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Diffstat (limited to 'lib/Target/CBackend/CBackend.cpp')
-rw-r--r--lib/Target/CBackend/CBackend.cpp21
1 files changed, 13 insertions, 8 deletions
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 46c8bf1bd7..a4d5483f2a 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1696,7 +1696,7 @@ void CWriter::printFunction(Function &F) {
bool PrintedVar = false;
// print local variable information for the function
- for (inst_iterator I = inst_begin(&F), E = inst_end(&F); I != E; ++I)
+ for (inst_iterator I = inst_begin(&F), E = inst_end(&F); I != E; ++I) {
if (const AllocaInst *AI = isDirectAlloca(&*I)) {
Out << " ";
printType(Out, AI->getAllocatedType(), Mang->getValueName(AI));
@@ -1714,16 +1714,20 @@ void CWriter::printFunction(Function &F) {
Out << ";\n";
}
PrintedVar = true;
- } else if (isa<BitCastInst>(*I) &&
- ((I->getType()->isFloatingPoint() &&
- I->getOperand(0)->getType()->isInteger()) ||
- (I->getType()->isInteger() &&
- I->getOperand(0)->getType()->isFloatingPoint()))) {
- // We need a temporary for the BitCast to use so it can pluck a
- // value out of a union to do the BitCast.
+ }
+ // We need a temporary for the BitCast to use so it can pluck a value out
+ // of a uniont to do the BitCast. This is separate from the need for a
+ // variable to hold the result of the BitCast.
+ if (isa<BitCastInst>(*I) &&
+ ((I->getType()->isFloatingPoint() &&
+ I->getOperand(0)->getType()->isInteger()) ||
+ (I->getType()->isInteger() &&
+ I->getOperand(0)->getType()->isFloatingPoint()))) {
Out << " llvmBitCastUnion " << Mang->getValueName(&*I)
<< "__BITCAST_TEMPORARY;\n";
+ PrintedVar = true;
}
+ }
if (PrintedVar)
Out << '\n';
@@ -2026,6 +2030,7 @@ void CWriter::visitCastInst(CastInst &I) {
I.getOperand(0)->getType()->isInteger()) ||
(I.getType()->isInteger() &&
I.getOperand(0)->getType()->isFloatingPoint()))) {
+
// These int<->float and long<->double casts need to be handled specially
Out << Mang->getValueName(&I) << "__BITCAST_TEMPORARY."
<< getFloatBitCastField(I.getOperand(0)->getType()) << " = ";