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expmed.c (store_fixed_bit_field): Always use convert_to_mode in order to convert between modes.

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* expmed.c (store_fixed_bit_field): Always use convert_to_mode in
	order to convert between modes.
	(extract_bit_field_1): Test TRULY_NOOP_TRUNCATION on the right mode.

From-SVN: r140730
This commit is contained in:
Eric Botcazou 2008-09-28 09:17:30 +00:00 committed by Eric Botcazou
parent 57cb79efa4
commit 86cfb27a7d
2 changed files with 8 additions and 8 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2008-09-28 Eric Botcazou <ebotcazou@adacore.com>
* expmed.c (store_fixed_bit_field): Always use convert_to_mode in
order to convert between modes.
(extract_bit_field_1): Test TRULY_NOOP_TRUNCATION on the right mode.
2008-09-27 Kaz Kojima <kkojima@gcc.gnu.org>
* config/sh/sh.c (sh_gimplify_va_arg_expr): Use VIEW_CONVERT_EXPR

10
gcc/expmed.c
View File

@ -949,13 +949,7 @@ store_fixed_bit_field (rtx op0, unsigned HOST_WIDE_INT offset,
&& bitpos + bitsize != GET_MODE_BITSIZE (mode));
if (GET_MODE (value) != mode)
{
if ((REG_P (value) || GET_CODE (value) == SUBREG)
&& GET_MODE_SIZE (mode) < GET_MODE_SIZE (GET_MODE (value)))
value = gen_lowpart (mode, value);
else
value = convert_to_mode (mode, value, 1);
}
value = convert_to_mode (mode, value, 1);
if (must_and)
value = expand_binop (mode, and_optab, value,
@ -1348,7 +1342,7 @@ extract_bit_field_1 (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
? bitpos + bitsize == BITS_PER_WORD
: bitpos == 0)))
&& ((!MEM_P (op0)
&& TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode),
&& TRULY_NOOP_TRUNCATION (GET_MODE_BITSIZE (mode1),
GET_MODE_BITSIZE (GET_MODE (op0)))
&& GET_MODE_SIZE (mode1) != 0
&& byte_offset % GET_MODE_SIZE (mode1) == 0)