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make sure that global doubles are aligned to 8 bytes 

llvm-svn: 25981
This commit is contained in:
Chris Lattner 2006-02-05 01:46:49 +00:00
parent c070cb685d
commit cbab28414e
1 changed files with 10 additions and 5 deletions
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15
llvm/lib/CodeGen/AsmPrinter.cpp
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@ -179,11 +179,16 @@ unsigned AsmPrinter::getPreferredAlignmentLog(const GlobalVariable *GV) const {
if (GV->getAlignment() > (1U << Alignment))
Alignment = Log2_32(GV->getAlignment());
if (GV->hasInitializer() && Alignment < 4) {
// If the global is not external, see if it is large. If so, give it a
// larger alignment.
if (TM.getTargetData().getTypeSize(GV->getType()->getElementType()) > 128)
Alignment = 4; // 16-byte alignment.
if (GV->hasInitializer()) {
// Always round up alignment of global doubles to 8 bytes.
if (GV->getType()->getElementType() == Type::DoubleTy && Alignment < 3)
Alignment = 3;
if (Alignment < 4) {
// If the global is not external, see if it is large. If so, give it a
// larger alignment.
if (TM.getTargetData().getTypeSize(GV->getType()->getElementType()) > 128)
Alignment = 4; // 16-byte alignment.
}
}
return Alignment;
}