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-rw-r--r--ssa.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ssa.c b/ssa.c
index 849f679..356135b 100644
--- a/ssa.c
+++ b/ssa.c
@@ -264,7 +264,7 @@ getstk(int t, Blk *b, Name **stk)
 	stk[t] = n;
 	if (!n) {
 		/* uh, oh, warn */
-		return CON_Z;
+		return UNDEF;
 	} else
 		return n->r;
 }