[llvm] [StructuralHash] Refactor (PR #112621)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-solaris11-sparcv9` running on `solaris11-sparcv9` while building `llvm` at step 5 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/13/builds/3149

<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/MergeFunc/call-and-invoke-with-ranges-attr.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/stage1/bin/opt -passes=mergefunc -S < /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/llvm/test/Transforms/MergeFunc/call-and-invoke-with-ranges-attr.ll | /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/stage1/bin/FileCheck /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/llvm/test/Transforms/MergeFunc/call-and-invoke-with-ranges-attr.ll
+ /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/stage1/bin/opt -passes=mergefunc -S
+ /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/stage1/bin/FileCheck /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/llvm/test/Transforms/MergeFunc/call-and-invoke-with-ranges-attr.ll
/opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/llvm/test/Transforms/MergeFunc/call-and-invoke-with-ranges-attr.ll:96:16: error: CHECK-LABEL: expected string not found in input
; CHECK-LABEL: @call_with_same_range
               ^
<stdin>:89:36: note: scanning from here
define i8 @invoke_with_same_range() personality ptr undef {
                                   ^
<stdin>:90:22: note: possible intended match here
 %1 = tail call i8 @invoke_with_range()
                     ^

Input file: <stdin>
Check file: /opt/llvm-buildbot/home/solaris11-sparcv9/clang-solaris11-sparcv9/llvm/llvm/test/Transforms/MergeFunc/call-and-invoke-with-ranges-attr.ll

-dump-input=help explains the following input dump.

Input was:
<<<<<<
            .
            .
            .
           84: define i8 @call_with_same_range() { 
           85:  %1 = tail call i8 @call_with_range() 
           86:  ret i8 %1 
           87: } 
           88:  
           89: define i8 @invoke_with_same_range() personality ptr undef { 
label:96'0                                        X~~~~~~~~~~~~~~~~~~~~~~~~ error: no match found
           90:  %1 = tail call i8 @invoke_with_range() 
label:96'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
label:96'1                          ?                   possible intended match
           91:  ret i8 %1 
label:96'0     ~~~~~~~~~~~
           92: } 
label:96'0     ~~
>>>>>>

--

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


```

</details>

https://github.com/llvm/llvm-project/pull/112621