Compile append and consume structured buffers to glsl. (#3142)

* Compile append and consume structured buffers to glsl.

* Fix.

* Update CI config.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 24 insertions, 2 deletions

diff --git a/source/slang/hlsl.meta.slang b/source/slang/hlsl.meta.slang
index b690a5910..3dcdc6c54 100644
--- a/source/slang/hlsl.meta.slang
+++ b/source/slang/hlsl.meta.slang
@@ -7,15 +7,30 @@ typedef uint UINT;
 [ForceInline] float3 __asFloat3(float3 v) { return v; }
 
 __generic<T>
+__intrinsic_op($(kIROp_StructuredBufferGetDimensions))
+uint2 __structuredBufferGetDimensions(AppendStructuredBuffer<T> buffer);
+
+__generic<T>
+__intrinsic_op($(kIROp_StructuredBufferGetDimensions))
+uint2 __structuredBufferGetDimensions(ConsumeStructuredBuffer<T> buffer);
+
+__generic<T>
 __magic_type(HLSLAppendStructuredBufferType)
 __intrinsic_type($(kIROp_HLSLAppendStructuredBufferType))
 struct AppendStructuredBuffer
 {
+    __intrinsic_op($(kIROp_StructuredBufferAppend))
     void Append(T value);
 
+    [ForceInline]
     void GetDimensions(
         out uint numStructs,
-        out uint stride);
+        out uint stride)
+    {
+        let result = __structuredBufferGetDimensions(this);
+        numStructs = result.x;
+        stride = result.y;
+    }
 };
 
 __magic_type(HLSLByteAddressBufferType)
@@ -257,11 +272,18 @@ __magic_type(HLSLConsumeStructuredBufferType)
 __intrinsic_type($(kIROp_HLSLConsumeStructuredBufferType))
 struct ConsumeStructuredBuffer
 {
+    __intrinsic_op($(kIROp_StructuredBufferConsume))
     T Consume();
 
+    [ForceInline]
     void GetDimensions(
         out uint numStructs,
-        out uint stride);
+        out uint stride)
+    {
+        let result = __structuredBufferGetDimensions(this);
+        numStructs = result.x;
+        stride = result.y;
+    }
 };
 
 __generic<T, let N : int>