[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 `llvm-nvptx-nvidia-ubuntu` running on `as-builder-7` while building `llvm` at step 6 "test-build-unified-tree-check-llvm".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/180/builds/888

Here is the relevant piece of the build log for the reference:
```
Step 6 (test-build-unified-tree-check-llvm) failure: test (failure)
******************** TEST 'LLVM :: Analysis/StructuralHash/structural-hash-printer.ll' FAILED ********************
Exit Code: 1

Command Output (stderr):
--
RUN: at line 1: /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/bin/opt -passes='print<structural-hash>' -disable-output /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll 2>&1 | /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/bin/FileCheck /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll
+ /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/bin/opt '-passes=print<structural-hash>' -disable-output /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll
+ /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/bin/FileCheck /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll
RUN: at line 2: /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/bin/opt -passes='print<structural-hash><detailed>' -disable-output /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll 2>&1 | /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/bin/FileCheck /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll -check-prefix=DETAILED-HASH
+ /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/bin/opt '-passes=print<structural-hash><detailed>' -disable-output /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll
+ /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/build/bin/FileCheck /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll -check-prefix=DETAILED-HASH
/home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/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: 3e0a0d539187de7c
                             ^
<stdin>:2:1: note: possible intended match here
Function f1 Hash: bae22b7d1db62
^

Input file: <stdin>
Check file: /home/buildbot/worker/as-builder-7/ramdisk/llvm-nvptx-nvidia-ubuntu/llvm-project/llvm/test/Analysis/StructuralHash/structural-hash-printer.ll

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

Input was:
<<<<<<
           1: Module Hash: 3e0a0d539187de7c 
next:22'0                                  X error: no match found
           2: Function f1 Hash: bae22b7d1db62 
next:22'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
next:22'1     ?                                possible intended match
           3: Function f2 Hash: b19e0728ca64c0f7 
next:22'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>>>>

--

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


```

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