Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/torture/pta-ptrarith-3.c @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 1830386684a0 |
children |
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/* { dg-do run } */ /* { dg-options "-fdump-tree-alias" } */ /* { dg-skip-if "" { *-*-* } { "-O0" "-fno-fat-lto-objects" } { "" } } */ extern void abort (void); struct X { int *p; int *q; int *r; }; int __attribute__((noinline)) foo(int i, int j, int k, __SIZE_TYPE__ off) { struct X x; int **p, *q; x.p = &i; x.q = &j; x.r = &k; p = &x.q; p += off; /* *p points to { i, j, k } */ q = *p; return *q; } int main() { if (foo(1, 2, 3, -1) != 1) abort (); if (foo(1, 2, 3, 0) != 2) abort (); if (foo(1, 2, 3, 1) != 3) abort (); return 0; } /* { dg-final { scan-tree-dump "q_\[0-9\]* = { i j k }" "alias" } } */