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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.target/i386/980709-1.c | |
parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.target/i386/980709-1.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.target/i386/980709-1.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.target/i386/980709-1.c b/gcc-4.9/gcc/testsuite/gcc.target/i386/980709-1.c new file mode 100644 index 000000000..595b7cbaa --- /dev/null +++ b/gcc-4.9/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); +} |