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| author | Jakub Jelinek <jakub@redhat.com> | 2000-11-09 10:07:44 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2000-11-09 10:07:44 +0100 |
| commit | 2dee4af12b1f2a1262a88bdfa40e5a9db5374663 (patch) | |
| tree | 7e4c441f58d15d9c8077a944d506d9f9d2da8ba7 /gcc/c-common.c | |
| parent | 54d87db8696d7dd6307ba7f5e54ec27a22d42348 (diff) | |
| download | gcc-2dee4af12b1f2a1262a88bdfa40e5a9db5374663.zip gcc-2dee4af12b1f2a1262a88bdfa40e5a9db5374663.tar.gz gcc-2dee4af12b1f2a1262a88bdfa40e5a9db5374663.tar.bz2 | |
builtins.c (c_strlen): Use TREE_STRING_LENGTH - 1 for max.
* builtins.c (c_strlen): Use TREE_STRING_LENGTH - 1 for max.
(c_getstr): New function.
(expand_builtin_strstr): Do nothing if -fcheck-memory-usage.
If both arguments are constant string, optimize out.
(expand_builtin_strchr, expand_builtin_strrchr): New functions.
(expand_builtin_strpbrk): Use c_getstr, do nothing if
-fcheck-memory-usage.
(expand_builtin_fputs): Likewise.
(expand_builtin_strcmp): Add MODE argument.
Use even if !HAVE_cmpstrsi.
Optimize the case when both arguments are constant strings.
(expand_builtin): Adjust expand_builtin_strcmp caller.
Call expand_builtin_strchr and expand_builtin_strrchr.
* c-common.c (c_common_nodes_and_builtins): Add strchr and strrchr
builtins.
* builtins.def (BUILT_IN_STRRCHR): Add.
* gcc.c-torture/execute/string-opt-1.c: Add test for strstr
with both arguments constant strings.
* gcc.c-torture/execute/string-opt-3.c: New test.
* gcc.c-torture/execute/string-opt-4.c: New test.
* gcc.c-torture/execute/string-opt-5.c: New test.
From-SVN: r37338
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index 247145c..0482a83 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -5179,6 +5179,8 @@ c_common_nodes_and_builtins () built_in_decls[BUILT_IN_STRCHR] = builtin_function ("__builtin_strchr", string_ftype_string_int, BUILT_IN_STRCHR, BUILT_IN_NORMAL, "strchr"); + builtin_function ("__builtin_strrchr", string_ftype_string_int, + BUILT_IN_STRRCHR, BUILT_IN_NORMAL, "strrchr"); builtin_function ("__builtin_strcpy", string_ftype_ptr_ptr, BUILT_IN_STRCPY, BUILT_IN_NORMAL, "strcpy"); builtin_function ("__builtin_strlen", strlen_ftype, @@ -5249,6 +5251,10 @@ c_common_nodes_and_builtins () BUILT_IN_NORMAL, NULL_PTR); builtin_function ("strstr", string_ftype_string_string, BUILT_IN_STRSTR, BUILT_IN_NORMAL, NULL_PTR); + builtin_function ("strchr", string_ftype_string_int, BUILT_IN_STRCHR, + BUILT_IN_NORMAL, NULL_PTR); + builtin_function ("strrchr", string_ftype_string_int, BUILT_IN_STRRCHR, + BUILT_IN_NORMAL, NULL_PTR); builtin_function ("strpbrk", string_ftype_string_string, BUILT_IN_STRPBRK, BUILT_IN_NORMAL, NULL_PTR); builtin_function ("strcpy", string_ftype_ptr_ptr, BUILT_IN_STRCPY, |