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| author | Tom de Vries <tom@codesourcery.com> | 2016-09-10 14:38:56 +0000 |
|---|---|---|
| committer | Tom de Vries <vries@gcc.gnu.org> | 2016-09-10 14:38:56 +0000 |
| commit | 5b28efbbf4abec11f013f4e76f5b55e2974737cf (patch) | |
| tree | 3c42070a9bfa92bf3029b74813fd60d1dd925ccc /gcc/gimplify.c | |
| parent | af4b8a523322d6100b52d41ad12d7b602d01331b (diff) | |
| download | gcc-5b28efbbf4abec11f013f4e76f5b55e2974737cf.zip gcc-5b28efbbf4abec11f013f4e76f5b55e2974737cf.tar.gz gcc-5b28efbbf4abec11f013f4e76f5b55e2974737cf.tar.bz2 | |
Make canonical_va_list_type more strict
2016-09-10 Tom de Vries <tom@codesourcery.com>
PR C/71602
* builtins.c (std_canonical_va_list_type): Strictly return non-null for
va_list type only.
* config/i386/i386.c (ix86_canonical_va_list_type): Same.
* gimplify.c (gimplify_va_arg_expr): Handle &va_list.
* c-common.c (build_va_arg): Handle more strict
targetm.canonical_va_list_type. Replace first argument type error with
assert.
* c-c++-common/va-arg-va-list-type.c: New test.
From-SVN: r240072
Diffstat (limited to 'gcc/gimplify.c')
| -rw-r--r-- | gcc/gimplify.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/gimplify.c b/gcc/gimplify.c index 2f0dd88..e378ed0 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -11990,6 +11990,11 @@ gimplify_va_arg_expr (tree *expr_p, gimple_seq *pre_p, if (have_va_type == error_mark_node) return GS_ERROR; have_va_type = targetm.canonical_va_list_type (have_va_type); + if (have_va_type == NULL_TREE + && TREE_CODE (valist) == ADDR_EXPR) + /* Handle 'Case 1: Not an array type' from c-common.c/build_va_arg. */ + have_va_type + = targetm.canonical_va_list_type (TREE_TYPE (TREE_TYPE (valist))); gcc_assert (have_va_type != NULL_TREE); /* Generate a diagnostic for requesting data of a type that cannot |