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authorkenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4>2003-05-03 14:30:07 +0000
committerkenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4>2003-05-03 14:30:07 +0000
commit794d6bca180626affab6b2a335fdfa861def7454 (patch)
tree5b300418ab27240f850e8f114184f7fdfd40ea6c
parentd5f9786fae594d6d9f449e98620f3009d9a6710d (diff)
downloadppe42-gcc-794d6bca180626affab6b2a335fdfa861def7454.tar.gz
ppe42-gcc-794d6bca180626affab6b2a335fdfa861def7454.zip
* expr.c (expand_expr, case VIEW_CONVERT_EXPR): Don't use
gen_lowpart on non-integer modes. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@66430 138bc75d-0d04-0410-961f-82ee72b054a4
-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 58469126a53..f307619a02c 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 b64319a08a7..7fd347be3b1 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);
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