From bd6dbaf7c3ea720b4ed39904fe08878f9dcbd947 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Mon, 21 Aug 2023 17:07:34 -0700
Subject: 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>
---
 tests/hlsl/consume-structured-buffer.slang | 35 ++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 tests/hlsl/consume-structured-buffer.slang

(limited to 'tests/hlsl/consume-structured-buffer.slang')

diff --git a/tests/hlsl/consume-structured-buffer.slang b/tests/hlsl/consume-structured-buffer.slang
new file mode 100644
index 000000000..3027b4184
--- /dev/null
+++ b/tests/hlsl/consume-structured-buffer.slang
@@ -0,0 +1,35 @@
+
+//TEST:SIMPLE(filecheck=GLSL):-target glsl -profile glsl_450 -stage compute -entry computeMain
+//TEST:SIMPLE(filecheck=SPIRV):-target spirv -profile glsl_450 -stage compute -entry computeMain
+
+//DISABLED_TEST(compute, vulkan):COMPARE_COMPUTE_EX:-vk -compute -shaderobj -output-using-type -xslang -fvk-use-gl-layout
+
+//TEST_INPUT:ubuffer(data=[0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<float> outputBuffer;
+
+ConsumeStructuredBuffer<float2> consumeBuffer;
+
+// GLSL: layout(std430, binding = 1) buffer StructuredBuffer_float2_t
+// GLSL: vec2 _data[];
+// GLSL: } consumeBuffer_elements_0
+
+// GLSL: layout(std430, binding = 2) buffer StructuredBuffer_int_t
+// GLSL: int _data[];
+// GLSL: } consumeBuffer_counter
+
+// GLSL: vec2 ConsumeStructuredBuffer_Consume_0()
+// GLSL:    int [[COUNTER:[A-Za-z0-9_]+]] = atomicAdd(consumeBuffer_counter_0._data[0], -1);
+// GLSL:    int [[COUNTER1:[A-Za-z0-9_]+]] = [[COUNTER]] - 1;
+// GLSL:    if{{\s?}}([[COUNTER1]] >= 0)
+// GLSL:    return consumeBuffer_elements_0._data{{\[}}[[COUNTER1]]{{\]}};
+// GLSL:    else
+// GLSL:    return vec2(0.0);
+
+// SPIRV: OpEntryPoint
+
+[numthreads(1, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    var v = consumeBuffer.Consume();
+    outputBuffer[dispatchThreadID.x] = v.x; // expect 1.0
+}
-- 
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