[llvm] [X86] [NewPM] Add New Pass Manager wiring for x86-avoid-trailing-call (PR #166723)

[Aiden Grossman via llvm-commits]

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@@ -104,7 +105,19 @@ FunctionPass *createX86LowerTileCopyPass();
 /// CALL instruction. The pass does the same for each funclet as well. This
 /// ensures that the open interval of function start and end PCs contains all
 /// return addresses for the benefit of the Windows x64 unwinder.
-FunctionPass *createX86AvoidTrailingCallPass();
+class X86AvoidTrailingCallPass
+    : public PassInfoMixin<X86AvoidTrailingCallPass> {
+private:
+  const X86TargetMachine *TM;
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boomanaiden154 wrote:

Premerge CI is failing because `TM` is unused. We should be able to remove it from here, the constructor, and drop the `this` argument to the constructor call for this pass in `X86PassRegistry.def`.

https://github.com/llvm/llvm-project/pull/166723