search for: findprologueendloc

...skip over all instruction marked with the MachineInstr::FrameSetup flag[1]. >From my point of view, skipping over all FrameSetup instructions sounds like the more robust way to go about things. I haven't fully traced through where the flag is used in LLVM, but it does seem that DwarfDebug::findPrologueEndLoc will return the wrong result if the flag isn't consistently set on frame setup code. The problem is that unless you override TargetFrameLowering::spillCalleeSavedRegisters, then PrologEpilogInserter will just spill callee saved registers through a series of calls to storeRegToStackSlot. This is...

...Instr::FrameSetup flag[1]. > > > > From my point of view, skipping over all FrameSetup instructions sounds > like > > the more robust way to go about things. I haven't fully traced through > where > > the flag is used in LLVM, but it does seem that > DwarfDebug::findPrologueEndLoc > > will return the wrong result if the flag isn't consistently set on frame > setup > > code. The problem is that unless you override > > TargetFrameLowering::spillCalleeSavedRegisters, then > PrologEpilogInserter will > > just spill callee saved registers through...