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| author | Devang Patel <dpatel@apple.com> | 2010-05-24 18:26:49 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2010-05-24 18:26:49 +0000 |
| commit | 295cdf8b8293f31953bad9a4a9c0586e934181c6 (patch) | |
| tree | 6b3bf3e1c5a8b9e0b9f0eeb61a63d81923c4304b /lib/CodeGen/AsmPrinter/DwarfDebug.cpp | |
| parent | c7cf10c97ef08dc3dbe917e16908cc9bd3d888e6 (diff) | |
Do not emit line number entries for unknown debug values.
This fixes recent regression in store.exp from gdb testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104524 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 9af5256af0..145bf718f9 100644 --- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -2195,6 +2195,9 @@ void DwarfDebug::beginScope(const MachineInstr *MI) { 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; |