[llvm] r209853 - Added tests for shufflevector lowering to blend instrs.
Filipe Cabecinhas
me at filcab.net
Fri May 30 18:01:41 PDT 2014
Yes, of course. Thanks for pointing that out and thanks for fixing the
semantics.
Committed r209947.
Filipe
On Thu, May 29, 2014 at 5:33 PM, Quentin Colombet <qcolombet at apple.com>
wrote:
> Hi Filipe,
>
> Could you check the actual arguments of the blend instruction in your test
> case?
> I want to make sure we are doing the right lowering.
>
> See r209324 for an example.
>
> Thanks,
> -Quentin
>
> On May 29, 2014, at 3:04 PM, Filipe Cabecinhas <me at filcab.net> wrote:
>
> > Author: filcab
> > Date: Thu May 29 17:04:42 2014
> > New Revision: 209853
> >
> > URL: http://llvm.org/viewvc/llvm-project?rev=209853&view=rev
> > Log:
> > Added tests for shufflevector lowering to blend instrs.
> >
> > These tests ensure that a change I will propose in clang works as
> > expected.
> >
> > Summary:
> > Added tests for the generation of blend+immediate instructions from a
> > shufflevector.
> > These tests were proposed along with a patch that was dropped. I'm
> > committing the tests anyway to protect against possible regressions in
> > codegen.
> >
> > Reviewers: nadav, bkramer
> >
> > Subscribers: llvm-commits
> >
> > Differential Revision: http://reviews.llvm.org/D3600
> >
> > Modified:
> > llvm/trunk/test/CodeGen/X86/avx-blend.ll
> > llvm/trunk/test/CodeGen/X86/avx2-shuffle.ll
> > llvm/trunk/test/CodeGen/X86/sse41-blend.ll
> >
> > Modified: llvm/trunk/test/CodeGen/X86/avx-blend.ll
> > URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx-blend.ll?rev=209853&r1=209852&r2=209853&view=diff
> >
> ==============================================================================
> > --- llvm/trunk/test/CodeGen/X86/avx-blend.ll (original)
> > +++ llvm/trunk/test/CodeGen/X86/avx-blend.ll Thu May 29 17:04:42 2014
> > @@ -158,3 +158,36 @@ define <8 x float> @constant_blendvps_av
> >
> > declare <8 x float> @llvm.x86.avx.blendv.ps.256(<8 x float>, <8 x
> float>, <8 x float>)
> > declare <4 x double> @llvm.x86.avx.blendv.pd.256(<4 x double>, <4 x
> double>, <4 x double>)
> > +
> > +;; 4 tests for shufflevectors that optimize to blend + immediate
> > +; CHECK-LABEL: @blend_shufflevector_4xfloat
> > +define <4 x float> @blend_shufflevector_4xfloat(<4 x float> %a, <4 x
> float> %b) {
> > +; CHECK: vblendps
> > +; CHECK: ret
> > + %1 = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 0,
> i32 5, i32 2, i32 7>
> > + ret <4 x float> %1
> > +}
> > +
> > +; CHECK-LABEL: @blend_shufflevector_8xfloat
> > +define <8 x float> @blend_shufflevector_8xfloat(<8 x float> %a, <8 x
> float> %b) {
> > +; CHECK: vblendps
> > +; CHECK: ret
> > + %1 = shufflevector <8 x float> %a, <8 x float> %b, <8 x i32> <i32 0,
> i32 9, i32 10, i32 11, i32 12, i32 13, i32 6, i32 15>
> > + ret <8 x float> %1
> > +}
> > +
> > +; CHECK-LABEL: @blend_shufflevector_4xdouble
> > +define <4 x double> @blend_shufflevector_4xdouble(<4 x double> %a, <4 x
> double> %b) {
> > +; CHECK: vblendpd
> > +; CHECK: ret
> > + %1 = shufflevector <4 x double> %a, <4 x double> %b, <4 x i32> <i32
> 0, i32 5, i32 2, i32 3>
> > + ret <4 x double> %1
> > +}
> > +
> > +; CHECK-LABEL: @blend_shufflevector_4xi64
> > +define <4 x i64> @blend_shufflevector_4xi64(<4 x i64> %a, <4 x i64> %b)
> {
> > +; CHECK: vblendpd
> > +; CHECK: ret
> > + %1 = shufflevector <4 x i64> %a, <4 x i64> %b, <4 x i32> <i32 4, i32
> 1, i32 6, i32 7>
> > + ret <4 x i64> %1
> > +}
> >
> > Modified: llvm/trunk/test/CodeGen/X86/avx2-shuffle.ll
> > URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx2-shuffle.ll?rev=209853&r1=209852&r2=209853&view=diff
> >
> ==============================================================================
> > --- llvm/trunk/test/CodeGen/X86/avx2-shuffle.ll (original)
> > +++ llvm/trunk/test/CodeGen/X86/avx2-shuffle.ll Thu May 29 17:04:42 2014
> > @@ -60,6 +60,24 @@ define <4 x i64> @blend_test4(<4 x i64>
> > ret <4 x i64> %t
> > }
> >
> > +;; 2 tests for shufflevectors that optimize to blend + immediate
> > +; CHECK-LABEL: @blend_test5
> > +; CHECK: vpblendd
> > +; CHECK: ret
> > +define <4 x i32> @blend_test5(<4 x i32> %a, <4 x i32> %b) {
> > + %1 = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 0, i32
> 5, i32 2, i32 7>
> > + ret <4 x i32> %1
> > +}
> > +
> > +; CHECK-LABEL: @blend_test6
> > +; CHECK: vpblendw
> > +; CHECK: ret
> > +define <16 x i16> @blend_test6(<16 x i16> %a, <16 x i16> %b) {
> > + %1 = shufflevector <16 x i16> %a, <16 x i16> %b, <16 x i32> <i32 0,
> i32 17, i32 18, i32 3, i32 4, i32 5, i32 6, i32 23,
> > + i32 8,
> i32 25, i32 26, i32 11, i32 12, i32 13, i32 14, i32 31>
> > + ret <16 x i16> %1
> > +}
> > +
> > ; CHECK: vpshufhw $27, %ymm
> > define <16 x i16> @vpshufhw(<16 x i16> %src1) nounwind uwtable readnone
> ssp {
> > entry:
> >
> > Modified: llvm/trunk/test/CodeGen/X86/sse41-blend.ll
> > URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/sse41-blend.ll?rev=209853&r1=209852&r2=209853&view=diff
> >
> ==============================================================================
> > --- llvm/trunk/test/CodeGen/X86/sse41-blend.ll (original)
> > +++ llvm/trunk/test/CodeGen/X86/sse41-blend.ll Thu May 29 17:04:42 2014
> > @@ -117,6 +117,24 @@ define <16 x i8> @constant_pblendvb(<16
> > %1 = select <16 x i1> <i1 false, i1 false, i1 true, i1 false, i1 true,
> i1 true, i1 true, i1 false, i1 false, i1 false, i1 true, i1 false, i1 true,
> i1 true, i1 true, i1 false>, <16 x i8> %xyzw, <16 x i8> %abcd
> > ret <16 x i8> %1
> > }
> > +
> > declare <16 x i8> @llvm.x86.sse41.pblendvb(<16 x i8>, <16 x i8>, <16 x
> i8>)
> > declare <4 x float> @llvm.x86.sse41.blendvps(<4 x float>, <4 x float>,
> <4 x float>)
> > declare <2 x double> @llvm.x86.sse41.blendvpd(<2 x double>, <2 x
> double>, <2 x double>)
> > +
> > +;; 2 tests for shufflevectors that optimize to blend + immediate
> > +; CHECK-LABEL: @blend_shufflevector_4xfloat
> > +; CHECK: blendps
> > +; CHECK: ret
> > +define <4 x float> @blend_shufflevector_4xfloat(<4 x float> %a, <4 x
> float> %b) {
> > + %1 = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 0,
> i32 5, i32 6, i32 3>
> > + ret <4 x float> %1
> > +}
> > +
> > +; CHECK-LABEL: @blend_shufflevector_8xi16
> > +; CHECK: pblendw
> > +; CHECK: ret
> > +define <8 x i16> @blend_shufflevector_8xi16(<8 x i16> %a, <8 x i16> %b)
> {
> > + %1 = shufflevector <8 x i16> %a, <8 x i16> %b, <8 x i32> <i32 0, i32
> 9, i32 10, i32 3, i32 4, i32 5, i32 6, i32 15>
> > + ret <8 x i16> %1
> > +}
> >
> >
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> > llvm-commits at cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>
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