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| author | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-02-10 10:21:12 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2010-02-10 10:21:12 +0100 |
| commit | cbb1ab104083d2fda4b7eee3b8c1a383ff5ced4e (patch) | |
| tree | adf80efb3b5c83bfd91ae5987fd3e83459dd7815 /gcc/testsuite/gcc.dg/builtin-ffs-1.c | |
| parent | f25a2b52ab58ffa3d9c5ba773181d0a9515f9e09 (diff) | |
| download | gcc-cbb1ab104083d2fda4b7eee3b8c1a383ff5ced4e.zip gcc-cbb1ab104083d2fda4b7eee3b8c1a383ff5ced4e.tar.gz gcc-cbb1ab104083d2fda4b7eee3b8c1a383ff5ced4e.tar.bz2 | |
builtins.c (set_builtin_user_assembler_name): Also handle ffs if int is smaller than word.
* builtins.c (set_builtin_user_assembler_name): Also handle
ffs if int is smaller than word.
* gcc.dg/builtin-ffs-1.c: New test.
From-SVN: r156646
Diffstat (limited to 'gcc/testsuite/gcc.dg/builtin-ffs-1.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/builtin-ffs-1.c | 17 |
1 files changed, 17 insertions, 0 deletions
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 0000000..2bf0e98 --- /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" } } */ |