On Sat, 29 Aug 2020, sunil.k.pandey wrote: > On Linux/x86_64, > > dccbf1e2a6e544f71b4a5795f0c79015db019fc3 is the first bad commit > commit dccbf1e2a6e544f71b4a5795f0c79015db019fc3 > Author: Richard Biener <rguent...@suse.de> > Date: Mon Jul 6 16:26:50 2020 +0200 > > tree-optimization/96075 - fix bogus misalignment calculation > > caused > > FAIL: gcc.dg/vect/slp-46.c -flto -ffat-lto-objects scan-tree-dump-times vect > "vectorizing stmts using SLP" 2 > FAIL: gcc.dg/vect/slp-46.c scan-tree-dump-times vect "vectorizing stmts using > SLP" 2
It might be useful to point out that the commit in question added the testcase that "regressed" plus that you are using a non-standard configuration (x86 vectorization unfortunately is too fragmented to produce fully attributed or generic testcases that will pass with any configuration). So the appropriate report would be "FAIL: gcc.dg/vect/slp-46.c with -march=cascadelake" which isn't a regression. Richard.
