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Implement builtins for safe division: safe.sdiv.iN, safe.udiv.iN, safe.srem.iN,

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safe.urem.iN (iN = i8, i16, i32, or i64).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206732 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Zolotukhin
2014-04-21 05:33:09 +00:00
parent 29e0c0b57c
commit 7d5100d14e
9 changed files with 837 additions and 0 deletions
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lib/CodeGen/TargetLoweringBase.cpp
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@ -682,6 +682,7 @@ TargetLoweringBase::TargetLoweringBase(const TargetMachine &tm,
HasMultipleConditionRegisters = false;
IntDivIsCheap = false;
Pow2DivIsCheap = false;
DivIsWellDefined = false;
JumpIsExpensive = false;
PredictableSelectIsExpensive = false;
MaskAndBranchFoldingIsLegal = false;