diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-02-10 09:21:12 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-02-10 09:21:12 +0000 |
| commit | 5a80a58ba41e5ce149dbc3befd8054adfed2850c (patch) | |
| tree | adf80efb3b5c83bfd91ae5987fd3e83459dd7815 /gcc | |
| parent | ca82e0269f1462bbed6cafe019535bd5eae67837 (diff) | |
| download | gcc-5a80a58ba41e5ce149dbc3befd8054adfed2850c.tar.gz | |
* builtins.c (set_builtin_user_assembler_name): Also handle
ffs if int is smaller than word.
* gcc.dg/builtin-ffs-1.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@156646 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/builtins.c | 8 | ||||
| -rw-r--r-- | gcc/fortran/ChangeLog | 2 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/builtin-ffs-1.c | 17 |
5 files changed, 36 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9b8f4d5a969..f540be52122 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2010-02-10 Jakub Jelinek <jakub@redhat.com> + + * builtins.c (set_builtin_user_assembler_name): Also handle + ffs if int is smaller than word. + 2010-02-09 Vladimir Makarov <vmakarov@redhat.com> PR middle-end/42973 diff --git a/gcc/builtins.c b/gcc/builtins.c index b6fd1ead0fb..bfff2d54135 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -13594,6 +13594,14 @@ set_builtin_user_assembler_name (tree decl, const char *asmspec) case BUILT_IN_ABORT: abort_libfunc = set_user_assembler_libfunc ("abort", asmspec); break; + case BUILT_IN_FFS: + if (INT_TYPE_SIZE < BITS_PER_WORD) + { + set_user_assembler_libfunc ("ffs", asmspec); + set_optab_libfunc (ffs_optab, mode_for_size (INT_TYPE_SIZE, + MODE_INT, 0), "ffs"); + } + break; default: break; } diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog index 9505d268f12..a2a3c8b8df6 100644 --- a/gcc/fortran/ChangeLog +++ b/gcc/fortran/ChangeLog @@ -1,4 +1,4 @@ -2010-02-09 Jerry DeLisle <jvdelisle@gcc.gnu.org> +2010-02-09 Jerry DeLisle <jvdelisle@gcc.gnu.org> PR fortran/42999 * array.c (gfc_constant_ac): Do not prevent expansion of constructors diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 7c00478f26a..59181d7c97c 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,4 +1,8 @@ -2010-02-09 Jerry DeLisle <jvdelisle@gcc.gnu.org> +2010-02-10 Jakub Jelinek <jakub@redhat.com> + + * gcc.dg/builtin-ffs-1.c: New test. + +2010-02-09 Jerry DeLisle <jvdelisle@gcc.gnu.org> PR fortran/42999 * gfortran.dg/array_constructor_35.f90: New test. diff --git a/gcc/testsuite/gcc.dg/builtin-ffs-1.c b/gcc/testsuite/gcc.dg/builtin-ffs-1.c new file mode 100644 index 00000000000..2bf0e9873db --- /dev/null +++ b/gcc/testsuite/gcc.dg/builtin-ffs-1.c @@ -0,0 +1,17 @@ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ + +extern int ffs (int) __asm ("__GI_ffs") __attribute__ ((nothrow, const)); + +int +ffsll (long long int i) +{ + unsigned long long int x = i & -i; + + if (x <= 0xffffffff) + return ffs (i); + else + return 32 + ffs (i >> 32); +} + +/* { dg-final { scan-assembler-not "\nffs\n|\nffs\[^a-zA-Z0-9_\]|\[^a-zA-Z0-9_\]ffs\n" } } */ |