C++17 compatibility: make WITH_TIDY=1 happy again.

Bug: http://b/111067277
Test: builds
Change-Id: I8b69ea3815e14bb6eb27f40c0dd01a85b340a355

1 files changed, 2 insertions, 2 deletions

diff --git a/compiler/optimizing/nodes.cc b/compiler/optimizing/nodes.cc
index 3f225f354c..d1fba31792 100644
--- a/compiler/optimizing/nodes.cc
+++ b/compiler/optimizing/nodes.cc
@@ -1231,7 +1231,7 @@ bool HInstructionList::FoundBefore(const HInstruction* instruction1,
     }
   }
   LOG(FATAL) << "Did not find an order between two instructions of the same block.";
-  return true;
+  UNREACHABLE();
 }
 
 bool HInstruction::StrictlyDominates(HInstruction* other_instruction) const {
@@ -1254,7 +1254,7 @@ bool HInstruction::StrictlyDominates(HInstruction* other_instruction) const {
       } else {
         // There is no order among phis.
         LOG(FATAL) << "There is no dominance between phis of a same block.";
-        return false;
+        UNREACHABLE();
       }
     } else {
       // `this` is not a phi.