Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/g++.dg/ubsan/align-2.C @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
---|---|
date | Thu, 13 Feb 2020 11:34:05 +0900 |
parents | 04ced10e8804 |
children |
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// Limit this to known non-strict alignment targets. // { dg-do run { target { i?86-*-linux* x86_64-*-linux* } } } // { dg-options "-fsanitize=alignment -Wall -Wno-unused-variable -Wno-address-of-packed-member -std=c++11" } typedef const long int L; struct S { long int l; char buf[1 + sizeof (int) + sizeof (L)]; } s; struct T { char a; int b; long int c; } __attribute__((packed)); struct U { long int a; struct T b; } u; int main (void) { int *p = (int *) &s.buf[1]; L *l = (L *) &s.buf[1 + sizeof(int)]; int &r = *p; auto &r2 = *p; L &lr = *l; // Try an rvalue reference. auto &&r3 = *p; // Don't evaluate the reference initializer twice. int i = 1; int *q = &i; int &qr = ++*q; if (i != 2) __builtin_abort (); int *s = &u.b.b; L *t = &u.b.c; int &r4 = *s; auto &r5 = *s; L &lr2 = *t; auto &&r6 = *s; } // { dg-output "\.C:16:\[0-9]*:\[\^\n\r]*reference binding to misaligned address 0x\[0-9a-fA-F]* for type 'int', which requires 4 byte alignment.*" } // { dg-output "\.C:17:\[0-9]*:\[\^\n\r]*reference binding to misaligned address 0x\[0-9a-fA-F]* for type 'int', which requires 4 byte alignment.*" } // { dg-output "\.C:18:\[0-9]*:\[\^\n\r]*reference binding to misaligned address 0x\[0-9a-fA-F]* for type 'const L', which requires \[48] byte alignment.*" } // { dg-output "\.C:21:\[0-9]*:\[\^\n\r]*reference binding to misaligned address 0x\[0-9a-fA-F]* for type 'int', which requires 4 byte alignment.*" } // { dg-output "\.C:32:\[0-9]*:\[\^\n\r]*reference binding to misaligned address 0x\[0-9a-fA-F]* for type 'int', which requires 4 byte alignment.*" } // { dg-output "\.C:33:\[0-9]*:\[\^\n\r]*reference binding to misaligned address 0x\[0-9a-fA-F]* for type 'int', which requires 4 byte alignment.*" } // { dg-output "\.C:34:\[0-9]*:\[\^\n\r]*reference binding to misaligned address 0x\[0-9a-fA-F]* for type 'const L', which requires \[48] byte alignment.*" } // { dg-output "\.C:35:\[0-9]*:\[\^\n\r]*reference binding to misaligned address 0x\[0-9a-fA-F]* for type 'int', which requires 4 byte alignment" }