diff options
| author | Devang Patel <dpatel@apple.com> | 2010-12-06 22:48:22 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2010-12-06 22:48:22 +0000 |
| commit | b7313e274c0b26879b45023a85a3c8a4b5ac5c92 (patch) | |
| tree | 0ef7756cf09006c9c001251fac0a82d8b1ba2359 /lib/CodeGen/AsmPrinter/DwarfDebug.cpp | |
| parent | afeaae7a940ce16e7874af31f3e5e91d8ca89e19 (diff) | |
Undefined value in reg 0 may need a marker to identify end of source range.
This will be used to truncate live range of DBG_VALUE instruction by register allocator and friends.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121061 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index f2c7238f5f..f43055054e 100644 --- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -2783,16 +2783,14 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) { DIVariable DV(MI->getOperand(MI->getNumOperands() - 1).getMetadata()); if (!DV.Verify()) continue; // If DBG_VALUE is for a local variable then it needs a label. - if (DV.getTag() != dwarf::DW_TAG_arg_variable - && isDbgValueInUndefinedReg(MI) == false) + if (DV.getTag() != dwarf::DW_TAG_arg_variable) InsnNeedsLabel.insert(MI); // DBG_VALUE for inlined functions argument needs a label. else if (!DISubprogram(getDISubprogram(DV.getContext())). describes(MF->getFunction())) InsnNeedsLabel.insert(MI); // DBG_VALUE indicating argument location change needs a label. - else if (isDbgValueInUndefinedReg(MI) == false - && !ProcessedArgs.insert(DV)) + else if (!ProcessedArgs.insert(DV)) InsnNeedsLabel.insert(MI); } else { // If location is unknown then instruction needs a location only if |