diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp b/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp index 6a63476fcc3..11ad4275f78 100644 --- a/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp +++ b/llvm/lib/Transforms/Scalar/InductiveRangeCheckElimination.cpp @@ -934,9 +934,9 @@ LoopStructure::parseLoopStructure(ScalarEvolution &SE, return None; } - if (!SE.isLoopEntryGuardedByCond( - &L, BoundPred, IndVarStart, - SE.getAddExpr(RightSCEV, Step))) { + if (!SE.isAvailableAtLoopEntry(RightSCEV, &L) || + !SE.isLoopEntryGuardedByCond(&L, BoundPred, IndVarStart, + SE.getAddExpr(RightSCEV, Step))) { FailureReason = "Induction variable start not bounded by upper limit"; return None; } @@ -948,7 +948,8 @@ LoopStructure::parseLoopStructure(ScalarEvolution &SE, RightValue = B.CreateAdd(RightValue, One); } } else { - if (!SE.isLoopEntryGuardedByCond(&L, BoundPred, IndVarStart, RightSCEV)) { + if (!SE.isAvailableAtLoopEntry(RightSCEV, &L) || + !SE.isLoopEntryGuardedByCond(&L, BoundPred, IndVarStart, RightSCEV)) { FailureReason = "Induction variable start not bounded by upper limit"; return None; } @@ -1014,9 +1015,10 @@ LoopStructure::parseLoopStructure(ScalarEvolution &SE, return None; } - if (!SE.isLoopEntryGuardedByCond( - &L, BoundPred, IndVarStart, - SE.getMinusSCEV(RightSCEV, SE.getOne(RightSCEV->getType())))) { + if (!SE.isAvailableAtLoopEntry(RightSCEV, &L) || + !SE.isLoopEntryGuardedByCond( + &L, BoundPred, IndVarStart, + SE.getMinusSCEV(RightSCEV, SE.getOne(RightSCEV->getType())))) { FailureReason = "Induction variable start not bounded by lower limit"; return None; } @@ -1028,7 +1030,8 @@ LoopStructure::parseLoopStructure(ScalarEvolution &SE, RightValue = B.CreateSub(RightValue, One); } } else { - if (!SE.isLoopEntryGuardedByCond(&L, BoundPred, IndVarStart, RightSCEV)) { + if (!SE.isAvailableAtLoopEntry(RightSCEV, &L) || + !SE.isLoopEntryGuardedByCond(&L, BoundPred, IndVarStart, RightSCEV)) { FailureReason = "Induction variable start not bounded by lower limit"; return None; } |
