int main() { //% self.filecheck("c", "ldraa.c") // CHECK: EXC_BAD_ACCESS // CHECK-NEXT: Note: Possible pointer authentication failure detected. // CHECK-NEXT: Found authenticated load instruction at address=0x{{.*}} (ldraa.c:[[@LINE+3]]:3). long long foo = 0; asm volatile ( "ldraa x9, [%[target]] \n" /* Outputs */ : /* Inputs */ : [target] "r"(&foo) /* Clobbers */ : ); return 1; } // Expected codegen, register state, and exception message without ptrauth diagnostics: // * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x2000016fdffc38) // frame #0: 0x0000000100007fa8 ldraa`main + 12 // ldraa`main: // -> 0x100007fa8 <+12>: ldraa x9, [x8] // 0x100007fac <+16>: orr w0, wzr, #0x1 // 0x100007fb0 <+20>: add sp, sp, #0x10 ; =0x10 // 0x100007fb4 <+24>: ret // Target 0: (ldraa) stopped. // (lldb) p/x $x8 // (unsigned long) $0 = 0x000000016fdffc38 // (lldb) x/8 $x8 // 0x16fdffc38: 0x00000000 0x00000000 0x80254f30 0x00000001 // 0x16fdffc48: 0x00000000 0x00000000 0x00000000 0x00000000