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disolve a hack, having CodeGenInstAlias decode the alias in the .td

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file instead of the asmmatcher.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118324 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-11-06 06:39:47 +00:00
parent 2a301704ea
commit 225549f775
3 changed files with 31 additions and 13 deletions
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10
utils/TableGen/CodeGenInstruction.cpp
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@@ -388,8 +388,16 @@ FlattenAsmStringVariants(StringRef Cur, unsigned Variant) {
/// CodeGenInstAlias Implementation
//===----------------------------------------------------------------------===//
CodeGenInstAlias::CodeGenInstAlias(Record *R) : TheDef(R), Operands(R) {
CodeGenInstAlias::CodeGenInstAlias(Record *R, CodeGenTarget &T)
: TheDef(R), Operands(R) {
AsmString = R->getValueAsString("AsmString");
Result = R->getValueAsDag("ResultInst");
// Verify that the root of the result is an instruction.
DefInit *DI = dynamic_cast<DefInit*>(Result->getOperator());
if (DI == 0 || !DI->getDef()->isSubClassOf("Instruction"))
throw TGError(R->getLoc(), "result of inst alias should be an instruction");
ResultInst = &T.getInstruction(DI->getDef());
}