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2954bb814e
- X86 unfolding should check if the instructions being unfolded has memoperands. If there is no memoperands, then it must assume conservative alignment. If this would introduce an expensive sse unaligned load / store, then unfoldMemoryOperand etc. should not unfold the instruction. llvm-svn: 107509
100 lines
4.6 KiB
LLVM
100 lines
4.6 KiB
LLVM
; RUN: llc < %s -mtriple=x86_64-apple-darwin
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; rdar://8154265
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declare <4 x float> @llvm.x86.sse.max.ss(<4 x float>, <4 x float>) nounwind readnone
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declare <4 x float> @llvm.x86.sse.min.ss(<4 x float>, <4 x float>) nounwind readnone
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define void @_ZN2CA3OGL20fill_surface_mesh_3dERNS0_7ContextEPKNS_6Render13MeshTransformEPKNS0_5LayerEPNS0_7SurfaceEfNS0_13TextureFilterESC_f() nounwind optsize ssp {
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entry:
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br i1 undef, label %bb2.thread, label %bb2
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bb2.thread: ; preds = %entry
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br i1 undef, label %bb41, label %bb10.preheader
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bb2: ; preds = %entry
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unreachable
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bb10.preheader: ; preds = %bb2.thread
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br i1 undef, label %bb9, label %bb12
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bb9: ; preds = %bb9, %bb10.preheader
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br i1 undef, label %bb9, label %bb12
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bb12: ; preds = %bb9, %bb10.preheader
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br i1 undef, label %bb4.i.i, label %bb3.i.i
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bb3.i.i: ; preds = %bb12
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unreachable
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bb4.i.i: ; preds = %bb12
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br i1 undef, label %bb8.i.i, label %_ZN2CA3OGL12_GLOBAL__N_16LightsC1ERNS0_7ContextEPKNS0_5LayerEPKNS_6Render13MeshTransformERKNS_4Vec3IfEESF_.exit
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bb8.i.i: ; preds = %bb4.i.i
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br i1 undef, label %_ZN2CA3OGL12_GLOBAL__N_16LightsC1ERNS0_7ContextEPKNS0_5LayerEPKNS_6Render13MeshTransformERKNS_4Vec3IfEESF_.exit, label %bb9.i.i
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bb9.i.i: ; preds = %bb8.i.i
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br i1 undef, label %bb11.i.i, label %bb10.i.i
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bb10.i.i: ; preds = %bb9.i.i
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unreachable
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bb11.i.i: ; preds = %bb9.i.i
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unreachable
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_ZN2CA3OGL12_GLOBAL__N_16LightsC1ERNS0_7ContextEPKNS0_5LayerEPKNS_6Render13MeshTransformERKNS_4Vec3IfEESF_.exit: ; preds = %bb8.i.i, %bb4.i.i
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br i1 undef, label %bb19, label %bb14
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bb14: ; preds = %_ZN2CA3OGL12_GLOBAL__N_16LightsC1ERNS0_7ContextEPKNS0_5LayerEPKNS_6Render13MeshTransformERKNS_4Vec3IfEESF_.exit
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unreachable
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bb19: ; preds = %_ZN2CA3OGL12_GLOBAL__N_16LightsC1ERNS0_7ContextEPKNS0_5LayerEPKNS_6Render13MeshTransformERKNS_4Vec3IfEESF_.exit
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br i1 undef, label %bb.i50, label %bb6.i
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bb.i50: ; preds = %bb19
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unreachable
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bb6.i: ; preds = %bb19
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br i1 undef, label %bb28, label %bb.nph106
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bb22: ; preds = %bb24.preheader
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br i1 undef, label %bb2.i.i, label %bb.i.i49
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bb.i.i49: ; preds = %bb22
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%0 = load float* undef, align 4 ; <float> [#uses=1]
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%1 = insertelement <4 x float> undef, float %0, i32 0 ; <<4 x float>> [#uses=1]
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%2 = call <4 x float> @llvm.x86.sse.min.ss(<4 x float> <float 1.000000e+00, float undef, float undef, float undef>, <4 x float> %1) nounwind readnone ; <<4 x float>> [#uses=1]
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%3 = call <4 x float> @llvm.x86.sse.max.ss(<4 x float> %2, <4 x float> <float 0.000000e+00, float undef, float undef, float undef>) nounwind readnone ; <<4 x float>> [#uses=1]
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%4 = extractelement <4 x float> %3, i32 0 ; <float> [#uses=1]
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store float %4, float* undef, align 4
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%5 = call <4 x float> @llvm.x86.sse.min.ss(<4 x float> <float 1.000000e+00, float undef, float undef, float undef>, <4 x float> undef) nounwind readnone ; <<4 x float>> [#uses=1]
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%6 = call <4 x float> @llvm.x86.sse.max.ss(<4 x float> %5, <4 x float> <float 0.000000e+00, float undef, float undef, float undef>) nounwind readnone ; <<4 x float>> [#uses=1]
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%7 = extractelement <4 x float> %6, i32 0 ; <float> [#uses=1]
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store float %7, float* undef, align 4
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unreachable
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bb2.i.i: ; preds = %bb22
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unreachable
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bb26.loopexit: ; preds = %bb24.preheader
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br i1 undef, label %bb28, label %bb24.preheader
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bb.nph106: ; preds = %bb6.i
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br label %bb24.preheader
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bb24.preheader: ; preds = %bb.nph106, %bb26.loopexit
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br i1 undef, label %bb22, label %bb26.loopexit
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bb28: ; preds = %bb26.loopexit, %bb6.i
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unreachable
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bb41: ; preds = %bb2.thread
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br i1 undef, label %return, label %bb46
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bb46: ; preds = %bb41
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ret void
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return: ; preds = %bb41
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ret void
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}
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