| commit | fc44b31c1af713147c91c734e00857d084e2b6b9 | [log] [tgz] |
|---|---|---|
| author | Simon Atanasyan <simon@atanasyan.com> | Fri Nov 16 05:30:47 2018 +0000 |
| committer | Simon Atanasyan <simon@atanasyan.com> | Fri Nov 16 05:30:47 2018 +0000 |
| tree | 9783fac6f08b402c74058b31ae43f5538e4d4f1b | |
| parent | f90d15ca84b869076a598d1b31b28483bc820f26 [diff] |
[ELF][MIPS] Use MIPS R6 `sigrie` as a trap instruction Current value using as a trap instruction (0xefefefef) is not a good choice for MIPS because it's a valid MIPS instruction `swc3 $15,-4113(ra)`. This patch replaces 0xefefefef by 0x04170001. For all MIPS ISA revisions before R6, this value is just invalid instruction. Starting from MIPS R6 it's a valid instruction `sigrie 1` which signals a Reserved Instruction exception. mips-traps.s test case is added to test trap encoding. Other test cases are modified to remove redundant checking. Differential revision: https://reviews.llvm.org/D54154 git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@347029 91177308-0d34-0410-b5e6-96231b3b80d8
This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.
lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.
In order to make sure various developers can evaluate patches over the same tests, we create a collection of self contained programs.
It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz
The current sha256 is 10eec685463d5a8bbf08d77f4ca96282161d396c65bd97dc99dbde644a31610f.