[dpdk-dev] [PATCH v2] lib/librte_sched: Fix compile with gcc 4.3.4

[Michael Qiu]

gcc 4.3.4 does not include "immintrin.h", and will post below error:
    lib/librte_sched/rte_sched.c:56:23: error:
    immintrin.h: No such file or directory

To avoid this issue, a gcc version check is need and a flag to indicate
vector ablility.

Fixes: 42ec27a0178a ("sched: enable SSE optimizations in config")

Signed-off-by: Michael Qiu <michael.qiu at intel.com>
---
v2 --> v1:
	include header file rte_vect.h instead of gcc version check
	change __AVX__ to __SSE2__ since all vector function are SSE2 related.

 lib/librte_sched/rte_sched.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/librte_sched/rte_sched.c b/lib/librte_sched/rte_sched.c
index d47cfc2..0d46618 100644
--- a/lib/librte_sched/rte_sched.c
+++ b/lib/librte_sched/rte_sched.c
@@ -42,6 +42,7 @@
 #include <rte_prefetch.h>
 #include <rte_branch_prediction.h>
 #include <rte_mbuf.h>
+#include <rte_vect.h>
 
 #include "rte_sched.h"
 #include "rte_bitmap.h"
@@ -53,7 +54,11 @@
 #endif
 
 #ifdef RTE_SCHED_VECTOR
-#include <immintrin.h>
+
+#if defined(__SSE2__)
+#define SCHED_VECTOR_ENABLE
+#endif
+
 #endif
 
 #define RTE_SCHED_TB_RATE_CONFIG_ERR          (1e-7)
@@ -1667,7 +1672,7 @@ grinder_schedule(struct rte_sched_port *port, uint32_t pos)
 	return 1;
 }
 
-#ifdef RTE_SCHED_VECTOR
+#ifdef SCHED_VECTOR_ENABLE
 
 static inline int
 grinder_pipe_exists(struct rte_sched_port *port, uint32_t base_pipe)
-- 
1.9.3