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| author | Hongyu Wang <hongyu.wang@intel.com> | 2022-04-13 14:51:36 +0800 |
|---|---|---|
| committer | Hongyu Wang <hongyu.wang@intel.com> | 2022-04-13 16:17:27 +0800 |
| commit | 522f25e90c781d284f8347a04940db8b41c42fd5 (patch) | |
| tree | 3ae7f61f4cb464e533e678d0a3a0f68517d1681c /gcc/d/expr.cc | |
| parent | 41f8f8b8a4ffcf28961cdc077fd7f0770f4bb7cc (diff) | |
| download | gcc-522f25e90c781d284f8347a04940db8b41c42fd5.zip gcc-522f25e90c781d284f8347a04940db8b41c42fd5.tar.gz gcc-522f25e90c781d284f8347a04940db8b41c42fd5.tar.bz2 | |
i386: Fix infinite loop under -mrelax-cmpxchg-loop [PR 103069]
For -mrelax-cmpxchg-loop which relaxes atomic_fetch_<logic> loops,
there is a missing set to %eax when compare fails, which would result
in infinite loop in some benchmark. Add set to %eax to avoid it.
gcc/ChangeLog:
PR target/103069
* config/i386/i386-expand.cc (ix86_expand_cmpxchg_loop):
Add missing set to target_val at pause label.
Diffstat (limited to 'gcc/d/expr.cc')
0 files changed, 0 insertions, 0 deletions