[clang] [flang] [llvm] add -floop-fuse to clang and flang (PR #142686)

[Tarun Prabhu via llvm-commits]

================
@@ -151,6 +151,8 @@ void Flang::addCodegenOptions(const ArgList &Args,
       !stackArrays->getOption().matches(options::OPT_fno_stack_arrays))
     CmdArgs.push_back("-fstack-arrays");
 
+  Args.AddLastArg(CmdArgs, options::OPT_fexperimental_loop_fuse, options::OPT_fno_experimental_loop_fuse);
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tarunprabhu wrote:

Not nit: Probably need to run `clang-format` on this line.

NIT
```suggestion
  Args.AddLastArg(CmdArgs, options::OPT_fexperimental_loop_fusion, options::OPT_fno_experimental_loop_fusion);
```

https://github.com/llvm/llvm-project/pull/142686