diff --git a/Test/baseResults/spv.specConstant.vert.out b/Test/baseResults/spv.specConstant.vert.out
index dadab07c..fb7c70a7 100644
--- a/Test/baseResults/spv.specConstant.vert.out
+++ b/Test/baseResults/spv.specConstant.vert.out
@@ -16,7 +16,7 @@ Linked vertex stage:
                               EntryPoint Vertex 4  "main" 20 22 28 53
                               Source GLSL 400
                               Name 4  "main"
-                              Name 14  "foo(vf4[s1498];"
+                              Name 14  "foo(vf4[s1516];"
                               Name 13  "p"
                               Name 17  "builtin_spec_constant("
                               Name 20  "color"
@@ -96,10 +96,10 @@ Linked vertex stage:
                               Store 20(color) 46
               48:          10 Load 22(ucol)
                               Store 47(param) 48
-              49:           2 FunctionCall 14(foo(vf4[s1498];) 47(param)
+              49:           2 FunctionCall 14(foo(vf4[s1516];) 47(param)
                               Return
                               FunctionEnd
-14(foo(vf4[s1498];):           2 Function None 12
+14(foo(vf4[s1516];):           2 Function None 12
            13(p):     11(ptr) FunctionParameter
               15:             Label
               54:     24(ptr) AccessChain 53(dupUcol) 23
diff --git a/glslang/MachineIndependent/Initialize.cpp b/glslang/MachineIndependent/Initialize.cpp
index 20f7c633..0edb354c 100644
--- a/glslang/MachineIndependent/Initialize.cpp
+++ b/glslang/MachineIndependent/Initialize.cpp
@@ -629,6 +629,30 @@ void TBuiltIns::initialize(int version, EProfile profile, int spv, int vulkan)
             "dmat3 inverse(dmat3);"
             "dmat4 inverse(dmat4);"
 
+            "bvec2 lessThan(dvec2, dvec2);"
+            "bvec3 lessThan(dvec3, dvec3);"
+            "bvec4 lessThan(dvec4, dvec4);"
+
+            "bvec2 lessThanEqual(dvec2, dvec2);"
+            "bvec3 lessThanEqual(dvec3, dvec3);"
+            "bvec4 lessThanEqual(dvec4, dvec4);"
+
+            "bvec2 greaterThan(dvec2, dvec2);"
+            "bvec3 greaterThan(dvec3, dvec3);"
+            "bvec4 greaterThan(dvec4, dvec4);"
+
+            "bvec2 greaterThanEqual(dvec2, dvec2);"
+            "bvec3 greaterThanEqual(dvec3, dvec3);"
+            "bvec4 greaterThanEqual(dvec4, dvec4);"
+
+            "bvec2 equal(dvec2, dvec2);"
+            "bvec3 equal(dvec3, dvec3);"
+            "bvec4 equal(dvec4, dvec4);"
+
+            "bvec2 notEqual(dvec2, dvec2);"
+            "bvec3 notEqual(dvec3, dvec3);"
+            "bvec4 notEqual(dvec4, dvec4);"
+
             "\n");
     }