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* config/i386/sync.md (memory_barrier_nosse): Disable also for TARGET_64BIT. Remove special asm template for TARGET_64BIT case. (memory_barrier): Do not generate memory_barrier_nosse instruction for TARGET_64BIT. * config/i386/sse.md (*sse2_mfence): Also enable for TARGET_64BIT. From-SVN: r142224
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