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Diffstat (limited to 'gcc/tree-vrp.c')
| -rw-r--r-- | gcc/tree-vrp.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/tree-vrp.c b/gcc/tree-vrp.c index 594ee9a..b79dfb2 100644 --- a/gcc/tree-vrp.c +++ b/gcc/tree-vrp.c @@ -4492,7 +4492,8 @@ vrp_prop::check_mem_ref (location_t location, tree ref, The loop computes the range of the final offset for expressions such as (A + i0 + ... + iN)[CSTOFF] where i0 through iN are SSA_NAMEs in some range. */ - while (TREE_CODE (arg) == SSA_NAME) + const unsigned limit = PARAM_VALUE (PARAM_SSA_NAME_DEF_CHAIN_LIMIT); + for (unsigned n = 0; TREE_CODE (arg) == SSA_NAME && n < limit; ++n) { gimple *def = SSA_NAME_DEF_STMT (arg); if (!is_gimple_assign (def)) |