[llvm] [AMDGPU] Change expand-fp opt level argument syntax (PR #157408)

[LLVM Continuous Integration via llvm-commits]

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 `llvm` at step 4 "clean-build-dir".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/46/builds/23068

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

```
Step 4 (clean-build-dir) failure: Delete failed. (failure)
Step 7 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: Transforms/ExpandFp/pass-parameters.ll' FAILED ********************
Exit Code: 3221225477

Command Output (stdout):
--
# RUN: at line 1
z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe -mtriple=amdgcn -passes="expand-fp<O0>" Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\ExpandFp\pass-parameters.ll -S -o /dev/null
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe' -mtriple=amdgcn '-passes=expand-fp<O0>' 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\ExpandFp\pass-parameters.ll' -S -o /dev/null
# .---command stderr------------
# | z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe: warning: failed to infer data layout: unable to get target for 'amdgcn', see --version and --triple.
# | z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe: WARNING: failed to create target machine for 'amdgcn': unable to get target for 'amdgcn', see --version and --triple.
# | 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: z:\\b\\llvm-clang-x86_64-sie-win\\build\\bin\\opt.exe -mtriple=amdgcn -passes=expand-fp<O0> Z:\\b\\llvm-clang-x86_64-sie-win\\llvm-project\\llvm\\test\\Transforms\\ExpandFp\\pass-parameters.ll -S -o C:\\Users\\buildbot\\AppData\\Local\\Temp\\lit-tmp-1h91pbza\\tmp36hwkere
# | 1.	Running pass "function(expand-fp<O0>)" on module "Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\Transforms\ExpandFp\pass-parameters.ll"
# | 2.	Running pass "expand-fp<O0>" on function "empty"
# | Exception Code: 0xC0000005
# |  #0 0x00007ff75304e036 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0x87e036)
# |  #1 0x00007ff752921f62 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0x151f62)
# |  #2 0x00007ff753593273 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0xdc3273)
# |  #3 0x00007ff752921ec2 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0x151ec2)
# |  #4 0x00007ff753593a02 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0xdc3a02)
# |  #5 0x00007ff7528932f2 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0xc32f2)
# |  #6 0x00007ff7535935f3 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0xdc35f3)
# |  #7 0x00007ff752894dc9 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0xc4dc9)
# |  #8 0x00007ff75288b10a (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0xbb10a)
# |  #9 0x00007ff752880737 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0xb0737)
# | #10 0x00007ff752895214 (z:\b\llvm-clang-x86_64-sie-win\build\bin\opt.exe+0xc5214)
# | #11 0x00007ff8b6ad7ac4 (C:\Windows\System32\KERNEL32.DLL+0x17ac4)
# | #12 0x00007ff8b6ffa8c1 (C:\Windows\SYSTEM32\ntdll.dll+0x5a8c1)
# `-----------------------------
# error: command failed with exit status: 0xc0000005

--

********************


```

</details>

https://github.com/llvm/llvm-project/pull/157408