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qemu/atomic128: Improve cmpxchg fallback for atomic16_set
authorRichard Henderson <richard.henderson@linaro.org>
Sat, 20 May 2023 03:53:16 +0000 (20:53 -0700)
committerRichard Henderson <richard.henderson@linaro.org>
Wed, 24 May 2023 01:54:55 +0000 (18:54 -0700)
commitb35b812567f090e41c4b194bb2a752f29e9aedcc
tree4bd808b56cc05271055c995753c366f0ba1b1fd8tree
parent427fbf3721da334c1f429d2a5285caa7025139c2commit | diff
qemu/atomic128: Improve cmpxchg fallback for atomic16_set

Use __sync_bool_compare_and_swap_16 to control the loop,
rather than a separate comparison.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
host/include/generic/host/atomic128-ldst.h diff | blob | history
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