commit 1f6a3c820a997fd3c4c08dedff6706f5e045e42d
author Evan Cheng <evan.cheng@apple.com> Fri Nov 13 23:16:41 2009 +0000
committer Evan Cheng <evan.cheng@apple.com> Fri Nov 13 23:16:41 2009 +0000
tree ce08ff3dbbd490f5645f8f3fef2a926edb48d2c4
parent 2b1ffeea2889e83b2765eacaadd668de8b03f643

Fix PR5411. Bug in UpdateKills. A reg def partially define its super-registers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88719 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/VirtRegRewriter.cpp

diff --git a/lib/CodeGen/VirtRegRewriter.cpp b/lib/CodeGen/VirtRegRewriter.cpp
index e357214..dcd2a75 100644
--- a/lib/CodeGen/VirtRegRewriter.cpp
+++ b/lib/CodeGen/VirtRegRewriter.cpp
@@ -583,6 +583,10 @@
       RegKills.reset(*SR);
       KillOps[*SR] = NULL;
     }
+    for (const unsigned *SR = TRI->getSuperRegisters(Reg); *SR; ++SR) {
+      RegKills.reset(*SR);
+      KillOps[*SR] = NULL;
+    }
   }
 }