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| author | Richard Biener <rguenther@suse.de> | 2013-05-06 11:27:29 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2013-05-06 11:27:29 +0000 |
| commit | 0107dca2adf82db79c54d6da9707035533d474d6 (patch) | |
| tree | 08393bb2ffe3daf1347d560e6951600839f91db7 /gcc/tree-cfgcleanup.c | |
| parent | e5123d087ed24066c03c97c92a15d255c8d318dd (diff) | |
| download | gcc-0107dca2adf82db79c54d6da9707035533d474d6.zip gcc-0107dca2adf82db79c54d6da9707035533d474d6.tar.gz gcc-0107dca2adf82db79c54d6da9707035533d474d6.tar.bz2 | |
re PR middle-end/57147 (setjmp call and if body wrongly elided (function runs off early end))
2013-05-06 Richard Biener <rguenther@suse.de>
PR middle-end/57147
* tree-cfg.c (gimple_purge_dead_abnormal_call_edges): If
the edge is also fallthru, preserve it and just clear the
abnormal flag.
* tree-cfgcleanup.c (remove_fallthru_edge): If the edge is
also complex, preserve that and just clear the fallthru flag.
* tree-inline.c (update_ssa_across_abnormal_edges): Also
update virtual operands.
* gcc.dg/torture/pr57147-1.c: New testcase.
* gcc.dg/torture/pr57147-2.c: Likewise.
* gcc.dg/torture/pr57147-3.c: Likewise.
From-SVN: r198625
Diffstat (limited to 'gcc/tree-cfgcleanup.c')
| -rw-r--r-- | gcc/tree-cfgcleanup.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/tree-cfgcleanup.c b/gcc/tree-cfgcleanup.c index 3c69a7d..9b314f7 100644 --- a/gcc/tree-cfgcleanup.c +++ b/gcc/tree-cfgcleanup.c @@ -57,7 +57,10 @@ remove_fallthru_edge (vec<edge, va_gc> *ev) FOR_EACH_EDGE (e, ei, ev) if ((e->flags & EDGE_FALLTHRU) != 0) { - remove_edge_and_dominated_blocks (e); + if (e->flags & EDGE_COMPLEX) + e->flags &= ~EDGE_FALLTHRU; + else + remove_edge_and_dominated_blocks (e); return true; } return false; |