[Bug tree-optimization/69308] ifcombine joins together floating point expression with side effects

["rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69308

--- Comment #15 from Richard Biener <rguenth at gcc dot gnu.org> ---
Author: rguenth
Date: Thu Feb 11 13:27:14 2016
New Revision: 233341

URL: https://gcc.gnu.org/viewcvs?rev=233341&root=gcc&view=rev
Log:
2016-02-11  Richard Biener  <rguenther@suse.de>

        Backport from mainline
        2016-01-18  Richard Biener  <rguenther@suse.de>

        PR middle-end/69308
        * gimple.c (gimple_could_trap_p_1): Handle GIMPLE_COND.

        2016-02-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69574
        * tree-chrec.c (hide_evolution_in_other_loops_than_loop): Instead
        of asserting return chrec_dont_know.

        * gcc.dg/torture/pr69574.c: New testcase.

        2016-02-01  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69579
        * tree-ssa-loop-ivcanon.c (propagate_constants_for_unrolling):
        Do not propagate through abnormal PHI results.

        * gcc.dg/setjmp-6.c: New testcase.

        2016-02-02  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69606
        * tree-ssa-math-opts.c (bswap_replace): Clear flow sensitive
        info on the result before moving a stmt.

        * gcc.dg/torture/pr69606.c: New testcase.

        2016-02-09  Richard Biener  <rguenther@suse.de>

        PR tree-optimization/69715
        * tree-ssa.c (execute_update_addresses_taken): Mark non-decl
        LHS on calls as non-rewritable.

        * gcc.dg/torture/pr69715.c: New testcase.

Added:
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/setjmp-6.c
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr69574.c
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr69606.c
    branches/gcc-5-branch/gcc/testsuite/gcc.dg/torture/pr69715.c
Modified:
    branches/gcc-5-branch/gcc/ChangeLog
    branches/gcc-5-branch/gcc/gimple.c
    branches/gcc-5-branch/gcc/testsuite/ChangeLog
    branches/gcc-5-branch/gcc/tree-chrec.c
    branches/gcc-5-branch/gcc/tree-ssa-loop-ivcanon.c
    branches/gcc-5-branch/gcc/tree-ssa-math-opts.c
    branches/gcc-5-branch/gcc/tree-ssa.c