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2011 Nov 14
0
[LLVMdev] How to make Polly ignore some non-affine memory accesses
...90ffa0, tempScop=@0x10190eb70, CurRegion=@0x10190eed0) at
/Users/Kariddi/Documents/Sviluppo/Tesi/llvm/tools/polly/lib/Analysis/ScopInfo.cpp:588
#5 0x0000000101a5bc08 in polly::ScopStmt::ScopStmt (this=0x10190ffa0,
parent=@0x10190fdf0, tempScop=@0x10190eb70, CurRegion=@0x10190eed0,
bb=@0x101905bd0, NestLoops=@0x7fff5fbfec20, Scatter=@0x7fff5fbfebe0)
at /Users/Kariddi/Documents/Sviluppo/Tesi/llvm/tools/polly/lib/Analysis/ScopInfo.cpp:716
#6 0x0000000101a5b86d in polly::ScopStmt::ScopStmt (this=0x10190ffa0,
parent=@0x10190fdf0, tempScop=@0x10190eb70, CurRegion=@0x10190eed0,
bb=@0x101905bd0, NestLoops=@...
2011 Nov 02
5
[LLVMdev] How to make Polly ignore some non-affine memory accesses
Mmm I found out a very strange behavior (to me) of the SCEV analysis
of the loop bound of the external loop I posted.
When in ScopDetection it gets the SCEV of the external loop bound in
the "isValidLoop()" function with:
const SCEV *LoopCount = SE->getBackedgeTakenCount(L);
It returns a SCEVCouldNotCompute, but if I change the "if" block
inside the loop from:
if