diff options
| author | Dan Gohman <gohman@apple.com> | 2008-12-03 18:11:40 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-12-03 18:11:40 +0000 |
| commit | 8cf77137533f1d83f9ea0085b5ca6d241f4bab9a (patch) | |
| tree | aadb142b80dd67a30351a7b587b0f20c218f896a /lib/Target | |
| parent | 3eda88ed9f4c84092921f9366298ab11c951fc85 (diff) | |
Extend X86's addFrameReference to add a MachineMemOperand for
the frame reference. This will help post-RA scheduling determine
that spills to distinct stack slots are independent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60486 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/X86/X86InstrBuilder.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/lib/Target/X86/X86InstrBuilder.h b/lib/Target/X86/X86InstrBuilder.h index 87c63421bc..74f9e05ffe 100644 --- a/lib/Target/X86/X86InstrBuilder.h +++ b/lib/Target/X86/X86InstrBuilder.h @@ -24,7 +24,9 @@ #ifndef X86INSTRBUILDER_H #define X86INSTRBUILDER_H +#include "llvm/CodeGen/MachineFrameInfo.h" #include "llvm/CodeGen/MachineInstrBuilder.h" +#include "llvm/CodeGen/PseudoSourceValue.h" namespace llvm { @@ -109,7 +111,22 @@ inline const MachineInstrBuilder &addFullAddress(const MachineInstrBuilder &MIB, /// inline const MachineInstrBuilder & addFrameReference(const MachineInstrBuilder &MIB, int FI, int Offset = 0) { - return MIB.addFrameIndex(FI).addImm(1).addReg(0).addImm(Offset); + MachineInstr *MI = MIB; + MachineFunction &MF = *MI->getParent()->getParent(); + MachineFrameInfo &MFI = *MF.getFrameInfo(); + const TargetInstrDesc &TID = MI->getDesc(); + unsigned Flags = 0; + if (TID.mayLoad()) + Flags |= MachineMemOperand::MOLoad; + if (TID.mayStore()) + Flags |= MachineMemOperand::MOStore; + MachineMemOperand MMO(PseudoSourceValue::getFixedStack(FI), + Flags, + MFI.getObjectOffset(FI) + Offset, + MFI.getObjectSize(FI), + MFI.getObjectAlignment(FI)); + return MIB.addFrameIndex(FI).addImm(1).addReg(0).addImm(Offset) + .addMemOperand(MMO); } /// addConstantPoolReference - This function is used to add a reference to the |