diff options
| author | Martin Sebor <msebor@redhat.com> | 2018-06-18 16:32:59 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2018-06-18 10:32:59 -0600 |
| commit | 781ff3d80e88d7d0df019eb3e82ef2a3fb64429c (patch) | |
| tree | 01c31801fe48b1c21114b772785de9eefe119e7b /gcc/doc/extend.texi | |
| parent | 7314856c61938db90d66f4cead8e4df73ea5d3af (diff) | |
| download | gcc-781ff3d80e88d7d0df019eb3e82ef2a3fb64429c.zip gcc-781ff3d80e88d7d0df019eb3e82ef2a3fb64429c.tar.gz gcc-781ff3d80e88d7d0df019eb3e82ef2a3fb64429c.tar.bz2 | |
PR tree-optimization/81384 - built-in form of strnlen missing
gcc/ChangeLog:
PR tree-optimization/81384
* builtin-types.def (BT_FN_SIZE_CONST_STRING_SIZE): New.
* builtins.c (expand_builtin_strnlen): New function.
(expand_builtin): Call it.
(fold_builtin_n): Avoid setting TREE_NO_WARNING.
* builtins.def (BUILT_IN_STRNLEN): New.
* calls.c (maybe_warn_nonstring_arg): Handle BUILT_IN_STRNLEN.
Warn for bounds in excess of maximum object size.
* tree-ssa-strlen.c (maybe_set_strlen_range): Return tree representing
single-value ranges. Handle strnlen.
(handle_builtin_strlen): Handle strnlen.
(strlen_check_and_optimize_stmt): Same.
* doc/extend.texi (Other Builtins): Document strnlen.
gcc/testsuite/ChangeLog:
PR tree-optimization/81384
* gcc.c-torture/execute/builtins/lib/strnlen.c: New test.
* gcc.c-torture/execute/builtins/strnlen-lib.c: New test.
* gcc.c-torture/execute/builtins/strnlen.c: New test.
* gcc.dg/attr-nonstring-2.c: New test.
* gcc.dg/attr-nonstring-3.c: New test.
* gcc.dg/attr-nonstring-4.c: New test.
* gcc.dg/strlenopt-45.c: New test.
* gcc.dg/strlenopt.h (strnlen): Declare.
From-SVN: r261705
Diffstat (limited to 'gcc/doc/extend.texi')
| -rw-r--r-- | gcc/doc/extend.texi | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index ca96c08..cf88175 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -11255,6 +11255,7 @@ is called and the @var{flag} argument passed to it. @findex strncmp @findex strncpy @findex strndup +@findex strnlen @findex strpbrk @findex strrchr @findex strspn @@ -11338,8 +11339,8 @@ Outside strict ISO C mode (@option{-ansi}, @option{-std=c90}, @code{significandl}, @code{significand}, @code{sincosf}, @code{sincosl}, @code{sincos}, @code{stpcpy}, @code{stpncpy}, @code{strcasecmp}, @code{strdup}, @code{strfmon}, @code{strncasecmp}, -@code{strndup}, @code{toascii}, @code{y0f}, @code{y0l}, @code{y0}, -@code{y1f}, @code{y1l}, @code{y1}, @code{ynf}, @code{ynl} and +@code{strndup}, @code{strnlen}, @code{toascii}, @code{y0f}, @code{y0l}, +@code{y0}, @code{y1f}, @code{y1l}, @code{y1}, @code{ynf}, @code{ynl} and @code{yn} may be handled as built-in functions. All these functions have corresponding versions |