llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-sie-win` 
running on `sie-win-worker` while building `clang,llvm` at step 7 
"test-build-unified-tree-check-all".

Full details are available at: 
https://lab.llvm.org/buildbot/#/builders/46/builds/15407

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

```
Step 7 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'Clang :: Headers/gpuintrin_lang.c' FAILED 
********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
z:\b\llvm-clang-x86_64-sie-win\build\bin\clang.exe -cc1 -internal-isystem 
Z:\b\llvm-clang-x86_64-sie-win\build\lib\clang\21\include -nostdsysteminc 
-internal-isystem 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers/Inputs/include   
 -internal-isystem 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers/../../lib/Headers/cuda_wrappers
    -internal-isystem 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers/../../lib/Headers/
    -fcuda-is-device -triple nvptx64 -emit-llvm 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers\gpuintrin_lang.c 
-o -  | z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers\gpuintrin_lang.c 
--check-prefix=CUDA
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\clang.exe' -cc1 
-internal-isystem 'Z:\b\llvm-clang-x86_64-sie-win\build\lib\clang\21\include' 
-nostdsysteminc -internal-isystem 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers/Inputs/include' 
-internal-isystem 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers/../../lib/Headers/cuda_wrappers'
 -internal-isystem 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers/../../lib/Headers/'
 -fcuda-is-device -triple nvptx64 -emit-llvm 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers\gpuintrin_lang.c'
 -o -
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers\gpuintrin_lang.c'
 --check-prefix=CUDA
# .---command stderr------------
# | 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers\gpuintrin_lang.c:39:15:
 error: CUDA-NEXT: expected string not found in input
# | // CUDA-NEXT: [[TMP0:%.*]] = call range(i32 0, 1024) i32 
@llvm.nvvm.read.ptx.sreg.tid.x()
# |               ^
# | <stdin>:8:7: note: scanning from 
here
# | entry:
# |       ^
# | <stdin>:9:2: note: possible 
intended match here
# |  %0 = call i32 @llvm.nvvm.read.ptx.sreg.tid.x()
# |  ^
# | 
# | Input file: <stdin>
# | Check file: 
Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers\gpuintrin_lang.c
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             1: ; ModuleID = 
'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\clang\test\Headers\gpuintrin_lang.c'
 
# |             2: source_filename = 
"Z:\\b\\llvm-clang-x86_64-sie-win\\llvm-project\\clang\\test\\Headers\\gpuintrin_lang.c"
 
# |             3: target datalayout = 
"e-p6:32:32-i64:64-i128:128-v16:16-v32:32-n16:32:64" 
# |             4: target triple = "nvptx64" 
# |             5:  
# |             6: ; Function Attrs: convergent 
noinline nounwind optnone 
# |             7: define dso_local i32 @foo() #0 
{ 
# | label:36'0     ^~~~~~~~~~~~~~~~~~~~~~~~~~
# | label:36'1     ^~~~~~~~~~~~~~~~~~~~~~~~~~
# | same:37'0                                ^~~~~~
# | same:37'1                                   ^    
captured var "ATTR0"
# |             8: 
entry: 
# | next:38'0      ^~~~~~
# | next:38'1      ^~~~~~  captured var "ENTRY"
# | next:39'0            X error: no match found
# |             9:  %0 = call i32 
@llvm.nvvm.read.ptx.sreg.tid.x() 
# | next:39'0      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# | next:39'1       ?                                 
              possible intended match
# |            10:  ret i32 %0 
# | next:39'0      ~~~~~~~~~~~~
# |            11: } 
# | next:39'0      ~~
# |            12:  
...

```

</details>

https://github.com/llvm/llvm-project/pull/136196
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