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-rw-r--r--gcc/calls.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/calls.c b/gcc/calls.c
index 4abd2c0e6ed..536f9282bc3 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -2058,6 +2058,13 @@ expand_call (exp, target, ignore)
preserve_temp_slots (target);
}
+ /* This code assumes valreg is at least a full word. If it isn't,
+ copy it into a new pseudo which is a full word. */
+ if (GET_MODE (valreg) != BLKmode
+ && GET_MODE_SIZE (GET_MODE (valreg)) < UNITS_PER_WORD)
+ valreg = convert_to_mode (SImode, valreg,
+ TREE_UNSIGNED (TREE_TYPE (exp)));
+
/* Structures whose size is not a multiple of a word are aligned
to the least significant byte (to the right). On a BYTES_BIG_ENDIAN
machine, this means we must skip the empty high order bytes when