commit 5d35080f1434d65b3d716e71250bae2a7729af56
author Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Jul 07 20:33:27 2010 +0000
committer Jakob Stoklund Olesen <stoklund@2pi.dk> Wed Jul 07 20:33:27 2010 +0000
tree a8fbf387bf71a69cfc3ca03fbccdce12cb56d692
parent 293e935014bbf09cc188e0528aa724b30cb98bd1

Allow copies between GR8_ABCD_L and GR8_ABCD_H.

This fixes PR7540.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107809 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/X86/X86InstrInfo.cpp

diff --git a/lib/Target/X86/X86InstrInfo.cpp b/lib/Target/X86/X86InstrInfo.cpp
index c1d66cb..91cec98 100644
--- a/lib/Target/X86/X86InstrInfo.cpp
+++ b/lib/Target/X86/X86InstrInfo.cpp
@@ -1913,6 +1913,9 @@
     else if (SrcRC->hasSuperClass(&X86::GR32RegClass) &&
              DestRC->hasSuperClass(&X86::GR32RegClass))
       CommonRC = &X86::GR32RegClass;
+    else if (SrcRC->hasSuperClass(&X86::GR8RegClass) &&
+             DestRC->hasSuperClass(&X86::GR8RegClass))
+      CommonRC = &X86::GR8RegClass;
     else
       CommonRC = 0;
   }