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switch x86 zerofill emission over to use MCStreamer.

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llvm-svn: 93702
This commit is contained in:
Chris Lattner 2010-01-18 01:21:08 +00:00
parent d7bd67fa61
commit 40f9b01ab5
2 changed files with 14 additions and 3 deletions
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2
include/llvm/MC/MCAsmInfo.h
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@ -316,6 +316,8 @@ namespace llvm {
const char *getZeroFillDirective() const {
return ZeroFillDirective;
}
bool hasZeroFillDirective() const { return ZeroFillDirective != 0; }
const char *getNonexecutableStackDirective() const {
return NonexecutableStackDirective;
}

15
lib/Target/X86/AsmPrinter/X86AsmPrinter.cpp
View File

@ -685,10 +685,19 @@ void X86AsmPrinter::PrintGlobalVariable(const GlobalVariable* GVar) {
// Don't put things that should go in the cstring section into "comm".
!TheSection->getKind().isMergeableCString()) {
if (GVar->hasExternalLinkage()) {
if (const char *Directive = MAI->getZeroFillDirective()) {
if (MAI->hasZeroFillDirective()) {
// .globl _foo
OutStreamer.EmitSymbolAttribute(GVSym, MCStreamer::Global);
O << Directive << "__DATA, __common, " << *GVSym;
O << ", " << Size << ", " << Align << '\n';
// .zerofill __DATA, __common, _foo, 400, 5
TargetLoweringObjectFileMachO &TLOFMacho =
static_cast<TargetLoweringObjectFileMachO &>(getObjFileLowering());
// FIXME: This stuff should already be handled by SectionForGlobal!
const MCSection *TheSection =
TLOFMacho.getMachOSection("__DATA", "__common",
MCSectionMachO::S_ZEROFILL,
SectionKind::getBSS());
OutStreamer.EmitZerofill(TheSection, GVSym, Size, 1 << Align);
return;
}
}