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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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15
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@@ -641,16 +641,17 @@ SDValue RegsForValue::getCopyFromRegs(SelectionDAG &DAG,
// If the source register was virtual and if we know something about it,
// add an assert node.
if (!TargetRegisterInfo::isVirtualRegister(Regs[Part+i]) ||
!RegisterVT.isInteger() || RegisterVT.isVector() ||
!FuncInfo.LiveOutRegInfo.inBounds(Regs[Part+i]))
!RegisterVT.isInteger() || RegisterVT.isVector())
continue;
const FunctionLoweringInfo::LiveOutInfo *LOI =
FuncInfo.GetLiveOutRegInfo(Regs[Part+i]);
if (!LOI)
continue;
const FunctionLoweringInfo::LiveOutInfo &LOI =
FuncInfo.LiveOutRegInfo[Regs[Part+i]];
unsigned RegSize = RegisterVT.getSizeInBits();
unsigned NumSignBits = LOI.NumSignBits;
unsigned NumZeroBits = LOI.KnownZero.countLeadingOnes();
unsigned NumSignBits = LOI->NumSignBits;
unsigned NumZeroBits = LOI->KnownZero.countLeadingOnes();
// FIXME: We capture more information than the dag can represent. For
// now, just use the tightest assertzext/assertsext possible.