Victor Chiletto : tests/hlsl: Test loop unrolling edge cases.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 76ae871f5bdddddea98a006ba58111f270d9b259
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/76ae871f5bdddddea98a006ba58111...

Author: Victor Chiletto <vchiletto(a)codeweavers.com>
Date:   Fri May 17 18:35:50 2024 -0300

tests/hlsl: Test loop unrolling edge cases.

---

 Makefile.am                   |  1 +
 tests/hlsl/unroll.shader_test | 65 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index 1d418845..2b655fa4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -241,6 +241,7 @@ vkd3d_shader_tests = \
 	tests/hlsl/unsigned.shader_test \
 	tests/hlsl/uniform-parameters.shader_test \
 	tests/hlsl/uniform-semantics.shader_test \
+	tests/hlsl/unroll.shader_test \
 	tests/hlsl/vector-indexing-uniform.shader_test \
 	tests/hlsl/vector-indexing.shader_test \
 	tests/hlsl/vertex-shader-ops.shader_test \
diff --git a/tests/hlsl/unroll.shader_test b/tests/hlsl/unroll.shader_test
new file mode 100644
index 00000000..36bee0f8
--- /dev/null
+++ b/tests/hlsl/unroll.shader_test
@@ -0,0 +1,65 @@
+% Unrolling edge cases.
+
+[pixel shader todo(sm<4)]
+float a : register(c0);
+
+float4 main() : sv_target
+{
+    int i;
+    if (a > 0)
+    {
+        [unroll]
+        for (i = 0; i < 10; ++i);
+
+        return float4(i, a, 2.0, 3.0);
+    }
+
+    return float4(0.0, a, 3.0, 4.0);
+}
+
+[test]
+uniform 0 float 1
+todo(glsl|sm<4) draw quad
+probe (0,0) rgba(10.0, 1.0, 2.0, 3.0)
+
+[pixel shader]
+float4 main() : sv_target
+{
+    int i;
+    [unroll(4)]
+    for (i = 0; i < 8; ++i);
+
+    return float4(i, 0, 0, 0);
+}
+
+[test]
+todo(glsl) draw quad
+probe (0,0) rgba(4.0, 0.0, 0.0, 0.0)
+
+[pixel shader fail(sm<6)]
+float4 main() : sv_target
+{
+    int i;
+    [unroll]
+    for (i = 0; i < 1024; ++i);
+
+    return float4(i, 0, 0, 0);
+}
+
+[test]
+todo(glsl) draw quad
+probe (0,0) rgba(1024.0, 0, 0, 0)
+
+[pixel shader]
+float4 main() : sv_target
+{
+    int i;
+    [unroll(1337)]
+    for (i = 0; i < 1337; ++i);
+
+    return float4(i, 0, 0, 0);
+}
+
+[test]
+todo(glsl) draw quad
+probe (0,0) rgba(1337.0, 0, 0, 0)