[llvm] [InstCombine] Generalise optimisation of redundant floating point comparisons with `ConstantFPRange` (PR #159315)

[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/22918

<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 'lit :: shtest-readfile-external.py' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
env LIT_USE_INTERNAL_SHELL=0 not env -u FILECHECK_OPTS "/usr/bin/python3.10" /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/llvm/utils/lit/lit.py -j1 --order=lexical -a -v Inputs/shtest-readfile | FileCheck -match-full-lines -DTEMP_PATH=/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/shtest-readfile-external.py
# executed command: env LIT_USE_INTERNAL_SHELL=0 not env -u FILECHECK_OPTS /usr/bin/python3.10 /home/tcwg-buildbot/worker/clang-aarch64-quick/llvm/llvm/utils/lit/lit.py -j1 --order=lexical -a -v Inputs/shtest-readfile
# executed command: FileCheck -match-full-lines -DTEMP_PATH=/home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/shtest-readfile-external.py
# .---command stderr------------
# | /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/shtest-readfile-external.py:10:10: error: CHECK: expected string not found in input
# | # CHECK: + echo hello
# |          ^
# | <stdin>:16:286: note: scanning from here
# | echo $(cat /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output/absolute-paths.txt.tmp) && test -e /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output/absolute-paths.txt.tmp # RUN: at line 3
# |                                                                                                                                                                                                                                                                                              ^
# | <stdin>:21:1: note: possible intended match here
# | + not echo return
# | ^
# | 
# | Input file: <stdin>
# | Check file: /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/shtest-readfile-external.py
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             .
# |             .
# |             .
# |            11: -- 
# |            12: Command Output (stderr): 
# |            13: -- 
# |            14: echo -n "hello" > /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output/absolute-paths.txt.tmp # RUN: at line 2 
# |            15: + echo -n hello 
# |            16: echo $(cat /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output/absolute-paths.txt.tmp) && test -e /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output/absolute-paths.txt.tmp # RUN: at line 3 
# | check:10'0                                                                                                                                                                                                                                                                                                  X error: no match found
# |            17: ++ cat /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output/absolute-paths.txt.tmp 
# | check:10'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            18: + echo 
# | check:10'0     ~~~~~~~
# |            19: + test -e /home/tcwg-buildbot/worker/clang-aarch64-quick/stage1/utils/lit/tests/Inputs/shtest-readfile/Output/absolute-paths.txt.tmp 
# | check:10'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            20: not echo return # RUN: at line 6 
# | check:10'0     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# |            21: + not echo return 
# | check:10'0     ~~~~~~~~~~~~~~~~~~
# | check:10'1     ?                  possible intended match
# |            22:  
# | check:10'0     ~
...

```

</details>

https://github.com/llvm/llvm-project/pull/159315