[llvm] AArch64: Add tests for atomicrmw fp operations (PR #103701)

Thu Aug 29 08:49:00 PDT 2024

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/4162

<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/AArch64/atomicrmw-fmin.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=aarch64-linux-gnu -O1 -fast-isel=0 -global-isel=false /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AArch64/atomicrmw-fmin.ll -o - | /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefix=NOLSE /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AArch64/atomicrmw-fmin.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/FileCheck -check-prefix=NOLSE /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AArch64/atomicrmw-fmin.ll
+ /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/bin/llc -mtriple=aarch64-linux-gnu -O1 -fast-isel=0 -global-isel=false /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AArch64/atomicrmw-fmin.ll -o -
[1m/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AArch64/atomicrmw-fmin.ll:636:15: [0m[0;1;31merror: [0m[1mNOLSE-NEXT: is not on the line after the previous match
[0m; NOLSE-NEXT: str q0, [sp, #48]
[0;1;32m              ^
[0m[1m<stdin>:275:2: [0m[0;1;30mnote: [0m[1m'next' match was here
[0m str q0, [sp, #48]
[0;1;32m ^
[0m[1m<stdin>:271:10: [0m[0;1;30mnote: [0m[1mprevious match ended here
[0m bl fminl
[0;1;32m         ^
[0m[1m<stdin>:272:1: [0m[0;1;30mnote: [0m[1mnon-matching line after previous match is here
[0m str q0, [sp, #64]
[0;1;32m^
[0m
Input file: <stdin>
Check file: /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/test/CodeGen/AArch64/atomicrmw-fmin.ll

-dump-input=help explains the following input dump.

Input was:
<<<<<<
[1m[0m[0;1;30m              1: [0m[1m[0;1;46m .text [0m
[0;1;30m              2: [0m[1m[0;1;46m .file "atomicrmw-fmin.ll" [0m
[0;1;30m              3: [0m[1m[0;1;46m .globl test_atomicrmw_fmin_f16_seq_cst_align2 // -- Begin function test_atomicrmw_fmin_f16_seq_cst_align2 [0m
[0;1;30m              4: [0m[1m[0;1;46m .p2align 2 [0m
[0;1;30m              5: [0m[1m[0;1;46m .type test_atomicrmw_fmin_f16_seq_cst_align2, at function [0m
[0;1;30m              6: [0m[1m[0;1;46m[0mtest_atomicrmw_fmin_f16_seq_cst_align2:[0;1;46m // @test_atomicrmw_fmin_f16_seq_cst_align2 [0m
[0;1;32mlabel:10'0       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[0m[0;1;32mlabel:10'1       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[0m[0;1;30m              7: [0m[1m[0;1;46m[0m// %bb.0:[0;1;46m [0m
[0;1;32mcheck:11         ^~~~~~~~~
[0m[0;1;30m              8: [0m[1m[0;1;46m [0mfcvt s1, h0[0;1;46m [0m
[0;1;32mnext:12           ^~~~~~~~~~~
[0m[0;1;30m              9: [0m[1m[0;1;46m [0mldr h0, [x0][0;1;46m [0m
[0;1;32mnext:13           ^~~~~~~~~~~~
[0m[0;1;30m             10: [0m[1m[0;1;46m [0mb .LBB0_2[0;1;46m [0m
[0;1;32mnext:14           ^~~~~~~~~
[0m[0;1;30m             11: [0m[1m[0;1;46m[0m.LBB0_1: // %atomicrmw.start[0;1;46m [0m
[0;1;32mnext:15          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
[0m[0;1;30m             12: [0m[1m[0;1;46m [0m// in Loop: Header=BB0_2 Depth=1[0;1;46m [0m
[0;1;32mnext:16           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[0m[0;1;30m             13: [0m[1m[0;1;46m [0mfmov s0, w10[0;1;46m [0m
[0;1;32mnext:17           ^~~~~~~~~~~~
...

```

</details>

https://github.com/llvm/llvm-project/pull/103701