Displaying 2 results from an estimated 2 matches for "vectorizeonlywhenforced".
2019 May 13
2
Is it possible to reproduce the result of opt -O3 manually?
...unsigned LicmMssaNoAccForPromotionCap) {
return new LegacyLICMPass(LicmMssaOptCap, LicmMssaNoAccForPromotionCap);
}
or
Pass *createLoopVectorizePass() { return new LoopVectorize(); }
Pass *createLoopVectorizePass(bool InterleaveOnlyWhenForced,
bool VectorizeOnlyWhenForced) {
return new LoopVectorize(InterleaveOnlyWhenForced,
VectorizeOnlyWhenForced);
}
When we give pass names, opt calls the default constructor (eg:
LoopVectorize()) whereas when we give O3, it can call a different version.
You can check in PassManagerBuilder.cpp (populateModulePassManager,
populate...
2019 May 09
2
Is it possible to reproduce the result of opt -O3 manually?
Dear developers,
I am trying to reproduce the results of applying opt -O3 to a source file
in the form of LLVM IR. I want to get the same IR by manually ordering the
passes used by O3 and passing them to opt.
To illustrate what I am doing on an example, as an input I use linpack
benchmark from the LLVM test suite[1]:
1. First I produce the intermediate representation using clang:
clang -O3