diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-03-12 20:45:39 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2009-03-12 20:45:39 +0000 |
| commit | 1f477a18c46bb6c3901cb019cd1bfdd8242dc2aa (patch) | |
| tree | beadbfad946cf940235a072c010af8519bd6c4cf /gcc/testsuite/gcc.target/i386/pr39431.c | |
| parent | 7e17a1bfc7f21e9492b3e5178258e34012fbd3be (diff) | |
| download | gcc-1f477a18c46bb6c3901cb019cd1bfdd8242dc2aa.tar.gz | |
PR target/39431
* config/i386/predicates.md (cmpxchg8b_pic_memory_operand): New
predicate.
* config/i386/sync.md (sync_compare_and_swap<mode>,
sync_compare_and_swap_cc<mode>): For DImode with -m32 -fpic check
if operands[1] is cmpxchg8b_pic_memory_operand, if not force address
into a register.
(sync_double_compare_and_swapdi_pic,
sync_double_compare_and_swap_ccdi_pic): Require operand 1 to be
cmpxchg8b_pic_memory_operand instead of just memory_operand.
* gcc.target/i386/pr39431.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@144825 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.target/i386/pr39431.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr39431.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/pr39431.c b/gcc/testsuite/gcc.target/i386/pr39431.c new file mode 100644 index 00000000000..756bdb9ebb8 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr39431.c @@ -0,0 +1,15 @@ +/* PR target/39431 */ +/* { dg-do compile } */ +/* { dg-options "-O2" } */ +/* { dg-options "-O2 -march=i686 -fpic" { target { ilp32 && fpic } } } */ + +extern void bar (char *, int); + +int +foo (long long *p, long long oldv, long long *q, int n) +{ + char buf[n]; + bar (buf, n); + p[256 + n] = __sync_val_compare_and_swap (p + n, oldv, oldv + 6); + return __sync_bool_compare_and_swap (q + n, oldv, oldv + 8); +} |