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-rw-r--r--gcc/genpeep.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/genpeep.c b/gcc/genpeep.c
index 4b9c5379be3..20239544bdb 100644
--- a/gcc/genpeep.c
+++ b/gcc/genpeep.c
@@ -306,6 +306,9 @@ match_rtx (rtx x, struct link *path, int fail_label)
printf (" if (strcmp (XSTR (x, %d), \"%s\")) goto L%d;\n",
i, XSTR (x, i), fail_label);
}
+ else if (fmt[i] == 'p')
+ /* Not going to support subregs for legacy define_peeholes. */
+ gcc_unreachable ();
}
}