[AMDGPU] gfx908 mfma support

Differential Revision: https://reviews.llvm.org/D64584

llvm-svn: 365824
diff --git a/llvm/lib/Target/AMDGPU/SIOptimizeExecMasking.cpp b/llvm/lib/Target/AMDGPU/SIOptimizeExecMasking.cpp
index a23216a..3227bff 100644
--- a/llvm/lib/Target/AMDGPU/SIOptimizeExecMasking.cpp
+++ b/llvm/lib/Target/AMDGPU/SIOptimizeExecMasking.cpp
@@ -253,8 +253,8 @@
 }
 
 // XXX - Seems LivePhysRegs doesn't work correctly since it will incorrectly
-// repor tthe register as unavailable because a super-register with a lane mask
-// as unavailable.
+// report the register as unavailable because a super-register with a lane mask
+// is unavailable.
 static bool isLiveOut(const MachineBasicBlock &MBB, unsigned Reg) {
   for (MachineBasicBlock *Succ : MBB.successors()) {
     if (Succ->isLiveIn(Reg))