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A comment on The Performance Cost of Integer Overflow Checking. Parent comment

Re:The Performance Cost of Integer Overflow Checking by solarexplorer on Thursday December 18, 2014 @04:48AM (#8766651)
Yes, AMD should have added it to x64. It isn't exactly new either. The Alpha's integer instructions had a bit in the instruction word that indicated if an overflow should cause a trap or not. IMHO that is the ideal solution.
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Re:The Performance Cost of Integer Overflow Checking by thesz on Thursday December 18, 2014 @10:51AM (#8767791)
No, it is not an ideal solution. It causes decrease in clock frequency for about 10% (or you have to make your design noticeably more complex).

The trap in Alpha ISA was done for MIPS compatibility reasons (Alpha was more or less MIPS assembly compatible).

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