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authorRichard Kenner <kenner@vlsi1.ultra.nyu.edu>2003-05-03 14:30:07 +0000
committerRichard Kenner <kenner@gcc.gnu.org>2003-05-03 10:30:07 -0400
commit13cf99ece09fb65a20160ae963bae51372bdada3 (patch)
tree5b300418ab27240f850e8f114184f7fdfd40ea6c
parentee9609391b6e1bd4d026b86cf79bced76e1baa5b (diff)
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expr.c (expand_expr, [...]): Don't use gen_lowpart on non-integer modes.
* expr.c (expand_expr, case VIEW_CONVERT_EXPR): Don't use gen_lowpart on non-integer modes. From-SVN: r66430
-rw-r--r--gcc/ChangeLog3
-rw-r--r--gcc/expr.c8
2 files changed, 8 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5846912..f307619 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -19,6 +19,9 @@
2003-05-03 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
+ * expr.c (expand_expr, case VIEW_CONVERT_EXPR): Don't use
+ gen_lowpart on non-integer modes.
+
* stor-layout.c (place_field): When adjusting offset_align, use
desired_align, not DECL_ALIGN.
diff --git a/gcc/expr.c b/gcc/expr.c
index b64319a..7fd347b 100644
--- a/gcc/expr.c
+++ b/gcc/expr.c
@@ -7959,12 +7959,14 @@ expand_expr (exp, target, tmode, modifier)
op0 = expand_expr (TREE_OPERAND (exp, 0), NULL_RTX, mode, modifier);
/* If the input and output modes are both the same, we are done.
- Otherwise, if neither mode is BLKmode and both are within a word, we
- can use gen_lowpart. If neither is true, make sure the operand is
- in memory and convert the MEM to the new mode. */
+ Otherwise, if neither mode is BLKmode and both are integral and within
+ a word, we can use gen_lowpart. If neither is true, make sure the
+ operand is in memory and convert the MEM to the new mode. */
if (TYPE_MODE (type) == GET_MODE (op0))
;
else if (TYPE_MODE (type) != BLKmode && GET_MODE (op0) != BLKmode
+ && GET_MODE_CLASS (GET_MODE (op0)) == MODE_INT
+ && GET_MODE_CLASS (TYPE_MODE (type)) == MODE_INT
&& GET_MODE_SIZE (TYPE_MODE (type)) <= UNITS_PER_WORD
&& GET_MODE_SIZE (GET_MODE (op0)) <= UNITS_PER_WORD)
op0 = gen_lowpart (TYPE_MODE (type), op0);