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Refactor the LiveOutInfo interface into a few methods on FunctionLoweringInfo

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and make the actual map private.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126376 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Cameron Zwarich
2011-02-24 10:00:08 +00:00
parent 2dbe2850d0
commit e1497b9791
3 changed files with 35 additions and 20 deletions
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29
include/llvm/CodeGen/FunctionLoweringInfo.h
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@@ -105,9 +105,6 @@ public:
APInt KnownOne, KnownZero;
LiveOutInfo() : NumSignBits(0), KnownOne(1, 0), KnownZero(1, 0) {}
};
/// LiveOutRegInfo - Information about live out vregs.
IndexedMap<LiveOutInfo, VirtReg2IndexFunctor> LiveOutRegInfo;
/// PHINodesToUpdate - A list of phi instructions whose operand list will
/// be updated after processing the current basic block.
@@ -143,12 +140,38 @@ public:
return R = CreateRegs(V->getType());
}
/// GetLiveOutRegInfo - Gets LiveOutInfo for a register, returning NULL if the
/// register is a PHI destination and the PHI's LiveOutInfo is not valid.
const LiveOutInfo *GetLiveOutRegInfo(unsigned Reg) {
if (!LiveOutRegInfo.inBounds(Reg))
return NULL;
return &LiveOutRegInfo[Reg];
}
/// AddLiveOutRegInfo - Adds LiveOutInfo for a register.
void AddLiveOutRegInfo(unsigned Reg, unsigned NumSignBits,
const APInt &KnownZero, const APInt &KnownOne) {
// Only install this information if it tells us something.
if (NumSignBits == 1 && KnownZero == 0 && KnownOne == 0)
return;
LiveOutRegInfo.grow(Reg);
LiveOutInfo &LOI = LiveOutRegInfo[Reg];
LOI.NumSignBits = NumSignBits;
LOI.KnownOne = KnownOne;
LOI.KnownZero = KnownZero;
}
/// setByValArgumentFrameIndex - Record frame index for the byval
/// argument.
void setByValArgumentFrameIndex(const Argument *A, int FI);
/// getByValArgumentFrameIndex - Get frame index for the byval argument.
int getByValArgumentFrameIndex(const Argument *A);
private:
/// LiveOutRegInfo - Information about live out vregs.
IndexedMap<LiveOutInfo, VirtReg2IndexFunctor> LiveOutRegInfo;
};
/// AddCatchInfo - Extract the personality and type infos from an eh.selector