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view gcc/testsuite/gcc.dg/tree-ssa/tailrecursion-4.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
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line source

/* { dg-do compile } */
/* { dg-options "-O1 -foptimize-sibling-calls -fdump-tree-tailr1-details" } */
int
t(int a)
{
	int r;
	if (a&1)
		r = t(a-1);
	else if (a)
		r = t(a-2);
	else
		return 0;
	if (r)
		r=r;
	return r;
}
/* { dg-final { scan-tree-dump-times "Eliminated tail recursion" 2 "tailr1"} } */