diff options
Diffstat (limited to 'gcc/c-family')
| -rw-r--r-- | gcc/c-family/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/c-family/c-common.c | 18 | ||||
| -rw-r--r-- | gcc/c-family/c.opt | 2 |
3 files changed, 19 insertions, 7 deletions
diff --git a/gcc/c-family/ChangeLog b/gcc/c-family/ChangeLog index e534368..0f0a370 100644 --- a/gcc/c-family/ChangeLog +++ b/gcc/c-family/ChangeLog @@ -1,3 +1,9 @@ +2017-12-16 Martin Sebor <msebor@redhat.com> + + PR tree-optimization/78918 + * c-common.c (check_function_restrict): Avoid checking built-ins. + * c.opt (-Wrestrict): Include in -Wall. + 2017-12-15 Jakub Jelinek <jakub@redhat.com> * c-attribs.c (c_common_attribute_table, diff --git a/gcc/c-family/c-common.c b/gcc/c-family/c-common.c index 6a343a3..197a71f 100644 --- a/gcc/c-family/c-common.c +++ b/gcc/c-family/c-common.c @@ -5319,14 +5319,20 @@ check_function_restrict (const_tree fndecl, const_tree fntype, int nargs, tree *argarray) { int i; - tree parms; + tree parms = TYPE_ARG_TYPES (fntype); if (fndecl - && TREE_CODE (fndecl) == FUNCTION_DECL - && DECL_ARGUMENTS (fndecl)) - parms = DECL_ARGUMENTS (fndecl); - else - parms = TYPE_ARG_TYPES (fntype); + && TREE_CODE (fndecl) == FUNCTION_DECL) + { + /* Skip checking built-ins here. They are checked in more + detail elsewhere. */ + if (DECL_BUILT_IN (fndecl) + && DECL_BUILT_IN_CLASS (fndecl) == BUILT_IN_NORMAL) + return; + + if (DECL_ARGUMENTS (fndecl)) + parms = DECL_ARGUMENTS (fndecl); + } for (i = 0; i < nargs; i++) TREE_VISITED (argarray[i]) = 0; diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt index 31b50ee..5b929d9 100644 --- a/gcc/c-family/c.opt +++ b/gcc/c-family/c.opt @@ -1178,7 +1178,7 @@ C ObjC Var(warn_duplicate_decl_specifier) Warning LangEnabledBy(C ObjC,Wall) Warn when a declaration has duplicate const, volatile, restrict or _Atomic specifier. Wrestrict -C ObjC C++ ObjC++ Var(warn_restrict) Warning LangEnabledBy(C ObjC C++ ObjC++) +C ObjC C++ ObjC++ Var(warn_restrict) Warning LangEnabledBy(C ObjC C++ ObjC++, Wall) Warn when an argument passed to a restrict-qualified parameter aliases with another argument. |