Acked-by: Richard Henderson <richard.hender...@linaro.org> Signed-off-by: Taylor Simpson <tsimp...@quicinc.com> --- tests/tcg/hexagon/scatter_gather.c | 1011 ++++++++++++++++++++++++++++++++++++ tests/tcg/hexagon/Makefile.target | 2 + 2 files changed, 1013 insertions(+) create mode 100644 tests/tcg/hexagon/scatter_gather.c
diff --git a/tests/tcg/hexagon/scatter_gather.c b/tests/tcg/hexagon/scatter_gather.c new file mode 100644 index 0000000..b93eb18 --- /dev/null +++ b/tests/tcg/hexagon/scatter_gather.c @@ -0,0 +1,1011 @@ +/* + * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <http://www.gnu.org/licenses/>. + */ + +/* + * This example tests the HVX scatter/gather instructions + * + * See section 5.13 of the V68 HVX Programmer's Reference + * + * There are 3 main classes operations + * _16 16-bit elements and 16-bit offsets + * _32 32-bit elements and 32-bit offsets + * _16_32 16-bit elements and 32-bit offsets + * + * There are also masked and accumulate versions + */ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <inttypes.h> + +typedef long HVX_Vector __attribute__((__vector_size__(128))) + __attribute__((aligned(128))); +typedef long HVX_VectorPair __attribute__((__vector_size__(256))) + __attribute__((aligned(128))); +typedef long HVX_VectorPred __attribute__((__vector_size__(128))) + __attribute__((aligned(128))); + +#define VSCATTER_16(BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermh_128B((int)BASE, RGN, OFF, VALS) +#define VSCATTER_16_MASKED(MASK, BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermhq_128B(MASK, (int)BASE, RGN, OFF, VALS) +#define VSCATTER_32(BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermw_128B((int)BASE, RGN, OFF, VALS) +#define VSCATTER_32_MASKED(MASK, BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermwq_128B(MASK, (int)BASE, RGN, OFF, VALS) +#define VSCATTER_16_32(BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermhw_128B((int)BASE, RGN, OFF, VALS) +#define VSCATTER_16_32_MASKED(MASK, BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermhwq_128B(MASK, (int)BASE, RGN, OFF, VALS) +#define VSCATTER_16_ACC(BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermh_add_128B((int)BASE, RGN, OFF, VALS) +#define VSCATTER_32_ACC(BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermw_add_128B((int)BASE, RGN, OFF, VALS) +#define VSCATTER_16_32_ACC(BASE, RGN, OFF, VALS) \ + __builtin_HEXAGON_V6_vscattermhw_add_128B((int)BASE, RGN, OFF, VALS) + +#define VGATHER_16(DSTADDR, BASE, RGN, OFF) \ + __builtin_HEXAGON_V6_vgathermh_128B(DSTADDR, (int)BASE, RGN, OFF) +#define VGATHER_16_MASKED(DSTADDR, MASK, BASE, RGN, OFF) \ + __builtin_HEXAGON_V6_vgathermhq_128B(DSTADDR, MASK, (int)BASE, RGN, OFF) +#define VGATHER_32(DSTADDR, BASE, RGN, OFF) \ + __builtin_HEXAGON_V6_vgathermw_128B(DSTADDR, (int)BASE, RGN, OFF) +#define VGATHER_32_MASKED(DSTADDR, MASK, BASE, RGN, OFF) \ + __builtin_HEXAGON_V6_vgathermwq_128B(DSTADDR, MASK, (int)BASE, RGN, OFF) +#define VGATHER_16_32(DSTADDR, BASE, RGN, OFF) \ + __builtin_HEXAGON_V6_vgathermhw_128B(DSTADDR, (int)BASE, RGN, OFF) +#define VGATHER_16_32_MASKED(DSTADDR, MASK, BASE, RGN, OFF) \ + __builtin_HEXAGON_V6_vgathermhwq_128B(DSTADDR, MASK, (int)BASE, RGN, OFF) + +#define VSHUFF_H(V) \ + __builtin_HEXAGON_V6_vshuffh_128B(V) +#define VSPLAT_H(X) \ + __builtin_HEXAGON_V6_lvsplath_128B(X) +#define VAND_VAL(PRED, VAL) \ + __builtin_HEXAGON_V6_vandvrt_128B(PRED, VAL) +#define VDEAL_H(V) \ + __builtin_HEXAGON_V6_vdealh_128B(V) + +int err; + +/* define the number of rows/cols in a square matrix */ +#define MATRIX_SIZE 64 + +/* define the size of the scatter buffer */ +#define SCATTER_BUFFER_SIZE (MATRIX_SIZE * MATRIX_SIZE) + +/* fake vtcm - put buffers together and force alignment */ +static struct { + unsigned short vscatter16[SCATTER_BUFFER_SIZE]; + unsigned short vgather16[MATRIX_SIZE]; + unsigned int vscatter32[SCATTER_BUFFER_SIZE]; + unsigned int vgather32[MATRIX_SIZE]; + unsigned short vscatter16_32[SCATTER_BUFFER_SIZE]; + unsigned short vgather16_32[MATRIX_SIZE]; +} vtcm __attribute__((aligned(0x10000))); + +/* declare the arrays of reference values */ +unsigned short vscatter16_ref[SCATTER_BUFFER_SIZE]; +unsigned short vgather16_ref[MATRIX_SIZE]; +unsigned int vscatter32_ref[SCATTER_BUFFER_SIZE]; +unsigned int vgather32_ref[MATRIX_SIZE]; +unsigned short vscatter16_32_ref[SCATTER_BUFFER_SIZE]; +unsigned short vgather16_32_ref[MATRIX_SIZE]; + +/* declare the arrays of offsets */ +unsigned short half_offsets[MATRIX_SIZE]; +unsigned int word_offsets[MATRIX_SIZE]; + +/* declare the arrays of values */ +unsigned short half_values[MATRIX_SIZE]; +unsigned short half_values_acc[MATRIX_SIZE]; +unsigned short half_values_masked[MATRIX_SIZE]; +unsigned int word_values[MATRIX_SIZE]; +unsigned int word_values_acc[MATRIX_SIZE]; +unsigned int word_values_masked[MATRIX_SIZE]; + +/* declare the arrays of predicates */ +unsigned short half_predicates[MATRIX_SIZE]; +unsigned int word_predicates[MATRIX_SIZE]; + +/* make this big enough for all the intrinsics */ +const size_t region_len = sizeof(vtcm); + +/* optionally add sync instructions */ +#define SYNC_VECTOR 1 + +static void sync_scatter(void *addr) +{ +#if SYNC_VECTOR + /* + * Do the scatter release followed by a dummy load to complete the + * synchronization. Normally the dummy load would be deferred as + * long as possible to minimize stalls. + */ + asm volatile("vmem(%0 + #0):scatter_release\n" : : "r"(addr)); + /* use volatile to force the load */ + volatile HVX_Vector vDummy = *(HVX_Vector *)addr; vDummy = vDummy; +#endif +} + +static void sync_gather(void *addr) +{ +#if SYNC_VECTOR + /* use volatile to force the load */ + volatile HVX_Vector vDummy = *(HVX_Vector *)addr; vDummy = vDummy; +#endif +} + +/* optionally print the results */ +#define PRINT_DATA 0 + +#define FILL_CHAR '.' + +/* fill vtcm scratch with ee */ +void prefill_vtcm_scratch(void) +{ + memset(&vtcm, FILL_CHAR, sizeof(vtcm)); +} + +/* create byte offsets to be a diagonal of the matrix with 16 bit elements */ +void create_offsets_values_preds_16(void) +{ + unsigned short half_element = 0; + unsigned short half_element_masked = 0; + char letter = 'A'; + char letter_masked = '@'; + + for (int i = 0; i < MATRIX_SIZE; i++) { + half_offsets[i] = i * (2 * MATRIX_SIZE + 2); + + half_element = 0; + half_element_masked = 0; + for (int j = 0; j < 2; j++) { + half_element |= letter << j * 8; + half_element_masked |= letter_masked << j * 8; + } + + half_values[i] = half_element; + half_values_acc[i] = ((i % 10) << 8) + (i % 10); + half_values_masked[i] = half_element_masked; + + letter++; + /* reset to 'A' */ + if (letter == 'M') { + letter = 'A'; + } + + half_predicates[i] = (i % 3 == 0 || i % 5 == 0) ? ~0 : 0; + } +} + +/* create byte offsets to be a diagonal of the matrix with 32 bit elements */ +void create_offsets_values_preds_32(void) +{ + unsigned int word_element = 0; + unsigned int word_element_masked = 0; + char letter = 'A'; + char letter_masked = '&'; + + for (int i = 0; i < MATRIX_SIZE; i++) { + word_offsets[i] = i * (4 * MATRIX_SIZE + 4); + + word_element = 0; + word_element_masked = 0; + for (int j = 0; j < 4; j++) { + word_element |= letter << j * 8; + word_element_masked |= letter_masked << j * 8; + } + + word_values[i] = word_element; + word_values_acc[i] = ((i % 10) << 8) + (i % 10); + word_values_masked[i] = word_element_masked; + + letter++; + /* reset to 'A' */ + if (letter == 'M') { + letter = 'A'; + } + + word_predicates[i] = (i % 4 == 0 || i % 7 == 0) ? ~0 : 0; + } +} + +/* + * create byte offsets to be a diagonal of the matrix with 16 bit elements + * and 32 bit offsets + */ +void create_offsets_values_preds_16_32(void) +{ + unsigned short half_element = 0; + unsigned short half_element_masked = 0; + char letter = 'D'; + char letter_masked = '$'; + + for (int i = 0; i < MATRIX_SIZE; i++) { + word_offsets[i] = i * (2 * MATRIX_SIZE + 2); + + half_element = 0; + half_element_masked = 0; + for (int j = 0; j < 2; j++) { + half_element |= letter << j * 8; + half_element_masked |= letter_masked << j * 8; + } + + half_values[i] = half_element; + half_values_acc[i] = ((i % 10) << 8) + (i % 10); + half_values_masked[i] = half_element_masked; + + letter++; + /* reset to 'A' */ + if (letter == 'P') { + letter = 'D'; + } + + half_predicates[i] = (i % 2 == 0 || i % 13 == 0) ? ~0 : 0; + } +} + +/* scatter the 16 bit elements using intrinsics */ +void vector_scatter_16(void) +{ + /* copy the offsets and values to vectors */ + HVX_Vector offsets = *(HVX_Vector *)half_offsets; + HVX_Vector values = *(HVX_Vector *)half_values; + + VSCATTER_16(&vtcm.vscatter16, region_len, offsets, values); + + sync_scatter(vtcm.vscatter16); +} + +/* scatter-accumulate the 16 bit elements using intrinsics */ +void vector_scatter_16_acc(void) +{ + /* copy the offsets and values to vectors */ + HVX_Vector offsets = *(HVX_Vector *)half_offsets; + HVX_Vector values = *(HVX_Vector *)half_values_acc; + + VSCATTER_16_ACC(&vtcm.vscatter16, region_len, offsets, values); + + sync_scatter(vtcm.vscatter16); +} + +/* scatter the 16 bit elements using intrinsics */ +void vector_scatter_16_masked(void) +{ + /* copy the offsets and values to vectors */ + HVX_Vector offsets = *(HVX_Vector *)half_offsets; + HVX_Vector values = *(HVX_Vector *)half_values_masked; + HVX_Vector pred_reg = *(HVX_Vector *)half_predicates; + HVX_VectorPred preds = VAND_VAL(pred_reg, ~0); + + VSCATTER_16_MASKED(preds, &vtcm.vscatter16, region_len, offsets, values); + + sync_scatter(vtcm.vscatter16); +} + +/* scatter the 32 bit elements using intrinsics */ +void vector_scatter_32(void) +{ + /* copy the offsets and values to vectors */ + HVX_Vector offsetslo = *(HVX_Vector *)word_offsets; + HVX_Vector offsetshi = *(HVX_Vector *)&word_offsets[MATRIX_SIZE / 2]; + HVX_Vector valueslo = *(HVX_Vector *)word_values; + HVX_Vector valueshi = *(HVX_Vector *)&word_values[MATRIX_SIZE / 2]; + + VSCATTER_32(&vtcm.vscatter32, region_len, offsetslo, valueslo); + VSCATTER_32(&vtcm.vscatter32, region_len, offsetshi, valueshi); + + sync_scatter(vtcm.vscatter32); +} + +/* scatter-acc the 32 bit elements using intrinsics */ +void vector_scatter_32_acc(void) +{ + /* copy the offsets and values to vectors */ + HVX_Vector offsetslo = *(HVX_Vector *)word_offsets; + HVX_Vector offsetshi = *(HVX_Vector *)&word_offsets[MATRIX_SIZE / 2]; + HVX_Vector valueslo = *(HVX_Vector *)word_values_acc; + HVX_Vector valueshi = *(HVX_Vector *)&word_values_acc[MATRIX_SIZE / 2]; + + VSCATTER_32_ACC(&vtcm.vscatter32, region_len, offsetslo, valueslo); + VSCATTER_32_ACC(&vtcm.vscatter32, region_len, offsetshi, valueshi); + + sync_scatter(vtcm.vscatter32); +} + +/* scatter the 32 bit elements using intrinsics */ +void vector_scatter_32_masked(void) +{ + /* copy the offsets and values to vectors */ + HVX_Vector offsetslo = *(HVX_Vector *)word_offsets; + HVX_Vector offsetshi = *(HVX_Vector *)&word_offsets[MATRIX_SIZE / 2]; + HVX_Vector valueslo = *(HVX_Vector *)word_values_masked; + HVX_Vector valueshi = *(HVX_Vector *)&word_values_masked[MATRIX_SIZE / 2]; + HVX_Vector pred_reglo = *(HVX_Vector *)word_predicates; + HVX_Vector pred_reghi = *(HVX_Vector *)&word_predicates[MATRIX_SIZE / 2]; + HVX_VectorPred predslo = VAND_VAL(pred_reglo, ~0); + HVX_VectorPred predshi = VAND_VAL(pred_reghi, ~0); + + VSCATTER_32_MASKED(predslo, &vtcm.vscatter32, region_len, offsetslo, + valueslo); + VSCATTER_32_MASKED(predshi, &vtcm.vscatter32, region_len, offsetshi, + valueshi); + + sync_scatter(vtcm.vscatter16); +} + +/* scatter the 16 bit elements with 32 bit offsets using intrinsics */ +void vector_scatter_16_32(void) +{ + HVX_VectorPair offsets; + HVX_Vector values; + + /* get the word offsets in a vector pair */ + offsets = *(HVX_VectorPair *)word_offsets; + + /* these values need to be shuffled for the scatter */ + values = *(HVX_Vector *)half_values; + values = VSHUFF_H(values); + + VSCATTER_16_32(&vtcm.vscatter16_32, region_len, offsets, values); + + sync_scatter(vtcm.vscatter16_32); +} + +/* scatter-acc the 16 bit elements with 32 bit offsets using intrinsics */ +void vector_scatter_16_32_acc(void) +{ + HVX_VectorPair offsets; + HVX_Vector values; + + /* get the word offsets in a vector pair */ + offsets = *(HVX_VectorPair *)word_offsets; + + /* these values need to be shuffled for the scatter */ + values = *(HVX_Vector *)half_values_acc; + values = VSHUFF_H(values); + + VSCATTER_16_32_ACC(&vtcm.vscatter16_32, region_len, offsets, values); + + sync_scatter(vtcm.vscatter16_32); +} + +/* masked scatter the 16 bit elements with 32 bit offsets using intrinsics */ +void vector_scatter_16_32_masked(void) +{ + HVX_VectorPair offsets; + HVX_Vector values; + HVX_Vector pred_reg; + + /* get the word offsets in a vector pair */ + offsets = *(HVX_VectorPair *)word_offsets; + + /* these values need to be shuffled for the scatter */ + values = *(HVX_Vector *)half_values_masked; + values = VSHUFF_H(values); + + pred_reg = *(HVX_Vector *)half_predicates; + pred_reg = VSHUFF_H(pred_reg); + HVX_VectorPred preds = VAND_VAL(pred_reg, ~0); + + VSCATTER_16_32_MASKED(preds, &vtcm.vscatter16_32, region_len, offsets, + values); + + sync_scatter(vtcm.vscatter16_32); +} + +/* gather the elements from the scatter16 buffer */ +void vector_gather_16(void) +{ + HVX_Vector *vgather = (HVX_Vector *)&vtcm.vgather16; + HVX_Vector offsets = *(HVX_Vector *)half_offsets; + + VGATHER_16(vgather, &vtcm.vscatter16, region_len, offsets); + + sync_gather(vgather); +} + +static unsigned short gather_16_masked_init(void) +{ + char letter = '?'; + return letter | (letter << 8); +} + +void vector_gather_16_masked(void) +{ + HVX_Vector *vgather = (HVX_Vector *)&vtcm.vgather16; + HVX_Vector offsets = *(HVX_Vector *)half_offsets; + HVX_Vector pred_reg = *(HVX_Vector *)half_predicates; + HVX_VectorPred preds = VAND_VAL(pred_reg, ~0); + + *vgather = VSPLAT_H(gather_16_masked_init()); + VGATHER_16_MASKED(vgather, preds, &vtcm.vscatter16, region_len, offsets); + + sync_gather(vgather); +} + +/* gather the elements from the scatter32 buffer */ +void vector_gather_32(void) +{ + HVX_Vector *vgatherlo = (HVX_Vector *)&vtcm.vgather32; + HVX_Vector *vgatherhi = + (HVX_Vector *)((int)&vtcm.vgather32 + (MATRIX_SIZE * 2)); + HVX_Vector offsetslo = *(HVX_Vector *)word_offsets; + HVX_Vector offsetshi = *(HVX_Vector *)&word_offsets[MATRIX_SIZE / 2]; + + VGATHER_32(vgatherlo, &vtcm.vscatter32, region_len, offsetslo); + VGATHER_32(vgatherhi, &vtcm.vscatter32, region_len, offsetshi); + + sync_gather(vgatherhi); +} + +static unsigned int gather_32_masked_init(void) +{ + char letter = '?'; + return letter | (letter << 8) | (letter << 16) | (letter << 24); +} + +void vector_gather_32_masked(void) +{ + HVX_Vector *vgatherlo = (HVX_Vector *)&vtcm.vgather32; + HVX_Vector *vgatherhi = + (HVX_Vector *)((int)&vtcm.vgather32 + (MATRIX_SIZE * 2)); + HVX_Vector offsetslo = *(HVX_Vector *)word_offsets; + HVX_Vector offsetshi = *(HVX_Vector *)&word_offsets[MATRIX_SIZE / 2]; + HVX_Vector pred_reglo = *(HVX_Vector *)word_predicates; + HVX_VectorPred predslo = VAND_VAL(pred_reglo, ~0); + HVX_Vector pred_reghi = *(HVX_Vector *)&word_predicates[MATRIX_SIZE / 2]; + HVX_VectorPred predshi = VAND_VAL(pred_reghi, ~0); + + *vgatherlo = VSPLAT_H(gather_32_masked_init()); + *vgatherhi = VSPLAT_H(gather_32_masked_init()); + VGATHER_32_MASKED(vgatherlo, predslo, &vtcm.vscatter32, region_len, + offsetslo); + VGATHER_32_MASKED(vgatherhi, predshi, &vtcm.vscatter32, region_len, + offsetshi); + + sync_gather(vgatherlo); + sync_gather(vgatherhi); +} + +/* gather the elements from the scatter16_32 buffer */ +void vector_gather_16_32(void) +{ + HVX_Vector *vgather; + HVX_VectorPair offsets; + HVX_Vector values; + + /* get the vtcm address to gather from */ + vgather = (HVX_Vector *)&vtcm.vgather16_32; + + /* get the word offsets in a vector pair */ + offsets = *(HVX_VectorPair *)word_offsets; + + VGATHER_16_32(vgather, &vtcm.vscatter16_32, region_len, offsets); + + /* deal the elements to get the order back */ + values = *(HVX_Vector *)vgather; + values = VDEAL_H(values); + + /* write it back to vtcm address */ + *(HVX_Vector *)vgather = values; +} + +void vector_gather_16_32_masked(void) +{ + HVX_Vector *vgather; + HVX_VectorPair offsets; + HVX_Vector pred_reg; + HVX_VectorPred preds; + HVX_Vector values; + + /* get the vtcm address to gather from */ + vgather = (HVX_Vector *)&vtcm.vgather16_32; + + /* get the word offsets in a vector pair */ + offsets = *(HVX_VectorPair *)word_offsets; + pred_reg = *(HVX_Vector *)half_predicates; + pred_reg = VSHUFF_H(pred_reg); + preds = VAND_VAL(pred_reg, ~0); + + *vgather = VSPLAT_H(gather_16_masked_init()); + VGATHER_16_32_MASKED(vgather, preds, &vtcm.vscatter16_32, region_len, + offsets); + + /* deal the elements to get the order back */ + values = *(HVX_Vector *)vgather; + values = VDEAL_H(values); + + /* write it back to vtcm address */ + *(HVX_Vector *)vgather = values; +} + +static void check_buffer(const char *name, void *c, void *r, size_t size) +{ + char *check = (char *)c; + char *ref = (char *)r; + for (int i = 0; i < size; i++) { + if (check[i] != ref[i]) { + printf("ERROR %s [%d]: 0x%x (%c) != 0x%x (%c)\n", name, i, + check[i], check[i], ref[i], ref[i]); + err++; + } + } +} + +/* + * These scalar functions are the C equivalents of the vector functions that + * use HVX + */ + +/* scatter the 16 bit elements using C */ +void scalar_scatter_16(unsigned short *vscatter16) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vscatter16[half_offsets[i] / 2] = half_values[i]; + } +} + +void check_scatter_16() +{ + memset(vscatter16_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); + scalar_scatter_16(vscatter16_ref); + check_buffer(__func__, vtcm.vscatter16, vscatter16_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); +} + +/* scatter the 16 bit elements using C */ +void scalar_scatter_16_acc(unsigned short *vscatter16) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vscatter16[half_offsets[i] / 2] += half_values_acc[i]; + } +} + +void check_scatter_16_acc() +{ + memset(vscatter16_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); + scalar_scatter_16(vscatter16_ref); + scalar_scatter_16_acc(vscatter16_ref); + check_buffer(__func__, vtcm.vscatter16, vscatter16_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); +} + +/* scatter the 16 bit elements using C */ +void scalar_scatter_16_masked(unsigned short *vscatter16) +{ + for (int i = 0; i < MATRIX_SIZE; i++) { + if (half_predicates[i]) { + vscatter16[half_offsets[i] / 2] = half_values_masked[i]; + } + } + +} + +void check_scatter_16_masked() +{ + memset(vscatter16_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); + scalar_scatter_16(vscatter16_ref); + scalar_scatter_16_acc(vscatter16_ref); + scalar_scatter_16_masked(vscatter16_ref); + check_buffer(__func__, vtcm.vscatter16, vscatter16_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); +} + +/* scatter the 32 bit elements using C */ +void scalar_scatter_32(unsigned int *vscatter32) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vscatter32[word_offsets[i] / 4] = word_values[i]; + } +} + +void check_scatter_32() +{ + memset(vscatter32_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned int)); + scalar_scatter_32(vscatter32_ref); + check_buffer(__func__, vtcm.vscatter32, vscatter32_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned int)); +} + +/* scatter the 32 bit elements using C */ +void scalar_scatter_32_acc(unsigned int *vscatter32) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vscatter32[word_offsets[i] / 4] += word_values_acc[i]; + } +} + +void check_scatter_32_acc() +{ + memset(vscatter32_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned int)); + scalar_scatter_32(vscatter32_ref); + scalar_scatter_32_acc(vscatter32_ref); + check_buffer(__func__, vtcm.vscatter32, vscatter32_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned int)); +} + +/* scatter the 32 bit elements using C */ +void scalar_scatter_32_masked(unsigned int *vscatter32) +{ + for (int i = 0; i < MATRIX_SIZE; i++) { + if (word_predicates[i]) { + vscatter32[word_offsets[i] / 4] = word_values_masked[i]; + } + } +} + +void check_scatter_32_masked() +{ + memset(vscatter32_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned int)); + scalar_scatter_32(vscatter32_ref); + scalar_scatter_32_acc(vscatter32_ref); + scalar_scatter_32_masked(vscatter32_ref); + check_buffer(__func__, vtcm.vscatter32, vscatter32_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned int)); +} + +/* scatter the 32 bit elements using C */ +void scalar_scatter_16_32(unsigned short *vscatter16_32) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vscatter16_32[word_offsets[i] / 2] = half_values[i]; + } +} + +void check_scatter_16_32() +{ + memset(vscatter16_32_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); + scalar_scatter_16_32(vscatter16_32_ref); + check_buffer(__func__, vtcm.vscatter16_32, vscatter16_32_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); +} + +/* scatter the 32 bit elements using C */ +void scalar_scatter_16_32_acc(unsigned short *vscatter16_32) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vscatter16_32[word_offsets[i] / 2] += half_values_acc[i]; + } +} + +void check_scatter_16_32_acc() +{ + memset(vscatter16_32_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); + scalar_scatter_16_32(vscatter16_32_ref); + scalar_scatter_16_32_acc(vscatter16_32_ref); + check_buffer(__func__, vtcm.vscatter16_32, vscatter16_32_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); +} + +void scalar_scatter_16_32_masked(unsigned short *vscatter16_32) +{ + for (int i = 0; i < MATRIX_SIZE; i++) { + if (half_predicates[i]) { + vscatter16_32[word_offsets[i] / 2] = half_values_masked[i]; + } + } +} + +void check_scatter_16_32_masked() +{ + memset(vscatter16_32_ref, FILL_CHAR, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); + scalar_scatter_16_32(vscatter16_32_ref); + scalar_scatter_16_32_acc(vscatter16_32_ref); + scalar_scatter_16_32_masked(vscatter16_32_ref); + check_buffer(__func__, vtcm.vscatter16_32, vscatter16_32_ref, + SCATTER_BUFFER_SIZE * sizeof(unsigned short)); +} + +/* gather the elements from the scatter buffer using C */ +void scalar_gather_16(unsigned short *vgather16) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vgather16[i] = vtcm.vscatter16[half_offsets[i] / 2]; + } +} + +void check_gather_16() +{ + memset(vgather16_ref, 0, MATRIX_SIZE * sizeof(unsigned short)); + scalar_gather_16(vgather16_ref); + check_buffer(__func__, vtcm.vgather16, vgather16_ref, + MATRIX_SIZE * sizeof(unsigned short)); +} + +void scalar_gather_16_masked(unsigned short *vgather16) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + if (half_predicates[i]) { + vgather16[i] = vtcm.vscatter16[half_offsets[i] / 2]; + } + } +} + +void check_gather_16_masked() +{ + memset(vgather16_ref, gather_16_masked_init(), + MATRIX_SIZE * sizeof(unsigned short)); + scalar_gather_16_masked(vgather16_ref); + check_buffer(__func__, vtcm.vgather16, vgather16_ref, + MATRIX_SIZE * sizeof(unsigned short)); +} + +/* gather the elements from the scatter buffer using C */ +void scalar_gather_32(unsigned int *vgather32) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vgather32[i] = vtcm.vscatter32[word_offsets[i] / 4]; + } +} + +void check_gather_32(void) +{ + memset(vgather32_ref, 0, MATRIX_SIZE * sizeof(unsigned int)); + scalar_gather_32(vgather32_ref); + check_buffer(__func__, vtcm.vgather32, vgather32_ref, + MATRIX_SIZE * sizeof(unsigned int)); +} + +void scalar_gather_32_masked(unsigned int *vgather32) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + if (word_predicates[i]) { + vgather32[i] = vtcm.vscatter32[word_offsets[i] / 4]; + } + } +} + + +void check_gather_32_masked(void) +{ + memset(vgather32_ref, gather_32_masked_init(), + MATRIX_SIZE * sizeof(unsigned int)); + scalar_gather_32_masked(vgather32_ref); + check_buffer(__func__, vtcm.vgather32, + vgather32_ref, MATRIX_SIZE * sizeof(unsigned int)); +} + +/* gather the elements from the scatter buffer using C */ +void scalar_gather_16_32(unsigned short *vgather16_32) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + vgather16_32[i] = vtcm.vscatter16_32[word_offsets[i] / 2]; + } +} + +void check_gather_16_32(void) +{ + memset(vgather16_32_ref, 0, MATRIX_SIZE * sizeof(unsigned short)); + scalar_gather_16_32(vgather16_32_ref); + check_buffer(__func__, vtcm.vgather16_32, vgather16_32_ref, + MATRIX_SIZE * sizeof(unsigned short)); +} + +void scalar_gather_16_32_masked(unsigned short *vgather16_32) +{ + for (int i = 0; i < MATRIX_SIZE; ++i) { + if (half_predicates[i]) { + vgather16_32[i] = vtcm.vscatter16_32[word_offsets[i] / 2]; + } + } + +} + +void check_gather_16_32_masked(void) +{ + memset(vgather16_32_ref, gather_16_masked_init(), + MATRIX_SIZE * sizeof(unsigned short)); + scalar_gather_16_32_masked(vgather16_32_ref); + check_buffer(__func__, vtcm.vgather16_32, vgather16_32_ref, + MATRIX_SIZE * sizeof(unsigned short)); +} + +/* print scatter16 buffer */ +void print_scatter16_buffer(void) +{ + if (PRINT_DATA) { + printf("\n\nPrinting the 16 bit scatter buffer"); + + for (int i = 0; i < SCATTER_BUFFER_SIZE; i++) { + if ((i % MATRIX_SIZE) == 0) { + printf("\n"); + } + for (int j = 0; j < 2; j++) { + printf("%c", (char)((vtcm.vscatter16[i] >> j * 8) & 0xff)); + } + printf(" "); + } + printf("\n"); + } +} + +/* print the gather 16 buffer */ +void print_gather_result_16(void) +{ + if (PRINT_DATA) { + printf("\n\nPrinting the 16 bit gather result\n"); + + for (int i = 0; i < MATRIX_SIZE; i++) { + for (int j = 0; j < 2; j++) { + printf("%c", (char)((vtcm.vgather16[i] >> j * 8) & 0xff)); + } + printf(" "); + } + printf("\n"); + } +} + +/* print the scatter32 buffer */ +void print_scatter32_buffer(void) +{ + if (PRINT_DATA) { + printf("\n\nPrinting the 32 bit scatter buffer"); + + for (int i = 0; i < SCATTER_BUFFER_SIZE; i++) { + if ((i % MATRIX_SIZE) == 0) { + printf("\n"); + } + for (int j = 0; j < 4; j++) { + printf("%c", (char)((vtcm.vscatter32[i] >> j * 8) & 0xff)); + } + printf(" "); + } + printf("\n"); + } +} + +/* print the gather 32 buffer */ +void print_gather_result_32(void) +{ + if (PRINT_DATA) { + printf("\n\nPrinting the 32 bit gather result\n"); + + for (int i = 0; i < MATRIX_SIZE; i++) { + for (int j = 0; j < 4; j++) { + printf("%c", (char)((vtcm.vgather32[i] >> j * 8) & 0xff)); + } + printf(" "); + } + printf("\n"); + } +} + +/* print the scatter16_32 buffer */ +void print_scatter16_32_buffer(void) +{ + if (PRINT_DATA) { + printf("\n\nPrinting the 16_32 bit scatter buffer"); + + for (int i = 0; i < SCATTER_BUFFER_SIZE; i++) { + if ((i % MATRIX_SIZE) == 0) { + printf("\n"); + } + for (int j = 0; j < 2; j++) { + printf("%c", + (unsigned char)((vtcm.vscatter16_32[i] >> j * 8) & 0xff)); + } + printf(" "); + } + printf("\n"); + } +} + +/* print the gather 16_32 buffer */ +void print_gather_result_16_32(void) +{ + if (PRINT_DATA) { + printf("\n\nPrinting the 16_32 bit gather result\n"); + + for (int i = 0; i < MATRIX_SIZE; i++) { + for (int j = 0; j < 2; j++) { + printf("%c", + (unsigned char)((vtcm.vgather16_32[i] >> j * 8) & 0xff)); + } + printf(" "); + } + printf("\n"); + } +} + +int main() +{ + prefill_vtcm_scratch(); + + /* 16 bit elements with 16 bit offsets */ + create_offsets_values_preds_16(); + + vector_scatter_16(); + print_scatter16_buffer(); + check_scatter_16(); + + vector_gather_16(); + print_gather_result_16(); + check_gather_16(); + + vector_gather_16_masked(); + print_gather_result_16(); + check_gather_16_masked(); + + vector_scatter_16_acc(); + print_scatter16_buffer(); + check_scatter_16_acc(); + + vector_scatter_16_masked(); + print_scatter16_buffer(); + check_scatter_16_masked(); + + /* 32 bit elements with 32 bit offsets */ + create_offsets_values_preds_32(); + + vector_scatter_32(); + print_scatter32_buffer(); + check_scatter_32(); + + vector_gather_32(); + print_gather_result_32(); + check_gather_32(); + + vector_gather_32_masked(); + print_gather_result_32(); + check_gather_32_masked(); + + vector_scatter_32_acc(); + print_scatter32_buffer(); + check_scatter_32_acc(); + + vector_scatter_32_masked(); + print_scatter32_buffer(); + check_scatter_32_masked(); + + /* 16 bit elements with 32 bit offsets */ + create_offsets_values_preds_16_32(); + + vector_scatter_16_32(); + print_scatter16_32_buffer(); + check_scatter_16_32(); + + vector_gather_16_32(); + print_gather_result_16_32(); + check_gather_16_32(); + + vector_gather_16_32_masked(); + print_gather_result_16_32(); + check_gather_16_32_masked(); + + vector_scatter_16_32_acc(); + print_scatter16_32_buffer(); + check_scatter_16_32_acc(); + + vector_scatter_16_32_masked(); + print_scatter16_32_buffer(); + check_scatter_16_32_masked(); + + puts(err ? "FAIL" : "PASS"); + return err; +} diff --git a/tests/tcg/hexagon/Makefile.target b/tests/tcg/hexagon/Makefile.target index 59b5bb1..c4540d5 100644 --- a/tests/tcg/hexagon/Makefile.target +++ b/tests/tcg/hexagon/Makefile.target @@ -39,6 +39,7 @@ HEX_TESTS += brev HEX_TESTS += load_unpack HEX_TESTS += load_align HEX_TESTS += vector_add_int +HEX_TESTS += scatter_gather HEX_TESTS += atomics HEX_TESTS += fpstuff HEX_TESTS += overflow @@ -46,5 +47,6 @@ HEX_TESTS += hvx_misc TESTS += $(HEX_TESTS) +scatter_gather: CFLAGS += -mhvx vector_add_int: CFLAGS += -mhvx -fvectorize hvx_misc: CFLAGS += -mhvx -- 2.7.4
