[MIPS GlobalISel] Select indirect branch

Select G_BRINDIRECT for MIPS32.

Differential Revision: https://reviews.llvm.org/D67441

llvm-svn: 371730
diff --git a/llvm/lib/Target/Mips/MipsInstructionSelector.cpp b/llvm/lib/Target/Mips/MipsInstructionSelector.cpp
index c5af363..524a58b 100644
--- a/llvm/lib/Target/Mips/MipsInstructionSelector.cpp
+++ b/llvm/lib/Target/Mips/MipsInstructionSelector.cpp
@@ -338,6 +338,11 @@
     I.eraseFromParent();
     return true;
   }
+  case G_BRINDIRECT: {
+    MI = BuildMI(MBB, I, I.getDebugLoc(), TII.get(Mips::PseudoIndirectBranch))
+             .add(I.getOperand(0));
+    break;
+  }
   case G_PHI: {
     const Register DestReg = I.getOperand(0).getReg();
     const unsigned OpSize = MRI.getType(DestReg).getSizeInBits();