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re PR middle-end/19330 (FAIL: gcc.c-torture/execute/20010605-2.c execution, -O1) 

PR middle-end/19330
	* expmed.c (extract_bit_field): Use adjust_address instead of
	gen_lowpart when op0 is a MEM.

From-SVN: r94198
This commit is contained in:
John David Anglin 2005-01-25 02:05:39 +00:00 committed by John David Anglin
parent 83c8f106f9
commit a6d2976a97
2 changed files with 17 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-01-24 John David Anglin <dave.anglin@nrc-cnrc.gc.ca>
PR middle-end/19330
* expmed.c (extract_bit_field): Use adjust_address instead of
gen_lowpart when op0 is a MEM.
2005-01-24 Steven Bosscher <stevenb@suse.de>
* cfgexpand.c (expand_gimple_tailcall): Fix typo.

16
gcc/expmed.c
View File

@ -1158,12 +1158,18 @@ extract_bit_field (rtx str_rtx, unsigned HOST_WIDE_INT bitsize,
enum machine_mode imode = int_mode_for_mode (GET_MODE (op0));
if (imode != GET_MODE (op0))
{
op0 = gen_lowpart (imode, op0);
if (MEM_P (op0))
op0 = adjust_address (op0, imode, 0);
else
{
gcc_assert (imode != BLKmode);
op0 = gen_lowpart (imode, op0);
/* If we got a SUBREG, force it into a register since we aren't going
to be able to do another SUBREG on it. */
if (GET_CODE (op0) == SUBREG)
op0 = force_reg (imode, op0);
/* If we got a SUBREG, force it into a register since we
aren't going to be able to do another SUBREG on it. */
if (GET_CODE (op0) == SUBREG)
op0 = force_reg (imode, op0);
}
}
}