[Bug middle-end/29947] OpenMP parallel for fails for reversed loop range

["jakub at gcc dot gnu dot org"]

------- Comment #3 from jakub at gcc dot gnu dot org  2006-12-04 10:30 -------
Subject: Bug 29947

Author: jakub
Date: Mon Dec  4 10:30:11 2006
New Revision: 119486

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=119486
Log:
        PR libgomp/29947
        * omp-low.c (expand_omp_for_static_nochunk,
        expand_omp_for_static_chunk): Do all arithmetics in signed rather than
        unsigned type.

        * loop.c (gomp_loop_init): Make parameters signed.  Set ws->end to
        start if there shouldn't be any loop iterations.
        (gomp_loop_ordered_static_start): Remove start == end test.
        * testsuite/libgomp.c/pr29947-1.c: New test.
        * testsuite/libgomp.c/pr29947-2.c: New test.

Added:
    branches/gcc-4_2-branch/libgomp/testsuite/libgomp.c/pr29947-1.c
    branches/gcc-4_2-branch/libgomp/testsuite/libgomp.c/pr29947-2.c
Modified:
    branches/gcc-4_2-branch/gcc/ChangeLog
    branches/gcc-4_2-branch/gcc/omp-low.c
    branches/gcc-4_2-branch/libgomp/ChangeLog
    branches/gcc-4_2-branch/libgomp/loop.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29947