2023-04-28 01:00:06 +02:00
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/*
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* Copyright(c) 2023 Qualcomm Innovation Center, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Test instructions where the semantics write to the destination
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* before all the operand reads have been completed.
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*
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* These instructions are problematic when we short-circuit the
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* register writes because the destination and source operands could
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* be the same TCGv.
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*
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* We test by forcing the read and write to be register r7.
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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int err;
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2023-05-19 18:05:59 +02:00
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#include "hex_test.h"
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2023-04-28 01:00:06 +02:00
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#define insert(RES, X, WIDTH, OFFSET) \
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asm("r7 = %1\n\t" \
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"r7 = insert(r7, #" #WIDTH ", #" #OFFSET ")\n\t" \
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"%0 = r7\n\t" \
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: "=r"(RES) : "r"(X) : "r7")
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static void test_insert(void)
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{
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uint32_t res;
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insert(res, 0x12345678, 8, 1);
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2023-05-19 18:05:59 +02:00
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check32(res, 0x123456f0);
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2023-04-28 01:00:06 +02:00
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insert(res, 0x12345678, 0, 1);
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2023-05-19 18:05:59 +02:00
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check32(res, 0x12345678);
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2023-04-28 01:00:06 +02:00
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insert(res, 0x12345678, 20, 16);
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2023-05-19 18:05:59 +02:00
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check32(res, 0x56785678);
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2023-04-28 01:00:06 +02:00
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}
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static inline uint32_t insert_rp(uint32_t x, uint32_t width, uint32_t offset)
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{
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uint64_t width_offset = (uint64_t)width << 32 | offset;
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uint32_t res;
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asm("r7 = %1\n\t"
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"r7 = insert(r7, %2)\n\t"
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"%0 = r7\n\t"
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: "=r"(res) : "r"(x), "r"(width_offset) : "r7");
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return res;
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}
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static void test_insert_rp(void)
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{
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2023-05-19 18:05:59 +02:00
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check32(insert_rp(0x12345678, 8, 1), 0x123456f0);
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check32(insert_rp(0x12345678, 63, 8), 0x34567878);
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check32(insert_rp(0x12345678, 127, 8), 0x34567878);
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check32(insert_rp(0x12345678, 8, 24), 0x78345678);
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check32(insert_rp(0x12345678, 8, 63), 0x12345678);
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check32(insert_rp(0x12345678, 8, 64), 0x00000000);
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2023-04-28 01:00:06 +02:00
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}
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static inline uint32_t asr_r_svw_trun(uint64_t x, uint32_t y)
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{
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uint32_t res;
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asm("r7 = %2\n\t"
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"r7 = vasrw(%1, r7)\n\t"
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"%0 = r7\n\t"
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: "=r"(res) : "r"(x), "r"(y) : "r7");
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return res;
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}
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static void test_asr_r_svw_trun(void)
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{
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2023-05-19 18:05:59 +02:00
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check32(asr_r_svw_trun(0x1111111122222222ULL, 5),
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0x88881111);
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check32(asr_r_svw_trun(0x1111111122222222ULL, 63),
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0x00000000);
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check32(asr_r_svw_trun(0x1111111122222222ULL, 64),
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0x00000000);
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check32(asr_r_svw_trun(0x1111111122222222ULL, 127),
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0x22224444);
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check32(asr_r_svw_trun(0x1111111122222222ULL, 128),
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0x11112222);
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check32(asr_r_svw_trun(0xffffffff22222222ULL, 128),
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0xffff2222);
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2023-04-28 01:00:06 +02:00
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}
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static inline uint32_t swiz(uint32_t x)
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{
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uint32_t res;
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asm("r7 = %1\n\t"
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"r7 = swiz(r7)\n\t"
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"%0 = r7\n\t"
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: "=r"(res) : "r"(x) : "r7");
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return res;
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}
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static void test_swiz(void)
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{
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2023-05-19 18:05:59 +02:00
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check32(swiz(0x11223344), 0x44332211);
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2023-04-28 01:00:06 +02:00
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}
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int main()
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{
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test_insert();
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test_insert_rp();
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test_asr_r_svw_trun();
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test_swiz();
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puts(err ? "FAIL" : "PASS");
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return err ? EXIT_FAILURE : EXIT_SUCCESS;
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}
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