diff options
author | Nate Begeman <natebegeman@mac.com> | 2009-04-24 03:42:54 +0000 |
---|---|---|
committer | Nate Begeman <natebegeman@mac.com> | 2009-04-24 03:42:54 +0000 |
commit | b706d29f9c5ed3ed9acc82f7ab46205ba56b92dc (patch) | |
tree | 105e75ce0dc135a208ef085ba4f70fe162031ff1 /test/CodeGen/X86/vec_shuffle-30.ll | |
parent | 98d07102d67971118c73e7db84d8a05d58dcf3df (diff) | |
download | llvm-b706d29f9c5ed3ed9acc82f7ab46205ba56b92dc.tar.gz llvm-b706d29f9c5ed3ed9acc82f7ab46205ba56b92dc.tar.bz2 llvm-b706d29f9c5ed3ed9acc82f7ab46205ba56b92dc.tar.xz |
PR2957
ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle
mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes
as the shuffle mask. A value of -1 represents UNDEF.
In addition to eliminating the creation of illegal BUILD_VECTORS just to
represent shuffle masks, we are better about canonicalizing the shuffle mask,
resulting in substantially better code for some classes of shuffles.
A clean up of x86 shuffle code, and some canonicalizing in DAGCombiner is next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69952 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/vec_shuffle-30.ll')
-rw-r--r-- | test/CodeGen/X86/vec_shuffle-30.ll | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/test/CodeGen/X86/vec_shuffle-30.ll b/test/CodeGen/X86/vec_shuffle-30.ll index 38f02fe238..50a3df8f0b 100644 --- a/test/CodeGen/X86/vec_shuffle-30.ll +++ b/test/CodeGen/X86/vec_shuffle-30.ll @@ -1,8 +1,7 @@ ; RUN: llvm-as < %s | llc -march=x86 -mattr=sse41 -disable-mmx -o %t -f ; RUN: grep pshufhw %t | grep 161 | count 1 -; RUN: grep pslldq %t | count 1 - - +; RUN: grep shufps %t | count 1 +; RUN: not grep pslldq %t ; Test case when creating pshufhw, we incorrectly set the higher order bit ; for an undef, @@ -20,4 +19,4 @@ entry: %0 = shufflevector <4 x i32> %in, <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32> < i32 undef, i32 5, i32 undef, i32 2> store <4 x i32> %0, <4 x i32>* %dest ret void -}
\ No newline at end of file +} |