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by swiftcoder
1992 days ago
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> I’m not certain what the cost would be, being no compiler engineer or hand-coder of assembly, but I’m fairly confident that there is one. I suspect that cost may also be inordinate on various realistic workloads. Back in the PowerPC days, something along these lines happened with Java. Java mandates that integer divide-by-zero throws an exception, but PowerPC doesn't have a mechanism to signal that a divide-by-zero occurred (1/0 == 0, as far as PowerPC is concerned). This forced the JVM to wrap every integer divide with an explicit test for a zero divisor, which put a significant drag on JVM performance... |
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