Loop unrolling and CMOV opt for GCC on x86 - #253
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GCC does not generate the code as expected, so we added compiler hint and inline assembly to optimize it when compiling with GCC.
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GCC does not generate the code as expected, so we add compiler hint and inline assembly to optimize it when compiling with GCC.
Performance is listed as below, compiled with GCC 12.3.0, tested on Intel EMR. This improves most of the testcase in snappy_benchmark.