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| author | Jan Hubicka <jh@suse.cz> | 2012-11-02 20:19:15 +0100 |
|---|---|---|
| committer | Jan Hubicka <hubicka@gcc.gnu.org> | 2012-11-02 19:19:15 +0000 |
| commit | f481cd492ab60e2e8bdbbf4e5d0b4745b38b236d (patch) | |
| tree | 0c4c2726c2bba5fd6d40290ce905447cc4decec4 /gcc | |
| parent | 2749bf296976b55509d3c199c913d018d1680f3e (diff) | |
| download | gcc-f481cd492ab60e2e8bdbbf4e5d0b4745b38b236d.zip gcc-f481cd492ab60e2e8bdbbf4e5d0b4745b38b236d.tar.gz gcc-f481cd492ab60e2e8bdbbf4e5d0b4745b38b236d.tar.bz2 | |
* predict.c (predict_loops): Do not predict infinite loops.
From-SVN: r193101
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/predict.c | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 793c493..0f75280 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2012-11-02 Jan Hubicka <jh@suse.cz> + * predict.c (predict_loops): Do not predict infinite loops. + +2012-11-02 Jan Hubicka <jh@suse.cz> + PR middle-end/55079 * tree-ssa-loop-niter.c (number_of_iterations_exit): Update MAX field if NITER was folded to contant. diff --git a/gcc/predict.c b/gcc/predict.c index 9fc3e71..d27e043 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -1403,6 +1403,11 @@ predict_loops (void) exits = get_loop_exit_edges (loop); n_exits = VEC_length (edge, exits); + if (!n_exits) + { + VEC_free (edge, heap, exits); + continue; + } FOR_EACH_VEC_ELT (edge, exits, j, ex) { |