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Start using the AsmPrinter shared SwitchSection code. This allows the X86

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backend to implement global variables in sections.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24447 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-11-21 07:11:11 +00:00
parent f6163a0079
commit 224cfc2eac
2 changed files with 3 additions and 18 deletions
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10
lib/Target/X86/X86AsmPrinter.cpp
View File

@@ -105,7 +105,6 @@ void X86SharedAsmPrinter::printConstantPool(MachineConstantPool *MCP) {
bool X86SharedAsmPrinter::doFinalization(Module &M) { bool X86SharedAsmPrinter::doFinalization(Module &M) {
const TargetData &TD = TM.getTargetData(); const TargetData &TD = TM.getTargetData();
std::string CurSection;
// Print out module-level global variables here. // Print out module-level global variables here.
for (Module::const_global_iterator I = M.global_begin(), for (Module::const_global_iterator I = M.global_begin(),
@@ -120,7 +119,7 @@ bool X86SharedAsmPrinter::doFinalization(Module &M) {
if (C->isNullValue() && if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() || (I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
I->hasWeakLinkage() /* FIXME: Verify correct */)) { I->hasWeakLinkage() /* FIXME: Verify correct */)) {
switchSection(O, CurSection, ".data"); SwitchSection(".data", I);
if (!forCygwin && !forDarwin && I->hasInternalLinkage()) if (!forCygwin && !forDarwin && I->hasInternalLinkage())
O << "\t.local " << name << "\n"; O << "\t.local " << name << "\n";
if (forDarwin && I->hasInternalLinkage()) if (forDarwin && I->hasInternalLinkage())
@@ -139,8 +138,8 @@ bool X86SharedAsmPrinter::doFinalization(Module &M) {
case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak. case GlobalValue::WeakLinkage: // FIXME: Verify correct for weak.
// Nonnull linkonce -> weak // Nonnull linkonce -> weak
O << "\t.weak " << name << "\n"; O << "\t.weak " << name << "\n";
switchSection(O, CurSection, "");
O << "\t.section\t.llvm.linkonce.d." << name << ",\"aw\",@progbits\n"; O << "\t.section\t.llvm.linkonce.d." << name << ",\"aw\",@progbits\n";
SwitchSection("", I);
break; break;
case GlobalValue::AppendingLinkage: case GlobalValue::AppendingLinkage:
// FIXME: appending linkage variables should go into a section of // FIXME: appending linkage variables should go into a section of
@@ -150,10 +149,7 @@ bool X86SharedAsmPrinter::doFinalization(Module &M) {
O << "\t.globl " << name << "\n"; O << "\t.globl " << name << "\n";
// FALL THROUGH // FALL THROUGH
case GlobalValue::InternalLinkage: case GlobalValue::InternalLinkage:
if (C->isNullValue()) SwitchSection(C->isNullValue() ? ".bss" : ".data", I);
switchSection(O, CurSection, ".bss");
else
switchSection(O, CurSection, ".data");
break; break;
} }

11
lib/Target/X86/X86AsmPrinter.h
View File

@@ -55,17 +55,6 @@ struct X86SharedAsmPrinter : public AsmPrinter {
MI->getOperand(Op+2).isRegister() && (MI->getOperand(Op+3).isImmediate()|| MI->getOperand(Op+2).isRegister() && (MI->getOperand(Op+3).isImmediate()||
MI->getOperand(Op+3).isGlobalAddress()); MI->getOperand(Op+3).isGlobalAddress());
} }
// switchSection - Switch to the specified section of the executable if we are
// not already in it!
inline static void switchSection(std::ostream &OS, std::string &CurSection,
const char *NewSection) {
if (CurSection != NewSection) {
CurSection = NewSection;
if (!CurSection.empty())
OS << "\t" << NewSection << "\n";
}
}
}; };
} // end namespace x86 } // end namespace x86