Add default constructor for Ptr type (#7214)

* Add default constructor for Ptr type

* Make pointers c-style type, remove __init() constructor

1 files changed, 26 insertions, 0 deletions

diff --git a/tests/spirv/pointer-default-constructor.slang b/tests/spirv/pointer-default-constructor.slang
new file mode 100644
index 000000000..6ab29f125
--- /dev/null
+++ b/tests/spirv/pointer-default-constructor.slang
@@ -0,0 +1,26 @@
+//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-vk -emit-spirv-directly -output-using-type
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name outputBuffer
+RWStructuredBuffer<uint> outputBuffer;
+
+struct MyStruct
+{
+    int* ptr;
+}
+
+[shader("compute")]
+[numthreads(1, 1, 1)]
+void computeMain()
+{
+    float* a = {};
+    MyStruct ms = {};
+
+    // CHECK: 0
+    outputBuffer[0] = uint(uint64_t(a));
+    // CHECK: 1
+    outputBuffer[1] = uint(a == nullptr);
+    // CHECK: 0
+    outputBuffer[2] = uint(uint64_t(ms.ptr));
+    // CHECK: 1
+    outputBuffer[3] = uint(ms.ptr == nullptr);
+}