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Diffstat (limited to 'gcc/lra-constraints.cc')
| -rw-r--r-- | gcc/lra-constraints.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/lra-constraints.cc b/gcc/lra-constraints.cc index 48ce7578..1bbf21f 100644 --- a/gcc/lra-constraints.cc +++ b/gcc/lra-constraints.cc @@ -523,6 +523,11 @@ update_equiv (int regno) { rtx x; + /* If REGNO is beyond the length of the equivalence array structure, + then there's nothing to update. */ + if (regno >= ira_reg_equiv_len) + return; + if ((x = ira_reg_equiv[regno].memory) != NULL_RTX) ira_reg_equiv[regno].memory = simplify_replace_fn_rtx (x, NULL_RTX, loc_equivalence_callback, |