From 1f477a18c46bb6c3901cb019cd1bfdd8242dc2aa Mon Sep 17 00:00:00 2001 From: jakub Date: Thu, 12 Mar 2009 20:45:39 +0000 Subject: PR target/39431 * config/i386/predicates.md (cmpxchg8b_pic_memory_operand): New predicate. * config/i386/sync.md (sync_compare_and_swap, sync_compare_and_swap_cc): 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 --- gcc/testsuite/gcc.target/i386/pr39431.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) create mode 100644 gcc/testsuite/gcc.target/i386/pr39431.c (limited to 'gcc/testsuite/gcc.target/i386/pr39431.c') 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); +} -- cgit v1.2.1