From 8559932d36eff4a83c154ea52964c462112a56e7 Mon Sep 17 00:00:00 2001 From: Devang Patel Date: Tue, 31 Aug 2010 18:50:09 +0000 Subject: Remember byval argument's frame index during argument lowering and use this info to emit debug info. Fixes Radar 8367011. llvm-svn: 112623 --- llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp') diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index eaa12d4e0c0..eeae8a33f42 100644 --- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -1629,9 +1629,16 @@ DIE *DwarfDebug::constructVariableDIE(DbgVariable *DV, DbgScope *Scope) { bool updated = false; // FIXME : Handle getNumOperands != 3 if (DVInsn->getNumOperands() == 3) { - if (DVInsn->getOperand(0).isReg()) - updated = - addRegisterAddress(VariableDie, DVLabel, DVInsn->getOperand(0)); + if (DVInsn->getOperand(0).isReg()) { + const MachineOperand RegOp = DVInsn->getOperand(0); + const TargetRegisterInfo *TRI = Asm->TM.getRegisterInfo(); + if (DVInsn->getOperand(1).isImm() && + TRI->getFrameRegister(*Asm->MF) == RegOp.getReg()) { + addVariableAddress(DV, VariableDie, DVInsn->getOperand(1).getImm()); + updated = true; + } else + updated = addRegisterAddress(VariableDie, DVLabel, RegOp); + } else if (DVInsn->getOperand(0).isImm()) updated = addConstantValue(VariableDie, DVLabel, DVInsn->getOperand(0)); else if (DVInsn->getOperand(0).isFPImm()) -- cgit v1.2.3