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HEAD
PR rtl-optimization/52139
[pf3gnuchains/gcc-fork.git]
/
gcc
/
testsuite
/
gcc.dg
/
tree-ssa
/
pr2480.c
1
/* { dg-do link } */
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/* { dg-options "-O2" } */
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/* We have enough cascading at -O2 to cover the missed control-dependence
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in SCCVN (which considers the link_error calls to clobber the structs). */
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struct example
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{
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char a;
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int b;
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char c;
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} *ex1;
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extern void link_error(void);
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void
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bar (void)
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{
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ex1->a = 1;
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ex1->b = 2;
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ex1->c = 3;
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if (ex1->a != 1)
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link_error ();
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if (ex1->b != 2)
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link_error ();
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if (ex1->c != 3)
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link_error ();
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}
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void
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foo (struct example *ex2)
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{
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ex2->a = 1;
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ex2->b = 2;
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ex2->c = 3;
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if (ex2->a != 1)
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link_error ();
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if (ex2->b != 2)
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link_error ();
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if (ex2->c != 3)
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link_error ();
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}
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int main (void)
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{
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bar ();
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foo (ex1);
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return 0;
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}