introduce a section kind for common linkage. Use this to slightly
simplify and commonize some of the asmprinter logic for globals.
This also avoids printing the MCSection for .zerofill, which broke
the llvm-gcc build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93843 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetLoweringObjectFile.cpp b/lib/Target/TargetLoweringObjectFile.cpp
index 26a181a..cd05580 100644
--- a/lib/Target/TargetLoweringObjectFile.cpp
+++ b/lib/Target/TargetLoweringObjectFile.cpp
@@ -141,6 +141,10 @@
return SectionKind::getThreadData();
}
+ // Variables with common linkage always get classified as common.
+ if (GVar->hasCommonLinkage())
+ return SectionKind::getCommon();
+
// Variable can be easily put to BSS section.
if (isSuitableForBSS(GVar))
return SectionKind::getBSS();
@@ -577,7 +581,7 @@
// If this global is linkonce/weak and the target handles this by emitting it
// into a 'uniqued' section name, create and return the section now.
- if (GV->isWeakForLinker()) {
+ if (GV->isWeakForLinker() && !Kind.isCommon()) {
const char *Prefix = getSectionPrefixForUniqueGlobal(Kind);
SmallString<128> Name;
Name.append(Prefix, Prefix+strlen(Prefix));
@@ -630,7 +634,7 @@
if (Kind.isThreadData()) return TLSDataSection;
if (Kind.isThreadBSS()) return TLSBSSSection;
- if (Kind.isBSS()) return BSSSection;
+ if (Kind.isBSS() || Kind.isCommon()) return BSSSection;
if (Kind.isDataNoRel()) return DataSection;
if (Kind.isDataRelLocal()) return DataRelLocalSection;