1 files changed, 23 insertions, 0 deletions
diff --git a/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/operators/postfixdecrement_vert.vert b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/operators/postfixdecrement_vert.vert
new file mode 100644
index 0000000000..02f39bed10
--- /dev/null
+++ b/dom/canvas/test/webgl-conf/checkout/conformance/ogles/GL/operators/postfixdecrement_vert.vert
@@ -0,0 +1,23 @@
+
+/*
+Copyright (c) 2019 The Khronos Group Inc.
+Use of this source code is governed by an MIT-style license that can be
+found in the LICENSE.txt file.
+*/
+
+
+attribute vec4 gtf_Vertex;
+uniform mat4 gtf_ModelViewProjectionMatrix;
+varying vec4 color;
+
+void main (void)
+{
+	int m=23;
+	int k = m--;
+	float gray;
+	if( (k==23) && (m==22) )
+	gray=1.0;
+	else gray=0.0;
+	color = vec4(gray, gray, gray, 1.0);
+	gl_Position = gtf_ModelViewProjectionMatrix * gtf_Vertex;
+}