projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 702d582e PG |
1 | /* Tests the jump instructions. |
| 2 | ||
| b811d2c2 | 3 | Copyright (C) 2017-2020 Free Software Foundation, Inc. |
| 702d582e PG |
4 | |
| 5 | This program is free software; you can redistribute it and/or modify | |
| 6 | it under the terms of the GNU General Public License as published by | |
| 7 | the Free Software Foundation; either version 3 of the License, or | |
| 8 | (at your option) any later version. | |
| 9 | ||
| 10 | This program is distributed in the hope that it will be useful, | |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | GNU General Public License for more details. | |
| 14 | ||
| 15 | You should have received a copy of the GNU General Public License | |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 17 | ||
| 18 | # mach: or1k | |
| 19 | # output: report(0x48000000);\n | |
| 20 | # output: report(0x00000005);\n | |
| 21 | # output: report(0x00000000);\n | |
| 22 | # output: report(0x00000000);\n | |
| 23 | # output: report(0x00000000);\n | |
| 24 | # output: \n | |
| 25 | # output: report(0x48000000);\n | |
| 26 | # output: report(0x00000009);\n | |
| 27 | # output: report(0x00000000);\n | |
| 28 | # output: report(0x00000001);\n | |
| 29 | # output: report(0x00000000);\n | |
| 30 | # output: \n | |
| 31 | # output: report(0x44000000);\n | |
| 32 | # output: report(0x00000005);\n | |
| 33 | # output: report(0x00000000);\n | |
| 34 | # output: report(0x00000000);\n | |
| 35 | # output: report(0x00000000);\n | |
| 36 | # output: \n | |
| 37 | # output: report(0x44000000);\n | |
| 38 | # output: report(0x00000009);\n | |
| 39 | # output: report(0x00000000);\n | |
| 40 | # output: report(0x00000000);\n | |
| 41 | # output: report(0x00000000);\n | |
| 42 | # output: \n | |
| 43 | # output: exit(0)\n | |
| 44 | ||
| 45 | #include "or1k-asm-test-helpers.h" | |
| 46 | ||
| 47 | /* Tests a jump instruction using a register destination. | |
| 48 | Checks whether the jump succeeds, or whether an exception is triggered | |
| 49 | (but not if the right exception was triggered yet). | |
| 50 | ||
| 51 | We manually construct the opcode, to allow us to force R9 into the | |
| 52 | destination field, to test exception handling. Usually the assembler | |
| 53 | would prevent this. | |
| 54 | ||
| 55 | Do not specify R31 as the register to use for the jump, as it's used | |
| 56 | internally. */ | |
| 57 | ||
| 58 | .macro TEST_JUMP opcode_value dest_register_number alignment_offset | |
| 59 | REPORT_IMMEDIATE_TO_CONSOLE \opcode_value | |
| 60 | REPORT_IMMEDIATE_TO_CONSOLE \dest_register_number | |
| 61 | REPORT_IMMEDIATE_TO_CONSOLE \alignment_offset | |
| 62 | LOAD_IMMEDIATE r\dest_register_number, 51f + \alignment_offset | |
| 63 | /* Generate the jump opcode. */ | |
| 64 | \@1$: OR1K_DELAYED_NOP \ | |
| 65 | (.word ( \opcode_value | (\dest_register_number << 11) )) | |
| 66 | /* If the jump failed, we land here. */ | |
| 67 | REPORT_IMMEDIATE_TO_CONSOLE 1 | |
| 68 | OR1K_DELAYED_NOP (l.j 52f) | |
| 69 | /* If the jump succeeds, we land here. */ | |
| 70 | 51: REPORT_IMMEDIATE_TO_CONSOLE 0 | |
| 71 | 52: REPORT_EXCEPTION \@1$ | |
| 72 | PRINT_NEWLINE_TO_CONSOLE | |
| 73 | .endm | |
| 74 | ||
| 75 | STANDARD_TEST_ENVIRONMENT | |
| 76 | ||
| 77 | .section .text | |
| 78 | start_tests: | |
| 79 | PUSH LINK_REGISTER_R9 | |
| 80 | ||
| 81 | /* Test l.jalr (jump and link register) */ | |
| 82 | TEST_JUMP 0x48000000, 5, 0 | |
| 83 | /* TODO: The sim does not support unaligned memory access yet. | |
| 84 | TEST_JUMP 0x48000000, 5, 1 | |
| 85 | TEST_JUMP 0x48000000, 5, 2 | |
| 86 | TEST_JUMP 0x48000000, 5, 3 | |
| 87 | */ | |
| 88 | ||
| 89 | /* Test with link register as the destination. This is not | |
| 90 | allowed. */ | |
| 91 | TEST_JUMP 0x48000000, 9, 0 | |
| 92 | ||
| 93 | /* Test l.jr (jump register) */ | |
| 94 | TEST_JUMP 0x44000000, 5, 0 | |
| 95 | /* TODO: The sim does not support unaligned memory access yet. | |
| 96 | TEST_JUMP 0x44000000, 5, 1 | |
| 97 | TEST_JUMP 0x44000000, 5, 2 | |
| 98 | TEST_JUMP 0x44000000, 5, 3 | |
| 99 | */ | |
| 100 | ||
| 101 | /* Test with link register as the destination. */ | |
| 102 | TEST_JUMP 0x44000000, 9, 0 | |
| 103 | ||
| 104 | POP LINK_REGISTER_R9 | |
| 105 | RETURN_TO_LINK_REGISTER_R9 |