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by SotCodeLaureate
1439 days ago
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SSE has scalar instructions - like "addss", "subss" etc. These will be used by default (at O2 without vectorization enabled) for single-precision floating point math on x86-64 (where stack-based FPU is deprecated). Vector instructions you're referring to end with "ps", they're very unlikely to be emitted for typical fp operations. |
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