[clang] [llvm] wip: Move instrumentation passes (PR #92171)

[Arthur Eubanks via cfe-commits]

================
@@ -1028,6 +1029,14 @@ 
PassBuilder::buildModuleSimplificationPipeline(OptimizationLevel Level,
       Phase != ThinOrFullLTOPhase::ThinLTOPostLink)
     MPM.addPass(SampleProfileProbePass(TM));
 
+  // Instrument function entry and exit before all inlining.
+  if (Phase != ThinOrFullLTOPhase::ThinLTOPostLink &&
+      Phase != ThinOrFullLTOPhase::FullLTOPostLink &&
+      Phase != ThinOrFullLTOPhase::None) {
----------------
aeubanks wrote:

we need this pass when `Phase == ThinOrFullLTOPhase::None` right?

I'd extract out `isLTOPostLink` to mirror the existing `isLTOPreLink`

https://github.com/llvm/llvm-project/pull/92171
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