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[PATCH, PING*2] PR rtl-optimization/66790: uninitialized registers handling in REE
- From: Pierre-Marie de Rodat <derodat at adacore dot com>
- To: gcc-patches at gcc dot gnu dot org
- Cc: Richard Biener <richard dot guenther at gmail dot com>, Jeff Law <law at redhat dot com>
- Date: Sat, 8 Aug 2015 10:58:20 +0200
- Subject: [PATCH, PING*2] PR rtl-optimization/66790: uninitialized registers handling in REE
- Authentication-results: sourceware.org; auth=none
- References: <55AACFBD dot 7000200 at adacore dot com> <55B5F2FD dot 5080403 at adacore dot com>
On 07/19/2015 12:14 AM, Pierre-Marie de Rodat wrote:
This patch is an attempt to fix PR rtl-optimization/66790: please see
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66790> for the context.
This adds a new dataflow problem (MIR for Must-Initialized Registers)
and use it in the REE pass to remove oversights, fixing the original
issue.
Ping for the discussion on Bugzilla. Thanks in advance! :-)
--
Pierre-Marie de Rodat