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Diffstat (limited to 'ref_vqshrun_n.c')
| -rw-r--r-- | ref_vqshrun_n.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/ref_vqshrun_n.c b/ref_vqshrun_n.c new file mode 100644 index 0000000..871da96 --- /dev/null +++ b/ref_vqshrun_n.c @@ -0,0 +1,116 @@ +/* + +Copyright (c) 2009, 2010, 2011, 2012 STMicroelectronics +Written by Christophe Lyon + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +THE SOFTWARE. + +*/ + +#if defined(__arm__) || defined(__aarch64__) +#include <arm_neon.h> +#else +#include "stm-arm-neon.h" +#endif + +#include "stm-arm-neon-ref.h" + +#define INSN vqshrun_n +#define TEST_MSG "VQSHRUN_N" + +#define FNNAME1(NAME) void exec_ ## NAME (void) +#define FNNAME(NAME) FNNAME1(NAME) + +FNNAME (INSN) +{ + /* Basic test: y=vqshrun_n(x,v), then store the result. */ +#define TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V) \ + Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, uint, W2, N)); \ + VECT_VAR(vector_res, uint, W2, N) = \ + INSN##_##T2##W(VECT_VAR(vector, T1, W, N), \ + V); \ + vst1_u##W2(VECT_VAR(result, uint, W2, N), \ + VECT_VAR(vector_res, uint, W2, N)); \ + dump_neon_cumulative_sat(TEST_MSG, xSTR(INSN##_##T2##W), \ + xSTR(T1), W, N) + + /* Two auxliary macros are necessary to expand INSN */ +#define TEST_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V) \ + TEST_VQSHRUN_N2(INSN, T1, T2, W, W2, N, V) + +#define TEST_VQSHRUN_N(T1, T2, W, W2, N, V) \ + TEST_VQSHRUN_N1(INSN, T1, T2, W, W2, N, V) + + + /* With ARM RVCT, we need to declare variables before any executable + statement */ + + /* vector is twice as large as vector_res */ + DECL_VARIABLE(vector, int, 16, 8); + DECL_VARIABLE(vector, int, 32, 4); + DECL_VARIABLE(vector, int, 64, 2); + + DECL_VARIABLE(vector_res, uint, 8, 8); + DECL_VARIABLE(vector_res, uint, 16, 4); + DECL_VARIABLE(vector_res, uint, 32, 2); + + clean_results (); + + /* Fill input vector with negative values, to check saturation on limits */ + VDUP(vector, q, int, s, 16, 8, -2); + VDUP(vector, q, int, s, 32, 4, -3); + VDUP(vector, q, int, s, 64, 2, -4); + + /* Choose shift amount arbitrarily */ + fprintf(ref_file, "\n%s cumulative saturation output:\n", + TEST_MSG " (negative input)"); + TEST_VQSHRUN_N(int, s, 16, 8, 8, 3); + TEST_VQSHRUN_N(int, s, 32, 16, 4, 4); + TEST_VQSHRUN_N(int, s, 64, 32, 2, 2); + + /* FIXME: only a few result buffers are used, but we output all of them */ + dump_results_hex2 (TEST_MSG, " (negative input)"); + + /* Fill input vector with max value, to check saturation on limits */ + VDUP(vector, q, int, s, 16, 8, 0x7FFF); + VDUP(vector, q, int, s, 32, 4, 0x7FFFFFFF); + VDUP(vector, q, int, s, 64, 2, 0x7FFFFFFFFFFFFFFFLL); + + /* shift by 1 */ + fprintf(ref_file, "\n%s cumulative saturation output:\n", + TEST_MSG " (check cumulative saturation)"); + TEST_VQSHRUN_N(int, s, 16, 8, 8, 1); + TEST_VQSHRUN_N(int, s, 32, 16, 4, 1); + TEST_VQSHRUN_N(int, s, 64, 32, 2, 1); + + dump_results_hex2 (TEST_MSG, " (check cumulative saturation)"); + + /* Fill input vector with positive values, to check normal case */ + VDUP(vector, q, int, s, 16, 8, 0x1234); + VDUP(vector, q, int, s, 32, 4, 0x87654321); + VDUP(vector, q, int, s, 64, 2, 0xDEADBEEF); + + /* shift arbitrary amount */ + fprintf(ref_file, "\n%s cumulative saturation output:\n", TEST_MSG); + TEST_VQSHRUN_N(int, s, 16, 8, 8, 6); + TEST_VQSHRUN_N(int, s, 32, 16, 4, 7); + TEST_VQSHRUN_N(int, s, 64, 32, 2, 8); + + dump_results_hex (TEST_MSG); +} |