41 lines · c
1// RUN: %clang_cc1 -triple thumbv6m -fsyntax-only -verify %s2 3// Armv6-M does not support exclusive loads/stores at all, so all uses of4// __builtin_arm_ldrex[d] and __builtin_arm_strex[d] is forbidden.5 6int test_ldrex(char *addr) {7 int sum = 0;8 sum += __builtin_arm_ldrex(addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}9 sum += __builtin_arm_ldrex((short *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}10 sum += __builtin_arm_ldrex((int *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}11 sum += __builtin_arm_ldrex((long long *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}12 return sum;13}14 15int test_strex(char *addr) {16 int res = 0;17 res |= __builtin_arm_strex(4, addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}18 res |= __builtin_arm_strex(42, (short *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}19 res |= __builtin_arm_strex(42, (int *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}20 res |= __builtin_arm_strex(42, (long long *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}21 return res;22}23 24int test_ldrexd(char *addr) {25 int sum = 0;26 sum += __builtin_arm_ldrexd(addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}27 sum += __builtin_arm_ldrexd((short *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}28 sum += __builtin_arm_ldrexd((int *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}29 sum += __builtin_arm_ldrexd((long long *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}30 return sum;31}32 33int test_strexd(char *addr) {34 int res = 0;35 res |= __builtin_arm_strexd(4, addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}36 res |= __builtin_arm_strexd(42, (short *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}37 res |= __builtin_arm_strexd(42, (int *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}38 res |= __builtin_arm_strexd(42, (long long *)addr); // expected-error {{load and store exclusive builtins are not available on this architecture}}39 return res;40}41