Francisco Casas : tests: Test current failure when propagating swizzles.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: e6b7b38a29184ef1d36aad6b9fef3de4c3c86df2
URL:    https://gitlab.winehq.org/wine/vkd3d/-/commit/e6b7b38a29184ef1d36aad6b9fef3d...

Author: Francisco Casas 
Date:   Thu Nov 23 12:59:31 2023 -0300

tests: Test current failure when propagating swizzles.

The included test fails because copy_propagation_transform_swizzle()
is using the value recorded for the variable when the swizzle is being
read, and not the swizzle's load.

---

Makefile.am                           |  1 +
 tests/hlsl/hard-copy-prop.shader_test | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/Makefile.am b/Makefile.am
index c92d7b83..2616a857 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -103,6 +103,7 @@ vkd3d_shader_tests = \
    tests/hlsl/gather.shader_test \
    tests/hlsl/getdimensions.shader_test \
    tests/hlsl/half.shader_test \
+	tests/hlsl/hard-copy-prop.shader_test \
    tests/hlsl/initializer-flatten.shader_test \
    tests/hlsl/initializer-implicit-array.shader_test \
    tests/hlsl/initializer-invalid-arg-count.shader_test \
diff --git a/tests/hlsl/hard-copy-prop.shader_test b/tests/hlsl/hard-copy-prop.shader_test
new file mode 100644
index 00000000..52746b4f
--- /dev/null
+++ b/tests/hlsl/hard-copy-prop.shader_test
@@ -0,0 +1,24 @@
+[pixel shader]
+float cond;
+
+float4 main() : sv_target
+{
+    float4 a = {1, 2, 3, 4};
+    float4 b;
+
+    // invalidate a
+    if (cond)
+        a = float4(-1, -2, -3, -4);
+
+    b = a;
+    a.y = 357;
+    return b.y;
+}
+
+[test]
+uniform 0 float 0.0
+draw quad
+todo(sm<6) probe all rgba (2.0, 2.0, 2.0, 2.0)
+uniform 0 float 1.0
+draw quad
+todo(sm<6) probe all rgba (-2.0, -2.0, -2.0, -2.0)