commit fc5c164b753c9ca42901514c645c70e5b61c5c11
author Christopher Lamb <christopher.lamb@gmail.com> Wed Mar 19 08:30:06 2008 +0000
committer Christopher Lamb <christopher.lamb@gmail.com> Wed Mar 19 08:30:06 2008 +0000
tree 323a51a31cb8a7c4e37df464dd13c8708c085f7b
parent 9792837e758478bbdc7e1df3d1f1d304eee59011

Fix X86's isTruncateFree to not claim that truncate to i1 is free. This fixes Bill's testcase that failed for r48491.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48542 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 5a05aba..93fb802 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -5662,7 +5662,7 @@
     return false;
   unsigned NumBits1 = Ty1->getPrimitiveSizeInBits();
   unsigned NumBits2 = Ty2->getPrimitiveSizeInBits();
-  if (NumBits1 <= NumBits2)
+  if (NumBits1 <= NumBits2 || NumBits2 < 8)
     return false;
   return Subtarget->is64Bit() || NumBits1 < 64;
 }
@@ -5673,7 +5673,7 @@
     return false;
   unsigned NumBits1 = MVT::getSizeInBits(VT1);
   unsigned NumBits2 = MVT::getSizeInBits(VT2);
-  if (NumBits1 <= NumBits2)
+  if (NumBits1 <= NumBits2 || NumBits2 < 8)
     return false;
   return Subtarget->is64Bit() || NumBits1 < 64;
 }