search for: cc_x86_32_tailcal

...werX86_32FastCCArguments There is some code checking whether a TAIL CALL really is eligible for tail call optimization. I modified: LowerRET to create a TC_RETURN node. (used for adjusting stackpointer and jumping to function in epilogue, similar to EH_RETURN) There is a new calling convention: CC_X86_32_TailCall which is ~ CC_X86_32_C minus ECX. There are some modifications in X86InstrInfo.td There are new X86 DAG nodes: TRUETAILCALL TC_RETURN There is some voodoo in X86RegisterInfo.cpp to deal with the RETADDR problem described in X86ISelLowering.cpp comments. (callee has more args than caller ->...

...= Op.getOperand(4); + //unsigned NumOps = (Op.getNumOperands() - 5) / 2; + + // Analyze operands of the call, assigning locations to each operand. + SmallVector<CCValAssign, 16> ArgLocs; + CCState CCInfo(CC, isVarArg, getTargetMachine(), ArgLocs); + CCInfo.AnalyzeCallOperands(Op.Val, CC_X86_32_TailCall); + if (isTailCall && + IsEligibleForTailCallElimination(Op, DAG,CC, Callee) && + PerformTailCallOpt) { IsEligibleForTailCallElimination() should be a target hook. This way TargetLowering::LowerCallTo() can determine whether a call is eligible for tail call elimina...

...d NumOps = (Op.getNumOperands() - 5) / 2; > + > + // Analyze operands of the call, assigning locations to each > operand. > + SmallVector<CCValAssign, 16> ArgLocs; > + CCState CCInfo(CC, isVarArg, getTargetMachine(), ArgLocs); > + CCInfo.AnalyzeCallOperands(Op.Val, CC_X86_32_TailCall); > + if (isTailCall && > + IsEligibleForTailCallElimination(Op, DAG,CC, Callee) && > + PerformTailCallOpt) { > > > IsEligibleForTailCallElimination() should be a target hook. This way > TargetLowering::LowerCallTo() can determine whether a call is &...