commit 92ee68249440edb5f0c58cda49dd0f09a7e165b0
author Evan Cheng <evan.cheng@apple.com> Sat May 10 06:46:49 2008 +0000
committer Evan Cheng <evan.cheng@apple.com> Sat May 10 06:46:49 2008 +0000
tree 585588fc20e9d2ac38229aa6f7c15d97216a31d0
parent 2c67d0d140028443b40ed5b3dc417e766fa7dd0d

When transforming a vector_shuffle to a load, the base address must not be an undef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50940 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86ISelLowering.cpp

diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index d2d7667..307aeae 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -6283,6 +6283,8 @@
       return false;
     if (!Base) {
       Base = Elt.Val;
+      if (Base->getOpcode() == ISD::UNDEF)
+        return false;
       continue;
     }
     if (Elt.getOpcode() == ISD::UNDEF)