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* config/i386/sync.md (atomic_store<mode>): Improve comment.

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From-SVN: r275755
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Uros Bizjak 2019-09-16 20:44:55 +02:00
parent 48d552e5cd
commit 9b47928e63
1 changed files with 2 additions and 2 deletions
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4
gcc/config/i386/sync.md
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@ -306,8 +306,8 @@
{
operands[1] = force_reg (<MODE>mode, operands[1]);
/* For seq-cst stores, use XCHG
when we lack MFENCE or when target prefers XCHG. */
/* For seq-cst stores, use XCHG when we lack MFENCE
or when target prefers XCHG. */
if (is_mm_seq_cst (model)
&& (!(TARGET_64BIT || TARGET_SSE2)
|| TARGET_USE_XCHG_FOR_ATOMIC_STORE))