From b706d29f9c5ed3ed9acc82f7ab46205ba56b92dc Mon Sep 17 00:00:00 2001 From: Nate Begeman Date: Fri, 24 Apr 2009 03:42:54 +0000 Subject: 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 --- test/CodeGen/X86/vec_shuffle-30.ll | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'test/CodeGen/X86/vec_shuffle-30.ll') 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> , <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 +} -- cgit v1.2.3