Backport from mainline
2017-05-11 Uros Bizjak <ubizjak@gmail.com>
PR target/80706
* config/i386/sync.md (UNSPEC_LDX_ATOMIC): New unspec.
(UNSPEC_STX_ATOMIC): Ditto.
(loaddi_via_sse): New insn.
(storedi_via_sse): Ditto.
(atomic_loaddi_fpu): Emit loaddi_via_sse and storedi_via_sse.
Update corresponding peephole2 patterns.
(atomic_storedi_fpu): Ditto.
testsuite/ChangeLog:
Backport from mainline
2017-05-11 Uros Bizjak <ubizjak@gmail.com>
Jakub Jelinek <jakub@redhat.com>
PR target/80706
* gcc.target/i386/pr80706.c: New test.
2017-05-11 Uros Bizjak <ubizjak@gmail.com>
* gcc.target/i386/pr22152.c: Fix undefined testcase.
Remove unnecessary loop. Run on 32-bit targets only.
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branches/gcc-7-branch/gcc/ChangeLog