[llvm-commits] [llvm] r104524 - /llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp

[Devang Patel]

Author: dpatel
Date: Mon May 24 13:26:49 2010
New Revision: 104524

URL: http://llvm.org/viewvc/llvm-project?rev=104524&view=rev
Log:
Do not emit line number entries for unknown debug values.
This fixes recent regression in store.exp from gdb testsuite.

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=104524&r1=104523&r2=104524&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Mon May 24 13:26:49 2010
@@ -2195,6 +2195,9 @@
     if (!DV.Verify()) return;
     if (DV.getTag() != dwarf::DW_TAG_arg_variable)
       LocalVar = true;
+    // Ignore Undef values.
+    if (MI->getOperand(0).isReg() && !MI->getOperand(0).getReg())
+      LocalVar = false;
   }
 
   MCSymbol *Label = NULL;