[llvm] [CodeGen] Use a range-based for loop (NFC) (PR #97177)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-cmake-x86_64-avx512-linux` running on `avx512-intel64` while building `llvm` at step 7 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/133/builds/824

Here is the relevant piece of the build log for the reference:
```
Step 7 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'LLVM :: Analysis/StructuralHash/structural-hash-printer.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/bin/opt -passes='print<structural-hash>' -disable-output /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll 2>&1 | /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/bin/FileCheck /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll
+ /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/bin/FileCheck /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll
+ /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/bin/opt '-passes=print<structural-hash>' -disable-output /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll
RUN: at line 2: /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/bin/opt -passes='print<structural-hash><detailed>' -disable-output /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll 2>&1 | /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/bin/FileCheck /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll -check-prefix=DETAILED-HASH
+ /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/bin/opt '-passes=print<structural-hash><detailed>' -disable-output /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll
+ /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/stage1/bin/FileCheck /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll -check-prefix=DETAILED-HASH
/localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll:22:23: error: DETAILED-HASH-NEXT: expected string not found in input
; DETAILED-HASH-NEXT: Function f1 Hash: [[DF1H:([a-z0-9]{14,})]]
                      ^
<stdin>:1:30: note: scanning from here
Module Hash: df71c94e5bbfbe64
                             ^
<stdin>:2:1: note: possible intended match here
Function f1 Hash: 2ea4cc5c1eb96
^

Input file: <stdin>
Check file: /localdisk2/buildbot/llvm-worker/clang-cmake-x86_64-avx512-linux/llvm/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll

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

Input was:
<<<<<<
           1: Module Hash: df71c94e5bbfbe64 
next:22'0                                  X error: no match found
           2: Function f1 Hash: 2ea4cc5c1eb96 
next:22'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
next:22'1     ?                                possible intended match
           3: Function f2 Hash: 41e21cfa15a7c82f 
next:22'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>>>

--

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


```

https://github.com/llvm/llvm-project/pull/97177