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| author | Dale Johannesen <dalej@apple.com> | 2010-01-27 22:11:16 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2010-01-27 22:11:16 +0000 |
| commit | 714eb731b2df6b4eb5221e76297d4c691ab91b3e (patch) | |
| tree | ba4071f06c11684a2584ae49a2fe58a2406cd0eb /lib/Target/X86/AsmPrinter | |
| parent | 16abe7d5b5167d4a16937e1bf41a0af6d12c21db (diff) | |
| download | external_llvm-714eb731b2df6b4eb5221e76297d4c691ab91b3e.zip external_llvm-714eb731b2df6b4eb5221e76297d4c691ab91b3e.tar.gz external_llvm-714eb731b2df6b4eb5221e76297d4c691ab91b3e.tar.bz2 | |
Treat MO_REG 0 location as undefined in DEBUG_VALUE,
per document.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94693 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/AsmPrinter')
| -rw-r--r-- | lib/Target/X86/AsmPrinter/X86MCInstLower.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp b/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp index b6a3581..9fb6ca4 100644 --- a/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp +++ b/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp @@ -428,10 +428,16 @@ void X86AsmPrinter::printInstructionThroughMCStreamer(const MachineInstr *MI) { O << V.getName(); O << " <- "; if (NOps==3) { - // Register or immediate value + // Register or immediate value. Register 0 means undef. assert(MI->getOperand(0).getType()==MachineOperand::MO_Register || MI->getOperand(0).getType()==MachineOperand::MO_Immediate); - printOperand(MI, 0); + if (MI->getOperand(0).getType()==MachineOperand::MO_Register && + MI->getOperand(0).getReg()==0) { + // Suppress offset in this case, it is not meaningful. + O << "undef"; + return; + } else + printOperand(MI, 0); } else { // Frame address. Currently handles register +- offset only. assert(MI->getOperand(0).getType()==MachineOperand::MO_Register); |