From: Mikhail Maltsev <maltsevm@gmail.com>
To: gcc-patches <gcc-patches@gnu.org>,
Richard Biener <richard.guenther@gmail.com>
Subject: [PATCH 2/2][GCC] Add one more pattern to RTL if-conversion
Date: Mon, 23 May 2016 14:00:00 -0000 [thread overview]
Message-ID: <57430D0D.5040101@gmail.com> (raw)
In-Reply-To: <57430B42.8070505@gmail.com>
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This patch adds a new if-conversion pattern for the following case:
if (test) x = A; else x = B;
A and B are constants, abs(A - B) == 2^N, A != 0, B != 0
Bootstrapped and regtested on x86_64-linux. OK for trunk?
--
Regards,
Mikhail Maltsev
gcc/testsuite/ChangeLog:
2016-05-23 Mikhail Maltsev <maltsevm@gmail.com>
* gcc.dg/ifcvt-6.c: New test.
gcc/ChangeLog:
2016-05-23 Mikhail Maltsev <maltsevm@gmail.com>
* ifcvt.c (noce_try_store_flag_constants): Add new pattern.
[-- Attachment #2: 0002-Add-ifcvt-pattern.patch --]
[-- Type: application/x-patch, Size: 1943 bytes --]
next prev parent reply other threads:[~2016-05-23 14:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-23 13:53 [PATCH 0/2][GCC] " Mikhail Maltsev
2016-05-23 13:58 ` [PATCH 1/2][GCC] Refactor noce_try_store_flag_constants Mikhail Maltsev
2016-06-02 9:28 ` Bernd Schmidt
2016-05-23 14:00 ` Mikhail Maltsev [this message]
2016-05-23 14:15 ` [PATCH 2/2][GCC] Add one more pattern to RTL if-conversion Kyrill Tkachov
2016-05-24 19:06 ` Mikhail Maltsev
2016-06-02 9:33 ` Bernd Schmidt
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