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-rw-r--r--gcc/web.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/gcc/web.c b/gcc/web.c
index 7f667db2cc5..df4c84fd774 100644
--- a/gcc/web.c
+++ b/gcc/web.c
@@ -133,9 +133,10 @@ union_match_dups (rtx insn, struct web_entry *def_entry,
entry = type == OP_IN ? use_entry : def_entry;
for (; *ref; ref++)
{
- if (DF_REF_LOC (*ref) == recog_data.operand_loc[op])
+ rtx *l = DF_REF_LOC (*ref);
+ if (l == recog_data.operand_loc[op])
break;
- if (DF_REF_REAL_LOC (*ref) == recog_data.operand_loc[op])
+ if (l && DF_REF_REAL_LOC (*ref) == recog_data.operand_loc[op])
break;
}
@@ -143,9 +144,10 @@ union_match_dups (rtx insn, struct web_entry *def_entry,
{
for (ref = use_link, entry = use_entry; *ref; ref++)
{
- if (DF_REF_LOC (*ref) == recog_data.operand_loc[op])
+ rtx *l = DF_REF_LOC (*ref);
+ if (l == recog_data.operand_loc[op])
break;
- if (DF_REF_REAL_LOC (*ref) == recog_data.operand_loc[op])
+ if (l && DF_REF_REAL_LOC (*ref) == recog_data.operand_loc[op])
break;
}
}