[llvm-branch-commits] [llvm] InstCombine: Handle fsub in SimplifyDemandedFPClass (PR #175852)

[via llvm-branch-commits]

github-actions[bot] wrote:

<!--PREMERGE ADVISOR COMMENT: Windows-->
# :window: Windows x64 Test Results

* 129460 tests passed
* 2863 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.Transforms/Attributor/nofpclass.ll</summary>

```
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 2
c:\_work\llvm-project\llvm-project\build\bin\opt.exe -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-annotate-decl-cs -use-constant-fp-for-scalable-splat=false -S < C:\_work\llvm-project\llvm-project\llvm\test\Transforms\Attributor\nofpclass.ll | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe --allow-unused-prefixes C:\_work\llvm-project\llvm-project\llvm\test\Transforms\Attributor\nofpclass.ll --check-prefixes=CHECK,CHECK-CV,TUNIT,TUNIT-CV
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\opt.exe' -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-annotate-decl-cs -use-constant-fp-for-scalable-splat=false -S
# .---command stderr------------
# | Assertion failed: Known.isUnknown() && "should not be called with known information", file C:\_work\llvm-project\llvm-project\llvm\lib\Analysis\ValueTracking.cpp, line 4960
# | 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: c:\\_work\\llvm-project\\llvm-project\\build\\bin\\opt.exe -aa-pipeline=basic-aa -passes=attributor -attributor-manifest-internal -attributor-annotate-decl-cs -use-constant-fp-for-scalable-splat=false -S
# | 1.	Running pass "attributor" on module "<stdin>"
# | Exception Code: 0xC000001D
# |  #0 0x00007ff6357b8316 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x908316)
# |  #1 0x00007fff1dd3bb04 (C:\Windows\System32\ucrtbase.dll+0x7bb04)
# |  #2 0x00007fff1dd3cad1 (C:\Windows\System32\ucrtbase.dll+0x7cad1)
# |  #3 0x00007fff1dd3e4a1 (C:\Windows\System32\ucrtbase.dll+0x7e4a1)
# |  #4 0x00007fff1dd3e6e1 (C:\Windows\System32\ucrtbase.dll+0x7e6e1)
# |  #5 0x00007ff635b5fb0b (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0xcafb0b)
# |  #6 0x00007ff635b61ef9 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0xcb1ef9)
# |  #7 0x00007ff635b67c37 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0xcb7c37)
# |  #8 0x00007ff635b683f7 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0xcb83f7)
# |  #9 0x00007ff6385e010a (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x373010a)
# | #10 0x00007ff6379e4e48 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x2b34e48)
# | #11 0x00007ff6385e1ce6 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x3731ce6)
# | #12 0x00007ff6379c383a (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x2b1383a)
# | #13 0x00007ff6385e1b8e (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x3731b8e)
# | #14 0x00007ff6379ba874 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x2b0a874)
# | #15 0x00007ff6379c700c (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x2b1700c)
# | #16 0x00007ff6379e4e87 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x2b34e87)
# | #17 0x00007ff6379d09b3 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x2b209b3)
# | #18 0x00007ff6379d4670 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x2b24670)
# | #19 0x00007ff6379d3bc2 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x2b23bc2)
# | #20 0x00007ff635f69b71 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x10b9b71)
# | #21 0x00007ff635cef4ad (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0xe3f4ad)
# | #22 0x00007ff6351de2fc (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x32e2fc)
# | #23 0x00007ff634eb6e4f (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x6e4f)
# | #24 0x00007ff634eb1025 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x1025)
# | #25 0x00007ff6396faa64 (c:\_work\llvm-project\llvm-project\build\bin\opt.exe+0x484aa64)
# | #26 0x00007fff234b4cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0)
# | #27 0x00007fff2e43edcb (C:\Windows\SYSTEM32\ntdll.dll+0x7edcb)
# `-----------------------------
# error: command failed with exit status: 0xc000001d
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe' --allow-unused-prefixes 'C:\_work\llvm-project\llvm-project\llvm\test\Transforms\Attributor\nofpclass.ll' --check-prefixes=CHECK,CHECK-CV,TUNIT,TUNIT-CV
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe --allow-unused-prefixes C:\_work\llvm-project\llvm-project\llvm\test\Transforms\Attributor\nofpclass.ll --check-prefixes=CHECK,CHECK-CV,TUNIT,TUNIT-CV
# `-----------------------------
# 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/175852