[llvm-commits] [llvm] r132433 - /llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp

[Devang Patel]

Author: dpatel
Date: Wed Jun  1 18:00:17 2011
New Revision: 132433

URL: http://llvm.org/viewvc/llvm-project?rev=132433&view=rev
Log:
A DBG_VALUE that truncates a range does not start another dbg value range.

Modified:
    llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp

Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=132433&r1=132432&r2=132433&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Wed Jun  1 18:00:17 2011
@@ -1411,6 +1411,11 @@
       const MachineInstr *Begin = *HI;
       assert(Begin->isDebugValue() && "Invalid History entry");
 
+      // Check if DBG_VALUE is truncating a range.
+      if (Begin->getNumOperands() > 1 && Begin->getOperand(0).isReg()
+          && !Begin->getOperand(0).getReg())
+        continue;
+
       // Compute the range for a register location.
       const MCSymbol *FLabel = getLabelBeforeInsn(Begin);
       const MCSymbol *SLabel = 0;