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b2ed5fac06
Optimize CONCAT_VECTOR nodes that merge EXTRACT_SUBVECTOR values that extract from the same vector. rdar://13402653 PR15866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180871 91177308-0d34-0410-b5e6-96231b3b80d8
14 lines
569 B
LLVM
14 lines
569 B
LLVM
; RUN: llc < %s -mtriple=armv7-apple-darwin | FileCheck %s
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;CHECK: _foo
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;CHECK-NOT: vld1.32
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;CHECK-NOT: vst1.32
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;CHECK: bx
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define void @foo(<16 x i8>* %J) {
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%A = load <16 x i8>* %J
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%T1 = shufflevector <16 x i8> %A, <16 x i8> undef, <8 x i32> <i32 8, i32 9, i32 10, i32 11, i32 12, i32 13, i32 14, i32 15>
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%T2 = shufflevector <8 x i8> %T1, <8 x i8> undef, <16 x i32> <i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 undef, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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store <16 x i8> %T2, <16 x i8>* %J
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ret void
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}
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