From 3fb217de1f30c7fc2553d9f32979a887bea33a3a Mon Sep 17 00:00:00 2001
From: Ian Romanick <ian.d.romanick@intel.com>
Date: Tue, 28 Aug 2018 13:00:52 -0700
Subject: arb_fragment_shader_interlock: Simple compiler tests

Currently none of the negative tests produce the expected result on
Mesa.  There are other cases called out by the spec as things you cannot
do, but it's not clear what the expected result is in those cases
(compile- or link-time error, undefined rendering, GPU hang, house fire,
etc.).

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
---
 ...InvocationInterlock-endInvocationInterlock.frag | 15 ++++++++++++++
 .../compiler/beginInvocationInterlock-twice.frag   | 23 ++++++++++++++++++++++
 ...nInterlock-before-beginInvocationInterlock.frag | 22 +++++++++++++++++++++
 .../compiler/endInvocationInterlock-twice.frag     | 23 ++++++++++++++++++++++
 4 files changed, 83 insertions(+)
 create mode 100644 tests/spec/arb_fragment_shader_interlock/compiler/beginInvocationInterlock-endInvocationInterlock.frag
 create mode 100644 tests/spec/arb_fragment_shader_interlock/compiler/beginInvocationInterlock-twice.frag
 create mode 100644 tests/spec/arb_fragment_shader_interlock/compiler/endInvocationInterlock-before-beginInvocationInterlock.frag
 create mode 100644 tests/spec/arb_fragment_shader_interlock/compiler/endInvocationInterlock-twice.frag

diff --git a/tests/spec/arb_fragment_shader_interlock/compiler/beginInvocationInterlock-endInvocationInterlock.frag b/tests/spec/arb_fragment_shader_interlock/compiler/beginInvocationInterlock-endInvocationInterlock.frag
new file mode 100644
index 000000000..c2e948e25
--- /dev/null
+++ b/tests/spec/arb_fragment_shader_interlock/compiler/beginInvocationInterlock-endInvocationInterlock.frag
@@ -0,0 +1,15 @@
+// [config]
+// expect_result: pass
+// glsl_version: 4.20
+// require_extensions: GL_ARB_fragment_shader_interlock
+// check_link: true
+// [end config]
+
+#version 420
+#extension GL_ARB_fragment_shader_interlock: require
+
+void main()
+{
+	beginInvocationInterlockARB();
+	endInvocationInterlockARB();
+}
diff --git a/tests/spec/arb_fragment_shader_interlock/compiler/beginInvocationInterlock-twice.frag b/tests/spec/arb_fragment_shader_interlock/compiler/beginInvocationInterlock-twice.frag
new file mode 100644
index 000000000..52364ea12
--- /dev/null
+++ b/tests/spec/arb_fragment_shader_interlock/compiler/beginInvocationInterlock-twice.frag
@@ -0,0 +1,23 @@
+// [config]
+// expect_result: fail
+// glsl_version: 4.20
+// require_extensions: GL_ARB_fragment_shader_interlock
+// check_link: true
+// [end config]
+
+/* The GL_ARB_fragment_shader_interlock spec says:
+ *
+ *    A compile- or link-time error will be generated if main() calls either
+ *    function more than once, contains a call to one function without a
+ *    matching call to the other, or calls endInvocationInterlockARB() before
+ *    calling beginInvocationInterlockARB().
+ */
+#version 420
+#extension GL_ARB_fragment_shader_interlock: require
+
+void main()
+{
+	beginInvocationInterlockARB();
+	beginInvocationInterlockARB();
+	endInvocationInterlockARB();
+}
diff --git a/tests/spec/arb_fragment_shader_interlock/compiler/endInvocationInterlock-before-beginInvocationInterlock.frag b/tests/spec/arb_fragment_shader_interlock/compiler/endInvocationInterlock-before-beginInvocationInterlock.frag
new file mode 100644
index 000000000..9860050d0
--- /dev/null
+++ b/tests/spec/arb_fragment_shader_interlock/compiler/endInvocationInterlock-before-beginInvocationInterlock.frag
@@ -0,0 +1,22 @@
+// [config]
+// expect_result: fail
+// glsl_version: 4.20
+// require_extensions: GL_ARB_fragment_shader_interlock
+// check_link: true
+// [end config]
+
+/* The GL_ARB_fragment_shader_interlock spec says:
+ *
+ *    A compile- or link-time error will be generated if main() calls either
+ *    function more than once, contains a call to one function without a
+ *    matching call to the other, or calls endInvocationInterlockARB() before
+ *    calling beginInvocationInterlockARB().
+ */
+#version 420
+#extension GL_ARB_fragment_shader_interlock: require
+
+void main()
+{
+	endInvocationInterlockARB();
+	beginInvocationInterlockARB();
+}
diff --git a/tests/spec/arb_fragment_shader_interlock/compiler/endInvocationInterlock-twice.frag b/tests/spec/arb_fragment_shader_interlock/compiler/endInvocationInterlock-twice.frag
new file mode 100644
index 000000000..4ac44f38c
--- /dev/null
+++ b/tests/spec/arb_fragment_shader_interlock/compiler/endInvocationInterlock-twice.frag
@@ -0,0 +1,23 @@
+// [config]
+// expect_result: fail
+// glsl_version: 4.20
+// require_extensions: GL_ARB_fragment_shader_interlock
+// check_link: true
+// [end config]
+
+/* The GL_ARB_fragment_shader_interlock spec says:
+ *
+ *    A compile- or link-time error will be generated if main() calls either
+ *    function more than once, contains a call to one function without a
+ *    matching call to the other, or calls endInvocationInterlockARB() before
+ *    calling beginInvocationInterlockARB().
+ */
+#version 420
+#extension GL_ARB_fragment_shader_interlock: require
+
+void main()
+{
+	beginInvocationInterlockARB();
+	endInvocationInterlockARB();
+	endInvocationInterlockARB();
+}
-- 
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