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Most of my programs contain loops that the LoopDeletion pass is unable to remove. It appears that the following code in LoopDeletion.cpp:152 is the culprit: ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); const SCEV *S = SE.getMaxBackedgeTakenCount(L); if (isa<SCEVCouldNotCompute>(S)) return Changed; So, LoopDeletion thinks my loops might be infinite so it does not delete them - even if they do not write to any of the function return values. Is there a way to flag a loop as non-infinite? Or will I need to create my own mod...

...drew Clinton wrote: > Most of my programs contain loops that the LoopDeletion pass is unable > to remove. It appears that the following code in LoopDeletion.cpp:152 > is the culprit: > > ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); > const SCEV *S = SE.getMaxBackedgeTakenCount(L); > if (isa<SCEVCouldNotCompute>(S)) > return Changed; > > So, LoopDeletion thinks my loops might be infinite so it does not delete > them - even if they do not write to any of the function return values. > Is there a way to flag a loop as non-infinite? Or will...

...ndrew Clinton wrote: > Most of my programs contain loops that the LoopDeletion pass is unable > to remove. It appears that the following code in LoopDeletion.cpp:152 > is the culprit: > > ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); > const SCEV *S = SE.getMaxBackedgeTakenCount(L); > if (isa<SCEVCouldNotCompute>(S)) > return Changed; > > So, LoopDeletion thinks my loops might be infinite so it does not delete > them - even if they do not write to any of the function return values. > Is there a way to flag a loop as non-infinite? Or will...

...t;> Most of my programs contain loops that the LoopDeletion pass is unable >> to remove. It appears that the following code in LoopDeletion.cpp:152 >> is the culprit: >> >> ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); >> const SCEV *S = SE.getMaxBackedgeTakenCount(L); >> if (isa<SCEVCouldNotCompute>(S)) >> return Changed; >> >> So, LoopDeletion thinks my loops might be infinite so it does not delete >> them - even if they do not write to any of the function return values. >> Is there a way to flag a loop as n...

...ams contain loops that the LoopDeletion pass is unable >>> to remove. It appears that the following code in LoopDeletion.cpp:152 >>> is the culprit: >>> >>> ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); >>> const SCEV *S = SE.getMaxBackedgeTakenCount(L); >>> if (isa<SCEVCouldNotCompute>(S)) >>> return Changed; >>> >>> So, LoopDeletion thinks my loops might be infinite so it does not delete >>> them - even if they do not write to any of the function return values. >>> Is there...

...> Most of my programs contain loops that the LoopDeletion pass is unable >> to remove. It appears that the following code in LoopDeletion.cpp:152 >> is the culprit: >> >> ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); >> const SCEV *S = SE.getMaxBackedgeTakenCount(L); >> if (isa<SCEVCouldNotCompute>(S)) >> return Changed; >> >> So, LoopDeletion thinks my loops might be infinite so it does not delete >> them - even if they do not write to any of the function return values. >> Is there a way to flag a loop as...

...the LoopDeletion pass is unable >>>> to remove. It appears that the following code in LoopDeletion.cpp:152 >>>> is the culprit: >>>> >>>> ScalarEvolution& SE = getAnalysis<ScalarEvolution>(); >>>> const SCEV *S = SE.getMaxBackedgeTakenCount(L); >>>> if (isa<SCEVCouldNotCompute>(S)) >>>> return Changed; >>>> >>>> So, LoopDeletion thinks my loops might be infinite so it does not delete >>>> them - even if they do not write to any of the function return values....