Author: ddunbar
Date: Wed Nov 12 04:30:32 2008
New Revision: 59129
URL: http://llvm.org/viewvc/llvm-project?rev=59129&view=rev
Log:
Handle ?: in EmitBranchOnBoolExpr.
Modified:
cfe/trunk/lib/CodeGen/CodeGenFunction.cpp
Modified: cfe/trunk/lib/CodeGen/CodeGenFunction.cpp
URL:
http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.cpp?rev=59129&r1=59128&r2=59129&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenFunction.cpp (original)
+++ cfe/trunk/lib/CodeGen/CodeGenFunction.cpp Wed Nov 12 04:30:32 2008
@@ -271,6 +271,23 @@
return EmitBranchOnBoolExpr(CondUOp->getSubExpr(), FalseBlock,
TrueBlock);
}
+ if (const ConditionalOperator *CondOp = dyn_cast<ConditionalOperator>(Cond))
{
+ // Handle ?: operator.
+
+ // Just ignore GNU ?: extension.
+ if (CondOp->getLHS()) {
+ // br(c ? x : y, t, f) -> br(c, br(x, t, f), br(y, t, f))
+ llvm::BasicBlock *LHSBlock = createBasicBlock("cond.true");
+ llvm::BasicBlock *RHSBlock = createBasicBlock("cond.false");
+ EmitBranchOnBoolExpr(CondOp->getCond(), LHSBlock, RHSBlock);
+ EmitBlock(LHSBlock);
+ EmitBranchOnBoolExpr(CondOp->getLHS(), TrueBlock, FalseBlock);
+ EmitBlock(RHSBlock);
+ EmitBranchOnBoolExpr(CondOp->getRHS(), TrueBlock, FalseBlock);
+ return;
+ }
+ }
+
// Emit the code with the fully general case.
llvm::Value *CondV = EvaluateExprAsBool(Cond);
Builder.CreateCondBr(CondV, TrueBlock, FalseBlock);
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