[Bug c/81875] omp for loop optimized away

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81875

--- Comment #5 from Tom de Vries <vries at gcc dot gnu.org> ---
Author: vries
Date: Sun Dec 10 20:52:54 2017
New Revision: 255531

URL: https://gcc.gnu.org/viewcvs?rev=255531&root=gcc&view=rev
Log:
Backport "Fix condition folding in c_parser_omp_for_loop"

2017-12-10  Tom de Vries  <t...@codesourcery.com>

        backport from trunk:
        2017-09-16  Tom de Vries  <t...@codesourcery.com>

        PR c/81875
        * c-parser.c (c_parser_omp_for_loop): Fold only operands of cond, not
        cond itself.

        * testsuite/libgomp.c/pr81875.c: New test.

Added:
    branches/gcc-7-branch/libgomp/testsuite/libgomp.c/pr81875.c
Modified:
    branches/gcc-7-branch/gcc/c/ChangeLog
    branches/gcc-7-branch/gcc/c/c-parser.c
    branches/gcc-7-branch/libgomp/ChangeLog