From: Richard Henderson <rth@twiddle.net>
To: "Richard Earnshaw (lists)" <Richard.Earnshaw@arm.com>,
Sam Tebbs <sam.tebbs@arm.com>, Sudakshina Das <sudi.das@arm.com>,
"gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org>
Cc: nd <nd@arm.com>, marcus.shawcroft@arm.com, james.greenhalgh@arm.com
Subject: Re: [GCC][PATCH][Aarch64] Exploiting BFXIL when OR-ing two AND-operations with appropriate bitmasks
Date: Tue, 17 Jul 2018 15:46:00 -0000 [thread overview]
Message-ID: <62d844b1-7fef-0244-363e-2e02fee6880b@twiddle.net> (raw)
In-Reply-To: <e9769ff8-c308-1b68-32b8-a2879258253d@arm.com>
On 07/17/2018 06:33 AM, Richard Earnshaw (lists) wrote:
>> (define_predicate "pow2m1_operand"
>> (and (match_code "const_int")
>> (match_test "exact_pow2 (INTVAL(op) + 1) > 0")))
> ITYM exact_log2()
Yes of course. Thanks,
r~
next prev parent reply other threads:[~2018-07-17 15:46 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-13 16:09 Sam Tebbs
2018-07-16 10:55 ` Sudakshina Das
2018-07-16 17:11 ` Sam Tebbs
2018-07-17 1:34 ` Richard Henderson
2018-07-17 13:33 ` Richard Earnshaw (lists)
2018-07-17 15:46 ` Richard Henderson [this message]
2018-07-19 13:03 ` Sam Tebbs
2018-07-20 9:31 ` Sam Tebbs
2018-07-20 9:33 ` Sam Tebbs
2018-07-23 11:38 ` Renlin Li
2018-07-23 13:15 ` Sam Tebbs
2018-07-24 16:24 ` Sam Tebbs
2018-07-30 11:31 ` Sam Tebbs
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