Fix crash when using GLSL global uniforms and varying inputs/ouputs together (#6651)

* Fix incorrect assert on mixed global uniform and varyings

* add test

* remove unnecessary include

* fix incorrect logic

* fix comment grammar

* address review comments and improve test

* minimize diff

* fix more issues for cuda build

* remove unnecessary line for diff

1 files changed, 30 insertions, 0 deletions

diff --git a/tests/glsl/global-uniform-with-varyings.slang b/tests/glsl/global-uniform-with-varyings.slang
new file mode 100644
index 000000000..678855dbf
--- /dev/null
+++ b/tests/glsl/global-uniform-with-varyings.slang
@@ -0,0 +1,30 @@
+//TEST:SIMPLE(filecheck=CHECK_SPIRV): -target spirv -entry main -stage vertex
+//TEST:SIMPLE(filecheck=CHECK_GLSL): -target glsl -entry main -stage vertex
+
+// CHECK_SPIRV: OpEntryPoint
+// CHECK_SPIRV: OpVariable {{.*}} Input {{.*}} Location 0
+// CHECK_SPIRV: OpVariable {{.*}} Uniform
+// CHECK_SPIRV: OpVariable {{.*}} Input {{.*}} Location 1
+// CHECK_SPIRV: OpVariable {{.*}} Output {{.*}} Location 0
+
+// CHECK_GLSL: layout(location = 0)
+// CHECK_GLSL-NEXT: in
+// CHECK_GLSL: layout(location = 1)
+// CHECK_GLSL-NEXT: in
+// CHECK_GLSL: layout(std140) uniform
+// CHECK_GLSL: layout(location = 0)
+// CHECK_GLSL-NEXT: out
+// CHECK_GLSL: void main
+
+#version 330 core
+layout(location=0) in float3 a_position;
+layout(location=1) in float4 a_color;
+
+out float4 v_color;
+
+uniform matrix<float,4,4> u_transform;
+
+void main() {
+    gl_Position = u_transform * vec4(a_position, 1.0);
+    v_color = a_color;
+}