[llvm-commits] [llvm] r41024 - /llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp

[Evan Cheng]

Author: evancheng
Date: Sat Aug 11 20:26:19 2007
New Revision: 41024

URL: http://llvm.org/viewvc/llvm-project?rev=41024&view=rev
Log:
No need to remove dead range from soon-to-be-dead live interval. Its val# may be out of whack.

Modified:
    llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp

Modified: llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp?rev=41024&r1=41023&r2=41024&view=diff

==============================================================================
--- llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp (original)
+++ llvm/trunk/lib/CodeGen/SimpleRegisterCoalescing.cpp Sat Aug 11 20:26:19 2007
@@ -316,9 +316,9 @@
     }
 
     if (isShorten || isDead) {
-      // Shorten the live interval.
-      LiveInterval &LiveInInt = (repSrcReg == DstInt.reg) ? DstInt : SrcInt;
-      LiveInInt.removeRange(RemoveStart, RemoveEnd);
+      // Shorten the destination live interval.
+      if (repSrcReg == DstInt.reg)
+        DstInt.removeRange(RemoveStart, RemoveEnd);
     }
   } else {
     // Coalescing failed.