[clang] [llvm] [AMDGPU][Clang] Add check of size for __builtin_amdgcn_global_load_lds (PR #93064)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -cl-std=CL2.0 -O0 -triple amdgcn-unknown-unknown -target-cpu gfx940 -S -verify -o - %s
+// REQUIRES: amdgpu-registered-target
+
+typedef unsigned int u32;
+
+void test_global_load_lds_unsupported_size(global u32* src, local u32 *dst, u32 size) {
+  __builtin_amdgcn_global_load_lds(src, dst, size, /*offset=*/0, /*aux=*/0); // expected-error{{expression is not an integer constant expression}}
+  __builtin_amdgcn_global_load_lds(src, dst, /*size=*/5, /*offset=*/0, /*aux=*/0); // expected-error{{invalid size value}} expected-note {{size must be 1/2/4}}
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arsenm wrote:

Test 0, -1, 3, 12, 16? 

https://github.com/llvm/llvm-project/pull/93064