1) MSVC does not support VLAs. Use standard fixed C arrays of
maximum size required instead.

2) ../usr/lib/gcc/x86_64-redhat-linux/13/include/emmintrin.h:742:8:
    error: array subscript 9 is outside array bounds of 'uint64_t[16]'
    {aka 'long unsigned int[16]'} [-Werror=array-bounds=]
   3695 742 | *__P = __B;

Compile with -Wno-array-bounds to avoid false positives when
using gcc version 11 or newer (gcc compiler bug/limitation).

Signed-off-by: Andre Muezerie <andre...@linux.microsoft.com>
---
 app/test/test_bitset.c             | 69 +++++++++++++++++++-----------
 app/test/test_lcore_var_perf.c     |  2 +-
 app/test/test_reassembly_perf.c    | 22 +++++-----
 app/test/test_soring_stress_impl.h | 13 +++---
 4 files changed, 63 insertions(+), 43 deletions(-)

diff --git a/app/test/test_bitset.c b/app/test/test_bitset.c
index 50b8bf0da4..45460204c1 100644
--- a/app/test/test_bitset.c
+++ b/app/test/test_bitset.c
@@ -99,11 +99,13 @@ typedef void clear_fun(uint64_t *bitset, size_t bit_num);
 typedef void assign_fun(uint64_t *bitset, size_t bit_num, bool value);
 typedef void flip_fun(uint64_t *bitset, size_t bit_num);
 
+#define RAND_SET_MAX_SIZE 1000
+
 static int
 test_set_clear_size(test_fun test_fun, set_fun set_fun, clear_fun clear_fun, 
size_t size)
 {
        size_t i;
-       bool reference[size];
+       bool reference[RAND_SET_MAX_SIZE];
        uint64_t *bitset;
 
        rand_bool_ary(reference, size);
@@ -131,8 +133,7 @@ test_set_clear_size(test_fun test_fun, set_fun set_fun, 
clear_fun clear_fun, siz
        return TEST_SUCCESS;
 }
 
-#define RAND_ITERATIONS (10000)
-#define RAND_SET_MAX_SIZE (1000)
+#define RAND_ITERATIONS 10000
 
 static int
 test_set_clear_fun(test_fun test_fun, set_fun set_fun, clear_fun clear_fun)
@@ -168,10 +169,20 @@ test_flip_size(test_fun test_fun, assign_fun assign_fun, 
flip_fun flip_fun, size
        rand_bitset(bitset, size);
 
        for (i = 0; i < size; i++) {
-               RTE_BITSET_DECLARE(reference, size);
+               RTE_BITSET_DECLARE(reference, RAND_SET_MAX_SIZE);
+
+#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 110000)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Warray-bounds"
+#endif
 
+               /* gcc is giving false positives here when code is optimized */
                rte_bitset_copy(reference, bitset, size);
 
+#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 110000)
+#pragma GCC diagnostic pop
+#endif
+
                bool value = test_fun(bitset, i);
 
                flip_fun(bitset, i);
@@ -282,13 +293,13 @@ find_clear(const bool *ary, size_t num_bools, size_t 
start, size_t len)
        return find(ary, num_bools, start, len, false);
 }
 
-#define FFS_ITERATIONS (100)
+#define FFS_ITERATIONS 100
 
 static int
 test_find_size(size_t size, bool set)
 {
        uint64_t *bitset;
-       bool reference[size];
+       bool reference[RAND_SET_MAX_SIZE];
        size_t i;
 
        bitset = alloc_bitset(size);
@@ -388,8 +399,8 @@ record_match(ssize_t match_idx, size_t size, int *calls)
 static int
 test_foreach_size(ssize_t size, bool may_wrap, bool set)
 {
-       bool reference[size];
-       int calls[size];
+       bool reference[RAND_SET_MAX_SIZE];
+       int calls[RAND_SET_MAX_SIZE];
        uint64_t *bitset;
        ssize_t i;
        ssize_t start_bit;
@@ -633,17 +644,19 @@ test_define(void)
 typedef void bitset_op(uint64_t *dst, const uint64_t *a, const uint64_t *b, 
size_t bit_num);
 typedef bool bool_op(bool a, bool b);
 
+#define LOGIC_MAX_SET_SIZE 200
+
 static int
 test_logic_op(bitset_op bitset_op, bool_op bool_op)
 {
-       const size_t size = 1 + rte_rand_max(200);
-       RTE_BITSET_DECLARE(bitset_a, size);
-       RTE_BITSET_DECLARE(bitset_b, size);
-       RTE_BITSET_DECLARE(bitset_d, size);
+       const size_t size = 1 + rte_rand_max(LOGIC_MAX_SET_SIZE);
+       RTE_BITSET_DECLARE(bitset_a, LOGIC_MAX_SET_SIZE);
+       RTE_BITSET_DECLARE(bitset_b, LOGIC_MAX_SET_SIZE);
+       RTE_BITSET_DECLARE(bitset_d, LOGIC_MAX_SET_SIZE);
 
-       bool ary_a[size];
-       bool ary_b[size];
-       bool ary_d[size];
+       bool ary_a[LOGIC_MAX_SET_SIZE];
+       bool ary_b[LOGIC_MAX_SET_SIZE];
+       bool ary_d[LOGIC_MAX_SET_SIZE];
 
        rand_bool_ary(ary_a, size);
        rand_bool_ary(ary_b, size);
@@ -708,14 +721,14 @@ test_complement(void)
        for (i = 0; i < RAND_ITERATIONS; i++) {
                const size_t size = 1 + rte_rand_max(RAND_SET_MAX_SIZE - 1);
 
-               RTE_BITSET_DECLARE(src, size);
+               RTE_BITSET_DECLARE(src, RAND_SET_MAX_SIZE);
 
                rand_bitset(src, size);
 
                bool bit_idx = rte_rand_max(size);
                bool bit_value = rte_bitset_test(src, bit_idx);
 
-               RTE_BITSET_DECLARE(dst, size);
+               RTE_BITSET_DECLARE(dst, RAND_SET_MAX_SIZE);
 
                rte_bitset_complement(dst, src, size);
 
@@ -726,6 +739,8 @@ test_complement(void)
        return TEST_SUCCESS;
 }
 
+#define SHIFT_SET_MAX_SIZE 500
+
 static int
 test_shift(bool right)
 {
@@ -734,12 +749,12 @@ test_shift(bool right)
        const char *direction = right ? "right" : "left";
 
        for (i = 0; i < 10000; i++) {
-               const int size = 1 + (int)rte_rand_max(500);
+               const int size = 1 + (int)rte_rand_max(SHIFT_SET_MAX_SIZE);
                const int shift_count = (int)rte_rand_max(1.5 * size);
                int src_idx;
 
-               RTE_BITSET_DECLARE(src, size);
-               RTE_BITSET_DECLARE(reference, size);
+               RTE_BITSET_DECLARE(src, SHIFT_SET_MAX_SIZE);
+               RTE_BITSET_DECLARE(reference, SHIFT_SET_MAX_SIZE);
 
                rte_bitset_init(src, size);
                rte_bitset_init(reference, size);
@@ -788,12 +803,14 @@ test_shift_left(void)
        return test_shift(false);
 }
 
+#define EQUAL_SET_MAX_SIZE 100
+
 static int
 test_equal(void)
 {
-       const size_t size = 100;
-       RTE_BITSET_DECLARE(bitset_a, size);
-       RTE_BITSET_DECLARE(bitset_b, size);
+       const size_t size = EQUAL_SET_MAX_SIZE;
+       RTE_BITSET_DECLARE(bitset_a, EQUAL_SET_MAX_SIZE);
+       RTE_BITSET_DECLARE(bitset_b, EQUAL_SET_MAX_SIZE);
 
        rand_buf(bitset_a, RTE_BITSET_SIZE(size));
        rand_buf(bitset_b, RTE_BITSET_SIZE(size));
@@ -821,9 +838,9 @@ test_equal(void)
 static int
 test_copy(void)
 {
-       const size_t size = 100;
-       RTE_BITSET_DECLARE(bitset_a, size);
-       RTE_BITSET_DECLARE(bitset_b, size);
+       const size_t size = EQUAL_SET_MAX_SIZE;
+       RTE_BITSET_DECLARE(bitset_a, EQUAL_SET_MAX_SIZE);
+       RTE_BITSET_DECLARE(bitset_b, EQUAL_SET_MAX_SIZE);
 
        rand_buf(bitset_a, RTE_BITSET_SIZE(size));
        rand_buf(bitset_b, RTE_BITSET_SIZE(size));
diff --git a/app/test/test_lcore_var_perf.c b/app/test/test_lcore_var_perf.c
index 41e29bbd49..5a74ce4808 100644
--- a/app/test/test_lcore_var_perf.c
+++ b/app/test/test_lcore_var_perf.c
@@ -185,7 +185,7 @@ test_lcore_var_access_n(unsigned int num_mods)
        double tls_latency;
        double lazy_tls_latency;
        double lvar_latency;
-       unsigned int mods[num_mods];
+       unsigned int mods[MAX_MODS];
        unsigned int i;
 
        for (i = 0; i < num_mods; i++)
diff --git a/app/test/test_reassembly_perf.c b/app/test/test_reassembly_perf.c
index 69cf029468..7d3c692547 100644
--- a/app/test/test_reassembly_perf.c
+++ b/app/test/test_reassembly_perf.c
@@ -557,6 +557,8 @@ ipv4_outstanding_reassembly_perf(int8_t nb_frags, uint8_t 
fill_order,
        return TEST_SUCCESS;
 }
 
+#define TEST_REASSEMBLY_ITERATIONS 4
+
 static int
 ipv4_reassembly_interleaved_flows_perf(uint8_t nb_frags)
 {
@@ -568,17 +570,17 @@ ipv4_reassembly_interleaved_flows_perf(uint8_t nb_frags)
        uint64_t total_cyc = 0;
        uint32_t i, j;
 
-       for (i = 0; i < flow_cnt; i += 4) {
+       for (i = 0; i < flow_cnt; i += TEST_REASSEMBLY_ITERATIONS) {
                struct rte_mbuf *buf_out[4] = {NULL};
                uint8_t reassembled = 0;
                uint8_t nb_frags = 0;
                uint8_t prev = 0;
 
-               for (j = 0; j < 4; j++)
+               for (j = 0; j < TEST_REASSEMBLY_ITERATIONS; j++)
                        nb_frags += frag_per_flow[i + j];
 
-               struct rte_mbuf *buf_arr[nb_frags];
-               for (j = 0; j < 4; j++) {
+               struct rte_mbuf *buf_arr[TEST_REASSEMBLY_ITERATIONS * 
MAX_FRAGMENTS];
+               for (j = 0; j < TEST_REASSEMBLY_ITERATIONS; j++) {
                        join_array(buf_arr, mbufs[i + j], prev,
                                   frag_per_flow[i + j]);
                        prev += frag_per_flow[i + j];
@@ -608,7 +610,7 @@ ipv4_reassembly_interleaved_flows_perf(uint8_t nb_frags)
                total_cyc += rte_rdtsc_precise() - flow_tstamp;
                if (reassembled != 4)
                        return TEST_FAILED;
-               for (j = 0; j < 4; j++) {
+               for (j = 0; j < TEST_REASSEMBLY_ITERATIONS; j++) {
                        memset(mbufs[i + j], 0,
                               sizeof(struct rte_mbuf *) * MAX_FRAGMENTS);
                        mbufs[i + j][0] = buf_out[j];
@@ -779,17 +781,17 @@ ipv6_reassembly_interleaved_flows_perf(int8_t nb_frags)
        uint64_t total_cyc = 0;
        uint32_t i, j;
 
-       for (i = 0; i < flow_cnt; i += 4) {
+       for (i = 0; i < flow_cnt; i += TEST_REASSEMBLY_ITERATIONS) {
                struct rte_mbuf *buf_out[4] = {NULL};
                uint8_t reassembled = 0;
                uint8_t nb_frags = 0;
                uint8_t prev = 0;
 
-               for (j = 0; j < 4; j++)
+               for (j = 0; j < TEST_REASSEMBLY_ITERATIONS; j++)
                        nb_frags += frag_per_flow[i + j];
 
-               struct rte_mbuf *buf_arr[nb_frags];
-               for (j = 0; j < 4; j++) {
+               struct rte_mbuf *buf_arr[TEST_REASSEMBLY_ITERATIONS * 
MAX_FRAGMENTS];
+               for (j = 0; j < TEST_REASSEMBLY_ITERATIONS; j++) {
                        join_array(buf_arr, mbufs[i + j], prev,
                                   frag_per_flow[i + j]);
                        prev += frag_per_flow[i + j];
@@ -825,7 +827,7 @@ ipv6_reassembly_interleaved_flows_perf(int8_t nb_frags)
                total_cyc += rte_rdtsc_precise() - flow_tstamp;
                if (reassembled != 4)
                        return TEST_FAILED;
-               for (j = 0; j < 4; j++) {
+               for (j = 0; j < TEST_REASSEMBLY_ITERATIONS; j++) {
                        memset(mbufs[i + j], 0,
                               sizeof(struct rte_mbuf *) * MAX_FRAGMENTS);
                        mbufs[i + j][0] = buf_out[j];
diff --git a/app/test/test_soring_stress_impl.h 
b/app/test/test_soring_stress_impl.h
index bea33f58d1..9e22de98d2 100644
--- a/app/test/test_soring_stress_impl.h
+++ b/app/test/test_soring_stress_impl.h
@@ -630,24 +630,25 @@ role_mask_even_odd(uint32_t nb_stage, uint32_t 
role_mask[RTE_MAX_LCORE])
 static void
 role_mask_div(uint32_t nb_stage, uint32_t role_mask[RTE_MAX_LCORE])
 {
+       const uint32_t msk_count = nb_stage + 1;
        uint32_t i, lc;
-       uint32_t msk[nb_stage + 1];
+       uint32_t *msk = alloca(sizeof(uint32_t) * msk_count);
 
        memset(role_mask, 0, sizeof(role_mask[0]) * RTE_MAX_LCORE);
 
-       for (i = 0; i != RTE_DIM(msk); i++) {
+       for (i = 0; i != msk_count; i++) {
                msk[i] = RTE_BIT32(i);
        };
 
        i = 0;
        RTE_LCORE_FOREACH_WORKER(lc) {
-               role_mask[lc] = msk[i % RTE_DIM(msk)];
+               role_mask[lc] = msk[i % msk_count];
                i++;
        }
-       if (i < RTE_DIM(msk)) {
+       if (i < msk_count) {
                lc = rte_get_next_lcore(-1, 1, 0);
-               for (; i != RTE_DIM(msk); i++)
-                       role_mask[lc] |= msk[i % RTE_DIM(msk)];
+               for (; i != msk_count; i++)
+                       role_mask[lc] |= msk[i % msk_count];
        }
 }
 
-- 
2.47.2.vfs.0.1

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