[clang] [AMDGPU] Allow overload of __builtin_amdgcn_mov/update_dpp (PR #112447)

[Matt Arsenault via cfe-commits]

================
@@ -7,3 +7,37 @@ void test_gfx9_fmed3h(global half *out, half a, half b, half c)
 {
   *out = __builtin_amdgcn_fmed3h(a, b, c); // expected-error {{'__builtin_amdgcn_fmed3h' needs target feature gfx9-insts}}
 }
+
+void test_mov_dpp(global int* out, int src, int i)
+{
+  *out = __builtin_amdgcn_mov_dpp(src, i, 0, 0, false); // expected-error{{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0, i, 0, false); // expected-error{{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0, 0, i, false); // expected-error{{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0, 0, 0, i); // expected-error{{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0.1, 0, 0, false); // expected-error{{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0, 0.1, 0, false); // expected-error{{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0, 0, 0.1, false); // expected-error{{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0, 0, 0, 0.1); // expected-error{{argument to '__builtin_amdgcn_mov_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0, 0, 0); // expected-error{{too few arguments to function call, expected 5, have 4}}
+  *out = __builtin_amdgcn_mov_dpp(src, 0, 0, 0, false, 1); // expected-error{{too many arguments to function call, expected at most 5, have 6}}
+  *out = __builtin_amdgcn_mov_dpp(out, 0, 0, 0, false); // expected-error{{used type '__global int *__private' where integer or floating point type is required}}
+  *out = __builtin_amdgcn_mov_dpp("aa", 0, 0, 0, false); // expected-error{{used type '__constant char[3]' where integer or floating point type is required}}
+}
+
+void test_update_dpp(global int* out, int arg1, int arg2, int i)
+{
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, i, 0, 0, false); // expected-error{{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, i, 0, false); // expected-error{{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, 0, i, false); // expected-error{{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, 0, 0, i); // expected-error{{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0.1, 0, 0, false); // expected-error{{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, 0.1, 0, false); // expected-error{{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, 0, 0.1, false); // expected-error{{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, 0, 0, 0.1); // expected-error{{argument to '__builtin_amdgcn_update_dpp' must be a constant integer}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, 0, 0); // expected-error{{too few arguments to function call, expected 6, have 5}}
+  *out = __builtin_amdgcn_update_dpp(arg1, arg2, 0, 0, 0, false, 1); // expected-error{{too many arguments to function call, expected at most 6, have 7}}
+  *out = __builtin_amdgcn_update_dpp(out, arg2, 0, 0, 0, false); // expected-error{{used type '__global int *__private' where integer or floating point type is required}}
+  *out = __builtin_amdgcn_update_dpp(arg1, out, 0, 0, 0, false); // expected-error{{used type '__global int *__private' where integer or floating point type is required}}
+  *out = __builtin_amdgcn_update_dpp("aa", arg2, 0, 0, 0, false); // expected-error{{used type '__constant char[3]' where integer or floating point type is required}}
+  *out = __builtin_amdgcn_update_dpp(arg1, "aa", 0, 0, 0, false); // expected-error{{used type '__constant char[3]' where integer or floating point type is required}}
+}
----------------
arsenm wrote:

Test some unhandleable types, like aggregates and complex 

https://github.com/llvm/llvm-project/pull/112447