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implement extractelement.

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llvm-svn: 47812
This commit is contained in:
Chris Lattner 2008-03-02 03:57:08 +00:00
parent 72e898e589
commit 18c26f3dad
1 changed files with 17 additions and 2 deletions
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19
lib/Target/CBackend/CBackend.cpp
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@ -191,8 +191,10 @@ namespace {
// Don't inline a load across a store or other bad things!
return false;
// Must not be used in inline asm
if (I.hasOneUse() && isInlineAsm(*I.use_back())) return false;
// Must not be used in inline asm or extractelement.
if (I.hasOneUse() &&
(isInlineAsm(*I.use_back()) || isa<ExtractElementInst>(I)))
return false;
// Only inline instruction it if it's use is in the same BB as the inst.
return I.getParent() == cast<Instruction>(I.use_back())->getParent();
@ -253,6 +255,7 @@ namespace {
void visitVAArgInst (VAArgInst &I);
void visitInsertElementInst(InsertElementInst &I);
void visitExtractElementInst(ExtractElementInst &I);
void visitInstruction(Instruction &I) {
cerr << "C Writer does not know about " << I;
@ -3037,6 +3040,18 @@ void CWriter::visitInsertElementInst(InsertElementInst &I) {
Out << ")";
}
void CWriter::visitExtractElementInst(ExtractElementInst &I) {
// We know that our operand is not inlined.
Out << "((";
const Type *EltTy =
cast<VectorType>(I.getOperand(0)->getType())->getElementType();
printType(Out, PointerType::getUnqual(EltTy));
Out << ")(&" << GetValueName(I.getOperand(0)) << "))[";
writeOperand(I.getOperand(1));
Out << "]";
}
//===----------------------------------------------------------------------===//
// External Interface declaration