Fix and reapply IR PGO support for Flang (#142892)

This PR resubmits the changes from #136098, which was previously
reverted due to a build failure during the linking stage:

```
undefined reference to `llvm::DebugInfoCorrelate'  
undefined reference to `llvm::ProfileCorrelate'
```

The root cause was that `llvm/lib/Frontend/Driver/CodeGenOptions.cpp`
references symbols from the `Instrumentation` component, but the
`LINK_COMPONENTS` in the `llvm/lib/Frontend/CMakeLists.txt` for
`LLVMFrontendDriver` did not include it. As a result, linking failed in
configurations where these components were not transitively linked.

### Fix:

This updated patch explicitly adds `Instrumentation` to
`LINK_COMPONENTS` in the relevant `llvm/lib/Frontend/CMakeLists.txt`
file to ensure the required symbols are properly resolved.

---------

Co-authored-by: ict-ql <168183727+ict-ql@users.noreply.github.com>
Co-authored-by: Chyaka <52224511+liliumshade@users.noreply.github.com>
Co-authored-by: Tarun Prabhu <tarunprabhu@gmail.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 16e49aa..451792d 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -3608,7 +3608,7 @@ CodeGenModule::isFunctionBlockedByProfileList(llvm::Function *Fn,
   // If the profile list is empty, then instrument everything.
   if (ProfileList.isEmpty())
     return ProfileList::Allow;
-  CodeGenOptions::ProfileInstrKind Kind = getCodeGenOpts().getProfileInstr();
+  llvm::driver::ProfileInstrKind Kind = getCodeGenOpts().getProfileInstr();
   // First, check the function name.
   if (auto V = ProfileList.isFunctionExcluded(Fn->getName(), Kind))
     return *V;