Merge pull request #4269 from Feoramund/fix-4256

Specify integer-like only for some `atomic_*` intrinsics

src/check_builtin.cpp

@@ -4969,16 +4969,14 @@ gb_internal bool check_builtin_procedure(CheckerContext *c, Operand *operand, As
 			check_assignment(c, &x, elem, builtin_name);
 
 			Type *t = type_deref(operand->type);
-			switch (id) {
-			case BuiltinProc_atomic_add:
-			case BuiltinProc_atomic_sub:
-				if (!is_type_numeric(t)) {
+			if (id != BuiltinProc_atomic_exchange) {
+				if (!is_type_integer_like(t)) {
 					gbString str = type_to_string(t);
-					error(operand->expr, "Expected a numeric type for '%.*s', got %s", LIT(builtin_name), str);
+					error(operand->expr, "Expected an integer type for '%.*s', got %s", LIT(builtin_name), str);
 					gb_string_free(str);
 				} else if (is_type_different_to_arch_endianness(t)) {
 					gbString str = type_to_string(t);
-					error(operand->expr, "Expected a numeric type of the same platform endianness for '%.*s', got %s", LIT(builtin_name), str);
+					error(operand->expr, "Expected an integer type of the same platform endianness for '%.*s', got %s", LIT(builtin_name), str);
 					gb_string_free(str);
 				}
 			}
@@ -5014,19 +5012,16 @@ gb_internal bool check_builtin_procedure(CheckerContext *c, Operand *operand, As
 			}
 
 			Type *t = type_deref(operand->type);
-			switch (id) {
-			case BuiltinProc_atomic_add_explicit:
-			case BuiltinProc_atomic_sub_explicit:
-				if (!is_type_numeric(t)) {
+			if (id != BuiltinProc_atomic_exchange_explicit) {
+				if (!is_type_integer_like(t)) {
 					gbString str = type_to_string(t);
-					error(operand->expr, "Expected a numeric type for '%.*s', got %s", LIT(builtin_name), str);
+					error(operand->expr, "Expected an integer type for '%.*s', got %s", LIT(builtin_name), str);
 					gb_string_free(str);
 				} else if (is_type_different_to_arch_endianness(t)) {
 					gbString str = type_to_string(t);
-					error(operand->expr, "Expected a numeric type of the same platform endianness for '%.*s', got %s", LIT(builtin_name), str);
+					error(operand->expr, "Expected an integer type of the same platform endianness for '%.*s', got %s", LIT(builtin_name), str);
 					gb_string_free(str);
 				}
-				break;
 			}
 
 			operand->type = elem;