[llvm] PeepholeOpt: Do not add subregister indexes to reg_sequence operands (PR #124111)

Thu Jan 30 05:58:09 PST 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-gcc-ubuntu` running on `sie-linux-worker3` while building `llvm` at step 6 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/174/builds/12286

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 6 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 2: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefixes=GFX9,GFX900 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefixes=GFX9,GFX900 /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll
RUN: at line 3: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a < /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefixes=GFX9,GFX90APLUS,GFX90A /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx90a
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefixes=GFX9,GFX90APLUS,GFX90A /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll
[1m/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll:3616:16: [0m[0;1;31merror: [0m[1mGFX90A-NEXT: is not on the line after the previous match
[0m; GFX90A-NEXT: s_mov_b32 s10, s9
[0;1;32m               ^
[0m[1m<stdin>:2963:2: [0m[0;1;30mnote: [0m[1m'next' match was here
[0m s_mov_b32 s10, s9
[0;1;32m ^
[0m[1m<stdin>:2961:11: [0m[0;1;30mnote: [0m[1mprevious match ended here
[0m ;;#ASMEND
[0;1;32m          ^
[0m[1m<stdin>:2962:1: [0m[0;1;30mnote: [0m[1mnon-matching line after previous match is here
[0m s_mov_b32 s8, s9
[0;1;32m^
[0m[1m/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll:3690:20: [0m[0;1;31merror: [0m[1mGFX90APLUS-NEXT: expected string not found in input
[0m; GFX90APLUS-NEXT: ; def s[8:9]
[0;1;32m                   ^
[0m[1m<stdin>:3037:13: [0m[0;1;30mnote: [0m[1mscanning from here
[0m ;;#ASMSTART
[0;1;32m            ^
[0m[1m<stdin>:3038:2: [0m[0;1;30mnote: [0m[1mpossible intended match here
[0m ; def s[4:5]
[0;1;32m ^
[0m[1m/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll:4141:16: [0m[0;1;31merror: [0m[1mGFX90A-NEXT: is not on the line after the previous match
[0m; GFX90A-NEXT: s_mov_b32 s10, s5
[0;1;32m               ^
[0m[1m<stdin>:3516:2: [0m[0;1;30mnote: [0m[1m'next' match was here
[0m s_mov_b32 s10, s5
[0;1;32m ^
[0m[1m<stdin>:3514:11: [0m[0;1;30mnote: [0m[1mprevious match ended here
[0m ;;#ASMEND
[0;1;32m          ^
[0m[1m<stdin>:3515:1: [0m[0;1;30mnote: [0m[1mnon-matching line after previous match is here
[0m s_mov_b32 s8, s9
[0;1;32m^
[0m[1m/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AMDGPU/shufflevector.v4i32.v2i32.ll:5044:16: [0m[0;1;31merror: [0m[1mGFX90A-NEXT: expected string not found in input
[0m; GFX90A-NEXT: ; def s[8:9]
[0;1;32m               ^
[0m[1m<stdin>:4470:13: [0m[0;1;30mnote: [0m[1mscanning from here
[0m ;;#ASMSTART
[0;1;32m            ^
...

```

</details>

https://github.com/llvm/llvm-project/pull/124111