[llvm] [X86][AVX10.2] Skip select-minmax fusion for BF16 (PR #194987)

Thu Apr 30 14:06:13 PDT 2026

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Linux-->
# :penguin: Linux x64 Test Results

* 173531 tests passed
* 3278 tests skipped
* 2 tests failed

## Failed Tests
(click on a test name to see its output)

### LLVM
<details>
<summary>LLVM.CodeGen/X86/avx10_2_512bf16-intrinsics.ll</summary>

```
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/X86/avx10_2_512bf16-intrinsics.ll -verify-machineinstrs -mtriple=x86_64-unknown-unknown --show-mc-encoding -mattr=+avx10.2 | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/X86/avx10_2_512bf16-intrinsics.ll --check-prefixes=CHECK,X64
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -verify-machineinstrs -mtriple=x86_64-unknown-unknown --show-mc-encoding -mattr=+avx10.2
# .---command stderr------------
# | LLVM ERROR: Cannot select: intrinsic %llvm.x86.avx10.vminbf16512
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# | Stack dump:
# | 0.	Program arguments: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -verify-machineinstrs -mtriple=x86_64-unknown-unknown --show-mc-encoding -mattr=+avx10.2
# | 1.	Running pass 'Function Pass Manager' on module '<stdin>'.
# | 2.	Running pass 'X86 DAG->DAG Instruction Selection' on function '@test_int_x86_avx10_min_bf16_512'
# |  #0 0x00000000086941e8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/Unix/Signals.inc:880:13
# |  #1 0x0000000008691151 llvm::sys::RunSignalHandlers() /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/Signals.cpp:109:18
# |  #2 0x0000000008695001 SignalHandler(int, siginfo_t*, void*) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/Unix/Signals.inc:448:38
# |  #3 0x00007f1fa9b22330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
# |  #4 0x00007f1fa9b7bb2c pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x9eb2c)
# |  #5 0x00007f1fa9b2227e raise (/lib/x86_64-linux-gnu/libc.so.6+0x4527e)
# |  #6 0x00007f1fa9b058ff abort (/lib/x86_64-linux-gnu/libc.so.6+0x288ff)
# |  #7 0x00000000085efe05 llvm::report_fatal_error(llvm::Twine const&, bool) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/ErrorHandling.cpp:137:5
# |  #8 0x0000000008468ba8 getValueType /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/CodeGen/SelectionDAGNodes.h:1133:5
# |  #9 0x0000000008468ba8 getValueType /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/CodeGen/SelectionDAGNodes.h:1289:16
# | #10 0x0000000008468ba8 llvm::SelectionDAGISel::CannotYetSelect(llvm::SDNode*) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:4643:43
# | #11 0x0000000008467b98 back /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/ADT/SmallVector.h:318:5
# | #12 0x0000000008467b98 llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*, unsigned char const*, unsigned int, unsigned char const*) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:4561:21
# | #13 0x00000000069e83b9 untrack /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/TrackingMDRef.h:89:9
# | #14 0x00000000069e83b9 ~TrackingMDRef /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/TrackingMDRef.h:55:22
# | #15 0x00000000069e83b9 ~TypedTrackingMDRef /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/TrackingMDRef.h:106:26
# | #16 0x00000000069e83b9 ~DebugLoc /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/DebugLoc.h:123:7
# | #17 0x00000000069e83b9 ~SDLoc /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/CodeGen/SelectionDAGNodes.h:1253:7
# | #18 0x00000000069e83b9 (anonymous namespace)::X86DAGToDAGISel::Select(llvm::SDNode*) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp:6856:1
# | #19 0x000000000845c344 begin /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/ADT/SmallVector.h:276:45
# | #20 0x000000000845c344 end /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/ADT/SmallVector.h:278:27
# | #21 0x000000000845c344 ~SmallVector /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/ADT/SmallVector.h:1229:46
# | #22 0x000000000845c344 llvm::SelectionDAGISel::DoInstructionSelection() /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1398:5
# | #23 0x000000000845b2cd ~TimeRegion /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Support/Timer.h:167:9
# | #24 0x000000000845b2cd llvm::SelectionDAGISel::CodeGenAndEmitDAG() /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1167:3
# | #25 0x0000000008458fe3 llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1692:8
# | #26 0x00000000084560d1 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:660:22
# | #27 0x00000000084537a0 llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:401:20
# | #28 0x000000000732f5a3 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/MachineFunctionPass.cpp:0:10
# | #29 0x00000000078b1598 llvm::FPPassManager::runOnFunction(llvm::Function&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:0:27
# | #30 0x00000000078b9042 llvm::FPPassManager::runOnModule(llvm::Module&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1444:13
# | #31 0x00000000078b200b runOnModule /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1513:27
# | #32 0x00000000078b200b llvm::legacy::PassManagerImpl::run(llvm::Module&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:531:44
# | #33 0x0000000005005f7b compileModule(char**, llvm::SmallVectorImpl<llvm::PassPlugin>&, llvm::LLVMContext&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/tools/llc/llc.cpp:882:17
# | #34 0x0000000005002ec3 main /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/tools/llc/llc.cpp:460:13
# | #35 0x00007f1fa9b071ca (/lib/x86_64-linux-gnu/libc.so.6+0x2a1ca)
# | #36 0x00007f1fa9b0728b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28b)
# | #37 0x0000000004ffe9e5 _start (/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc+0x4ffe9e5)
# `-----------------------------
# error: command failed with exit status: -6
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/X86/avx10_2_512bf16-intrinsics.ll --check-prefixes=CHECK,X64
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/X86/avx10_2_512bf16-intrinsics.ll --check-prefixes=CHECK,X64
# `-----------------------------
# error: command failed with exit status: 2

--

```
</details>
<details>
<summary>LLVM.CodeGen/X86/avx10_2bf16-intrinsics.ll</summary>

```
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/X86/avx10_2bf16-intrinsics.ll -verify-machineinstrs -mtriple=x86_64-unknown-unknown --show-mc-encoding -mattr=+avx10.2 | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/X86/avx10_2bf16-intrinsics.ll --check-prefixes=CHECK,X64
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -verify-machineinstrs -mtriple=x86_64-unknown-unknown --show-mc-encoding -mattr=+avx10.2
# .---command stderr------------
# | LLVM ERROR: Cannot select: intrinsic %llvm.x86.avx10.vminbf16256
# | PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace and instructions to reproduce the bug.
# | Stack dump:
# | 0.	Program arguments: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc -verify-machineinstrs -mtriple=x86_64-unknown-unknown --show-mc-encoding -mattr=+avx10.2
# | 1.	Running pass 'Function Pass Manager' on module '<stdin>'.
# | 2.	Running pass 'X86 DAG->DAG Instruction Selection' on function '@test_int_x86_avx10_min_bf16_256'
# |  #0 0x00000000086941e8 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/Unix/Signals.inc:880:13
# |  #1 0x0000000008691151 llvm::sys::RunSignalHandlers() /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/Signals.cpp:109:18
# |  #2 0x0000000008695001 SignalHandler(int, siginfo_t*, void*) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/Unix/Signals.inc:448:38
# |  #3 0x00007fcce8d6f330 (/lib/x86_64-linux-gnu/libc.so.6+0x45330)
# |  #4 0x00007fcce8dc8b2c pthread_kill (/lib/x86_64-linux-gnu/libc.so.6+0x9eb2c)
# |  #5 0x00007fcce8d6f27e raise (/lib/x86_64-linux-gnu/libc.so.6+0x4527e)
# |  #6 0x00007fcce8d528ff abort (/lib/x86_64-linux-gnu/libc.so.6+0x288ff)
# |  #7 0x00000000085efe05 llvm::report_fatal_error(llvm::Twine const&, bool) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Support/ErrorHandling.cpp:137:5
# |  #8 0x0000000008468ba8 getValueType /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/CodeGen/SelectionDAGNodes.h:1133:5
# |  #9 0x0000000008468ba8 getValueType /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/CodeGen/SelectionDAGNodes.h:1289:16
# | #10 0x0000000008468ba8 llvm::SelectionDAGISel::CannotYetSelect(llvm::SDNode*) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:4643:43
# | #11 0x0000000008467b98 back /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/ADT/SmallVector.h:318:5
# | #12 0x0000000008467b98 llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*, unsigned char const*, unsigned int, unsigned char const*) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:4561:21
# | #13 0x00000000069e83b9 untrack /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/TrackingMDRef.h:89:9
# | #14 0x00000000069e83b9 ~TrackingMDRef /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/TrackingMDRef.h:55:22
# | #15 0x00000000069e83b9 ~TypedTrackingMDRef /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/TrackingMDRef.h:106:26
# | #16 0x00000000069e83b9 ~DebugLoc /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/IR/DebugLoc.h:123:7
# | #17 0x00000000069e83b9 ~SDLoc /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/CodeGen/SelectionDAGNodes.h:1253:7
# | #18 0x00000000069e83b9 (anonymous namespace)::X86DAGToDAGISel::Select(llvm::SDNode*) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp:6856:1
# | #19 0x000000000845c344 begin /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/ADT/SmallVector.h:276:45
# | #20 0x000000000845c344 end /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/ADT/SmallVector.h:278:27
# | #21 0x000000000845c344 ~SmallVector /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/ADT/SmallVector.h:1229:46
# | #22 0x000000000845c344 llvm::SelectionDAGISel::DoInstructionSelection() /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1398:5
# | #23 0x000000000845b2cd ~TimeRegion /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/include/llvm/Support/Timer.h:167:9
# | #24 0x000000000845b2cd llvm::SelectionDAGISel::CodeGenAndEmitDAG() /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1167:3
# | #25 0x0000000008458fe3 llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:1692:8
# | #26 0x00000000084560d1 llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:660:22
# | #27 0x00000000084537a0 llvm::SelectionDAGISelLegacy::runOnMachineFunction(llvm::MachineFunction&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp:401:20
# | #28 0x000000000732f5a3 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/CodeGen/MachineFunctionPass.cpp:0:10
# | #29 0x00000000078b1598 llvm::FPPassManager::runOnFunction(llvm::Function&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:0:27
# | #30 0x00000000078b9042 llvm::FPPassManager::runOnModule(llvm::Module&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1444:13
# | #31 0x00000000078b200b runOnModule /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:1513:27
# | #32 0x00000000078b200b llvm::legacy::PassManagerImpl::run(llvm::Module&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/lib/IR/LegacyPassManager.cpp:531:44
# | #33 0x0000000005005f7b compileModule(char**, llvm::SmallVectorImpl<llvm::PassPlugin>&, llvm::LLVMContext&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char>>&) /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/tools/llc/llc.cpp:882:17
# | #34 0x0000000005002ec3 main /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/tools/llc/llc.cpp:460:13
# | #35 0x00007fcce8d541ca (/lib/x86_64-linux-gnu/libc.so.6+0x2a1ca)
# | #36 0x00007fcce8d5428b __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28b)
# | #37 0x0000000004ffe9e5 _start (/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc+0x4ffe9e5)
# `-----------------------------
# error: command failed with exit status: -6
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/X86/avx10_2bf16-intrinsics.ll --check-prefixes=CHECK,X64
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/X86/avx10_2bf16-intrinsics.ll --check-prefixes=CHECK,X64
# `-----------------------------
# error: command failed with exit status: 2

--

```
</details>

If these failures are unrelated to your changes (for example tests are broken or flaky at HEAD), please open an issue at https://github.com/llvm/llvm-project/issues and add the `infrastructure` label.

https://github.com/llvm/llvm-project/pull/194987