[llvm] [NFC][AMDGPU] Remove the empty FPM as well as the adaptor to MPM (PR #114558)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-backend-amdgpu

Author: Shilei Tian (shiltian)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/114558.diff


1 Files Affected:

- (modified) llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp (-2) 


``````````diff
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
index d93ec34a703d3d..ad03017aae1c17 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetMachine.cpp
@@ -740,8 +740,6 @@ void AMDGPUTargetMachine::registerPassBuilderCallbacks(PassBuilder &PB) {
 
   PB.registerPipelineStartEPCallback(
       [](ModulePassManager &PM, OptimizationLevel Level) {
-        FunctionPassManager FPM;
-        PM.addPass(createModuleToFunctionPassAdaptor(std::move(FPM)));
         if (EnableHipStdPar)
           PM.addPass(HipStdParAcceleratorCodeSelectionPass());
       });

``````````

</details>


https://github.com/llvm/llvm-project/pull/114558