[Bug target/27077] [x86, 4.1] builtin strlen poor performance

2016-09-27 Thread var at schellong dot biz
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=27077 --- Comment #10 from Helmut Schellong --- (In reply to Thomas Koenig from comment #9) > Please see https://gcc.gnu.org/bugs/#need for the things that > are required for a bug report. > > Specifically, > > the preprocessed file (*.i*) that

[Bug target/27077] [x86, 4.1] builtin strlen poor performance

2016-09-26 Thread var at schellong dot biz
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=27077 --- Comment #8 from Helmut Schellong --- Test case is a special measurement program. See assembler code below: strlen / repnz scasb clock_gettime gcc6 + gcc5 The exact gcc version is not critical. Each gcc that injects an intel string

[Bug target/27077] [x86, 4.1] builtin strlen poor performance

2016-09-26 Thread var at schellong dot biz
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=27077 Helmut Schellong changed: What|Removed |Added CC||var at schellong dot biz --- Comment