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-rw-r--r--gcc/tree-streamer-in.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/tree-streamer-in.c b/gcc/tree-streamer-in.c
index bead119..97ffc1e 100644
--- a/gcc/tree-streamer-in.c
+++ b/gcc/tree-streamer-in.c
@@ -168,6 +168,9 @@ unpack_ts_real_cst_value_fields (struct bitpack_d *bp, tree expr)
REAL_VALUE_TYPE r;
REAL_VALUE_TYPE *rp;
+ /* Clear all bits of the real value type so that we can later do
+ bitwise comparisons to see if two values are the same. */
+ memset (&r, 0, sizeof r);
r.cl = (unsigned) bp_unpack_value (bp, 2);
r.decimal = (unsigned) bp_unpack_value (bp, 1);
r.sign = (unsigned) bp_unpack_value (bp, 1);