[clang] [llvm] [X86] Remove AMX-TRANSPOSE (PR #165556)

Fri Oct 31 05:00:13 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `flang-x86_64-windows` running on `minipc-ryzen-win` while building `clang,llvm` at step 6 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/166/builds/3551

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

```
Step 6 (build-unified-tree) failure: build (failure)
...
3.327 [7248/6/1] Building CXX object lib\Demangle\CMakeFiles\LLVMDemangle.dir\Demangle.cpp.obj
3.371 [7247/6/2] Building CXX object lib\Demangle\CMakeFiles\LLVMDemangle.dir\DLangDemangle.cpp.obj
3.385 [7246/6/3] Building CXX object lib\Demangle\CMakeFiles\LLVMDemangle.dir\MicrosoftDemangleNodes.cpp.obj
3.528 [7245/6/4] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\ABIBreak.cpp.obj
4.237 [7244/6/5] Building CXX object lib\Demangle\CMakeFiles\LLVMDemangle.dir\RustDemangle.cpp.obj
7.039 [7243/6/6] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\APFixedPoint.cpp.obj
7.549 [7242/6/7] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\AMDGPUMetadata.cpp.obj
7.553 [7241/6/8] Building CXX object lib\Demangle\CMakeFiles\LLVMDemangle.dir\ItaniumDemangle.cpp.obj
9.752 [7240/6/9] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\APFloat.cpp.obj
9.950 [7239/6/10] Building CXX object lib\Demangle\CMakeFiles\LLVMDemangle.dir\MicrosoftDemangle.cpp.obj
FAILED: [code=3221225477] lib/Demangle/CMakeFiles/LLVMDemangle.dir/MicrosoftDemangle.cpp.obj 
ccache C:\PROGRA~1\MICROS~2\2022\COMMUN~1\VC\Tools\MSVC\1444~1.352\bin\Hostx64\x64\cl.exe  /nologo /TP -DGTEST_HAS_RTTI=0 -DUNICODE -D_CRT_NONSTDC_NO_DEPRECATE -D_CRT_NONSTDC_NO_WARNINGS -D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS -D_GLIBCXX_ASSERTIONS -D_HAS_EXCEPTIONS=0 -D_SCL_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS -D_UNICODE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -IC:\buildbot\flang-x86_64-windows\build\lib\Demangle -IC:\buildbot\flang-x86_64-windows\llvm-project\llvm\lib\Demangle -IC:\buildbot\flang-x86_64-windows\build\include -IC:\buildbot\flang-x86_64-windows\llvm-project\llvm\include /DWIN32 /D_WINDOWS   /Zc:inline /Zc:preprocessor /Zc:__cplusplus /Oi /bigobj /permissive- /W4 -wd4141 -wd4146 -wd4244 -wd4267 -wd4291 -wd4351 -wd4456 -wd4457 -wd4458 -wd4459 -wd4503 -wd4624 -wd4722 -wd4100 -wd4127 -wd4512 -wd4505 -wd4610 -wd4510 -wd4702 -wd4245 -wd4706 -wd4310 -wd4701 -wd4703 -wd4389 -wd4611 -wd4805 -wd4204 -wd4577 -wd4091 -wd4592 -wd4319 -wd4709 -wd5105 -wd4324 -wd4251 -wd4275 -w14062 -we4238 /Gw /O2 /Ob2  -std:c++17 -MD  /EHs-c- /GR- -UNDEBUG /showIncludes /Folib\Demangle\CMakeFiles\LLVMDemangle.dir\MicrosoftDemangle.cpp.obj /Fdlib\Demangle\CMakeFiles\LLVMDemangle.dir\LLVMDemangle.pdb /FS -c C:\buildbot\flang-x86_64-windows\llvm-project\llvm\lib\Demangle\MicrosoftDemangle.cpp
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\include\xstring(547): fatal error C1001: Internal compiler error.
(compiler file 'msc1.cpp', line 1589)
 To work around this problem, try simplifying or changing the program near the locations listed above.
If possible please provide a repro here: https://developercommunity.visualstudio.com 
Please choose the Technical Support command on the Visual C++ 
 Help menu, or open the Technical Support help file for more information
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\include\xstring(547): note: the template instantiation context (the oldest one first) is
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.44.35207\include\xstring(541): note: while compiling class template 'std::basic_string'
INTERNAL COMPILER ERROR in 'C:\PROGRA~1\MICROS~2\2022\COMMUN~1\VC\Tools\MSVC\1444~1.352\bin\Hostx64\x64\cl.exe'
    Please choose the Technical Support command on the Visual C++
    Help menu, or open the Technical Support help file for more information
9.966 [7239/5/11] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\APSInt.cpp.obj
10.257 [7239/4/12] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\APInt.cpp.obj
10.895 [7239/3/13] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\ARMBuildAttributes.cpp.obj
11.064 [7239/2/14] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\AArch64BuildAttributes.cpp.obj
11.220 [7239/1/15] Building CXX object lib\Support\CMakeFiles\LLVMSupport.dir\AArch64AttributeParser.cpp.obj
ninja: build stopped: subcommand failed.
Cache directory:      C:\Users\buildbot-worker\AppData\Local\ccache
Config file:          C:\Users\buildbot-worker\AppData\Local\ccache\ccache.conf
System config file:   C:\ProgramData\ccache\ccache.conf
Stats updated:        10/31/25 04:59:52
Cacheable calls:         14 /  15 (93.33%)
  Hits:                   0 /  14 ( 0.00%)
    Direct:               0
    Preprocessed:         0
  Misses:                14 /  14 (100.0%)
Uncacheable calls:        1 /  15 ( 6.67%)
  Compilation failed:     1 /   1 (100.0%)
Successful lookups:
  Direct:                 0 /  15 ( 0.00%)
  Preprocessed:           0 /  15 ( 0.00%)
Local storage:
  Cache size (GB):      5.0 / 5.0 (99.78%)
  Files:              16155
  Hits:                   0 /  14 ( 0.00%)
  Misses:                14 /  14 (100.0%)
  Reads:                 30

```

</details>

https://github.com/llvm/llvm-project/pull/165556