From ce6f08888905bb217b9a4cff8a0704e240ec5c46 Mon Sep 17 00:00:00 2001 From: Martin Jambor Date: Wed, 26 Sep 2018 13:58:18 +0200 Subject: [PR 87347] Prevent segfaults if TYPE_ARG_TYPES is NULL 2018-09-26 Martin Jambor PR c/87347 c/ * c-parser.c (warn_for_abs): Bail out if TYPE_ARG_TYPES is NULL. Fix comment. testsuite/ * gcc.dg/pr87347.c: New test. From-SVN: r264640 --- gcc/c/c-parser.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'gcc/c/c-parser.c') diff --git a/gcc/c/c-parser.c b/gcc/c/c-parser.c index 1766a25..1f173fc 100644 --- a/gcc/c/c-parser.c +++ b/gcc/c/c-parser.c @@ -9102,8 +9102,8 @@ sizeof_ptr_memacc_comptypes (tree type1, tree type2) } /* Warn for patterns where abs-like function appears to be used incorrectly, - gracely ignore any non-abs-like function. The warning location should be - LOC. FNDECL is the declaration of called function, it must be a + gracefully ignore any non-abs-like function. The warning location should + be LOC. FNDECL is the declaration of called function, it must be a BUILT_IN_NORMAL function. ARG is the first and only argument of the call. */ @@ -9223,6 +9223,9 @@ warn_for_abs (location_t loc, tree fndecl, tree arg) return; } + if (!TYPE_ARG_TYPES (TREE_TYPE (fndecl))) + return; + tree ftype = TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (fndecl))); if (TREE_CODE (atype) == COMPLEX_TYPE) { -- cgit v1.1