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Fix fallout from RegInfo => FrameLowering refactoring on MSP430.

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Patch by Job Noorman!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166108 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2012-10-17 17:37:11 +00:00
parent fdd6fa89b9
commit e4b33a115b
5 changed files with 32 additions and 16 deletions
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14
lib/Target/MSP430/MSP430FrameLowering.cpp
View File

@ -221,3 +221,17 @@ MSP430FrameLowering::restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
return true;
}
void
MSP430FrameLowering::processFunctionBeforeFrameFinalized(MachineFunction &MF)
const {
const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
// Create a frame entry for the FPW register that must be saved.
if (TFI->hasFP(MF)) {
int FrameIdx = MF.getFrameInfo()->CreateFixedObject(2, -4, true);
(void)FrameIdx;
assert(FrameIdx == MF.getFrameInfo()->getObjectIndexBegin() &&
"Slot for FPW register must be last in order to be found!");
}
}

1
lib/Target/MSP430/MSP430FrameLowering.h
View File

@ -46,6 +46,7 @@ public:
bool hasFP(const MachineFunction &MF) const;
bool hasReservedCallFrame(const MachineFunction &MF) const;
void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
};
} // End llvm namespace

14
lib/Target/MSP430/MSP430RegisterInfo.cpp
View File

@ -220,20 +220,6 @@ MSP430RegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II,
MI.getOperand(i+1).ChangeToImmediate(Offset);
}
void
MSP430RegisterInfo::processFunctionBeforeFrameFinalized(MachineFunction &MF)
const {
const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
// Create a frame entry for the FPW register that must be saved.
if (TFI->hasFP(MF)) {
int FrameIdx = MF.getFrameInfo()->CreateFixedObject(2, -4, true);
(void)FrameIdx;
assert(FrameIdx == MF.getFrameInfo()->getObjectIndexBegin() &&
"Slot for FPW register must be last in order to be found!");
}
}
unsigned MSP430RegisterInfo::getFrameRegister(const MachineFunction &MF) const {
const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();

2
lib/Target/MSP430/MSP430RegisterInfo.h
View File

@ -49,8 +49,6 @@ public:
void eliminateFrameIndex(MachineBasicBlock::iterator II,
int SPAdj, RegScavenger *RS = NULL) const;
void processFunctionBeforeFrameFinalized(MachineFunction &MF) const;
// Debug information queries.
unsigned getFrameRegister(const MachineFunction &MF) const;
};

17
test/CodeGen/MSP430/fp.ll Normal file
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@ -0,0 +1,17 @@
; RUN: llc -O0 -disable-fp-elim < %s | FileCheck %s
target datalayout = "e-p:16:16:16-i8:8:8-i16:16:16-i32:16:32-n8:16"
target triple = "msp430---elf"
define void @fp() nounwind {
entry:
; CHECK: fp:
; CHECK: push.w r4
; CHECK: mov.w r1, r4
; CHECK: sub.w #2, r1
%i = alloca i16, align 2
; CHECK: mov.w #0, -2(r4)
store i16 0, i16* %i, align 2
; CHECK: pop.w r4
ret void
}