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target/i386: Use MO_128 for 16 byte atomics

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Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-07-26 13:38:42 -10:00
parent c21751f394
commit 26b14640d9
1 changed files with 1 additions and 1 deletions
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target/i386/tcg/mem_helper.c
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@ -136,7 +136,7 @@ void helper_cmpxchg16b(CPUX86State *env, target_ulong a0)
Int128 newv = int128_make128(env->regs[R_EBX], env->regs[R_ECX]);
int mem_idx = cpu_mmu_index(env, false);
MemOpIdx oi = make_memop_idx(MO_TEQ | MO_ALIGN_16, mem_idx);
MemOpIdx oi = make_memop_idx(MO_TE | MO_128 | MO_ALIGN, mem_idx);
Int128 oldv = cpu_atomic_cmpxchgo_le_mmu(env, a0, cmpv, newv, oi, ra);
if (int128_eq(oldv, cmpv)) {