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[RyuJIT/armel] Fix PutArgReg BuildRefPositions #13332

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Aug 11, 2017
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[RyuJIT/armel] Fix PutArgReg BuildRefPositions #13332

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14 changes: 2 additions & 12 deletions src/jit/lsra.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3990,22 +3990,12 @@ void LinearScan::buildRefPositionsForNode(GenTree* tree,

regMaskTP candidates = getUseCandidates(useNode);
#ifdef _TARGET_ARM_
// If oper is GT_PUTARG_SPLIT, set bits in useCandidates must be in sequential order.
if (useNode->OperIsPutArgSplit())
if (useNode->OperIsPutArgSplit() || (compiler->opts.compUseSoftFP && useNode->OperIsPutArgReg()))
{
// get i-th candidate
// get i-th candidate, set bits in useCandidates must be in sequential order.
candidates = genFindLowestReg(candidates & ~currCandidates);
currCandidates |= candidates;
}
#ifdef ARM_SOFTFP
// If oper is GT_PUTARG_REG, set bits in useCandidates must be in sequential order.
if (useNode->OperIsMultiRegOp())
{
regMaskTP candidate = genFindLowestReg(candidates);
useNode->gtLsraInfo.setSrcCandidates(this, candidates & ~candidate);
candidates = candidate;
}
#endif // ARM_SOFTFP
#endif // _TARGET_ARM_

assert((candidates & allRegs(i->registerType)) != 0);
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