[Bug tree-optimization/71347] [7 regression] Performance drop after r235513 on x86-64 in 32-bit mode.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71347 amker at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED

[Bug tree-optimization/71347] [7 regression] Performance drop after r235513 on x86-64 in 32-bit mode.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71347 --- Comment #6 from amker at gcc dot gnu.org --- Author: amker Date: Fri Jul 15 08:53:48 2016 New Revision: 238366 URL: https://gcc.gnu.org/viewcvs?rev=238366=gcc=rev Log: gcc/testsuite PR tree-optimization/71347 *

[Bug tree-optimization/71347] [7 regression] Performance drop after r235513 on x86-64 in 32-bit mode.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71347 --- Comment #5 from amker at gcc dot gnu.org --- (In reply to Rainer Orth from comment #4) > Created attachment 38744 [details] > pr71347.c.214t.optimized > > The new testcase FAILs on sparc*-sun-solaris2.* (both 32 and 64-bit): > > FAIL:

[Bug tree-optimization/71347] [7 regression] Performance drop after r235513 on x86-64 in 32-bit mode.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71347 Rainer Orth changed: What|Removed |Added CC||ro at gcc dot gnu.org --- Comment #4 from

[Bug tree-optimization/71347] [7 regression] Performance drop after r235513 on x86-64 in 32-bit mode.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71347 --- Comment #3 from amker at gcc dot gnu.org --- Author: amker Date: Fri Jun 17 09:26:05 2016 New Revision: 237552 URL: https://gcc.gnu.org/viewcvs?rev=237552=gcc=rev Log: PR tree-optimization/71347 * tree-ssa-loop-ivopts.c

[Bug tree-optimization/71347] [7 regression] Performance drop after r235513 on x86-64 in 32-bit mode.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71347 --- Comment #2 from amker at gcc dot gnu.org --- Thanks for reporting this. The dump after IVOPT now is: : # prephitmp_21 = PHI # prephitmp_23 = PHI # ivtmp.17_16 = PHI

[Bug tree-optimization/71347] [7 regression] Performance drop after r235513 on x86-64 in 32-bit mode.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71347 Richard Biener changed: What|Removed |Added CC||amker.cheng at gmail dot com Target

[Bug tree-optimization/71347] [7 regression] Performance drop after r235513 on x86-64 in 32-bit mode.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71347 --- Comment #1 from Yuri Rumyantsev --- Created attachment 38600 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38600=edit test-case to reproduce Need to be compiled with -O2 -m32 -march=slm -ffast-math options on x64-64.