From 3d849f67cbae5807f18fb2d46dfccd3aeae3c39b Mon Sep 17 00:00:00 2001
From: Matthias Braun <matze@braunis.de>
Date: Mon, 5 Nov 2018 23:49:13 +0000
Subject: MachineModuleInfo: Store more specific reference to
 LLVMTargetMachine; NFC

MachineModuleInfo can only be used in code using lib/CodeGen, hence we
can keep a more specific reference to LLVMTargetMachine rather than just
TargetMachine around.

llvm-svn: 346182
---
 llvm/tools/llvm-exegesis/lib/Assembler.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'llvm/tools/llvm-exegesis/lib/Assembler.cpp')

diff --git a/llvm/tools/llvm-exegesis/lib/Assembler.cpp b/llvm/tools/llvm-exegesis/lib/Assembler.cpp
index 771a6e9ad24..2e3712ce7dc 100644
--- a/llvm/tools/llvm-exegesis/lib/Assembler.cpp
+++ b/llvm/tools/llvm-exegesis/lib/Assembler.cpp
@@ -142,8 +142,10 @@ llvm::BitVector getFunctionReservedRegs(const llvm::TargetMachine &TM) {
       llvm::make_unique<llvm::LLVMContext>();
   std::unique_ptr<llvm::Module> Module =
       createModule(Context, TM.createDataLayout());
+  // TODO: This only works for targets implementing LLVMTargetMachine.
+  const LLVMTargetMachine &LLVMTM = static_cast<const LLVMTargetMachine&>(TM);
   std::unique_ptr<llvm::MachineModuleInfo> MMI =
-      llvm::make_unique<llvm::MachineModuleInfo>(&TM);
+      llvm::make_unique<llvm::MachineModuleInfo>(&LLVMTM);
   llvm::MachineFunction &MF =
       createVoidVoidPtrMachineFunction(FunctionID, Module.get(), MMI.get());
   // Saving reserved registers for client.
-- 
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