en Copyright 2015 Java http://src.rcs.uwaterloo.ca:8080/source/history/llvm-project/llvm/test/CodeGen/LoongArch/unaligned-access.ll#9d4f7f44b64d87d1068859906f43b7ce03a7388b [test][LoongArch] Add -mattr=+d option. NFCBecause most of tests assume target-abi=`lp64d`, adding thecorresponding feature is reasonable.rg -l loongarch -g '!*.s' | xargs sed -i '/mtriple=loongarch/ {/-mattr=/!{/target-abi/! s/mtriple=loongarch.. /&-mattr=+d /}}' List of files: /llvm-project/llvm/test/CodeGen/LoongArch/unaligned-access.ll Tue, 14 May 2024 11:39:47 +0000 wanglei <wanglei@loongson.cn> http://src.rcs.uwaterloo.ca:8080/source/history/llvm-project/llvm/test/CodeGen/LoongArch/unaligned-access.ll#a5c90e48b6f11bc6db7344503589648f76b16d80 [LoongArch] Switch to the Machine Scheduler (#83759)The SelectionDAG scheduling preference now becomes source order scheduling (machine scheduler generates better code -- even without there being a machine model defined for LoongArch yet). Most of the test changes are trivial instruction reorderings and differing register allocations, without any obvious performance impact. This is similar to commit: 3d0fbafd0bce43bb9106230a45d1130f7a40e5ec List of files: /llvm-project/llvm/test/CodeGen/LoongArch/unaligned-access.ll Tue, 05 Mar 2024 01:15:44 +0000 wanglei <wanglei@loongson.cn> http://src.rcs.uwaterloo.ca:8080/source/history/llvm-project/llvm/test/CodeGen/LoongArch/unaligned-access.ll#47601815ec3a4f31c797c75748af08acfabc46dc [LoongArch] Define `ual` feature and override `allowsMisalignedMemoryAccesses`Some CPUs do not allow memory accesses to be unaligned, e.g. 2k1000lawho uses the la264 core on which misaligned access will trigger anexception.In this patch, a backend feature called `ual` is defined to decribewhether the CPU supports unaligned memroy accesses. And this featurecan be toggled by clang options `-m[no-]unaligned-access` or thealiases `-m[no-]strict-align`. When this feature is on,`allowsMisalignedMemoryAccesses` sets the speed number to 1 and returnstrue that allows the codegen to generate unaligned memory access insns.Clang options `-m[no-]unaligned-access` are moved from `m_arm_Features_Group`to `m_Group` because now more than one targets use them. And a testis added to show that they remain unused on a target that does notsupport them. In addition, to keep compatible with gcc, a new alias`-mno-strict-align` is added which is equal to `-munaligned-access`.The feature name `ual` is consistent with linux kernel [1] and theoutput of `lscpu` or `/proc/cpuinfo` [2].There is an `LLT` variant of `allowsMisalignedMemoryAccesses`, butseems that curently it is only used in GlobalISel which LoongArchdoesn't support yet. So this variant is not implemented in this patch.[1]: https://github.com/torvalds/linux/blob/master/arch/loongarch/include/asm/cpu.h#L77[2]: https://github.com/torvalds/linux/blob/master/arch/loongarch/kernel/proc.c#L75Reviewed By: xen0nDifferential Revision: https://reviews.llvm.org/D149946 List of files: /llvm-project/llvm/test/CodeGen/LoongArch/unaligned-access.ll Wed, 07 Jun 2023 03:20:30 +0000 Weining Lu <luweining@loongson.cn>