Add a TargetMachine hook that verifies DataLayout compatibility

[oota-llvm.git] / lib / CodeGen / MachineFunction.cpp

diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 0a8309eb2f2d6781e17ba08a97ee5ef6266f47cd..bd6f8771e7b46afbb578f1d944450bafe4ebd8f1 100644 (file)
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -85,6 +85,10 @@ MachineFunction::MachineFunction(const Function *F, const TargetMachine &TM,
 
   FunctionNumber = FunctionNum;
   JumpTableInfo = nullptr;
+
+  assert(TM.isCompatibleDataLayout(getDataLayout()) &&
+         "Can't create a MachineFunction using a Module with a "
+         "Target-incompatible DataLayout attached\n");
 }
 
 MachineFunction::~MachineFunction() {