[Mlir-commits] [mlir] [MLIR][Python] expose translate_module_to_llvmir (PR #163881)

[Maksim Levental]

makslevental wrote:

Note, I added `mlirTranslateModuleToLLVMIRToString` instead of doing something like 

```c++
  m.def(
      "translate_module_to_llvmir",
      [](MlirOperation module) {
        LLVMContextRef llvmCtx = LLVMContextCreate();
        LLVMModuleRef llvmModule = mlirTranslateModuleToLLVMIR(module, llvmCtx);
        char *llvmir = LLVMPrintModuleToString(llvmModule);
        LLVMDisposeModule(llvmModule);
        LLVMContextDispose(llvmCtx);
        return llvmir;
      },
```

because there seems to be absolutely no way to prevent symbol DCE in the transitive dep MLIRCAPITarget which is the target that actually links `LLVMCore`.

https://github.com/llvm/llvm-project/pull/163881