[Mlir-commits] [llvm] [mlir] [NVPTX] Add support for barrier.cta.red.* instructions (PR #172541)

Thu Dec 18 18:51:02 PST 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-nvptx-nvidia-win` running on `as-builder-8` while building `llvm,mlir` at step 7 "test-build-unified-tree-check-llvm".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/54/builds/15671

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

```
Step 7 (test-build-unified-tree-check-llvm) failure: test (failure)
******************** TEST 'LLVM :: CodeGen/NVPTX/barrier.ll' FAILED ********************
Exit Code: 4294967295

Command Output (stdout):
--
# RUN: at line 2
c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\llc.exe < C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\CodeGen\NVPTX\barrier.ll -mtriple=nvptx64 -mcpu=sm_30 -mattr=+ptx60 | c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\filecheck.exe C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\CodeGen\NVPTX\barrier.ll
# executed command: 'c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\llc.exe' -mtriple=nvptx64 -mcpu=sm_30 -mattr=+ptx60
# executed command: 'c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\filecheck.exe' 'C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\CodeGen\NVPTX\barrier.ll'
# RUN: at line 3
c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\llc.exe < C:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\llvm-project\llvm\test\CodeGen\NVPTX\barrier.ll -mtriple=nvptx64 -mcpu=sm_30 -mattr=+ptx60 | c:/buildbot/latest-cuda/bin/ptxas.exe -c -
# executed command: 'c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\bin\llc.exe' -mtriple=nvptx64 -mcpu=sm_30 -mattr=+ptx60
# executed command: c:/buildbot/latest-cuda/bin/ptxas.exe -c -
# .---command stdout------------
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 139; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 140; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 141; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 142; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 163; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 164; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 165; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 166; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 167; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 168; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 169; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 170; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 189; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 190; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 191; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 192; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 213; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 214; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 215; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 216; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 217; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 218; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 219; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 220; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 239; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 240; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 241; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 242; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 263; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 264; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 265; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 266; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 267; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 268; error   : Unexpected instruction types specified for 'bar.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 269; error   : Unexpected instruction types specified for 'barrier.red'
# | ptxas c:\buildbot\as-builder-8\llvm-nvptx-nvidia-win\build\lit-tmp-jqes8lm7/tmpxft_00006ff8_00000000-0_stdin, line 270; error   : Unexpected instruction types specified for 'barrier.red'
...

```

</details>

https://github.com/llvm/llvm-project/pull/172541