diff options
Diffstat (limited to 'tests/tcg/hexagon/hvx_misc.c')
| -rw-r--r-- | tests/tcg/hexagon/hvx_misc.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tests/tcg/hexagon/hvx_misc.c b/tests/tcg/hexagon/hvx_misc.c index b896f5897e..6e2c9ab3cd 100644 --- a/tests/tcg/hexagon/hvx_misc.c +++ b/tests/tcg/hexagon/hvx_misc.c @@ -498,6 +498,49 @@ static void test_vsubuwsat_dv(void) check_output_w(__LINE__, 2); } +static void test_vshuff(void) +{ + /* Test that vshuff works when the two operands are the same register */ + const uint32_t splat = 0x089be55c; + const uint32_t shuff = 0x454fa926; + MMVector v0, v1; + + memset(expect, 0x12, sizeof(MMVector)); + memset(output, 0x34, sizeof(MMVector)); + + asm volatile("v25 = vsplat(%0)\n\t" + "vshuff(v25, v25, %1)\n\t" + "vmem(%2 + #0) = v25\n\t" + : /* no outputs */ + : "r"(splat), "r"(shuff), "r"(output) + : "v25", "memory"); + + /* + * The semantics of Hexagon are the operands are pass-by-value, so create + * two copies of the vsplat result. + */ + for (int i = 0; i < MAX_VEC_SIZE_BYTES / 4; i++) { + v0.uw[i] = splat; + v1.uw[i] = splat; + } + /* Do the vshuff operation */ + for (int offset = 1; offset < MAX_VEC_SIZE_BYTES; offset <<= 1) { + if (shuff & offset) { + for (int k = 0; k < MAX_VEC_SIZE_BYTES; k++) { + if (!(k & offset)) { + uint8_t tmp = v0.ub[k]; + v0.ub[k] = v1.ub[k + offset]; + v1.ub[k + offset] = tmp; + } + } + } + } + /* Put the result in the expect buffer for verification */ + expect[0] = v1; + + check_output_b(__LINE__, 1); +} + int main() { init_buffers(); @@ -533,6 +576,8 @@ int main() test_vadduwsat(); test_vsubuwsat_dv(); + test_vshuff(); + puts(err ? "FAIL" : "PASS"); return err ? 1 : 0; } |