[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 `clang-aarch64-quick` running on `linaro-clang-aarch64-quick` while building `llvm` at step 5 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/65/builds/22430

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

```
Step 5 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'LLVM :: Transforms/ExpandFp/pass-parameters.ll' FAILED ********************
Exit Code: 139

Command Output (stderr):
--
/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt -mtriple=amdgcn -passes="expand-fp<O0>" /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/llvm/test/Transforms/ExpandFp/pass-parameters.ll -S -o /dev/null # RUN: at line 1
+ /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt -mtriple=amdgcn '-passes=expand-fp<O0>' /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/llvm/test/Transforms/ExpandFp/pass-parameters.ll -S -o /dev/null
/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt: warning: failed to infer data layout: unable to get target for 'amdgcn', see --version and --triple.
/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt: 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: /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt -mtriple=amdgcn -passes=expand-fp<O0> /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/llvm/test/Transforms/ExpandFp/pass-parameters.ll -S -o /dev/null
1.	Running pass "function(expand-fp<O0>)" on module "/home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/llvm/test/Transforms/ExpandFp/pass-parameters.ll"
2.	Running pass "expand-fp<O0>" on function "empty"
 #0 0x0000be472f3b1250 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x2c61250)
 #1 0x0000be472f3aece4 llvm::sys::RunSignalHandlers() (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x2c5ece4)
 #2 0x0000be472f3b206c SignalHandler(int, siginfo_t*, void*) Signals.cpp:0:0
 #3 0x0000ff257f8448f8 (linux-vdso.so.1+0x8f8)
 #4 0x0000be472de599dc llvm::ExpandFpPass::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x17099dc)
 #5 0x0000be472f1f6200 llvm::PassManager<llvm::Function, llvm::AnalysisManager<llvm::Function>>::run(llvm::Function&, llvm::AnalysisManager<llvm::Function>&) (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x2aa6200)
 #6 0x0000be472f1f9aa4 llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x2aa9aa4)
 #7 0x0000be472f1f5460 llvm::PassManager<llvm::Module, llvm::AnalysisManager<llvm::Module>>::run(llvm::Module&, llvm::AnalysisManager<llvm::Module>&) (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x2aa5460)
 #8 0x0000be472cc84f98 llvm::runPassPipeline(llvm::StringRef, llvm::Module&, llvm::TargetMachine*, llvm::TargetLibraryInfoImpl*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::ToolOutputFile*, llvm::StringRef, llvm::ArrayRef<llvm::PassPlugin>, llvm::ArrayRef<std::function<void (llvm::PassBuilder&)>>, llvm::opt_tool::OutputKind, llvm::opt_tool::VerifierKind, bool, bool, bool, bool, bool, bool, bool, bool) (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x534f98)
 #9 0x0000be472cc78f78 optMain (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x528f78)
#10 0x0000ff257f3573fc __libc_start_call_main ./csu/../sysdeps/nptl/libc_start_call_main.h:74:3
#11 0x0000ff257f3574cc call_init ./csu/../csu/libc-start.c:128:20
#12 0x0000ff257f3574cc __libc_start_main ./csu/../csu/libc-start.c:379:5
#13 0x0000be472cc72ab0 _start (/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt+0x522ab0)
/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/test/Transforms/ExpandFp/Output/pass-parameters.ll.script: line 8: 3466132 Segmentation fault      (core dumped) /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/bin/opt -mtriple=amdgcn -passes="expand-fp<O0>" /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/llvm/test/Transforms/ExpandFp/pass-parameters.ll -S -o /dev/null

--

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


```

</details>

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