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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/vec_compare-2.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/vec_compare-2.ll')
| -rw-r--r-- | test/CodeGen/X86/vec_compare-2.ll | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/test/CodeGen/X86/vec_compare-2.ll b/test/CodeGen/X86/vec_compare-2.ll index 946b126fd0..91777f7aa6 100644 --- a/test/CodeGen/X86/vec_compare-2.ll +++ b/test/CodeGen/X86/vec_compare-2.ll @@ -10,8 +10,10 @@ define void @blackDespeckle_wrapper(i8** %args_list, i64* %gtid, i64 %xend) { entry: ; CHECK: cfi_def_cfa_offset ; CHECK-NOT: set -; CHECK: pcmpgt -; CHECK: blendvps +; CHECK: movzwl +; CHECK: movzwl +; CHECK: pshufd +; CHECK: pshufb %shr.i = ashr <4 x i32> zeroinitializer, <i32 3, i32 3, i32 3, i32 3> ; <<4 x i32>> [#uses=1] %cmp318.i = sext <4 x i1> zeroinitializer to <4 x i32> ; <<4 x i32>> [#uses=1] %sub322.i = sub <4 x i32> %shr.i, zeroinitializer ; <<4 x i32>> [#uses=1] |