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| author | Richard Guenther <rguenther@suse.de> | 2009-01-18 15:51:12 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2009-01-18 15:51:12 +0000 |
| commit | 890065bfe4a9d3367568a2f5a9a12b6289f377d0 (patch) | |
| tree | c3c88c9e03ec958f75cbb15702d98af42d7408c2 /gcc/tree-ssa-sccvn.h | |
| parent | a729d731c8a6dcd45760f1bd7bc5d5379ae49d2c (diff) | |
| download | gcc-890065bfe4a9d3367568a2f5a9a12b6289f377d0.tar.gz | |
re PR tree-optimization/38819 (trapping expression wrongly hoisted out of loop)
2009-01-18 Richard Guenther <rguenther@suse.de>
PR tree-optimization/38819
* tree-flow.h (operation_could_trap_helper_p): Declare.
* tree-eh.c (operation_could_trap_helper_p): Export.
* tree-ssa-sccvn.h (vn_nary_may_trap): Declare.
* tree-ssa-sccvn.c (vn_nary_may_trap): New function.
* tree-ssa-pre.c (insert_into_preds_of_block): Check if we
are about to insert a possibly trapping instruction and fail
in this case.
* gcc.c-torture/execute/pr38819.c: New testcase.
From-SVN: r143485
Diffstat (limited to 'gcc/tree-ssa-sccvn.h')
| -rw-r--r-- | gcc/tree-ssa-sccvn.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree-ssa-sccvn.h b/gcc/tree-ssa-sccvn.h index cc74acce10d..74f43c3df2e 100644 --- a/gcc/tree-ssa-sccvn.h +++ b/gcc/tree-ssa-sccvn.h @@ -188,6 +188,7 @@ tree vn_phi_lookup (gimple); hashval_t vn_nary_op_compute_hash (const vn_nary_op_t); int vn_nary_op_eq (const void *, const void *); +bool vn_nary_may_trap (vn_nary_op_t); hashval_t vn_reference_compute_hash (const vn_reference_t); int vn_reference_eq (const void *, const void *); unsigned int get_max_value_id (void); |