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b377a5e42b
This patch adds shuffle matching for the SSE3 MOVDDUP, MOVSLDUP and MOVSHDUP instructions. The big use of these being that they avoid many single source shuffles from needing to use (pre-AVX) dual source instructions such as SHUFPD/SHUFPS: causing extra moves and preventing load folds. Adding these instructions uncovered an issue in XFormVExtractWithShuffleIntoLoad which crashed on single operand shuffle instructions (now fixed). It also involved fixing getTargetShuffleMask to correctly identify theses instructions as unary shuffles. Also adds a missing tablegen pattern for MOVDDUP. Differential Revision: http://reviews.llvm.org/D7042 llvm-svn: 226716
69 lines
2.0 KiB
LLVM
69 lines
2.0 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 -enable-unsafe-fp-math | FileCheck %s --check-prefix=GNU_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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; 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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; 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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%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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