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Re: [PATCH v12] add -fpatchable-function-entry=N,M option
- From: Andreas Schwab <schwab at suse dot de>
- To: Maxim Kuvyrkov <maxim dot kuvyrkov at linaro dot org>
- Cc: Gerald Pfeifer <gerald at pfeifer dot com>, Torsten Duwe <duwe at suse dot de>, "Richard Earnshaw \(lists\)" <Richard dot Earnshaw at arm dot com>, Sandra Loosemore <sandra at codesourcery dot com>, Marek Polacek <polacek at redhat dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, Szabolcs Nagy <szabolcs dot nagy at arm dot com>, nd at arm dot com, Li Bin <huawei dot libin at huawei dot com>, Jiri Kosina <jkosina at suse dot cz>, Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>, Takahiro Akashi <takahiro dot akashi at linaro dot org>, Andrew Wafaa <Andrew dot Wafaa at arm dot com>
- Date: Tue, 01 Aug 2017 15:36:42 +0200
- Subject: Re: [PATCH v12] add -fpatchable-function-entry=N,M option
- Authentication-results: sourceware.org; auth=none
- References: <20170706140311.GA20710@suse.de> <d3e6d7a1-1f1c-c0b5-133a-0ab29eb5034d@arm.com> <20170707193028.GA17752@suse.de> <mvmbmo7uvuu.fsf@suse.de> <20170726142629.GG22969@suse.de> <mvm379juv2y.fsf@suse.de> <F3E4420A-1F0D-48F0-978B-4A6C0B65A4E1@linaro.org> <alpine.LSU.2.21.1708010442150.25964@anthias.pfeifer.com> <mvm8tj3r24a.fsf@suse.de> <B3ACC0F7-B23C-428B-95BF-A5AA853C1208@linaro.org>
On Aug 01 2017, Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org> wrote:
> Do you know a reliable way of checking whether target can issue nops in simple code?
Try inspecting one of the rtl dumps.
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
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