From cbb1ab104083d2fda4b7eee3b8c1a383ff5ced4e Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Wed, 10 Feb 2010 10:21:12 +0100 Subject: 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 --- gcc/testsuite/gcc.dg/builtin-ffs-1.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 gcc/testsuite/gcc.dg/builtin-ffs-1.c (limited to 'gcc/testsuite/gcc.dg/builtin-ffs-1.c') 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" } } */ -- cgit v1.1