[dpdk-dev] [PATCH v5] eal_common_cpuflags: Fix %rbx corruption, and simplify the code

[De Lara Guarch, Pablo]

Hi Neil,

> What was the value of RTE_COMPILE_TIME_CPUFLAGS when you built your library?  If you added defines for flag support that are not tested for yet in the cpu_feature_table, that would be the error you would see I think

RTE_COMPILE_TIME_CPUFLAGS= RTE_CPUFLAG_SSE,RTE_CPUFLAG_SSE2,RTE_CPUFLAG_SSE3,RTE_CPUFLAG_SSSE3,RTE_CPUFLAG_SSE4_1,RTE_CPUFLAG_SSE4_2,RTE_CPUFLAG_AES,RTE_CPUFLAG_PCLMULQDQ,RTE_CPUFLAG_AVX

For gcc_version >=4.6, that value is the same, of course (and all those flags are supported). So it has to be something else... 

Thanks,

Pablo de Lara
DPDK SW Engineer

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