search for: restorecalleesavedregist

Hi, Target overrides of processFunctionBeforeFrameFinalized() are misused in two cases (MBlaze and PowerPC) to set the offsets of objects. Unfortunately this has no effect because the offsets are immediately reset by calculateFrameObjectOffsets(). The PowerPC backend does this to setup the stack frame layout according to the ABI. Ie. it spills the registers etc. in a fixed layout. How to do

...} + + bool IsV4PopReturn = IsLRPartOfCalleeSavedInfo; IsV4PopReturn &= STI.hasV4TOps() && !STI.hasV5TOps(); + if (IsTailCallReturn) { + MBBI = MBB.getLastNonDebugInstr(); + + // First restore callee saved registers. Unlike for normal returns + // this is *not* done in restoreCalleeSavedRegisters. + const std::vector<CalleeSavedInfo> &CSI(MFI->getCalleeSavedInfo()); + + bool IsR4IncludedInCSI = false; + bool IsLRIncludedInCSI = false; + for (unsigned i = CSI.size(); i != 0; --i) { + unsigned Reg = CSI[i-1].getReg(); + if (Reg == ARM::R4) + IsR4In...