Index: test/ubsan/TestCases/TypeCheck/null.cpp =================================================================== --- test/ubsan/TestCases/TypeCheck/null.cpp +++ test/ubsan/TestCases/TypeCheck/null.cpp @@ -1,20 +1,50 @@ -// RUN: %clangxx -fsanitize=null %s -O3 -o %t -// RUN: %run %t l 2>&1 | FileCheck %s --check-prefix=CHECK-LOAD -// RUN: %expect_crash %run %t s 2>&1 | FileCheck %s --check-prefix=CHECK-STORE -// RUN: %run %t r 2>&1 | FileCheck %s --check-prefix=CHECK-REFERENCE -// RUN: %run %t m 2>&1 | FileCheck %s --check-prefix=CHECK-MEMBER -// RUN: %run %t f 2>&1 | FileCheck %s --check-prefix=CHECK-MEMFUN +// RUN: %clangxx -fsanitize=null -fno-sanitize-recover=null -g %s -O3 -o %t +// RUN: not %run %t l 2>&1 | FileCheck %s --check-prefix=CHECK-LOAD +// RUN: not %run %t s 2>&1 | FileCheck %s --check-prefix=CHECK-STORE +// RUN: not %run %t r 2>&1 | FileCheck %s --check-prefix=CHECK-REFERENCE +// RUN: not %run %t m 2>&1 | FileCheck %s --check-prefix=CHECK-MEMBER +// RUN: not %run %t f 2>&1 | FileCheck %s --check-prefix=CHECK-MEMFUN +// RUN: not %run %t t 2>&1 | FileCheck %s --check-prefix=CHECK-VCALL +// RUN: not %run %t u 2>&1 | FileCheck %s --check-prefix=CHECK-VCALL2 + +#include struct S { int f() { return 0; } int k; }; +struct T { + virtual int v() { return 1; } +}; + +struct U : T { + virtual int v() { return 2; } +}; + +static inline void break_optimization(void *arg) { + __asm__ __volatile__("" : : "r" (arg) : "memory"); +} + int main(int, char **argv) { int *p = 0; S *s = 0; + T *t = 0; + U *u = 0; + + if (argv[1][0] == 'T') { + t = new T; + } + if (argv[1][0] == 'U') { + u = new U; + } + + break_optimization(s); + break_optimization(t); + break_optimization(u); (void)*p; // ok! + (void)*t; // ok! switch (argv[1][0]) { case 'l': @@ -34,5 +64,13 @@ case 'f': // CHECK-MEMFUN: null.cpp:[[@LINE+1]]:15: runtime error: member call on null pointer of type 'S' return s->f(); + case 't': + case 'T': + // CHECK-VCALL: null.cpp:[[@LINE+1]]:15: runtime error: member call on null pointer of type 'T' + return t->v(); + case 'u': + case 'U': + // CHECK-VCALL2: null.cpp:[[@LINE+1]]:15: runtime error: member call on null pointer of type 'U' + return u->v(); } }