Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/ssa-ccp-21.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 compile } */ /* { dg-options "-O -fdump-tree-ccp1" } */ struct A { struct B { int i; } b; } a; int foo (void) { struct B *p = &a.b; struct A *q = (struct A *) p; return q->b.i; } int bar (void) { struct A *p = &a; struct B *q = (struct B *) p; return q->i; } /* The first access is through struct A, so a.b.i is fine, the second access needs to preserve the original access type struct B. */ /* { dg-final { scan-tree-dump-times "a.b.i" 1 "ccp1" } } */ /* { dg-final { scan-tree-dump-times "MEM\\\[\\\(struct B \\\*\\\)&a\\\].i" 1 "ccp1" } } */