maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Use the shared asmprinter code for printing special llvm globals 

llvm-svn: 24695
This commit is contained in:
Chris Lattner 2005-12-13 06:32:50 +00:00
parent f0e9aef954
commit 87079884d1
3 changed files with 10 additions and 71 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
llvm/lib/Target/PowerPC/PPCAsmPrinter.cpp
View File

@ -198,14 +198,14 @@ namespace {
AlignmentIsInBytes = false; // Alignment is by power of 2.
ConstantPoolSection = "\t.const\t";
LCOMMDirective = "\t.lcomm\t";
StaticCtorsSection = ".mod_init_func";
StaticDtorsSection = ".mod_term_func";
}
virtual const char *getPassName() const {
return "Darwin PPC Assembly Printer";
}
void EmitXXStructorList(Constant *List);
bool runOnMachineFunction(MachineFunction &F);
bool doInitialization(Module &M);
bool doFinalization(Module &M);
@ -415,21 +415,6 @@ bool DarwinAsmPrinter::doInitialization(Module &M) {
return false;
}
/// EmitXXStructorList - Emit the ctor or dtor list. On darwin, this just
/// prints out the function pointers.
void DarwinAsmPrinter::EmitXXStructorList(Constant *List) {
// Should be an array of '{ int, void ()* }' structs. The first value is the
// init priority, which we ignore.
if (!isa<ConstantArray>(List)) return;
ConstantArray *InitList = cast<ConstantArray>(List);
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i)
if (ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i))){
if (CS->getNumOperands() != 2) return; // Not array of 2-element structs.
// Emit the function pointer.
EmitGlobalConstant(CS->getOperand(1));
}
}
bool DarwinAsmPrinter::doFinalization(Module &M) {
const TargetData &TD = TM.getTargetData();
@ -438,22 +423,9 @@ bool DarwinAsmPrinter::doFinalization(Module &M) {
I != E; ++I) {
if (!I->hasInitializer()) continue; // External global require no code
// Check to see if this is a special global used by LLVM.
if (I->hasAppendingLinkage()) {
if (I->getName() == "llvm.used")
continue; // No need to emit this at all.
if (I->getName() == "llvm.global_ctors") {
SwitchSection(".mod_init_func", 0);
EmitAlignment(2, 0);
EmitXXStructorList(I->getInitializer());
continue;
} else if (I->getName() == "llvm.global_dtors") {
SwitchSection(".mod_term_func", 0);
EmitAlignment(2, 0);
EmitXXStructorList(I->getInitializer());
continue;
}
}
// Check to see if this is a special global used by LLVM, if so, emit it.
if (I->hasAppendingLinkage() && EmitSpecialLLVMGlobal(I))
continue;
O << '\n';
std::string name = Mang->getValueName(I);

42
llvm/lib/Target/X86/X86AsmPrinter.cpp
View File

@ -58,6 +58,8 @@ bool X86SharedAsmPrinter::doInitialization(Module &M) {
COMMDirectiveTakesAlignment = false;
HasDotTypeDotSizeDirective = false;
forDarwin = true;
StaticCtorsSection = ".mod_init_func";
StaticDtorsSection = ".mod_term_func";
break;
case X86Subtarget::isCygwin:
GlobalPrefix = "_";
@ -74,21 +76,6 @@ bool X86SharedAsmPrinter::doInitialization(Module &M) {
return AsmPrinter::doInitialization(M);
}
/// EmitXXStructorList - Emit the ctor or dtor list. On darwin, this just
/// prints out the function pointers.
void X86SharedAsmPrinter::EmitXXStructorList(Constant *List) {
// Should be an array of '{ int, void ()* }' structs. The first value is the
// init priority, which we ignore.
if (!isa<ConstantArray>(List)) return;
ConstantArray *InitList = cast<ConstantArray>(List);
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i)
if (ConstantStruct *CS = dyn_cast<ConstantStruct>(InitList->getOperand(i))){
if (CS->getNumOperands() != 2) return; // Not array of 2-element structs.
// Emit the function pointer.
EmitGlobalConstant(CS->getOperand(1));
}
}
bool X86SharedAsmPrinter::doFinalization(Module &M) {
const TargetData &TD = TM.getTargetData();
@ -97,28 +84,9 @@ bool X86SharedAsmPrinter::doFinalization(Module &M) {
E = M.global_end(); I != E; ++I) {
if (!I->hasInitializer()) continue; // External global require no code
// Check to see if this is a special global used by LLVM.
if (I->hasAppendingLinkage()) {
if (I->getName() == "llvm.used")
continue; // No need to emit this at all.
if (I->getName() == "llvm.global_ctors") {
if (forDarwin)
SwitchSection(".mod_init_func", 0);
else
SwitchSection(".ctors,\"aw\",@progbits", 0);
EmitAlignment(2, 0);
EmitXXStructorList(I->getInitializer());
continue;
} else if (I->getName() == "llvm.global_dtors") {
if (forDarwin)
SwitchSection(".mod_term_func", 0);
else
SwitchSection(".dtors,\"aw\",@progbits", 0);
EmitAlignment(2, 0);
EmitXXStructorList(I->getInitializer());
continue;
}
}
// Check to see if this is a special global used by LLVM, if so, emit it.
if (I->hasAppendingLinkage() && EmitSpecialLLVMGlobal(I))
continue;
O << "\n\n";
std::string name = Mang->getValueName(I);

1
llvm/lib/Target/X86/X86AsmPrinter.h
View File

@ -33,7 +33,6 @@ struct X86SharedAsmPrinter : public AsmPrinter {
bool doInitialization(Module &M);
bool doFinalization(Module &M);
void EmitXXStructorList(Constant *List);
bool forDarwin; // FIXME: eliminate.