clang/test/Sema/builtin-alloca-with-align.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 void test1(int a) {
   4   __builtin_alloca_with_align(a, 32);
   5 }
   6
   7 void test2(int a) {
   8   __builtin_alloca_with_align(a, -32); // expected-error {{requested alignment is not a power of 2}}
   9 }
  10
  11 void test3(unsigned *b) {
  12   __builtin_alloca_with_align(b, 32); // expected-error {{incompatible pointer to integer conversion passing 'unsigned int *' to parameter of type}}
  13 }
  14
  15 void test4(int a) {
  16   __builtin_alloca_with_align(a, 32, 0); // expected-error {{too many arguments to function call, expected 2, have 3}}
  17 }
  18
  19 void test5(int a) {
  20   __builtin_alloca_with_align(a, 31); // expected-error {{requested alignment is not a power of 2}}
  21 }
  22
  23 void test6(int a, int j) {
  24   __builtin_alloca_with_align(a, j); // expected-error {{must be a constant integer}}
  25 }
  26
  27 void test7(int a) {
  28   __builtin_alloca_with_align(a, 2); // expected-error {{requested alignment must be 8 or greater}}
  29 }
  30
  31 void test8(void) {
  32   __builtin_alloca_with_align(sizeof(__INT64_TYPE__), __alignof__(__INT64_TYPE__)); // expected-warning {{second argument to __builtin_alloca_with_align is supposed to be in bits}}
  33 #if defined(__csky__)
  34   // expected-error@-2 {{requested alignment must be 8 or greater}}
  35   // Because the alignment of long long is 4 in CSKY target
  36 #endif
  37 }