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[Bug tree-optimization/61194] [4.9/4.10 Regression] vectorization failed with "bit-precision arithmetic not supported" even if conversion to int is requested
- From: "vincenzo.innocente at cern dot ch" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 16 May 2014 12:20:16 +0000
- Subject: [Bug tree-optimization/61194] [4.9/4.10 Regression] vectorization failed with "bit-precision arithmetic not supported" even if conversion to int is requested
- Auto-submitted: auto-generated
- References: <bug-61194-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61194
--- Comment #13 from vincenzo Innocente <vincenzo.innocente at cern dot ch> ---
I confirm that with last patch the regression is gone also in a more complex
actual application I had.
The regression concerns only comment 2 and 3.
all the other cases in comment 1 were various attempt of mine to see if
anything was changed that allowed vectorization using a different syntax.
I am happy that now they all vectorize (but bar2...)
when, in 2011, I wrote the original test case, I introduced the int vector to
make it vectorize (most probably I also submitted a bug report on the subject)