[llvm] r310860 - [GISel]: Add some helper constructors to MIRBuilder

[Aditya Nandakumar via llvm-commits]

Author: aditya_nandakumar
Date: Mon Aug 14 10:25:11 2017
New Revision: 310860

URL: http://llvm.org/viewvc/llvm-project?rev=310860&view=rev
Log:
[GISel]: Add some helper constructors to MIRBuilder

https://reviews.llvm.org/D36636

Modified:
    llvm/trunk/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h

Modified: llvm/trunk/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h?rev=310860&r1=310859&r2=310860&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h (original)
+++ llvm/trunk/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h Mon Aug 14 10:25:11 2017
@@ -85,6 +85,14 @@ class MachineIRBuilder {
     addUsesFromArgs(MIB, std::forward<UseArgsTy>(Args)...);
   }
 public:
+  /// Some constructors for easy use.
+  MachineIRBuilder() = default;
+  MachineIRBuilder(MachineFunction &MF) { setMF(MF); }
+  MachineIRBuilder(MachineInstr &MI)
+      : MachineIRBuilder(*MI.getParent()->getParent()) {
+    setInstr(MI);
+  }
+
   /// Getter for the function we currently build.
   MachineFunction &getMF() {
     assert(MF && "MachineFunction is not set");