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convert some late code (called by regalloc and code emission)

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to use isGlobalStubReference instead of GVRequiresExtraLoad
(which should really be part of isel).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75234 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-07-10 06:07:08 +00:00
parent 281bada3b0
commit 07406346eb
2 changed files with 5 additions and 12 deletions
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6
lib/Target/X86/X86CodeEmitter.cpp
View File

@ -293,15 +293,15 @@ static bool isDisp8(int Value) {
static bool gvNeedsNonLazyPtr(const MachineOperand &GVOp,
const TargetMachine &TM) {
const GlobalValue *GV = GVOp.getGlobal();
// For Darwin-64, simulate the linktime GOT by using the same non-lazy-pointer
// mechanism as 32-bit mode.
if (TM.getSubtarget<X86Subtarget>().is64Bit() &&
!TM.getSubtarget<X86Subtarget>().isTargetDarwin())
return false;
return TM.getSubtarget<X86Subtarget>().GVRequiresExtraLoad(GV, TM);
// Return true if this is a reference to a stub containing the address of the
// global, not the global itself.
return isGlobalStubReference(GVOp);
}
template<class CodeEmitter>

11
lib/Target/X86/X86InstrInfo.cpp
View File

@ -762,7 +762,6 @@ unsigned X86InstrInfo::isStoreToStackSlot(const MachineInstr *MI,
return 0;
}
/// regIsPICBase - Return true if register is PIC base (i.e.g defined by
/// X86::MOVPC32r.
static bool regIsPICBase(unsigned BaseReg, const MachineRegisterInfo &MRI) {
@ -778,12 +777,6 @@ static bool regIsPICBase(unsigned BaseReg, const MachineRegisterInfo &MRI) {
return isPICBase;
}
/// isGVStub - Return true if the GV requires an extra load to get the
/// real address.
static inline bool isGVStub(GlobalValue *GV, X86TargetMachine &TM) {
return TM.getSubtarget<X86Subtarget>().GVRequiresExtraLoad(GV, TM);
}
/// CanRematLoadWithDispOperand - Return true if a load with the specified
/// operand is a candidate for remat: for this to be true we need to know that
/// the load will always return the same value, even if moved.
@ -796,7 +789,7 @@ static bool CanRematLoadWithDispOperand(const MachineOperand &MO,
if (MO.isGlobal()) {
// If this is a load of a stub, not of the global, we can remat it. This
// access will always return the address of the global.
if (isGVStub(MO.getGlobal(), TM))
if (isGlobalStubReference(MO))
return true;
// If the global itself is constant, we can remat the load.
@ -987,7 +980,7 @@ bool X86InstrInfo::isInvariantLoad(const MachineInstr *MI) const {
return true;
if (MO.isGlobal())
return isGVStub(MO.getGlobal(), TM);
return isGlobalStubReference(MO);
// If this is a load from an invariant stack slot, the load is a constant.
if (MO.isFI()) {