From c643addacdfb2ca4956e1ca4dea7fc010a544e0b Mon Sep 17 00:00:00 2001
From: Hans-Kristian Arntzen <hans-kristian.arntzen@arm.com>
Date: Tue, 15 May 2018 14:24:44 +0200
Subject: [PATCH] Only reflect spec constant if it actually has a constant ID.

---
 spirv_cross.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/spirv_cross.cpp b/spirv_cross.cpp
index 633778a4..855fea14 100644
--- a/spirv_cross.cpp
+++ b/spirv_cross.cpp
@@ -3471,10 +3471,8 @@ vector<SpecializationConstant> Compiler::get_specialization_constants() const
 		if (id.get_type() == TypeConstant)
 		{
 			auto &c = id.get<SPIRConstant>();
-			if (c.specialization)
-			{
+			if (c.specialization && has_decoration(c.self, DecorationSpecId))
 				spec_consts.push_back({ c.self, get_decoration(c.self, DecorationSpecId) });
-			}
 		}
 	}
 	return spec_consts;