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some minor simplifications.

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llvm-svn: 75274
This commit is contained in:
Chris Lattner 2009-07-10 20:53:38 +00:00
parent 9deef50410
commit 933108f921
2 changed files with 33 additions and 15 deletions
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2
lib/Target/X86/X86InstrInfo.cpp
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@ -3270,7 +3270,7 @@ static unsigned GetInstSizeWithDesc(const MachineInstr &MI,
unsigned X86InstrInfo::GetInstSizeInBytes(const MachineInstr *MI) const {
const TargetInstrDesc &Desc = MI->getDesc();
bool IsPIC = (TM.getRelocationModel() == Reloc::PIC_);
bool IsPIC = TM.getRelocationModel() == Reloc::PIC_;
bool Is64BitMode = TM.getSubtargetImpl()->is64Bit();
unsigned Size = GetInstSizeWithDesc(*MI, &Desc, IsPIC, Is64BitMode);
if (Desc.getOpcode() == X86::MOVPC32r)

46
lib/Target/X86/X86Subtarget.cpp
View File

@ -87,35 +87,53 @@ ClassifyGlobalReference(const GlobalValue *GV, const TargetMachine &TM) const {
return X86II::MO_GOT;
}
if (isPICStyleStubAny()) {
// In Darwin/32, we have multiple different stub types, and we have both PIC
// and -mdynamic-no-pic. Determine whether we have a stub reference
// and/or whether the reference is relative to the PIC base or not.
bool IsPIC = TM.getRelocationModel() == Reloc::PIC_;
if (isPICStyleStubPIC(TM)) { // Darwin/32 in PIC mode.
// Determine whether we have a stub reference and/or whether the reference
// is relative to the PIC base or not.
// If this is a strong reference to a definition, it is definitely not
// through a stub.
if (!GV->isDeclaration() && !GV->isWeakForLinker())
return IsPIC ? X86II::MO_PIC_BASE_OFFSET : 0;
return X86II::MO_PIC_BASE_OFFSET;
// Unless we have a symbol with hidden visibility, we have to go through a
// normal $non_lazy_ptr stub because this symbol might be resolved late.
if (!GV->hasHiddenVisibility()) {
// Non-hidden $non_lazy_ptr reference.
return IsPIC ? X86II::MO_DARWIN_NONLAZY_PIC_BASE :
X86II::MO_DARWIN_NONLAZY;
}
if (!GV->hasHiddenVisibility()) // Non-hidden $non_lazy_ptr reference.
return X86II::MO_DARWIN_NONLAZY_PIC_BASE;
// If symbol visibility is hidden, we have a stub for common symbol
// references and external declarations.
if (GV->isDeclaration() || GV->hasCommonLinkage()) {
// Hidden $non_lazy_ptr reference.
return IsPIC ? X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE :
X86II::MO_DARWIN_HIDDEN_NONLAZY;
return X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE;
}
// Otherwise, no stub.
return IsPIC ? X86II::MO_PIC_BASE_OFFSET : 0;
return X86II::MO_PIC_BASE_OFFSET;
}
if (isPICStyleStubNoDynamic(TM)) { // Darwin/32 in -mdynamic-no-pic mode.
// Determine whether we have a stub reference.
// If this is a strong reference to a definition, it is definitely not
// through a stub.
if (!GV->isDeclaration() && !GV->isWeakForLinker())
return X86II::MO_NO_FLAG;
// Unless we have a symbol with hidden visibility, we have to go through a
// normal $non_lazy_ptr stub because this symbol might be resolved late.
if (!GV->hasHiddenVisibility()) // Non-hidden $non_lazy_ptr reference.
return X86II::MO_DARWIN_NONLAZY;
// If symbol visibility is hidden, we have a stub for common symbol
// references and external declarations.
if (GV->isDeclaration() || GV->hasCommonLinkage()) {
// Hidden $non_lazy_ptr reference.
return X86II::MO_DARWIN_HIDDEN_NONLAZY;
}
// Otherwise, no stub.
return X86II::MO_NO_FLAG;
}
// Direct static reference to global.