Author: evancheng
Date: Thu Aug 30 00:52:20 2007
New Revision: 41597
URL: http://llvm.org/viewvc/llvm-project?rev=41597&view=rev
Log:
Add a variant of foldMemoryOperand to fold any load / store, not just load /
store from / to stack slots.
Modified:
llvm/trunk/include/llvm/CodeGen/LiveIntervalAnalysis.h
llvm/trunk/include/llvm/Target/MRegisterInfo.h
llvm/trunk/lib/Target/ARM/ARMRegisterInfo.h
llvm/trunk/lib/Target/Alpha/AlphaRegisterInfo.h
llvm/trunk/lib/Target/Mips/MipsRegisterInfo.h
llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.h
llvm/trunk/lib/Target/Sparc/SparcRegisterInfo.h
Modified: llvm/trunk/include/llvm/CodeGen/LiveIntervalAnalysis.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/LiveIntervalAnalysis.h?rev=41597&r1=41596&r2=41597&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/LiveIntervalAnalysis.h (original)
+++ llvm/trunk/include/llvm/CodeGen/LiveIntervalAnalysis.h Thu Aug 30 00:52:20
2007
@@ -242,11 +242,13 @@
bool isReMaterializable(const LiveInterval &li, const VNInfo *ValNo,
MachineInstr *MI);
- /// tryFoldMemoryOperand - Attempts to fold a spill / restore from slot
- /// to reg into ith operand of specified MI. If it is successul, MI is
- /// updated with the newly created MI and returns true.
- bool tryFoldMemoryOperand(MachineInstr* &MI, VirtRegMap &vrm, unsigned
index,
- unsigned i, int slot, unsigned reg);
+ /// tryFoldMemoryOperand - Attempts to fold either a spill / restore from
+ /// slot / to reg or any rematerialized load into ith operand of specified
+ /// MI. If it is successul, MI is updated with the newly created MI and
+ /// returns true.
+ bool tryFoldMemoryOperand(MachineInstr* &MI, VirtRegMap &vrm,
+ unsigned index, unsigned i, bool isSS,
+ MachineInstr *DefMI, int slot, unsigned reg);
static LiveInterval createInterval(unsigned Reg);
Modified: llvm/trunk/include/llvm/Target/MRegisterInfo.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Target/MRegisterInfo.h?rev=41597&r1=41596&r2=41597&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Target/MRegisterInfo.h (original)
+++ llvm/trunk/include/llvm/Target/MRegisterInfo.h Thu Aug 30 00:52:20 2007
@@ -521,6 +521,15 @@
return 0;
}
+ /// foldMemoryOperand - Same as the previous version except it allows folding
+ /// of any load and store from / to any address, not just from a specific
+ /// stack slot.
+ virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
+ unsigned OpNum,
+ MachineInstr* LoadMI) const {
+ return 0;
+ }
+
/// targetHandlesStackFrameRounding - Returns true if the target is
responsible
/// for rounding up the stack frame (probably at emitPrologue time).
virtual bool targetHandlesStackFrameRounding() const {
Modified: llvm/trunk/lib/Target/ARM/ARMRegisterInfo.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMRegisterInfo.h?rev=41597&r1=41596&r2=41597&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMRegisterInfo.h (original)
+++ llvm/trunk/lib/Target/ARM/ARMRegisterInfo.h Thu Aug 30 00:52:20 2007
@@ -66,6 +66,11 @@
MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
int FrameIndex) const;
+ MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
+ MachineInstr* LoadMI) const {
+ return 0;
+ }
+
const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
const TargetRegisterClass* const*
Modified: llvm/trunk/lib/Target/Alpha/AlphaRegisterInfo.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Alpha/AlphaRegisterInfo.h?rev=41597&r1=41596&r2=41597&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Alpha/AlphaRegisterInfo.h (original)
+++ llvm/trunk/lib/Target/Alpha/AlphaRegisterInfo.h Thu Aug 30 00:52:20 2007
@@ -41,6 +41,11 @@
MachineInstr* foldMemoryOperand(MachineInstr *MI, unsigned OpNum,
int FrameIndex) const;
+ MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
+ MachineInstr* LoadMI) const {
+ return 0;
+ }
+
void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const;
Modified: llvm/trunk/lib/Target/Mips/MipsRegisterInfo.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Mips/MipsRegisterInfo.h?rev=41597&r1=41596&r2=41597&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Mips/MipsRegisterInfo.h (original)
+++ llvm/trunk/lib/Target/Mips/MipsRegisterInfo.h Thu Aug 30 00:52:20 2007
@@ -48,6 +48,11 @@
MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
int FrameIndex) const;
+ MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
+ MachineInstr* LoadMI) const {
+ return 0;
+ }
+
void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
unsigned DestReg, unsigned SrcReg,
const TargetRegisterClass *RC) const;
Modified: llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.h?rev=41597&r1=41596&r2=41597&view=diff
==============================================================================
--- llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.h (original)
+++ llvm/trunk/lib/Target/PowerPC/PPCRegisterInfo.h Thu Aug 30 00:52:20 2007
@@ -57,6 +57,11 @@
virtual MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
int FrameIndex) const;
+ virtual MachineInstr* foldMemoryOperand(MachineInstr* MI, unsigned OpNum,
+ MachineInstr* LoadMI) const {
+ return 0;
+ }
+
const unsigned *getCalleeSavedRegs(const MachineFunction* MF = 0) const;
const TargetRegisterClass* const*
Modified: llvm/trunk/lib/Target/Sparc/SparcRegisterInfo.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/Sparc/SparcRegisterInfo.h?rev=41597&r1=41596&r2=41597&view=diff
==============================================================================
--- llvm/trunk/lib/Target/Sparc/SparcRegisterInfo.h (original)
+++ llvm/trunk/lib/Target/Sparc/SparcRegisterInfo.h Thu Aug 30 00:52:20 2007
@@ -51,6 +51,12 @@
unsigned OpNum,
int FrameIndex) const;
+ virtual MachineInstr* foldMemoryOperand(MachineInstr* MI,
+ unsigned OpNum,
+ MachineInstr* LoadMI) const {
+ return 0;
+ }
+
const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
const TargetRegisterClass* const* getCalleeSavedRegClasses(
_______________________________________________
llvm-commits mailing list
llvm-commits@cs.uiuc.edu
http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
