#include "MipsTargetAsmInfo.h"
#include "MipsTargetMachine.h"
+#include "llvm/GlobalVariable.h"
using namespace llvm;
MipsTargetAsmInfo::MipsTargetAsmInfo(const MipsTargetMachine &TM):
ELFTargetAsmInfo(TM) {
+ Subtarget = &TM.getSubtarget<MipsSubtarget>();
+
AlignmentIsInBytes = false;
COMMDirectiveTakesAlignment = true;
Data16bitsDirective = "\t.half\t";
PrivateGlobalPrefix = "$";
JumpTableDataSection = "\t.rdata";
CommentString = "#";
- ReadOnlySection = "\t.rdata";
ZeroDirective = "\t.space\t";
BSSSection = "\t.section\t.bss";
- LCOMMDirective = "\t.lcomm\t";
CStringSection = ".rodata.str";
- if (!TM.getSubtarget<MipsSubtarget>().hasABICall())
+ if (!Subtarget->hasABICall()) {
JumpTableDirective = "\t.word\t";
- else
+ SmallDataSection = getNamedSection("\t.sdata", SectionFlags::Writeable);
+ SmallBSSSection = getNamedSection("\t.sbss",
+ SectionFlags::Writeable |
+ SectionFlags::BSS);
+ } else
JumpTableDirective = "\t.gpword\t";
}
+
+unsigned MipsTargetAsmInfo::
+SectionFlagsForGlobal(const GlobalValue *GV, const char* Name) const {
+ unsigned Flags = ELFTargetAsmInfo::SectionFlagsForGlobal(GV, Name);
+ // Mask out Small Section flag bit, Mips doesnt support 's' section symbol
+ // for its small sections.
+ return (Flags & (~SectionFlags::Small));
+}
+
+SectionKind::Kind MipsTargetAsmInfo::
+SectionKindForGlobal(const GlobalValue *GV) const {
+ SectionKind::Kind K = ELFTargetAsmInfo::SectionKindForGlobal(GV);
+
+ if (Subtarget->hasABICall())
+ return K;
+
+ if (K != SectionKind::Data && K != SectionKind::BSS &&
+ K != SectionKind::RODataMergeConst)
+ return K;
+
+ if (isa<GlobalVariable>(GV)) {
+ const TargetData *TD = TM.getTargetData();
+ unsigned Size = TD->getTypeAllocSize(GV->getType()->getElementType());
+ unsigned Threshold = Subtarget->getSSectionThreshold();
+
+ if (Size > 0 && Size <= Threshold) {
+ if (K == SectionKind::BSS)
+ return SectionKind::SmallBSS;
+ else
+ return SectionKind::SmallData;
+ }
+ }
+
+ return K;
+}
+
+const Section* MipsTargetAsmInfo::
+SelectSectionForGlobal(const GlobalValue *GV) const {
+ SectionKind::Kind K = SectionKindForGlobal(GV);
+ const GlobalVariable *GVA = dyn_cast<GlobalVariable>(GV);
+
+ if (GVA && (!GVA->isWeakForLinker()))
+ switch (K) {
+ case SectionKind::SmallData:
+ return getSmallDataSection();
+ case SectionKind::SmallBSS:
+ return getSmallBSSSection();
+ default: break;
+ }
+
+ return ELFTargetAsmInfo::SelectSectionForGlobal(GV);
+}