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https://github.com/c64scene-ar/llvm-6502.git
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a6943fff90
This patch builds on http://reviews.llvm.org/D5598 to perform byte rotation shuffles (lowerVectorShuffleAsByteRotate) on pre-SSSE3 (palignr) targets - pre-SSSE3 is only enabled on i8 and i16 vector targets where it is a more definite performance gain. I've also added a separate byte shift shuffle (lowerVectorShuffleAsByteShift) that makes use of the ability of the SLLDQ/SRLDQ instructions to implicitly shift in zero bytes to avoid the need to create a zero register if we had used palignr. Differential Revision: http://reviews.llvm.org/D5699 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222340 91177308-0d34-0410-b5e6-96231b3b80d8
154 lines
6.0 KiB
LLVM
154 lines
6.0 KiB
LLVM
; RUN: llc < %s -march=x86 -mcpu=core2 -mattr=+ssse3 | FileCheck %s
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; RUN: llc < %s -march=x86 -mcpu=yonah | FileCheck --check-prefix=CHECK-YONAH %s
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define <4 x i32> @test1(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK-LABEL: test1:
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; CHECK: # BB#0:
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; CHECK-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,2,3,0]
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test1:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,2,3,0]
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <4 x i32> %A, <4 x i32> undef, <4 x i32> < i32 1, i32 2, i32 3, i32 0 >
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ret <4 x i32> %C
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}
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define <4 x i32> @test2(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK-LABEL: test2:
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; CHECK: # BB#0:
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; CHECK-NEXT: palignr {{.*#+}} xmm1 = xmm0[4,5,6,7,8,9,10,11,12,13,14,15],xmm1[0,1,2,3]
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; CHECK-NEXT: movdqa %xmm1, %xmm0
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test2:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: shufps {{.*#+}} xmm1 = xmm1[0,0],xmm0[3,0]
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; CHECK-YONAH-NEXT: shufps {{.*#+}} xmm0 = xmm0[1,2],xmm1[2,0]
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <4 x i32> %A, <4 x i32> %B, <4 x i32> < i32 1, i32 2, i32 3, i32 4 >
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ret <4 x i32> %C
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}
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define <4 x i32> @test3(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK-LABEL: test3:
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; CHECK: # BB#0:
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; CHECK-NEXT: palignr {{.*#+}} xmm1 = xmm0[4,5,6,7,8,9,10,11,12,13,14,15],xmm1[0,1,2,3]
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; CHECK-NEXT: movdqa %xmm1, %xmm0
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test3:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: shufps {{.*#+}} xmm0 = xmm0[1,2],xmm1[2,0]
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <4 x i32> %A, <4 x i32> %B, <4 x i32> < i32 1, i32 2, i32 undef, i32 4 >
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ret <4 x i32> %C
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}
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define <4 x i32> @test4(<4 x i32> %A, <4 x i32> %B) nounwind {
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; CHECK-LABEL: test4:
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; CHECK: # BB#0:
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; CHECK-NEXT: palignr {{.*#+}} xmm0 = xmm1[8,9,10,11,12,13,14,15],xmm0[0,1,2,3,4,5,6,7]
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test4:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: shufpd {{.*#+}} xmm1 = xmm1[1],xmm0[0]
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; CHECK-YONAH-NEXT: movapd %xmm1, %xmm0
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <4 x i32> %A, <4 x i32> %B, <4 x i32> < i32 6, i32 7, i32 undef, i32 1 >
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ret <4 x i32> %C
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}
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define <4 x float> @test5(<4 x float> %A, <4 x float> %B) nounwind {
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; CHECK-LABEL: test5:
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; CHECK: # BB#0:
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; CHECK-NEXT: shufpd {{.*#+}} xmm1 = xmm1[1],xmm0[0]
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test5:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: shufpd {{.*#+}} xmm1 = xmm1[1],xmm0[0]
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; CHECK-YONAH-NEXT: movapd %xmm1, %xmm0
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <4 x float> %A, <4 x float> %B, <4 x i32> < i32 6, i32 7, i32 undef, i32 1 >
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ret <4 x float> %C
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}
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define <8 x i16> @test6(<8 x i16> %A, <8 x i16> %B) nounwind {
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; CHECK-LABEL: test6:
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; CHECK: # BB#0:
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; CHECK-NEXT: palignr {{.*#+}} xmm1 = xmm0[6,7,8,9,10,11,12,13,14,15],xmm1[0,1,2,3,4,5]
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; CHECK-NEXT: movdqa %xmm1, %xmm0
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test6:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: psrldq {{.*#+}} xmm0 = xmm0[6,7,8,9,10,11,12,13,14,15],zero,zero,zero,zero,zero,zero
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; CHECK-YONAH-NEXT: pslldq {{.*#+}} xmm1 = zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,xmm1[0,1,2,3,4,5]
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; CHECK-YONAH-NEXT: por %xmm1, %xmm0
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <8 x i16> %A, <8 x i16> %B, <8 x i32> < i32 3, i32 4, i32 undef, i32 6, i32 7, i32 8, i32 9, i32 10 >
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ret <8 x i16> %C
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}
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define <8 x i16> @test7(<8 x i16> %A, <8 x i16> %B) nounwind {
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; CHECK-LABEL: test7:
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; CHECK: # BB#0:
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; CHECK-NEXT: palignr {{.*#+}} xmm1 = xmm0[10,11,12,13,14,15],xmm1[0,1,2,3,4,5,6,7,8,9]
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; CHECK-NEXT: movdqa %xmm1, %xmm0
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test7:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: psrldq {{.*#+}} xmm0 = xmm0[10,11,12,13,14,15],zero,zero,zero,zero,zero,zero,zero,zero,zero,zero
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; CHECK-YONAH-NEXT: pslldq {{.*#+}} xmm1 = zero,zero,zero,zero,zero,zero,xmm1[0,1,2,3,4,5,6,7,8,9]
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; CHECK-YONAH-NEXT: por %xmm1, %xmm0
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <8 x i16> %A, <8 x i16> %B, <8 x i32> < i32 undef, i32 6, i32 undef, i32 8, i32 9, i32 10, i32 11, i32 12 >
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ret <8 x i16> %C
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}
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define <16 x i8> @test8(<16 x i8> %A, <16 x i8> %B) nounwind {
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; CHECK-LABEL: test8:
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; CHECK: # BB#0:
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; CHECK-NEXT: palignr {{.*#+}} xmm1 = xmm0[5,6,7,8,9,10,11,12,13,14,15],xmm1[0,1,2,3,4]
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; CHECK-NEXT: movdqa %xmm1, %xmm0
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test8:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: psrldq {{.*#+}} xmm0 = xmm0[5,6,7,8,9,10,11,12,13,14,15],zero,zero,zero,zero,zero
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; CHECK-YONAH-NEXT: pslldq {{.*#+}} xmm1 = zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,xmm1[0,1,2,3,4]
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; CHECK-YONAH-NEXT: por %xmm1, %xmm0
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <16 x i8> %A, <16 x i8> %B, <16 x i32> < i32 5, i32 6, i32 7, i32 undef, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15, i32 16, i32 17, i32 18, i32 19, i32 20 >
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ret <16 x i8> %C
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}
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; Check that we don't do unary (circular on single operand) palignr incorrectly.
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; (It is possible, but before this testcase was committed, it was being done
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; incorrectly. In particular, one of the operands of the palignr node
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; was an UNDEF.)
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define <8 x i16> @test9(<8 x i16> %A, <8 x i16> %B) nounwind {
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; CHECK-LABEL: test9:
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; CHECK: # BB#0:
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; CHECK-NEXT: palignr {{.*#+}} xmm1 = xmm1[2,3,4,5,6,7,8,9,10,11,12,13,14,15,0,1]
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; CHECK-NEXT: movdqa %xmm1, %xmm0
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; CHECK-NEXT: retl
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;
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; CHECK-YONAH-LABEL: test9:
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; CHECK-YONAH: # BB#0:
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; CHECK-YONAH-NEXT: movdqa %xmm1, %xmm0
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; CHECK-YONAH-NEXT: psrldq {{.*#+}} xmm0 = xmm0[2,3,4,5,6,7,8,9,10,11,12,13,14,15],zero,zero
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; CHECK-YONAH-NEXT: pslldq {{.*#+}} xmm1 = zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,xmm1[0,1]
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; CHECK-YONAH-NEXT: por %xmm0, %xmm1
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; CHECK-YONAH-NEXT: movdqa %xmm1, %xmm0
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; CHECK-YONAH-NEXT: retl
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%C = shufflevector <8 x i16> %B, <8 x i16> %A, <8 x i32> < i32 undef, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 0 >
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ret <8 x i16> %C
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}
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