[PATCH v2 2/4] tests: Test register(cX) reservations.

[Francisco Casas]

From: Francisco Casas

---
 tests/hlsl/register-reservations.shader_test | 108 +++++++++++++++++++
 1 file changed, 108 insertions(+)

diff --git a/tests/hlsl/register-reservations.shader_test b/tests/hlsl/register-reservations.shader_test
index 9539b05ff..056c6d1b5 100644
--- a/tests/hlsl/register-reservations.shader_test
+++ b/tests/hlsl/register-reservations.shader_test
@@ -1,6 +1,114 @@
+[pixel shader fail(sm<6) todo]
+// Overlapping register(cX) reservations should only be allowed on SM6.
+float a : register(c0);
+float b : register(c0);
+
+float4 main() : sv_target
+{
+    return a + b;
+}
+
+
+[require]
+shader model < 4.0
+
+[pixel shader]
+struct
+{
+    float2 a;
+    float b;
+} apple : register(c2);
+
+float4 main() : sv_target
+{
+    return float4(apple.a, apple.b, 0);
+}
+
+[test]
+uniform 0 float4 0.1 0.2 0.3 0.4
+uniform 4 float4 1.1 1.2 1.3 1.4
+uniform 8 float4 2.1 2.2 2.3 2.4
+uniform 12 float4 3.1 3.2 3.3 3.4
+draw quad
+todo probe all rgba (2.1, 2.2, 3.1, 0.0)
+
+
 [require]
 shader model >= 4.0

+[pixel shader]
+struct
+{
+    float2 a;
+    float b;
+} apple : register(c2);
+
+float4 main() : sv_target
+{
+    return float4(apple.a, apple.b, 0);
+}
+
+[test]
+uniform 0 float4 0.1 0.2 0.3 0.4
+uniform 4 float4 1.1 1.2 1.3 1.4
+uniform 8 float4 2.1 2.2 2.3 2.4
+uniform 12 float4 3.1 3.2 3.3 3.4
+draw quad
+todo(sm<6) probe all rgba (2.1, 2.2, 2.3, 0.0)
+
+
+[pixel shader]
+// On SM4 register(cX) has no effect unless in the $Globals buffer.
+cbuffer extra
+{
+    float a : register(c1);
+};
+
+float4 main() : sv_target
+{
+    return a;
+}
+
+[test]
+uniform 0 float 100
+uniform 4 float 101
+draw quad
+probe all rgba (100, 100, 100, 100)
+
+
+[pixel shader fail(sm>=6)]
+// On SM4 register(cX) has no effect unless in the $Globals buffer.
+float4 main(uniform float a : register(c1)) : sv_target
+{
+    return a;
+}
+
+[test]
+uniform 0 float 100
+uniform 4 float 101
+draw quad
+probe all rgba (100, 100, 100, 100)
+
+[pixel shader todo]
+cbuffer c
+{
+  float a : packoffset(c1);
+  float b : packoffset(c2) : register(c1);
+  // ^ register(c1) ignored for cbuffer that is not $Globals.
+}
+
+float4 main() : sv_target
+{
+    return float4(a, b, 0, 0);
+}
+
+[test]
+uniform 0 float 200
+uniform 4 float 201
+uniform 8 float 202
+todo(sm<6) draw quad
+todo(sm<6) probe all rgba (201.0, 202.0, 0.0, 0.0)
+

[texture 0]
 size (1, 1)