[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390

--- Comment #28 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Wed Apr 12 18:09:47 2017
New Revision: 246882

URL: https://gcc.gnu.org/viewcvs?rev=246882&root=gcc&view=rev
Log:
        PR tree-optimization/79390
        * optabs.c (emit_conditional_move): If the preferred op2/op3 operand
        order does not result in usable sequence, retry with reversed operand
        order.

        * gcc.target/i386/pr70465-2.c: Xfail the scan-assembler-not test.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/optabs.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.target/i386/pr70465-2.c