diff --git a/tests/hlsl/entry-point-semantics.shader_test b/tests/hlsl/entry-point-semantics.shader_test
index d177b037..b87dca4d 100644
--- a/tests/hlsl/entry-point-semantics.shader_test
+++ b/tests/hlsl/entry-point-semantics.shader_test
@@ -2,9 +2,10 @@
 % definition and its declarations.
 
 [vertex shader]
-void main(out float tex : texcoord, inout float4 pos : sv_position)
+void main(float4 pos : position, out float tex : texcoord, out float4 out_pos : sv_position)
 {
     tex = 0.2;
+    out_pos = pos;
 }
 
 [pixel shader fail]
@@ -53,12 +54,13 @@ probe (0, 0) rgba (0.2, 0.2, 0.2, 0.2)
 
 
 [vertex shader]
-void main(out float4 tex[4] : texcoord, inout float4 pos : sv_position)
+void main(float4 pos : position, out float4 tex[4] : texcoord, out float4 out_pos : sv_position)
 {
     tex[0] = float4(10.0, 11.0, 12.0, 13.0);
     tex[1] = float4(20.0, 21.0, 22.0, 23.0);
     tex[2] = float4(30.0, 31.0, 32.0, 33.0);
     tex[3] = float4(40.0, 41.0, 42.0, 43.0);
+    out_pos = pos;
 }
 
 
@@ -196,10 +198,11 @@ struct apple
     float4 tex[2] : TEXCOORD0;
 };
 
-void main(out apple apl, inout float4 pos : sv_position)
+void main(float4 pos : position, out apple apl, out float4 out_pos : sv_position)
 {
     apl.tex[0] = float4(1, 2, 3, 4);
     apl.tex[1] = float4(10, 20, 30, 40);
+    out_pos = pos;
 }
 
 [pixel shader]
@@ -220,10 +223,11 @@ struct apple
     float2 tex : TEXCOORD0;
 };
 
-void main(out apple apls[2], inout float4 pos : sv_position)
+void main(float4 pos : position, out apple apls[2], out float4 out_pos : sv_position)
 {
     apls[0].tex = float2(1, 2);
     apls[1].tex = float2(3, 4);
+    out_pos = pos;
 }
 
 
@@ -233,29 +237,32 @@ struct apple
     float2 f : SEMANTIC;
 };
 
-void main(out apple a, out apple b, inout float4 pos : sv_position)
+void main(float4 pos : position, out apple a, out apple b, out float4 out_pos : sv_position)
 {
     a.f = float2(1, 2);
     b.f = float2(3, 4);
+    out_pos = pos;
 }
 
 
 % Semantic names are case-insensitive.
 [vertex shader fail]
-void main(out float2 a : sem0, out float2 b : SEM, inout float4 pos : sv_position)
+void main(float4 pos : position, out float2 a : sem0, out float2 b : SEM, out float4 out_pos : sv_position)
 {
     a = float2(1, 2);
     b = float2(3, 4);
+    out_pos = pos;
 }
 
 
 [vertex shader]
-void main(out float4 tex[4] : texcoord, inout float4 pos : sv_position)
+void main(float4 pos : position, out float4 tex[4] : texcoord, out float4 out_pos : sv_position)
 {
     tex[0] = float4(10.0, 11.0, 12.0, 13.0);
     tex[1] = float4(20.0, 21.0, 22.0, 23.0);
     tex[2] = float4(30.0, 31.0, 32.0, 33.0);
     tex[3] = float4(40.0, 41.0, 42.0, 43.0);
+    out_pos = pos;
 }
 
 
diff --git a/tests/hlsl/for.shader_test b/tests/hlsl/for.shader_test
index 1392118b..9407c81b 100644
--- a/tests/hlsl/for.shader_test
+++ b/tests/hlsl/for.shader_test
@@ -1,7 +1,8 @@
 [vertex shader]
-void main(out float tex : texcoord, inout float4 pos : sv_position)
+void main(float4 pos : position, out float tex : texcoord, out float4 out_pos : sv_position)
 {
     tex = pos.x;
+    out_pos = pos;
 }
 
 [pixel shader]
diff --git a/tests/hlsl/sample-bias.shader_test b/tests/hlsl/sample-bias.shader_test
index e56945d0..5b7067b5 100644
--- a/tests/hlsl/sample-bias.shader_test
+++ b/tests/hlsl/sample-bias.shader_test
@@ -12,9 +12,10 @@ levels 2
 0.0 0.0 1.0 0.0
 
 [vertex shader]
-void main(out float2 tex : texcoord, inout float4 pos : sv_position)
+void main(float4 pos : position, out float2 tex : texcoord, out float4 out_pos : sv_position)
 {
     tex = pos.xy;
+    out_pos = pos;
 }
 
 [pixel shader]
diff --git a/tests/hlsl/struct-semantics.shader_test b/tests/hlsl/struct-semantics.shader_test
index 43b07bb8..c88006eb 100644
--- a/tests/hlsl/struct-semantics.shader_test
+++ b/tests/hlsl/struct-semantics.shader_test
@@ -1,6 +1,6 @@
 [input layout]
 0 r32g32b32a32 float texcoord
-0 r32g32 float sv_position
+0 r32g32 float position
 
 [vertex buffer 0]
 0.0 1.0 0.0 1.0   -2.0 -2.0
@@ -10,7 +10,16 @@
 
 [vertex shader]
 
-struct vertex
+struct in_vertex
+{
+    struct
+    {
+        float4 texcoord : texcoord;
+        float4 pos : position;
+    } m;
+};
+
+struct out_vertex
 {
     struct
     {
@@ -19,8 +28,10 @@ struct vertex
     } m;
 };
 
-void main(inout struct vertex v)
+void main(struct in_vertex i, out struct out_vertex o)
 {
+    o.m.pos = i.m.pos;
+    o.m.texcoord = i.m.texcoord;
 }
 
 [pixel shader]
diff --git a/tests/hlsl/trigonometry.shader_test b/tests/hlsl/trigonometry.shader_test
index f52d01de..85988119 100644
--- a/tests/hlsl/trigonometry.shader_test
+++ b/tests/hlsl/trigonometry.shader_test
@@ -1,7 +1,8 @@
 [vertex shader]
-void main(out float tex : texcoord, inout float4 pos : sv_position)
+void main(float4 pos : position, out float tex : texcoord, out float4 out_pos : sv_position)
 {
     tex = (pos.x + 1) * 320;
+    out_pos = pos;
 }
 
 [pixel shader]
diff --git a/tests/shader_runner.c b/tests/shader_runner.c
index 4847ec75..9b373e01 100644
--- a/tests/shader_runner.c
+++ b/tests/shader_runner.c
@@ -579,8 +579,9 @@ static void parse_test_directive(struct shader_runner *runner, const char *line)
         };
 
         static const char vs_source[] =
-            "void main(inout float4 position : sv_position)\n"
+            "float4 main(float4 pos : position) : sv_position\n"
             "{\n"
+            "    return pos;\n"
             "}";
 
         if (!shader_runner_get_resource(runner, RESOURCE_TYPE_RENDER_TARGET, 0))
@@ -601,7 +602,7 @@ static void parse_test_directive(struct shader_runner *runner, const char *line)
         vkd3d_array_reserve((void **)&runner->input_elements, &runner->input_element_capacity,
                 1, sizeof(*runner->input_elements));
         element = &runner->input_elements[0];
-        element->name = strdup("sv_position");
+        element->name = strdup("position");
         element->slot = 0;
         element->format = DXGI_FORMAT_R32G32_FLOAT;
         element->texel_size = sizeof(*quad);