DarwinTargetAsmInfo::MergeableStringSection(const GlobalVariable *GV) const {
const TargetData *TD = TM.getTargetData();
Constant *C = cast<GlobalVariable>(GV)->getInitializer();
- const Type *Type = cast<ConstantArray>(C)->getType()->getElementType();
+ const Type *Ty = cast<ArrayType>(C->getType())->getElementType();
- unsigned Size = TD->getTypePaddedSize(Type);
+ unsigned Size = TD->getTypePaddedSize(Ty);
if (Size) {
unsigned Align = TD->getPreferredAlignment(GV);
if (Align <= 32)
ELFTargetAsmInfo::MergeableStringSection(const GlobalVariable *GV) const {
const TargetData *TD = TM.getTargetData();
Constant *C = cast<GlobalVariable>(GV)->getInitializer();
- const ConstantArray *CVA = cast<ConstantArray>(C);
- const Type *Ty = CVA->getType()->getElementType();
+ const Type *Ty = cast<ArrayType>(C->getType())->getElementType();
unsigned Size = TD->getTypePaddedSize(Ty);
if (Size <= 16) {
//===----------------------------------------------------------------------===//
#include "llvm/Constants.h"
+#include "llvm/DerivedTypes.h"
#include "llvm/GlobalVariable.h"
#include "llvm/Function.h"
#include "llvm/Module.h"
return (C->isNullValue() && !GV->isConstant() && !NoZerosInBSS);
}
+static bool isConstantString(const Constant *C) {
+ // First check: is we have constant array of i8 terminated with zero
+ const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
+ // Check, if initializer is a null-terminated string
+ if (CVA && CVA->isCString())
+ return true;
+
+ // Another possibility: [1 x i8] zeroinitializer
+ if (isa<ConstantAggregateZero>(C)) {
+ if (const ArrayType *Ty = dyn_cast<ArrayType>(C->getType())) {
+ return (Ty->getElementType() == Type::Int8Ty &&
+ Ty->getNumElements() == 1);
+ }
+ }
+
+ return false;
+}
+
+
SectionKind::Kind
TargetAsmInfo::SectionKindForGlobal(const GlobalValue *GV) const {
// Early exit - functions should be always in text sections.
if (C->ContainsRelocations())
return SectionKind::ROData;
else {
- const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
// Check, if initializer is a null-terminated string
- if (CVA && CVA->isCString())
+ if (isConstantString(C))
return SectionKind::RODataMergeStr;
else
return SectionKind::RODataMergeConst;