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| author | Craig Burley <craig@jcb-sc.com> | 1999-04-17 11:43:57 +0000 |
|---|---|---|
| committer | Craig Burley <burley@gcc.gnu.org> | 1999-04-17 07:43:57 -0400 |
| commit | 0f4668ef1ac72bd6e64d97cc72e8d182755ce7ed (patch) | |
| tree | 5d90046380bbc26854ca34229a3996c1aea267c1 /gcc/tree.c | |
| parent | 75e8000e18ff3f66168cb52d0d079623ee5bceae (diff) | |
| download | gcc-0f4668ef1ac72bd6e64d97cc72e8d182755ce7ed.zip gcc-0f4668ef1ac72bd6e64d97cc72e8d182755ce7ed.tar.gz gcc-0f4668ef1ac72bd6e64d97cc72e8d182755ce7ed.tar.bz2 | |
Check for circularity only if ENABLE_CHECKING is defined
From-SVN: r26517
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -1956,9 +1956,11 @@ chainon (op1, op2) for (t1 = op1; TREE_CHAIN (t1); t1 = TREE_CHAIN (t1)) ; TREE_CHAIN (t1) = op2; +#ifdef ENABLE_CHECKING for (t2 = op2; t2; t2 = TREE_CHAIN (t2)) if (t2 == t1) abort (); /* Circularity created. */ +#endif return op1; } else return op2; |