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| author | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-02 19:19:15 +0000 |
|---|---|---|
| committer | hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4> | 2012-11-02 19:19:15 +0000 |
| commit | 5d8653611d40662f3ab728f64ddc7c692c5906f6 (patch) | |
| tree | 0c4c2726c2bba5fd6d40290ce905447cc4decec4 | |
| parent | 88fa2d281161143bcd2be3a6073c7e5b6585700c (diff) | |
| download | gcc-5d8653611d40662f3ab728f64ddc7c692c5906f6.tar.gz | |
* predict.c (predict_loops): Do not predict infinite loops.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@193101 138bc75d-0d04-0410-961f-82ee72b054a4
| -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 793c4933f79..0f752802aeb 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 9fc3e71e7b2..d27e04316ca 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) { |