsp), %xmm0
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; GNUX32_SINCOS-LABEL: test1:
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; GNUX32_SINCOS: callq sincosf
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; GNUX32_SINCOS: movss 4(%esp), %xmm0
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; GNUX32_SINCOS: addss (%esp), %xmm0
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; GNU_NOOPT: test1
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; GNU_NOOPT: callq sinf
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; GNU_NOOPT: callq cosf
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; OSX_SINCOS-LABEL: test1:
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; OSX_SINCOS: callq ___sincosf_stret
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; OSX_SINCOS: movshdup {{.*}} xmm1 = xmm0[1,1,3,3]
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; OSX_SINCOS: addss %xmm1, %xmm0
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; OSX_NOOPT: test1
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; OSX_NOOPT: callq _sinf
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; OSX_NOOPT: callq _cosf
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%call = tail call float @sinf(float %x) nounwind readnone
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%call1 = tail call float @cosf(float %x) nounwind readnone
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%add = fadd float %call, %call1
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ret float %add
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}
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define double @test2(double %x) nounwind {
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entry:
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; GNU_SINCOS-LABEL: test2:
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; GNU_SINCOS: callq sincos
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; GNU_SINCOS: movsd 16(%rsp), %xmm0
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; GNU_SINCOS: addsd 8(%rsp), %xmm0
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; GNUX32_SINCOS-LABEL: test2:
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; GNUX32_SINCOS: callq sincos
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; GNUX32_SINCOS: movsd 16(%esp), %xmm0
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; GNUX32_SINCOS: addsd 8(%esp), %xmm0
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; GNU_NOOPT: test2:
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; GNU_NOOPT: callq sin
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; GNU_NOOPT: callq cos
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; OSX_SINCOS-LABEL: test2:
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; OSX_SINCOS: callq ___sincos_stret
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; OSX_SINCOS: addsd %xmm1, %xmm0
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; OSX_NOOPT: test2
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; OSX_NOOPT: callq _sin
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; OSX_NOOPT: callq _cos
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%call = tail call double @sin(double %x) nounwind readnone
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%call1 = tail call double @cos(double %x) nounwind readnone
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%add = fadd double %call, %call1
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ret double %add
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}
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define x86_fp80 @test3(x86_fp80 %x) nounwind {
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entry:
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; GNU_SINCOS-LABEL: test3:
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; GNU_SINCOS: callq sinl
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; GNU_SINCOS: callq cosl
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; GNU_SINCOS: ret
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; GNUX32_SINCOS-LABEL: test3:
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; GNUX32_SINCOS: callq sinl
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; GNUX32_SINCOS: callq cosl
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; GNUX32_SINCOS: ret
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; GNU_NOOPT: test3:
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; GNU_NOOPT: callq sinl
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; GNU_NOOPT: callq cosl
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%call = tail call x86_fp80 @sinl(x86_fp80 %x) nounwind
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%call1 = tail call x86_fp80 @cosl(x86_fp80 %x) nounwind
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%add = fadd x86_fp80 %call, %call1
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ret x86_fp80 %add
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}
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declare float @sinf(float) readonly
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declare double @sin(double) readonly
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declare float @cosf(float) readonly
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declare double @cos(double) readonly
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declare x86_fp80 @sinl(x86_fp80)
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declare x86_fp80 @cosl(x86_fp80)
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