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make TLOF subclassify BSS based on linkage type into private, external

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and everything else (weak).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93846 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2010-01-19 04:15:51 +00:00
parent 56b1319fbe
commit ce8749e445
2 changed files with 20 additions and 3 deletions
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lib/Target/TargetLoweringObjectFile.cpp
+7 -2
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@@ -146,8 +146,13 @@ SectionKind TargetLoweringObjectFile::getKindForGlobal(const GlobalValue *GV,
return SectionKind::getCommon();
// Variable can be easily put to BSS section.
if (isSuitableForBSS(GVar))
if (isSuitableForBSS(GVar)) {
if (GVar->hasLocalLinkage())
return SectionKind::getBSSLocal();
else if (GVar->hasExternalLinkage())
return SectionKind::getBSSExtern();
return SectionKind::getBSS();
}
Constant *C = GVar->getInitializer();
@@ -926,7 +931,7 @@ SelectSectionForGlobal(const GlobalValue *GV, SectionKind Kind,
// Put zero initialized globals with strong external linkage in the
// DATA, __common section with the .zerofill directive.
if (Kind.isBSS() && GV->hasExternalLinkage())
if (Kind.isBSSExtern())
return DataCommonSection;
// Otherwise, just drop the variable in the normal data section.