commit 68fbda9862215153789e87a61c93bd04299ad757
author GregF <greg@LunarG.com> Thu Nov 08 10:35:45 2018 -0700
committer GregF <greg@LunarG.com> Thu Nov 08 10:35:45 2018 -0700
tree 19b1d64995738396d83d0efe54823aee9fb8ba7f
parent 4207c97b938078818140edad101a032cf768191b

Add DeadBranchElim before MergeReturn in legalization.

MergeReturn now requires this or could throw an error.

SPIRV/SpvTools.cpp

diff --git a/SPIRV/SpvTools.cpp b/SPIRV/SpvTools.cpp
index bc9bf9e..05f234c 100755
--- a/SPIRV/SpvTools.cpp
+++ b/SPIRV/SpvTools.cpp
@@ -152,6 +152,7 @@
             out << std::endl;
         });
 
+    optimizer.RegisterPass(spvtools::CreateDeadBranchElimPass());
     optimizer.RegisterPass(spvtools::CreateMergeReturnPass());
     optimizer.RegisterPass(spvtools::CreateInlineExhaustivePass());
     optimizer.RegisterPass(spvtools::CreateEliminateDeadFunctionsPass());