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Refactor some repeated logic into a separate function.

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llvm-svn: 63989
This commit is contained in:
Dan Gohman 2009-02-07 00:43:41 +00:00
parent 8aeae15ebd
commit 8437b9efa1
1 changed files with 7 additions and 2 deletions
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9
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -76,6 +76,11 @@ namespace {
: BaseType(RegBase), isRIPRel(false), Scale(1), IndexReg(), Disp(0),
GV(0), CP(0), ES(0), JT(-1), Align(0) {
}
bool hasSymbolicDisplacement() const {
return GV != 0 || CP != 0 || ES != 0 || JT != -1;
}
void dump() {
cerr << "X86ISelAddressMode " << this << "\n";
cerr << "Base.Reg ";
@ -768,7 +773,7 @@ bool X86DAGToDAGISel::MatchAddress(SDValue N, X86ISelAddressMode &AM,
if (is64Bit && (TM.getCodeModel() != CodeModel::Small ||
AM.Base.Reg.getNode() || AM.IndexReg.getNode()))
break;
if (AM.GV != 0 || AM.CP != 0 || AM.ES != 0 || AM.JT != -1)
if (AM.hasSymbolicDisplacement())
break;
// If value is available in a register both base and index components have
// been picked, we can't fit the result available in the register in the
@ -1114,7 +1119,7 @@ bool X86DAGToDAGISel::SelectLEAAddr(SDValue Op, SDValue N,
// optimal (especially for code size consideration). LEA is nice because of
// its three-address nature. Tweak the cost function again when we can run
// convertToThreeAddress() at register allocation time.
if (AM.GV || AM.CP || AM.ES || AM.JT != -1) {
if (AM.hasSymbolicDisplacement()) {
// For X86-64, we should always use lea to materialize RIP relative
// addresses.
if (Subtarget->is64Bit())