diff --git a/Test/GL_ARB_draw_instanced.vert b/Test/GL_ARB_draw_instanced.vert
new file mode 100644
index 0000000..6e39086
--- /dev/null
+++ b/Test/GL_ARB_draw_instanced.vert
@@ -0,0 +1,18 @@
+#version 150
+#extension GL_ARB_draw_instanced : require
+#define ID gl_InstanceID
+
+uniform mat4 gtf_ModelViewProjectionMatrix;
+uniform vec3 instanceOffsets[3];
+in vec4 va[gl_MaxVertexAttribs];
+out vec4 color;
+
+void main (void)
+{
+        vec4 vertex = vec4(va[0].xy / 3.0, va[0].zw) + vec4(instanceOffsets[ID], 1.0);
+        color = vec4(0, 0, 0, 0);
+        for (int i = 1; i < gl_MaxVertexAttribs; i++)
+                color += va[i];
+        gl_Position = gtf_ModelViewProjectionMatrix * vertex;
+        gl_PointSize = 1.0;
+}
diff --git a/Test/baseResults/GL_ARB_draw_instanced.vert.out b/Test/baseResults/GL_ARB_draw_instanced.vert.out
new file mode 100644
index 0000000..e601bc8
--- /dev/null
+++ b/Test/baseResults/GL_ARB_draw_instanced.vert.out
@@ -0,0 +1,189 @@
+GL_ARB_draw_instanced.vert
+Shader version: 150
+Requested GL_ARB_draw_instanced
+0:? Sequence
+0:10  Function Definition: main( ( global void)
+0:10    Function Parameters: 
+0:12    Sequence
+0:12      Sequence
+0:12        move second child to first child ( temp 4-component vector of float)
+0:12          'vertex' ( temp 4-component vector of float)
+0:12          add ( temp 4-component vector of float)
+0:12            Construct vec4 ( temp 4-component vector of float)
+0:12              divide ( temp 2-component vector of float)
+0:12                vector swizzle ( temp 2-component vector of float)
+0:12                  direct index ( temp 4-component vector of float)
+0:12                    'va' ( in 64-element array of 4-component vector of float)
+0:12                    Constant:
+0:12                      0 (const int)
+0:12                  Sequence
+0:12                    Constant:
+0:12                      0 (const int)
+0:12                    Constant:
+0:12                      1 (const int)
+0:12                Constant:
+0:12                  3.000000
+0:12              vector swizzle ( temp 2-component vector of float)
+0:12                direct index ( temp 4-component vector of float)
+0:12                  'va' ( in 64-element array of 4-component vector of float)
+0:12                  Constant:
+0:12                    0 (const int)
+0:12                Sequence
+0:12                  Constant:
+0:12                    2 (const int)
+0:12                  Constant:
+0:12                    3 (const int)
+0:12            Construct vec4 ( temp 4-component vector of float)
+0:12              indirect index ( temp 3-component vector of float)
+0:12                'instanceOffsets' ( uniform 3-element array of 3-component vector of float)
+0:12                'gl_InstanceID' ( gl_InstanceId int InstanceId)
+0:12              Constant:
+0:12                1.000000
+0:13      move second child to first child ( temp 4-component vector of float)
+0:13        'color' ( smooth out 4-component vector of float)
+0:13        Constant:
+0:13          0.000000
+0:13          0.000000
+0:13          0.000000
+0:13          0.000000
+0:14      Sequence
+0:14        Sequence
+0:14          move second child to first child ( temp int)
+0:14            'i' ( temp int)
+0:14            Constant:
+0:14              1 (const int)
+0:14        Loop with condition tested first
+0:14          Loop Condition
+0:14          Compare Less Than ( temp bool)
+0:14            'i' ( temp int)
+0:14            Constant:
+0:14              64 (const int)
+0:14          Loop Body
+0:15          add second child into first child ( temp 4-component vector of float)
+0:15            'color' ( smooth out 4-component vector of float)
+0:15            indirect index ( temp 4-component vector of float)
+0:15              'va' ( in 64-element array of 4-component vector of float)
+0:15              'i' ( temp int)
+0:14          Loop Terminal Expression
+0:14          Post-Increment ( temp int)
+0:14            'i' ( temp int)
+0:16      move second child to first child ( temp 4-component vector of float)
+0:16        gl_Position: direct index for structure ( gl_Position 4-component vector of float Position)
+0:16          'anon@0' ( out block{ gl_Position 4-component vector of float Position gl_Position,  gl_PointSize float PointSize gl_PointSize,  out unsized 1-element array of float ClipDistance gl_ClipDistance})
+0:16          Constant:
+0:16            0 (const uint)
+0:16        matrix-times-vector ( temp 4-component vector of float)
+0:16          'gtf_ModelViewProjectionMatrix' ( uniform 4X4 matrix of float)
+0:16          'vertex' ( temp 4-component vector of float)
+0:17      move second child to first child ( temp float)
+0:17        gl_PointSize: direct index for structure ( gl_PointSize float PointSize)
+0:17          'anon@0' ( out block{ gl_Position 4-component vector of float Position gl_Position,  gl_PointSize float PointSize gl_PointSize,  out unsized 1-element array of float ClipDistance gl_ClipDistance})
+0:17          Constant:
+0:17            1 (const uint)
+0:17        Constant:
+0:17          1.000000
+0:?   Linker Objects
+0:?     'gtf_ModelViewProjectionMatrix' ( uniform 4X4 matrix of float)
+0:?     'instanceOffsets' ( uniform 3-element array of 3-component vector of float)
+0:?     'va' ( in 64-element array of 4-component vector of float)
+0:?     'color' ( smooth out 4-component vector of float)
+0:?     'anon@0' ( out block{ gl_Position 4-component vector of float Position gl_Position,  gl_PointSize float PointSize gl_PointSize,  out unsized 1-element array of float ClipDistance gl_ClipDistance})
+0:?     'gl_VertexID' ( gl_VertexId int VertexId)
+0:?     'gl_InstanceID' ( gl_InstanceId int InstanceId)
+
+
+Linked vertex stage:
+
+
+Shader version: 150
+Requested GL_ARB_draw_instanced
+0:? Sequence
+0:10  Function Definition: main( ( global void)
+0:10    Function Parameters: 
+0:12    Sequence
+0:12      Sequence
+0:12        move second child to first child ( temp 4-component vector of float)
+0:12          'vertex' ( temp 4-component vector of float)
+0:12          add ( temp 4-component vector of float)
+0:12            Construct vec4 ( temp 4-component vector of float)
+0:12              divide ( temp 2-component vector of float)
+0:12                vector swizzle ( temp 2-component vector of float)
+0:12                  direct index ( temp 4-component vector of float)
+0:12                    'va' ( in 64-element array of 4-component vector of float)
+0:12                    Constant:
+0:12                      0 (const int)
+0:12                  Sequence
+0:12                    Constant:
+0:12                      0 (const int)
+0:12                    Constant:
+0:12                      1 (const int)
+0:12                Constant:
+0:12                  3.000000
+0:12              vector swizzle ( temp 2-component vector of float)
+0:12                direct index ( temp 4-component vector of float)
+0:12                  'va' ( in 64-element array of 4-component vector of float)
+0:12                  Constant:
+0:12                    0 (const int)
+0:12                Sequence
+0:12                  Constant:
+0:12                    2 (const int)
+0:12                  Constant:
+0:12                    3 (const int)
+0:12            Construct vec4 ( temp 4-component vector of float)
+0:12              indirect index ( temp 3-component vector of float)
+0:12                'instanceOffsets' ( uniform 3-element array of 3-component vector of float)
+0:12                'gl_InstanceID' ( gl_InstanceId int InstanceId)
+0:12              Constant:
+0:12                1.000000
+0:13      move second child to first child ( temp 4-component vector of float)
+0:13        'color' ( smooth out 4-component vector of float)
+0:13        Constant:
+0:13          0.000000
+0:13          0.000000
+0:13          0.000000
+0:13          0.000000
+0:14      Sequence
+0:14        Sequence
+0:14          move second child to first child ( temp int)
+0:14            'i' ( temp int)
+0:14            Constant:
+0:14              1 (const int)
+0:14        Loop with condition tested first
+0:14          Loop Condition
+0:14          Compare Less Than ( temp bool)
+0:14            'i' ( temp int)
+0:14            Constant:
+0:14              64 (const int)
+0:14          Loop Body
+0:15          add second child into first child ( temp 4-component vector of float)
+0:15            'color' ( smooth out 4-component vector of float)
+0:15            indirect index ( temp 4-component vector of float)
+0:15              'va' ( in 64-element array of 4-component vector of float)
+0:15              'i' ( temp int)
+0:14          Loop Terminal Expression
+0:14          Post-Increment ( temp int)
+0:14            'i' ( temp int)
+0:16      move second child to first child ( temp 4-component vector of float)
+0:16        gl_Position: direct index for structure ( gl_Position 4-component vector of float Position)
+0:16          'anon@0' ( out block{ gl_Position 4-component vector of float Position gl_Position,  gl_PointSize float PointSize gl_PointSize,  out 1-element array of float ClipDistance gl_ClipDistance})
+0:16          Constant:
+0:16            0 (const uint)
+0:16        matrix-times-vector ( temp 4-component vector of float)
+0:16          'gtf_ModelViewProjectionMatrix' ( uniform 4X4 matrix of float)
+0:16          'vertex' ( temp 4-component vector of float)
+0:17      move second child to first child ( temp float)
+0:17        gl_PointSize: direct index for structure ( gl_PointSize float PointSize)
+0:17          'anon@0' ( out block{ gl_Position 4-component vector of float Position gl_Position,  gl_PointSize float PointSize gl_PointSize,  out 1-element array of float ClipDistance gl_ClipDistance})
+0:17          Constant:
+0:17            1 (const uint)
+0:17        Constant:
+0:17          1.000000
+0:?   Linker Objects
+0:?     'gtf_ModelViewProjectionMatrix' ( uniform 4X4 matrix of float)
+0:?     'instanceOffsets' ( uniform 3-element array of 3-component vector of float)
+0:?     'va' ( in 64-element array of 4-component vector of float)
+0:?     'color' ( smooth out 4-component vector of float)
+0:?     'anon@0' ( out block{ gl_Position 4-component vector of float Position gl_Position,  gl_PointSize float PointSize gl_PointSize,  out 1-element array of float ClipDistance gl_ClipDistance})
+0:?     'gl_VertexID' ( gl_VertexId int VertexId)
+0:?     'gl_InstanceID' ( gl_InstanceId int InstanceId)
+
diff --git a/glslang/MachineIndependent/Versions.cpp b/glslang/MachineIndependent/Versions.cpp
index 70a5d5e..2fc0d9e 100644
--- a/glslang/MachineIndependent/Versions.cpp
+++ b/glslang/MachineIndependent/Versions.cpp
@@ -225,6 +225,7 @@
     extensionBehavior[E_GL_ARB_shading_language_packing]     = EBhDisable;
     extensionBehavior[E_GL_ARB_texture_query_lod]            = EBhDisable;
     extensionBehavior[E_GL_ARB_vertex_attrib_64bit]          = EBhDisable;
+    extensionBehavior[E_GL_ARB_draw_instanced]               = EBhDisable;
 
     extensionBehavior[E_GL_KHR_shader_subgroup_basic]            = EBhDisable;
     extensionBehavior[E_GL_KHR_shader_subgroup_vote]             = EBhDisable;
@@ -465,6 +466,7 @@
             "#define GL_ARB_shader_storage_buffer_object 1\n"
             "#define GL_ARB_texture_query_lod 1\n"
             "#define GL_ARB_vertex_attrib_64bit 1\n"
+            "#define GL_ARB_draw_instanced 1\n"
             "#define GL_EXT_shader_non_constant_global_initializers 1\n"
             "#define GL_EXT_shader_image_load_formatted 1\n"
             "#define GL_EXT_post_depth_coverage 1\n"
diff --git a/glslang/MachineIndependent/Versions.h b/glslang/MachineIndependent/Versions.h
index 949a7a1..2dbac0b 100644
--- a/glslang/MachineIndependent/Versions.h
+++ b/glslang/MachineIndependent/Versions.h
@@ -161,6 +161,7 @@
 const char* const E_GL_ARB_shading_language_packing     = "GL_ARB_shading_language_packing";
 const char* const E_GL_ARB_texture_query_lod            = "GL_ARB_texture_query_lod";
 const char* const E_GL_ARB_vertex_attrib_64bit          = "GL_ARB_vertex_attrib_64bit";
+const char* const E_GL_ARB_draw_instanced               = "GL_ARB_draw_instanced";
 
 const char* const E_GL_KHR_shader_subgroup_basic            = "GL_KHR_shader_subgroup_basic";
 const char* const E_GL_KHR_shader_subgroup_vote             = "GL_KHR_shader_subgroup_vote";
diff --git a/gtests/AST.FromFile.cpp b/gtests/AST.FromFile.cpp
index 0db9754..f9680dd 100644
--- a/gtests/AST.FromFile.cpp
+++ b/gtests/AST.FromFile.cpp
@@ -285,7 +285,8 @@
         "atomicAdd.comp",
         "GL_ARB_gpu_shader5.u2i.vert",
         "atomicCounterARBOps.vert",
-        "GL_EXT_shader_integer_mix.vert"
+        "GL_EXT_shader_integer_mix.vert",
+        "GL_ARB_draw_instanced.vert",
     })),
     FileNameAsCustomTestSuffix
 );