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Autogen matching code for ADJCALLSTACK[UP|DOWN], thanks to Evan's tblgen

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improvements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24591 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-12-04 19:01:59 +00:00
parent 60a4ab2d5c
commit 937a79dbe3
2 changed files with 12 additions and 11 deletions
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8
lib/Target/PowerPC/PPCISelDAGToDAG.cpp
View File

@ -1190,14 +1190,6 @@ SDOperand PPCDAGToDAGISel::Select(SDOperand Op) {
getI32Imm(BROpc));
}
case ISD::CALLSEQ_START:
case ISD::CALLSEQ_END: {
unsigned Amt = cast<ConstantSDNode>(N->getOperand(1))->getValue();
unsigned Opc = N->getOpcode() == ISD::CALLSEQ_START ?
PPC::ADJCALLSTACKDOWN : PPC::ADJCALLSTACKUP;
return CurDAG->SelectNodeTo(N, Opc, MVT::Other,
getI32Imm(Amt), Select(N->getOperand(0)));
}
case ISD::RET: {
SDOperand Chain = Select(N->getOperand(0)); // Token chain.

15
lib/Target/PowerPC/PPCInstrInfo.td
View File

@ -30,6 +30,11 @@ def PPCfsel : SDNode<"PPCISD::FSEL",
def PPChi : SDNode<"PPCISD::Hi", SDTIntBinOp, []>;
def PPClo : SDNode<"PPCISD::Lo", SDTIntBinOp, []>;
// These are target-independent nodes, but have target-specific formats.
def SDT_PPCCallSeq : SDTypeProfile<0, 1, [ SDTCisVT<0, i32> ]>;
def callseq_start : SDNode<"ISD::CALLSEQ_START", SDT_PPCCallSeq,[SDNPHasChain]>;
def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_PPCCallSeq,[SDNPHasChain]>;
//===----------------------------------------------------------------------===//
// PowerPC specific transformation functions and pattern fragments.
//
@ -158,9 +163,13 @@ def crbitm: Operand<i8> {
// Pseudo-instructions:
def PHI : Pseudo<(ops variable_ops), "; PHI", []>;
let isLoad = 1 in {
def ADJCALLSTACKDOWN : Pseudo<(ops u16imm:$amt), "; ADJCALLSTACKDOWN", []>;
def ADJCALLSTACKUP : Pseudo<(ops u16imm:$amt), "; ADJCALLSTACKUP", []>;
let isLoad = 1, hasCtrlDep = 1 in {
def ADJCALLSTACKDOWN : Pseudo<(ops u16imm:$amt),
"; ADJCALLSTACKDOWN",
[(callseq_start imm:$amt)]>;
def ADJCALLSTACKUP : Pseudo<(ops u16imm:$amt),
"; ADJCALLSTACKUP",
[(callseq_end imm:$amt)]>;
}
def IMPLICIT_DEF_GPR : Pseudo<(ops GPRC:$rD), "; $rD = IMPLICIT_DEF_GPRC",
[(set GPRC:$rD, (undef))]>;