From 38b0af3537f5d8412f0d69e39e38c5603ff62c15 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Thu, 10 Aug 2023 14:58:41 -0700
Subject: Add support for ConstBufferPointer on Vulkan. (#3089)

* Add support for `ConstBufferPointer` on Vulkan.

* Add spv compilation test.

* Fix.

* Fix code review issues.

---------

Co-authored-by: Yong He <yhe@nvidia.com>
---
 tests/hlsl-intrinsic/const-buffer-pointer.slang | 39 +++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 tests/hlsl-intrinsic/const-buffer-pointer.slang

(limited to 'tests')

diff --git a/tests/hlsl-intrinsic/const-buffer-pointer.slang b/tests/hlsl-intrinsic/const-buffer-pointer.slang
new file mode 100644
index 000000000..33b538a60
--- /dev/null
+++ b/tests/hlsl-intrinsic/const-buffer-pointer.slang
@@ -0,0 +1,39 @@
+//TEST:SIMPLE(filecheck=CHECK):-target glsl -profile glsl_450 -entry main -stage compute
+//TEST:SIMPLE(filecheck=SPV):-target spirv -profile glsl_450 -entry main -stage compute
+
+// SPV: EntryPoint GLCompute {{.*}} "main" {{.*}}
+
+struct MyStruct
+{
+    float4 position;
+    float4x4 transform;
+}
+
+// CHECK: layout(buffer_reference, std430, buffer_reference_align = 16) readonly buffer BufferPointer_MyStruct
+// CHECK-NEXT: {
+// CHECK-NEXT: MyStruct{{.*}} _data;
+// CHECK-NEXT: }
+
+// CHECK: struct Globals
+// CHECK-NEXT: {
+// CHECK-NEXT: BufferPointer_MyStruct{{.*}} pStruct
+// CHECK-NEXT: }
+
+// CHECK: void main
+// CHECK: MyStruct{{.*}} s{{.*}} = ((gGlobals{{.*}}.pStruct{{.*}})._data);
+
+struct Globals
+{
+    ConstBufferPointer<MyStruct> pStruct;
+}
+
+ConstantBuffer<Globals> gGlobals;
+
+RWStructuredBuffer<uint> outputBuffer;
+
+[numthreads(1,1,1)]
+void main(int3 tid: SV_DispatchThreadID)
+{
+    MyStruct s = gGlobals.pStruct.get();
+    outputBuffer[tid.x] = uint(s.position.x);
+}
\ No newline at end of file
-- 
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