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b6ac451381
Over the entire test-suite, this has an insignificantly negative average performance impact, but reduces some of the worst slowdowns from the anti-dep. change (r158294). Largest speedups: SingleSource/Benchmarks/Stanford/Quicksort - 28% SingleSource/Benchmarks/Stanford/Towers - 24% SingleSource/Benchmarks/Shootout-C++/matrix - 23% MultiSource/Benchmarks/SciMark2-C/scimark2 - 19% MultiSource/Benchmarks/MiBench/automotive-bitcount/automotive-bitcount - 15% (matrix and automotive-bitcount were both in the top-5 slowdown list from the anti-dep. change) Largest slowdowns: MultiSource/Benchmarks/McCat/03-testtrie/testtrie - 28% MultiSource/Benchmarks/mediabench/gsm/toast/toast - 26% MultiSource/Benchmarks/MiBench/automotive-susan/automotive-susan - 21% SingleSource/Benchmarks/CoyoteBench/lpbench - 20% MultiSource/Applications/d/make_dparser - 16% llvm-svn: 158296
38 lines
2.3 KiB
LLVM
38 lines
2.3 KiB
LLVM
; RUN: llc < %s -march=ppc32 -mtriple=powerpc-apple-darwin -mattr=+altivec -disable-ppc-ilp-pref | FileCheck %s
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; Formerly this did byte loads and word stores.
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@a = external global <16 x i8>
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@b = external global <16 x i8>
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@c = external global <16 x i8>
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define void @foo() nounwind ssp {
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; CHECK: _foo:
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; CHECK-NOT: stw
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entry:
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%tmp0 = load <16 x i8>* @a, align 16
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%tmp180.i = extractelement <16 x i8> %tmp0, i32 0 ; <i8> [#uses=1]
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%tmp181.i = insertelement <16 x i8> <i8 0, i8 0, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef, i8 undef>, i8 %tmp180.i, i32 2 ; <<16 x i8>> [#uses=1]
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%tmp182.i = extractelement <16 x i8> %tmp0, i32 1 ; <i8> [#uses=1]
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%tmp183.i = insertelement <16 x i8> %tmp181.i, i8 %tmp182.i, i32 3 ; <<16 x i8>> [#uses=1]
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%tmp184.i = insertelement <16 x i8> %tmp183.i, i8 0, i32 4 ; <<16 x i8>> [#uses=1]
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%tmp185.i = insertelement <16 x i8> %tmp184.i, i8 0, i32 5 ; <<16 x i8>> [#uses=1]
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%tmp186.i = extractelement <16 x i8> %tmp0, i32 4 ; <i8> [#uses=1]
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%tmp187.i = insertelement <16 x i8> %tmp185.i, i8 %tmp186.i, i32 6 ; <<16 x i8>> [#uses=1]
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%tmp188.i = extractelement <16 x i8> %tmp0, i32 5 ; <i8> [#uses=1]
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%tmp189.i = insertelement <16 x i8> %tmp187.i, i8 %tmp188.i, i32 7 ; <<16 x i8>> [#uses=1]
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%tmp190.i = insertelement <16 x i8> %tmp189.i, i8 0, i32 8 ; <<16 x i8>> [#uses=1]
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%tmp191.i = insertelement <16 x i8> %tmp190.i, i8 0, i32 9 ; <<16 x i8>> [#uses=1]
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%tmp192.i = extractelement <16 x i8> %tmp0, i32 8 ; <i8> [#uses=1]
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%tmp193.i = insertelement <16 x i8> %tmp191.i, i8 %tmp192.i, i32 10 ; <<16 x i8>> [#uses=1]
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%tmp194.i = extractelement <16 x i8> %tmp0, i32 9 ; <i8> [#uses=1]
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%tmp195.i = insertelement <16 x i8> %tmp193.i, i8 %tmp194.i, i32 11 ; <<16 x i8>> [#uses=1]
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%tmp196.i = insertelement <16 x i8> %tmp195.i, i8 0, i32 12 ; <<16 x i8>> [#uses=1]
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%tmp197.i = insertelement <16 x i8> %tmp196.i, i8 0, i32 13 ; <<16 x i8>> [#uses=1]
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%tmp201 = shufflevector <16 x i8> %tmp197.i, <16 x i8> %tmp0, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 28, i32 29>; ModuleID = 'try.c'
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store <16 x i8> %tmp201, <16 x i8>* @c, align 16
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br label %return
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return: ; preds = %bb2
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ret void
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; CHECK: blr
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}
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