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rtlanal.c (subreg_offset_representable_p): Fix call of subreg_lowpart.

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* rtlanal.c (subreg_offset_representable_p):  Fix call of
	subreg_lowpart.

From-SVN: r65817
This commit is contained in:
Jan Hubicka 2003-04-19 14:57:36 +02:00 committed by Jan Hubicka
parent bced6edfc6
commit 070154442e
2 changed files with 13 additions and 5 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Sat Apr 19 14:56:17 CEST 2003 Jan Hubicka <jh@suse.cz>
* rtlanal.c (subreg_offset_representable_p): Fix call of
subreg_lowpart.
2003-04-19 Neil Booth <neil@daikokuya.co.uk>
* cpphash.h (struct cpp_reader): New member warned_dollar.

13
gcc/rtlanal.c
View File

@ -3432,8 +3432,10 @@ subreg_offset_representable_p (xregno, xmode, offset, ymode)
redesigned. */
if (GET_MODE_SIZE (xmode) % GET_MODE_SIZE (ymode)
|| GET_MODE_SIZE (ymode) % nregs_ymode
|| mode_for_size (GET_MODE_SIZE (ymode) / nregs_ymode,
MODE_INT, 0) == VOIDmode
|| (GET_MODE_BITSIZE (mode_for_size (GET_MODE_BITSIZE (xmode)
/ nregs_xmode,
MODE_INT, 0))
!= GET_MODE_BITSIZE (xmode) / nregs_xmode)
|| nregs_xmode % nregs_ymode)
abort ();
#endif
@ -3441,9 +3443,10 @@ subreg_offset_representable_p (xregno, xmode, offset, ymode)
/* The XMODE value can be seen as an vector of NREGS_XMODE
values. The subreg must represent an lowpart of given field.
Compute what field it is. */
offset -= subreg_lowpart_offset (mode_for_size (GET_MODE_SIZE (ymode)
/ nregs_ymode,
MODE_INT, 0), xmode);
offset -= subreg_lowpart_offset (ymode,
mode_for_size (GET_MODE_BITSIZE (xmode)
/ nregs_xmode,
MODE_INT, 0));
/* size of ymode must not be greater than the size of xmode. */
mode_multiple = GET_MODE_SIZE (xmode) / GET_MODE_SIZE (ymode);