search for: previnstloc

Displaying 3 results from an estimated 3 matches for "previnstloc".

2016 Aug 17
2
CodeView and "line 0" ?
...beginInstruction(const MachineInstr *MI) { DebugHandlerBase::beginInstruction(MI); // Ignore DBG_VALUE locations and function prologue. if (!Asm || !CurFn || MI->isDebugValue() || MI->getFlag(MachineInstr::FrameSetup)) return; DebugLoc DL = MI->getDebugLoc(); if (DL == PrevInstLoc || !DL) return; maybeRecordLocation(DL, Asm->MF); } Seems reasonable to extend the condition with ' || DL->getLine() == 0'. I'm not aware of a good way to say "this instruction is not associated with any line" in CodeView. On Wed, Aug 17, 2016 at 12:51 PM, Adrian...
2013 Apr 26
0
[LLVMdev] Inconsistent use of is_stmt flag in .debug_line
...f we have an instruction in a function which: 1) Is associated with the line number of the beginning of the function 2) Comes before the end of the prologue then we overwrite the earlier line table entry with a similar entry which lacks the is_stmt flag. The relevant code is: unsigned Flags = 0; PrevInstLoc = DL; if (DL == PrologEndLoc) { Flags |= DWARF2_FLAG_PROLOGUE_END; PrologEndLoc = DebugLoc(); } if (PrologEndLoc.isUnknown()) Flags |= DWARF2_FLAG_IS_STMT; if (!DL.isUnknown()) { const MDNode *Scope = DL.getScope(Asm->MF->getFunction()->getContext()); recordSourceLine(DL.g...
2016 Aug 17
2
CodeView and "line 0" ?
I've been playing with Fred Riss's "line 0" patch for DWARF (https://reviews.llvm.org/D16569) but in adapting it for current trunk, I find the DwarfDebug stuff has been refactored to allow either DWARF or CodeView. That's all good, but the question is whether the "line 0" patch should be DWARF-specific or common. The DWARF spec explicitly states that code not