[llvm] [Hexagon] Do not co-packetize scalar FP/mpy def with a consuming transfer of control (PR #227178)

[via llvm-commits]

github-actions[bot] wrote:

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

* 142875 tests passed
* 3384 tests skipped
* 1 test failed

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

### LLVM
<details>
<summary>LLVM.CodeGen/Hexagon/intrinsics-v67.ll</summary>

```
Exit Code: 2

Command Output (stdout):
--
# RUN: at line 1
c:\_work\llvm-project\llvm-project\build\bin\llc.exe -mtriple=hexagon < C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\Hexagon\intrinsics-v67.ll | c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\Hexagon\intrinsics-v67.ll
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\llc.exe' -mtriple=hexagon
# .---command stderr------------
# | LLVM ERROR: Attempting to emit M7_dcmpyrwc instruction but the Feature_UseAudio predicate(s) are not met
# | 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\\llc.exe -mtriple=hexagon
# | 1.	Running pass 'Function Pass Manager' on module '<stdin>'.
# | 2.	Running pass 'Hexagon Assembly Printer' on function '@t7'
# | Exception Code: 0xC000001D
# |  #0 0x00007ff7e4c18546 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x18546)
# |  #1 0x00007ffe7e82bb04 (C:\Windows\System32\ucrtbase.dll+0x7bb04)
# |  #2 0x00007ffe7e82cad1 (C:\Windows\System32\ucrtbase.dll+0x7cad1)
# |  #3 0x00007ff7e4c1d28a (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x1d28a)
# |  #4 0x00007ff7e4c1d065 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x1d065)
# |  #5 0x00007ff7e514afd0 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x54afd0)
# |  #6 0x00007ff7e51bb46f (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x5bb46f)
# |  #7 0x00007ff7e71c6fa2 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x25c6fa2)
# |  #8 0x00007ff7e51bdc64 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x5bdc64)
# |  #9 0x00007ff7e5b6e513 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0xf6e513)
# | #10 0x00007ff7e4f35b45 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x335b45)
# | #11 0x00007ff7e4f3e59d (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x33e59d)
# | #12 0x00007ff7e4f36c20 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x336c20)
# | #13 0x00007ff7e4c05e94 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x5e94)
# | #14 0x00007ff7e4c01051 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x1051)
# | #15 0x00007ff7e9844400 (c:\_work\llvm-project\llvm-project\build\bin\llc.exe+0x4c44400)
# | #16 0x00007ffe89994cb0 (C:\Windows\System32\KERNEL32.DLL+0x14cb0)
# | #17 0x00007ffe967fedeb (C:\Windows\SYSTEM32\ntdll.dll+0x7edeb)
# `-----------------------------
# error: command failed with exit status: 0xc000001d
# executed command: 'c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe' 'C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\Hexagon\intrinsics-v67.ll'
# .---command stderr------------
# | FileCheck error: '<stdin>' is empty.
# | FileCheck command line:  c:\_work\llvm-project\llvm-project\build\bin\filecheck.exe C:\_work\llvm-project\llvm-project\llvm\test\CodeGen\Hexagon\intrinsics-v67.ll
# `-----------------------------
# 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/227178