Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/torture/pr60183.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
---|---|
date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
children |
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/* { dg-do run } */ /* { dg-require-effective-target size32plus } */ /* Large so an out-of-bound read will crash. */ unsigned char c[0x30001] = { 1 }; int j = 2; static void foo (unsigned long *x, unsigned char *y) { int i; unsigned long w = x[0]; for (i = 0; i < j; i++) { w += *y; y += 0x10000; w += *y; y += 0x10000; } x[1] = w; } __attribute__ ((noinline, noclone)) void bar (unsigned long *x) { foo (x, c); } int main () { unsigned long a[2] = { 0, -1UL }; asm volatile (""::"r" (c):"memory"); c[0] = 0; bar (a); if (a[1] != 0) __builtin_abort (); return 0; }