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tcg/i386: Add have_atomic16

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Notice when Intel or AMD have guaranteed that vmovdqa is atomic.
The new variable will also be used in generated code.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-11-06 16:43:21 +11:00
parent e61f1efeb7
commit 6d3f2e3c64
3 changed files with 46 additions and 0 deletions
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tcg/i386/tcg-target.h
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@ -120,6 +120,7 @@ extern bool have_avx512dq;
extern bool have_avx512vbmi2;
extern bool have_avx512vl;
extern bool have_movbe;
extern bool have_atomic16;
/* optional instructions */
#define TCG_TARGET_HAS_div2_i32 1