diff options
author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
---|---|---|
committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.target/i386/980709-1.c | |
download | cbb-gcc-4.6.4-upstream.tar.bz2 cbb-gcc-4.6.4-upstream.tar.xz |
obtained gcc-4.6.4.tar.bz2 from upstream website;upstream
verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.
downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.
if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/980709-1.c')
-rw-r--r-- | gcc/testsuite/gcc.target/i386/980709-1.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/980709-1.c b/gcc/testsuite/gcc.target/i386/980709-1.c new file mode 100644 index 000000000..595b7cbaa --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/980709-1.c @@ -0,0 +1,20 @@ +/* { dg-do compile } */ +/* { dg-options -O2 } */ + +extern __inline__ int test_and_set_bit(int nr, volatile void * addr) +{ + int oldbit; + __asm__ __volatile__( "" + "btsl %2,%1\n\tsbbl %0,%0" + :"=r" (oldbit),"=m" (addr) + :"ir" (nr)); + return oldbit; +} +struct buffer_head { + unsigned long b_state; +}; +extern void lock_buffer(struct buffer_head * bh) +{ + while (test_and_set_bit(2 , &bh->b_state)) + __wait_on_buffer(bh); +} |