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[Bug tree-optimization/77445] [7 Regression] Performance drop after r239219 on coremark test
- From: "hubicka at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 02 Feb 2017 20:22:45 +0000
- Subject: [Bug tree-optimization/77445] [7 Regression] Performance drop after r239219 on coremark test
- Auto-submitted: auto-generated
- References: <bug-77445-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77445
--- Comment #24 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Thu Feb 2 20:22:13 2017
New Revision: 245135
URL: https://gcc.gnu.org/viewcvs?rev=245135&root=gcc&view=rev
Log:
PR middle-end/77445
* gcc.dg/tree-ssa/pr77445-2.c: Update testcase to check that all
threading is done.
* tree-ssa-threadbackward.c (profitable_jump_thread_path): Dump
statistics of the analyzed path; allow threading for speed when
any of BBs along the path are optimized for speed.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/tree-ssa/pr77445-2.c
trunk/gcc/tree-ssa-threadbackward.c