1 /* 2 * Copyright(c) 2023 Qualcomm Innovation Center, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 /* 19 * Test instructions where the semantics write to the destination 20 * before all the operand reads have been completed. 21 * 22 * These instructions are problematic when we short-circuit the 23 * register writes because the destination and source operands could 24 * be the same TCGv. 25 * 26 * We test by forcing the read and write to be register r7. 27 */ 28 29 #include <stdint.h> 30 #include <stdlib.h> 31 #include <stdio.h> 32 33 int err; 34 35 #include "hex_test.h" 36 37 #define insert(RES, X, WIDTH, OFFSET) \ 38 asm("r7 = %1\n\t" \ 39 "r7 = insert(r7, #" #WIDTH ", #" #OFFSET ")\n\t" \ 40 "%0 = r7\n\t" \ 41 : "=r"(RES) : "r"(X) : "r7") 42 43 static void test_insert(void) 44 { 45 uint32_t res; 46 47 insert(res, 0x12345678, 8, 1); 48 check32(res, 0x123456f0); 49 insert(res, 0x12345678, 0, 1); 50 check32(res, 0x12345678); 51 insert(res, 0x12345678, 20, 16); 52 check32(res, 0x56785678); 53 } 54 55 static inline uint32_t insert_rp(uint32_t x, uint32_t width, uint32_t offset) 56 { 57 uint64_t width_offset = (uint64_t)width << 32 | offset; 58 uint32_t res; 59 asm("r7 = %1\n\t" 60 "r7 = insert(r7, %2)\n\t" 61 "%0 = r7\n\t" 62 : "=r"(res) : "r"(x), "r"(width_offset) : "r7"); 63 return res; 64 65 } 66 67 static void test_insert_rp(void) 68 { 69 check32(insert_rp(0x12345678, 8, 1), 0x123456f0); 70 check32(insert_rp(0x12345678, 63, 8), 0x34567878); 71 check32(insert_rp(0x12345678, 127, 8), 0x34567878); 72 check32(insert_rp(0x12345678, 8, 24), 0x78345678); 73 check32(insert_rp(0x12345678, 8, 63), 0x12345678); 74 check32(insert_rp(0x12345678, 8, 64), 0x00000000); 75 } 76 77 static inline uint32_t asr_r_svw_trun(uint64_t x, uint32_t y) 78 { 79 uint32_t res; 80 asm("r7 = %2\n\t" 81 "r7 = vasrw(%1, r7)\n\t" 82 "%0 = r7\n\t" 83 : "=r"(res) : "r"(x), "r"(y) : "r7"); 84 return res; 85 } 86 87 static void test_asr_r_svw_trun(void) 88 { 89 check32(asr_r_svw_trun(0x1111111122222222ULL, 5), 90 0x88881111); 91 check32(asr_r_svw_trun(0x1111111122222222ULL, 63), 92 0x00000000); 93 check32(asr_r_svw_trun(0x1111111122222222ULL, 64), 94 0x00000000); 95 check32(asr_r_svw_trun(0x1111111122222222ULL, 127), 96 0x22224444); 97 check32(asr_r_svw_trun(0x1111111122222222ULL, 128), 98 0x11112222); 99 check32(asr_r_svw_trun(0xffffffff22222222ULL, 128), 100 0xffff2222); 101 } 102 103 static inline uint32_t swiz(uint32_t x) 104 { 105 uint32_t res; 106 asm("r7 = %1\n\t" 107 "r7 = swiz(r7)\n\t" 108 "%0 = r7\n\t" 109 : "=r"(res) : "r"(x) : "r7"); 110 return res; 111 } 112 113 static void test_swiz(void) 114 { 115 check32(swiz(0x11223344), 0x44332211); 116 } 117 118 int main() 119 { 120 test_insert(); 121 test_insert_rp(); 122 test_asr_r_svw_trun(); 123 test_swiz(); 124 125 puts(err ? "FAIL" : "PASS"); 126 return err ? EXIT_FAILURE : EXIT_SUCCESS; 127 } 128