From: Bernd Schmidt <bernds@codesourcery.com>
To: Richard Henderson <rth@redhat.com>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [11/11] Fix get_mode_bounds
Date: Wed, 06 Jul 2011 23:16:00 -0000 [thread overview]
Message-ID: <4E14EA0C.8010405@codesourcery.com> (raw)
In-Reply-To: <4E14AB4C.4050703@redhat.com>
On 07/06/11 20:37, Richard Henderson wrote:
> On 07/01/2011 10:42 AM, Bernd Schmidt wrote:
>> get_mode_bounds should also use GET_MODE_PRECISION, but this exposes a
>> problem on ia64 - BImode needs to be handled specially here to work
>> around another preexisting special case in gen_int_mode.
>
> Would it be better to remove the trunc_int_for_mode special case?
> It appears that I added that for ia64 and it's unchanged since...
That might require target specific changes if there are assumptions that
a BImode value is either 0 or 1, not 0 or -1. For now I'd prefer to
minimize the impact.
Bernd
next prev parent reply other threads:[~2011-07-06 23:05 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-01 17:26 [0/11] GET_MODE_PRECISION vs GET_MODE_BITSIZE Bernd Schmidt
2011-07-01 17:27 ` [1/11] Use targetm.shift_truncation_mask more consistently Bernd Schmidt
2011-07-04 15:29 ` Richard Henderson
2011-07-06 18:13 ` Richard Sandiford
2011-07-07 0:03 ` Bernd Schmidt
2011-07-07 8:07 ` Richard Sandiford
2011-07-01 17:30 ` [3/11] Remove some dead code Bernd Schmidt
2011-07-05 19:12 ` Richard Henderson
2011-07-01 17:30 ` [2/11] Neater tests for signbits Bernd Schmidt
2011-07-05 19:10 ` Richard Henderson
2011-07-05 21:35 ` Bernd Schmidt
2011-07-01 17:32 ` [4/11] Use precisions for TRULY_NOOP_TRUNCATION Bernd Schmidt
2011-07-05 19:16 ` Richard Henderson
2011-07-01 17:33 ` [5/11] Neater tests for paradoxical subregs Bernd Schmidt
2011-07-05 19:19 ` Richard Henderson
2011-07-01 17:34 ` [6/11] Tests for HOST_WIDE_INT representability Bernd Schmidt
2011-07-05 19:19 ` Richard Henderson
2011-07-01 17:36 ` [7/11] rtl optimizer changes Bernd Schmidt
2011-07-06 18:25 ` Richard Henderson
2011-07-01 17:37 ` [8/11] Expander changes Bernd Schmidt
2011-07-06 18:26 ` Richard Henderson
2011-07-01 17:38 ` [9/11] Fix units mismatch in comparison Bernd Schmidt
2011-07-06 18:27 ` Richard Henderson
2011-07-01 17:41 ` [10/11] Expander fixes for 40-bit integers Bernd Schmidt
2011-07-06 18:37 ` Richard Henderson
2011-07-01 17:42 ` [11/11] Fix get_mode_bounds Bernd Schmidt
2011-07-06 18:38 ` Richard Henderson
2011-07-06 23:16 ` Bernd Schmidt [this message]
2011-07-06 23:39 ` Richard Henderson
2011-07-11 10:38 ` Bernd Schmidt
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