ARM: Add CPU detection.
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@@ -136,7 +136,7 @@ static LJ_AINLINE uint32_t lj_bswap(uint32_t x)
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{
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uint32_t r;
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#if __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6T2__ || __ARM_ARCH_6Z__ ||\
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__ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__
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__ARM_ARCH_6ZK__ || __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__
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__asm__("rev %0, %1" : "=r" (r) : "r" (x));
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return r;
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#else
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