void foo() {} int main() { //% self.filecheck("c", "blraa.c") // CHECK: stop reason = EXC_BAD_ACCESS // CHECK-NEXT: Note: Possible pointer authentication failure detected. // CHECK-NEXT: Found authenticated indirect branch at address=0x{{.*}} (blraa.c:[[@LINE+1]]:3). asm volatile ( "mov x9, #0xbad \n" "blraa %[target], x9 \n" /* Outputs */ : /* Inputs */ : [target] "r"(&foo) /* Clobbers */ : "x9" ); return 1; } // Expected codegen and exception message without ptrauth diagnostics: // * thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x2000000100007f9c) // frame #0: 0x0000000100007f9c blraa2`foo // blraa2`foo: // 0x100007f9c <+0>: ret // // blraa2`main: // 0x100007fa0 <+0>: nop // 0x100007fa4 <+4>: ldr x8, #0x5c // 0x100007fa8 <+8>: mov x9, #0xbad