1 files changed, 48 insertions, 0 deletions
diff --git a/tests/spirv/spec-constant-sized-array-3.slang b/tests/spirv/spec-constant-sized-array-3.slang
new file mode 100644
index 000000000..39106aa5b
--- /dev/null
+++ b/tests/spirv/spec-constant-sized-array-3.slang
@@ -0,0 +1,48 @@
+//TEST:SIMPLE(filecheck=CHECK): -target spirv
+//TEST(compute, vulkan):COMPARE_COMPUTE(filecheck-buffer=BUF):-vk -output-using-type
+
+// CHECK: %[[C0:[0-9A-Za-z_]+]] = OpSpecConstant %int 4
+// CHECK: %[[I1:[0-9A-Za-z_]+]] = OpConstant %int 1
+// CHECK: %[[COP0:[0-9A-Za-z_]+]] = OpSpecConstantOp %int BitwiseAnd %[[C0]] %[[I1]]
+// CHECK: %[[I2:[0-9A-Za-z_]+]] = OpConstant %int 2
+// CHECK: %[[COP1:[0-9A-Za-z_]+]] = OpSpecConstantOp %int BitwiseOr %[[COP0]] %[[I2]]
+// CHECK: %[[COP2:[0-9A-Za-z_]+]] = OpSpecConstantOp %int IAdd %[[I1]] %[[COP1]]
+// CHECK: %[[COP3:[0-9A-Za-z_]+]] = OpSpecConstantOp %int ShiftLeftLogical %[[C0]] %[[COP2]]
+// CHECK: %[[ARR_TYPE:[0-9A-Za-z_]+]] = OpTypeArray %float %[[COP3]]
+// CHECK: %[[PT_TYPE:[0-9A-Za-z_]+]] = OpTypePointer Function %[[ARR_TYPE]]
+
+[SpecializationConstant]
+const int constValue0 = 4;
+
+//TEST_INPUT:ubuffer(data=[0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<float> outputBuffer;
+
+static const int size = constValue0 << (1 + (constValue0 & 0x01 | 0x02));   // 4 << 3 = 32
+
+// This test is to verify that if two array has the same spec constant size, they are the same type.
+void func(out float buffer[constValue0 << (1 + (constValue0 & 0x01 | 0x02))], int idx)
+{
+    for (uint i = 0; i < size; i++)
+    {
+        buffer[i] = i;
+    }
+}
+
+[shader("compute")]
+[numthreads(1, 1, 1)]
+void computeMain(uint tid:SV_DispatchThreadID)
+{
+    float buffer[constValue0 << (1 + (constValue0 & 0x01 | 0x02))];
+    // CHECK: OpVariable %[[PT_TYPE]] Function
+
+    func(buffer, tid);
+
+    float temp = buffer[0];
+    for (uint i = 0; i < size; i++)
+    {
+        temp += buffer[i] * 2;
+    }
+    // Result will be (0 + size-1) * size = (0 + 31) * 32 * 2 = 992
+    outputBuffer[0] = temp;
+    // BUF: 992
+}