Displaying 2 results from an estimated 2 matches for "b80b7e9f".
2016 Jan 21
2
Adding support for self-modifying branches to LLVM?
On 01/19/2016 09:04 PM, Sean Silva via llvm-dev wrote:
>
> AFAIK, the cost of a well-predicted, not-taken branch is the same as a
> nop on every x86 made in the last many years.
> See http://www.agner.org/optimize/instruction_tables.pdf
> <http://www.agner.org/optimize/instruction_tables.pdf>
> Generally speaking a correctly-predicted not-taken branch is basically
>
2016 Jan 21
3
Adding support for self-modifying branches to LLVM?
...that the original AMD implementation had a
bug in this instruction and the bug essentially got written into the
spec for all future chips. :(
Philip
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