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| author | Nadav Rotem <nadav.rotem@intel.com> | 2012-04-07 21:19:08 +0000 |
|---|---|---|
| committer | Nadav Rotem <nadav.rotem@intel.com> | 2012-04-07 21:19:08 +0000 |
| commit | d16c8d0d336638225378466bc17c9db156401817 (patch) | |
| tree | a9afe1da5eb726f19fb7b331444edfdceffd9482 /test/CodeGen/X86/2011-10-27-tstore.ll | |
| parent | 961d666be4f3714452ff9f15470f9255d85f0506 (diff) | |
| download | llvm-d16c8d0d336638225378466bc17c9db156401817.tar.gz llvm-d16c8d0d336638225378466bc17c9db156401817.tar.bz2 llvm-d16c8d0d336638225378466bc17c9db156401817.tar.xz | |
1. Remove the part of r153848 which optimizes shuffle-of-shuffle into a new
shuffle node because it could introduce new shuffle nodes that were not
supported efficiently by the target.
2. Add a more restrictive shuffle-of-shuffle optimization for cases where the
second shuffle reverses the transformation of the first shuffle.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154266 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/2011-10-27-tstore.ll')
| -rw-r--r-- | test/CodeGen/X86/2011-10-27-tstore.ll | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/test/CodeGen/X86/2011-10-27-tstore.ll b/test/CodeGen/X86/2011-10-27-tstore.ll index 1712f34565..6e83f6713a 100644 --- a/test/CodeGen/X86/2011-10-27-tstore.ll +++ b/test/CodeGen/X86/2011-10-27-tstore.ll @@ -4,13 +4,13 @@ target triple = "x86_64-unknown-linux-gnu" ;CHECK: ltstore ;CHECK: movq -;CHECK-NEXT: movq -;CHECK-NEXT: ret -define void @ltstore(<4 x i32>* %pIn, <2 x i32>* %pOut) { +;CHECK: movq +;CHECK: ret +define void @ltstore(<4 x i32>* %pA, <2 x i32>* %pB) { entry: - %in = load <4 x i32>* %pIn + %in = load <4 x i32>* %pA %j = shufflevector <4 x i32> %in, <4 x i32> undef, <2 x i32> <i32 0, i32 1> - store <2 x i32> %j, <2 x i32>* %pOut + store <2 x i32> %j, <2 x i32>* %pB ret void } |