From 7758625d3fea67e55e98e7e4103d56c9918365be Mon Sep 17 00:00:00 2001
From: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
Date: Fri, 29 Aug 2025 15:52:34 -0700
Subject: [CBP] Pointer frontend changes + groupshared pointer support (#7848)

Resolves #7628
Resolves: #8197

Primary Goals:
1. Add `Access` to pointer
2. AddressSpace::GroupShared support for pointers (SPIR-V)
3. Add `__getAddress()` to replace `&`
* `&` is not updated to `require(cpu)` since slangpy uses `&`. This
means we must: (1) merge PR; (2) replace `&` with `__getAddress()`; (3)
add `require(cpu)` to `&`

Changes:
* Added to `Ptr` the `Access` generic argument & logic (for
`Access::Read`).
* Moved the generic argument `AddressSpace` from `Ptr` to the end of the
type.
* Added pointer casting support between any `Ptr` as long as the
`AddressSpace` is the same
* Disallow globallycoherent T* and coherent T*
* Disallow const T*, T const*, and const T*
* Fixed .natvis display of `ConstantValue` `ValOperandNode`
* Support generic resolution of type-casted integers
* Added `VariablePointer` emitting for spirv + other minor logic needed
for groupshared pointers

Breaking Changes:
* Anyone using the `AddressSpace` of `Ptr` will now have to account for
the `Access` argument
* we disallow various syntax paired with `Ptr` and `T*`

---------

Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>
---
 tests/spirv/ptr-vector-member.slang | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

(limited to 'tests/spirv/ptr-vector-member.slang')

diff --git a/tests/spirv/ptr-vector-member.slang b/tests/spirv/ptr-vector-member.slang
index 0683d8838..6e493b4c7 100644
--- a/tests/spirv/ptr-vector-member.slang
+++ b/tests/spirv/ptr-vector-member.slang
@@ -1,19 +1,17 @@
-//TEST:SIMPLE(filecheck=CHECK): -target spirv
+//DISABLE_TEST:SIMPLE(filecheck=SPIRV):-stage compute -entry computeMain -target spirv
+//DISABLE_TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-vk -output-using-type -emit-spirv-directly
 
-// CHECK: %[[PTR:[0-9a-zA-Z_]+]] = OpAccessChain %_ptr_PhysicalStorageBuffer_uint %16 %int_0
-// CHECK: %{{.*}} = OpAtomicIAdd %uint %[[PTR]] %uint_1 %uint_0 %uint_1
+// SPIRV: OpEntryPoint
+// SPIRV-NOT: error
 
-struct Push2
-{
-    uint4 * value;
-};
-
-[[vk::push_constant]] Push2 push2;
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
+uniform int4* output;
 
 [shader("compute")]
 [numthreads(1, 1, 1)]
-void main()
+void computeMain()
 {
-    uint * v = &push2.value[0].x;
+    // CHECK: 1
+    int* v = __getAddress(output[0].x);
     InterlockedAdd(*v, 1);
 }
\ No newline at end of file
-- 
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