[PATCH] D149207: [llvm-exegesis] Create a proper LLVM IR Function for MachineFunctions

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks updated this revision to Diff 518389.
aeubanks added a comment.

address comment


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149207/new/

https://reviews.llvm.org/D149207

Files:
  llvm/tools/llvm-exegesis/lib/Assembler.cpp


Index: llvm/tools/llvm-exegesis/lib/Assembler.cpp
===================================================================
--- llvm/tools/llvm-exegesis/lib/Assembler.cpp
+++ llvm/tools/llvm-exegesis/lib/Assembler.cpp
@@ -21,6 +21,8 @@
 #include "llvm/CodeGen/TargetPassConfig.h"
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
 #include "llvm/ExecutionEngine/SectionMemoryManager.h"
+#include "llvm/IR/BasicBlock.h"
+#include "llvm/IR/Instructions.h"
 #include "llvm/IR/LegacyPassManager.h"
 #include "llvm/MC/MCInstrInfo.h"
 #include "llvm/Support/Alignment.h"
@@ -81,9 +83,8 @@
       FunctionType::get(ReturnType, {MemParamType}, false);
   Function *const F = Function::Create(
       FunctionType, GlobalValue::InternalLinkage, FunctionName, Module);
-  // Making sure we can create a MachineFunction out of this Function even if it
-  // contains no IR.
-  F->setIsMaterializable(true);
+  BasicBlock *BB = BasicBlock::Create(Module->getContext(), "", F);
+  new UnreachableInst(Module->getContext(), BB);
   return MMI->getOrCreateMachineFunction(*F);
 }
 


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