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by astrange
1483 days ago
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You can just look at gcc and llvm source. GCC’s x86 backend is maintained by an Intel employee and it doesn’t have especially detailed descriptions of any cpu in -mtune. Actually, compiler optimizations like scheduling tend to be neutral to negative on x86 because they increase register pressure. You’d probably want to do “anti-scheduling” and hope the CPU decoder takes care of it if anything. |
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