42 lines
820 B
C
42 lines
820 B
C
/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-vrp1 -fno-early-inlining" } */
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typedef struct {
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int code;
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} *rtx;
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static inline void *zero ()
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{
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return 0;
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}
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static inline int three ()
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{
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return 3;
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}
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int
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can_combine_p (rtx insn, rtx elt)
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{
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rtx set;
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set = zero ();
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if (insn->code == three ())
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set = insn;
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else
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{
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set = elt;
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if (set == zero ())
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return 0;
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}
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if (set == zero ())
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return 1;
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return 0;
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}
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/* Target with fno-delete-null-pointer-checks should not fold checks */
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/* { dg-final { scan-tree-dump-times "Folding predicate.*to 0" 1 "vrp1" { target { ! keeps_null_pointer_checks } } } } */
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/* { dg-final { scan-tree-dump-times "Folding predicate.*to 0" 0 "vrp1" { target { keeps_null_pointer_checks } } } } */
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/* { dg-final { cleanup-tree-dump "vrp1" } } */
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