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Initial CBE support for multiple return values. 

llvm-svn: 50187
This commit is contained in:
Dan Gohman 2008-04-23 21:49:29 +00:00
parent 1e31bf5b19
commit d871fa5cb6
1 changed files with 30 additions and 0 deletions
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30
llvm/lib/Target/CBackend/CBackend.cpp
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@ -283,6 +283,7 @@ namespace {
void visitInsertElementInst(InsertElementInst &I);
void visitExtractElementInst(ExtractElementInst &I);
void visitShuffleVectorInst(ShuffleVectorInst &SVI);
void visitGetResultInst(GetResultInst &GRI);
void visitInstruction(Instruction &I) {
cerr << "C Writer does not know about " << I;
@ -2174,6 +2175,24 @@ void CWriter::visitReturnInst(ReturnInst &I) {
return;
}
if (I.getNumOperands() > 1) {
Out << " {\n";
Out << " ";
printType(Out, I.getParent()->getParent()->getReturnType());
Out << " llvm_cbe_mrv_temp = {\n";
for (unsigned i = 0, e = I.getNumOperands(); i != e; ++i) {
Out << " ";
writeOperand(I.getOperand(i));
if (i != e - 1)
Out << ",";
Out << "\n";
}
Out << " };\n";
Out << " return llvm_cbe_mrv_temp;\n";
Out << " }\n";
return;
}
Out << " return";
if (I.getNumOperands()) {
Out << ' ';
@ -3184,6 +3203,17 @@ void CWriter::visitShuffleVectorInst(ShuffleVectorInst &SVI) {
Out << "}";
}
void CWriter::visitGetResultInst(GetResultInst &GRI) {
Out << "(";
if (isa<UndefValue>(GRI.getOperand(0))) {
Out << "(";
printType(Out, GRI.getType());
Out << ") 0/*UNDEF*/";
} else {
Out << GetValueName(GRI.getOperand(0)) << ".field" << GRI.getIndex();
}
Out << ")";
}
//===----------------------------------------------------------------------===//
// External Interface declaration