http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55235
--- Comment #4 from Uros Bizjak <ubizjak at gmail dot com> 2012-11-07 20:17:45
UTC ---
Please note that before your patch, emit_block_move was never called.
Following patch fixes testcase for me:
--cut here--
Index: expr.c
===================================================================
--- expr.c (revision 193296)
+++ expr.c (working copy)
@@ -5246,19 +5246,12 @@ store_expr (tree exp, rtx target, int call_param_p
{
if (GET_MODE (target) == BLKmode)
{
- if (REG_P (temp))
- {
- if (TREE_CODE (exp) == CALL_EXPR)
- copy_blkmode_from_reg (target, temp, TREE_TYPE (exp));
- else
- store_bit_field (target,
- INTVAL (expr_size (exp)) * BITS_PER_UNIT,
- 0, 0, 0, GET_MODE (temp), temp);
- }
+ if (REG_P (temp) && TREE_CODE (exp) == CALL_EXPR)
+ copy_blkmode_from_reg (target, temp, TREE_TYPE (exp));
else
- emit_block_move (target, temp, expr_size (exp),
- (call_param_p
- ? BLOCK_OP_CALL_PARM : BLOCK_OP_NORMAL));
+ store_bit_field (target,
+ INTVAL (expr_size (exp)) * BITS_PER_UNIT,
+ 0, 0, 0, GET_MODE (temp), temp);
}
else
convert_move (target, temp, TYPE_UNSIGNED (TREE_TYPE (exp)));
--cut here--
I am running bootstrap and regression test.
