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| author | Richard Biener <rguenther@suse.de> | 2016-10-05 11:58:25 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2016-10-05 11:58:25 +0000 |
| commit | 496326bcc14616ae90da47db7a7f203d79f02923 (patch) | |
| tree | 398d851c0a5429f4aa70307773b6ad100313b73e /gcc/genmatch.c | |
| parent | 39bb7d015297586294c6416a4db78b50345d2a46 (diff) | |
| download | gcc-496326bcc14616ae90da47db7a7f203d79f02923.zip gcc-496326bcc14616ae90da47db7a7f203d79f02923.tar.gz gcc-496326bcc14616ae90da47db7a7f203d79f02923.tar.bz2 | |
re PR middle-end/77863 (genmatch segfault on a wrong usage of an for operator)
2016-10-05 Richard Biener <rguenther@suse.de>
PR middle-end/77863
* genmatch.c (capture_info::walk_c_expr): Diagnose unknown
capture ids in c-exprs.
From-SVN: r240777
Diffstat (limited to 'gcc/genmatch.c')
| -rw-r--r-- | gcc/genmatch.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/genmatch.c b/gcc/genmatch.c index 5883ba3..de03d34 100644 --- a/gcc/genmatch.c +++ b/gcc/genmatch.c @@ -2194,8 +2194,10 @@ capture_info::walk_c_expr (c_expr *e) id = (const char *)n->val.str.text; else id = (const char *)CPP_HASHNODE (n->val.node.node)->ident.str; - unsigned where = *e->capture_ids->get(id); - info[info[where].same_as].force_no_side_effects_p = true; + unsigned *where = e->capture_ids->get(id); + if (! where) + fatal_at (n, "unknown capture id '%s'", id); + info[info[*where].same_as].force_no_side_effects_p = true; if (verbose >= 1 && !gimple) warning_at (t, "capture escapes"); |