From 68fbda9862215153789e87a61c93bd04299ad757 Mon Sep 17 00:00:00 2001
From: GregF <greg@LunarG.com>
Date: Thu, 8 Nov 2018 10:35:45 -0700
Subject: [PATCH] Add DeadBranchElim before MergeReturn in legalization.

MergeReturn now requires this or could throw an error.
---
 SPIRV/SpvTools.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/SPIRV/SpvTools.cpp b/SPIRV/SpvTools.cpp
index bc9bf9e0..05f234cc 100755
--- a/SPIRV/SpvTools.cpp
+++ b/SPIRV/SpvTools.cpp
@@ -152,6 +152,7 @@ void SpirvToolsLegalize(const glslang::TIntermediate&, std::vector<unsigned int>
             out << std::endl;
         });
 
+    optimizer.RegisterPass(spvtools::CreateDeadBranchElimPass());
     optimizer.RegisterPass(spvtools::CreateMergeReturnPass());
     optimizer.RegisterPass(spvtools::CreateInlineExhaustivePass());
     optimizer.RegisterPass(spvtools::CreateEliminateDeadFunctionsPass());