diff options
Diffstat (limited to 'llvm/lib/Target/TargetLoweringObjectFile.cpp')
| -rw-r--r-- | llvm/lib/Target/TargetLoweringObjectFile.cpp | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/llvm/lib/Target/TargetLoweringObjectFile.cpp b/llvm/lib/Target/TargetLoweringObjectFile.cpp index ee4cca6..907ecf4 100644 --- a/llvm/lib/Target/TargetLoweringObjectFile.cpp +++ b/llvm/lib/Target/TargetLoweringObjectFile.cpp @@ -64,7 +64,7 @@ static bool isNullOrUndef(const Constant *C) { return true; } -static bool isSuitableForBSS(const GlobalVariable *GV, bool NoZerosInBSS) { +static bool isSuitableForBSS(const GlobalVariable *GV) { const Constant *C = GV->getInitializer(); // Must have zero initializer. @@ -79,10 +79,6 @@ static bool isSuitableForBSS(const GlobalVariable *GV, bool NoZerosInBSS) { if (GV->hasSection()) return false; - // If -nozero-initialized-in-bss is specified, don't ever use BSS. - if (NoZerosInBSS) - return false; - // Otherwise, put it in BSS! return true; } @@ -155,7 +151,7 @@ SectionKind TargetLoweringObjectFile::getKindForGlobal(const GlobalObject *GO, // Handle thread-local data first. if (GVar->isThreadLocal()) { - if (isSuitableForBSS(GVar, TM.Options.NoZerosInBSS)) + if (isSuitableForBSS(GVar) && !TM.Options.NoZerosInBSS) return SectionKind::getThreadBSS(); return SectionKind::getThreadData(); } @@ -164,8 +160,9 @@ SectionKind TargetLoweringObjectFile::getKindForGlobal(const GlobalObject *GO, if (GVar->hasCommonLinkage()) return SectionKind::getCommon(); - // Variable can be easily put to BSS section. - if (isSuitableForBSS(GVar, TM.Options.NoZerosInBSS)) { + // Most non-mergeable zero data can be put in the BSS section unless otherwise + // specified. + if (isSuitableForBSS(GVar) && !TM.Options.NoZerosInBSS) { if (GVar->hasLocalLinkage()) return SectionKind::getBSSLocal(); else if (GVar->hasExternalLinkage()) |