examples/ip_pipeline: fix build for x86_64 without SSE4.2

The compiler cannot use _mm_crc32_u64:

examples/ip_pipeline/pipeline/hash_func.h:165:9:
error: implicit declaration of function '_mm_crc32_u64' is invalid in C99

Fixes: 947024a26df7 ("examples/ip_pipeline: rework passthrough pipeline")

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>

diff --git a/examples/ip_pipeline/pipeline/hash_func.h b/examples/ip_pipeline/pipeline/hash_func.h
index 7846300..1953ad4 100644 (file)
--- a/examples/ip_pipeline/pipeline/hash_func.h
+++ b/examples/ip_pipeline/pipeline/hash_func.h
@@ -152,7 +152,7 @@ hash_xor_key64(void *key, __rte_unused uint32_t key_size, uint64_t seed)
        return (xor0 >> 32) ^ xor0;
 }
 
-#if defined(__x86_64__)
+#if defined(__x86_64__) && defined(RTE_CPUFLAG_SSE4_2)
 
 #include <x86intrin.h>