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| author | Richard Biener <rguenther@suse.de> | 2017-06-19 15:08:02 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2017-06-19 15:08:02 +0000 |
| commit | 21e4389f5029128cf6dc6377ffe678711e91aee4 (patch) | |
| tree | 3ab81d46627f403103ddc8ace8b2281cd7498774 /gcc/tree-cfgcleanup.c | |
| parent | 343ae898b17490d15c98f711ffcb04c88cca9235 (diff) | |
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re PR tree-optimization/81118 (ice in remove_redundant_iv_tests)
2017-06-19 Richard Biener <rguenther@suse.de>
PR middle-end/81118
* tree-cfgcleanup.c (cleanup_tree_cfg_noloop): Clear niter
estimates if we changed anything.
* gcc.dg/torture/pr81118.c: New testcase.
From-SVN: r249374
Diffstat (limited to 'gcc/tree-cfgcleanup.c')
| -rw-r--r-- | gcc/tree-cfgcleanup.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/gcc/tree-cfgcleanup.c b/gcc/tree-cfgcleanup.c index 4cab592..8bb5e23 100644 --- a/gcc/tree-cfgcleanup.c +++ b/gcc/tree-cfgcleanup.c @@ -839,7 +839,12 @@ cleanup_tree_cfg_noloop (void) timevar_pop (TV_TREE_CLEANUP_CFG); if (changed && current_loops) - loops_state_set (LOOPS_NEED_FIXUP); + { + /* Removing edges and/or blocks may make recorded bounds refer + to stale GIMPLE stmts now, so clear them. */ + free_numbers_of_iterations_estimates (cfun); + loops_state_set (LOOPS_NEED_FIXUP); + } return changed; } |