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| author | Jakub Jelinek <jakub@redhat.com> | 2023-04-01 09:00:22 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2023-04-01 09:00:22 +0200 |
| commit | 87d3bc53b177037699f7f8dda3a3d17e647c459d (patch) | |
| tree | 6b88463a6fb2f2a914bbc8108467672271c1e464 /gcc | |
| parent | b1f6cb2cc3aad0521ad3181d5107e52be155fd18 (diff) | |
| download | gcc-87d3bc53b177037699f7f8dda3a3d17e647c459d.zip gcc-87d3bc53b177037699f7f8dda3a3d17e647c459d.tar.gz gcc-87d3bc53b177037699f7f8dda3a3d17e647c459d.tar.bz2 | |
testsuite: Add testcase for already fixed PR [PR109362]
This PR got fixed with r13-137.
Add a testcase to make sure it doesn't reappear.
2023-04-01 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/109362
* gcc.target/i386/pr109362.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr109362.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/i386/pr109362.c b/gcc/testsuite/gcc.target/i386/pr109362.c new file mode 100644 index 0000000..0e44dae --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr109362.c @@ -0,0 +1,19 @@ +/* PR tree-optimization/109362 */ +/* { dg-do compile { target lp64 } } */ +/* { dg-options "-O2 -masm=att" } */ +/* Ensure we don't waste a register set to %rdi + 8. */ +/* { dg-final { scan-assembler "\tmovq\t\\\(%rdi\\\), %r" } } */ +/* { dg-final { scan-assembler "\tmovq\t8\\\(%rdi\\\), %r" } } */ + +struct S { long a, b; }; + +int +foo (struct S *v) +{ + while (1) + { + __atomic_load_n (&v->a, __ATOMIC_ACQUIRE); + if (__atomic_load_n (&v->b, __ATOMIC_ACQUIRE)) + return 1; + } +} |