[llvm] [TLI] Add basic support for fdim libcall (PR #108702)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-sie-win` running on `sie-win-worker` while building `llvm` at step 7 "test-build-unified-tree-check-all".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/46/builds/5229

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

```
Step 7 (test-build-unified-tree-check-all) failure: test (failure)
******************** TEST 'LLVM :: tools/llvm-tli-checker/ps4-tli-check.yaml' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 4
z:\b\llvm-clang-x86_64-sie-win\build\bin\yaml2obj.exe Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\tools\llvm-tli-checker\ps4-tli-check.yaml -DTYPE=ET_REL -DLABEL=Symbols -DZDAPV=_ZdaPv -o=Z:\b\llvm-clang-x86_64-sie-win\build\test\tools\llvm-tli-checker\Output\ps4-tli-check.yaml.tmp1
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\yaml2obj.exe' 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\tools\llvm-tli-checker\ps4-tli-check.yaml' -DTYPE=ET_REL -DLABEL=Symbols -DZDAPV=_ZdaPv '-o=Z:\b\llvm-clang-x86_64-sie-win\build\test\tools\llvm-tli-checker\Output\ps4-tli-check.yaml.tmp1'
# RUN: at line 5
llvm-tli-checker --triple=x86_64-scei-ps4 Z:\b\llvm-clang-x86_64-sie-win\build\test\tools\llvm-tli-checker\Output\ps4-tli-check.yaml.tmp1 | z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\tools\llvm-tli-checker\ps4-tli-check.yaml
# executed command: llvm-tli-checker --triple=x86_64-scei-ps4 'Z:\b\llvm-clang-x86_64-sie-win\build\test\tools\llvm-tli-checker\Output\ps4-tli-check.yaml.tmp1'
# executed command: 'z:\b\llvm-clang-x86_64-sie-win\build\bin\filecheck.exe' 'Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\tools\llvm-tli-checker\ps4-tli-check.yaml'
# .---command stderr------------
# | Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\tools\llvm-tli-checker\ps4-tli-check.yaml:37:10: error: CHECK: expected string not found in input
# | # CHECK: == Total TLI yes SDK yes: 253
# |          ^
# | <stdin>:25:27: note: scanning from here
# | >> Total TLI no SDK yes: 0
# |                           ^
# | <stdin>:26:1: note: possible intended match here
# | == Total TLI yes SDK yes: 256
# | ^
# | 
# | Input file: <stdin>
# | Check file: Z:\b\llvm-clang-x86_64-sie-win\llvm-project\llvm\test\tools\llvm-tli-checker\ps4-tli-check.yaml
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             1: TLI knows 507 symbols, 274 available for 'x86_64-scei-ps4' 
# |             2:  
# |             3: Looking for symbols in 'Z:\b\llvm-clang-x86_64-sie-win\build\test\tools\llvm-tli-checker\Output\ps4-tli-check.yaml.tmp1' 
# |             4: Found 256 global function symbols in 'Z:\b\llvm-clang-x86_64-sie-win\build\test\tools\llvm-tli-checker\Output\ps4-tli-check.yaml.tmp1' 
# |             5: Found a grand total of 256 library symbols 
# |             6: << TLI yes SDK no : '_Znam12__hot_cold_t' aka operator new[](unsigned long, __hot_cold_t) 
# |             7: << TLI yes SDK no : '_ZnamRKSt9nothrow_t12__hot_cold_t' aka operator new[](unsigned long, std::nothrow_t const&, __hot_cold_t) 
# |             8: << TLI yes SDK no : '_ZnamSt11align_val_t12__hot_cold_t' aka operator new[](unsigned long, std::align_val_t, __hot_cold_t) 
# |             9: << TLI yes SDK no : '_ZnamSt11align_val_tRKSt9nothrow_t12__hot_cold_t' aka operator new[](unsigned long, std::align_val_t, std::nothrow_t const&, __hot_cold_t) 
# |            10: << TLI yes SDK no : '_Znwm12__hot_cold_t' aka operator new(unsigned long, __hot_cold_t) 
# |            11: << TLI yes SDK no : '_ZnwmRKSt9nothrow_t12__hot_cold_t' aka operator new(unsigned long, std::nothrow_t const&, __hot_cold_t) 
# |            12: << TLI yes SDK no : '_ZnwmSt11align_val_t12__hot_cold_t' aka operator new(unsigned long, std::align_val_t, __hot_cold_t) 
# |            13: << TLI yes SDK no : '_ZnwmSt11align_val_tRKSt9nothrow_t12__hot_cold_t' aka operator new(unsigned long, std::align_val_t, std::nothrow_t const&, __hot_cold_t) 
# |            14: << TLI yes SDK no : '__size_returning_new' 
# |            15: << TLI yes SDK no : '__size_returning_new_hot_cold' 
# |            16: << TLI yes SDK no : '__size_returning_new_aligned' 
# |            17: << TLI yes SDK no : '__size_returning_new_aligned_hot_cold' 
# |            18: << TLI yes SDK no : 'fmaximum_num' 
# |            19: << TLI yes SDK no : 'fmaximum_numf' 
# |            20: << TLI yes SDK no : 'fmaximum_numl' 
...

```

</details>

https://github.com/llvm/llvm-project/pull/108702