[clang] [AMDGPU] Add GFX12 __builtin_amdgcn_s_sleep_var (PR #77926)

[Matt Arsenault via cfe-commits]

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@@ -0,0 +1,11 @@
+// REQUIRES: amdgpu-registered-target
+
+// RUN: %clang_cc1 -triple amdgcn-unknown-unknown -target-cpu gfx1100 -verify -S -emit-llvm -o - %s
+
+typedef unsigned int uint;
+typedef uint uint2 __attribute__((ext_vector_type(2)));
+typedef uint uint4 __attribute__((ext_vector_type(4)));
+
+kernel void builtins_amdgcn_bvh_err(global uint2* out, uint addr, uint data, uint4 data1, uint offset) {
+  *out = __builtin_amdgcn_ds_bvh_stack_rtn(addr, data, data1, offset); // expected-error {{'__builtin_amdgcn_ds_bvh_stack_rtn' must be a constant integer}}
+}
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arsenm wrote:

Unrelated test added?

https://github.com/llvm/llvm-project/pull/77926