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eee3b225d9
Patch to match cases where shuffle masks can be reduced to bit shifts. Similar to byte shift shuffle matching from D5699. Differential Revision: http://reviews.llvm.org/D6649 llvm-svn: 228047
107 lines
4.3 KiB
LLVM
107 lines
4.3 KiB
LLVM
; RUN: llc < %s -march=x86 -mattr=+sse2,+ssse3 | FileCheck %s
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; There are no MMX operations in @t1
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define void @t1(i32 %a, x86_mmx* %P) nounwind {
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; CHECK-LABEL: t1:
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; CHECK: # BB#0:
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; CHECK-NEXT: shll $12, %ecx
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; CHECK-NEXT: movd %ecx, %xmm0
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; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,0,0,1]
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; CHECK-NEXT: movlpd %xmm0, (%eax)
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; CHECK-NEXT: retl
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%tmp12 = shl i32 %a, 12
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%tmp21 = insertelement <2 x i32> undef, i32 %tmp12, i32 1
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%tmp22 = insertelement <2 x i32> %tmp21, i32 0, i32 0
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%tmp23 = bitcast <2 x i32> %tmp22 to x86_mmx
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store x86_mmx %tmp23, x86_mmx* %P
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ret void
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}
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define <4 x float> @t2(<4 x float>* %P) nounwind {
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; CHECK-LABEL: t2:
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; CHECK: # BB#0:
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
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; CHECK-NEXT: movaps (%eax), %xmm1
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; CHECK-NEXT: xorps %xmm0, %xmm0
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; CHECK-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,0],xmm0[0,0]
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,0],xmm1[2,0]
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; CHECK-NEXT: retl
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%tmp1 = load <4 x float>* %P
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%tmp2 = shufflevector <4 x float> %tmp1, <4 x float> zeroinitializer, <4 x i32> < i32 4, i32 4, i32 4, i32 0 >
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ret <4 x float> %tmp2
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}
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define <4 x float> @t3(<4 x float>* %P) nounwind {
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; CHECK-LABEL: t3:
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; CHECK: # BB#0:
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
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; CHECK-NEXT: movaps (%eax), %xmm0
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; CHECK-NEXT: xorps %xmm1, %xmm1
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[2,3],xmm1[0,0]
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; CHECK-NEXT: retl
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%tmp1 = load <4 x float>* %P
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%tmp2 = shufflevector <4 x float> %tmp1, <4 x float> zeroinitializer, <4 x i32> < i32 2, i32 3, i32 4, i32 4 >
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ret <4 x float> %tmp2
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}
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define <4 x float> @t4(<4 x float>* %P) nounwind {
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; CHECK-LABEL: t4:
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; CHECK: # BB#0:
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; CHECK-NEXT: movl {{[0-9]+}}(%esp), %eax
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; CHECK-NEXT: movaps (%eax), %xmm0
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; CHECK-NEXT: xorps %xmm1, %xmm1
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[3,0],xmm1[0,0]
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; CHECK-NEXT: shufps {{.*#+}} xmm0 = xmm0[0,2],xmm1[0,0]
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; CHECK-NEXT: retl
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%tmp1 = load <4 x float>* %P
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%tmp2 = shufflevector <4 x float> zeroinitializer, <4 x float> %tmp1, <4 x i32> < i32 7, i32 0, i32 0, i32 0 >
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ret <4 x float> %tmp2
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}
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define <16 x i8> @t5(<16 x i8> %x) nounwind {
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; CHECK-LABEL: t5:
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; CHECK: # BB#0:
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; CHECK-NEXT: psrlw $8, %xmm0
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; CHECK-NEXT: retl
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%s = shufflevector <16 x i8> %x, <16 x i8> zeroinitializer, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 17>
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ret <16 x i8> %s
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}
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define <16 x i8> @t6(<16 x i8> %x) nounwind {
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; CHECK-LABEL: t6:
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; CHECK: # BB#0:
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; CHECK-NEXT: psrlw $8, %xmm0
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; CHECK-NEXT: retl
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%s = shufflevector <16 x i8> %x, <16 x i8> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef>
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ret <16 x i8> %s
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}
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define <16 x i8> @t7(<16 x i8> %x) nounwind {
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; CHECK-LABEL: t7:
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; CHECK: # BB#0:
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; CHECK-NEXT: pslldq {{.*#+}} xmm0 = zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,xmm0[0,1,2]
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; CHECK-NEXT: retl
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%s = shufflevector <16 x i8> %x, <16 x i8> undef, <16 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 1, i32 2>
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ret <16 x i8> %s
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}
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define <16 x i8> @t8(<16 x i8> %x) nounwind {
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; CHECK-LABEL: t8:
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; CHECK: # BB#0:
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; CHECK-NEXT: psrldq {{.*#+}} xmm0 = xmm0[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15],zero
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; CHECK-NEXT: retl
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%s = shufflevector <16 x i8> %x, <16 x i8> zeroinitializer, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 8, i32 9, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 17>
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ret <16 x i8> %s
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}
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define <16 x i8> @t9(<16 x i8> %x) nounwind {
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; CHECK-LABEL: t9:
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; CHECK: # BB#0:
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; CHECK-NEXT: psrldq {{.*#+}} xmm0 = xmm0[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15],zero
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; CHECK-NEXT: retl
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%s = shufflevector <16 x i8> %x, <16 x i8> undef, <16 x i32> <i32 1, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 7, i32 8, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 14, i32 undef, i32 undef>
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ret <16 x i8> %s
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}
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