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Re: possible gcse failure: not able to eliminate redundant loads

From: Andrew Haley <aph at redhat dot com>
To: Richard Henderson <rth at redhat dot com>
Cc: Toon Moene <toon at moene dot indiv dot nluug dot nl>,"Sanjiv Kumar Gupta, Noida" <sanjivg at noida dot hcltech dot com>,David Edelsohn <dje at watson dot ibm dot com>,Daniel Berlin <dberlin at dberlin dot org>,Dale Johannesen <dalej at apple dot com>, gcc at gcc dot gnu dot org
Date: Mon, 16 Dec 2002 18:49:18 +0000 (GMT)
Subject: Re: possible gcse failure: not able to eliminate redundant loads
References: <E04CF3F88ACBD5119EFE00508BBB2121061C3264@exch-01.noida.hcltech.com><20021213093054.GA29293@redhat.com><3DFA4252.3060309@moene.indiv.nluug.nl><20021216180441.C3953@redhat.com>

Richard Henderson writes:
 > On Fri, Dec 13, 2002 at 09:25:54PM +0100, Toon Moene wrote:
 > > Can we disable this notion of loads-that-might-trap from a frontend ?
 > 
 > I don't know.

I wrote a patch that adds a flag to a MEM so that a front end can mark
it as trapping or not trapping and may_trap_p() can deal with it
accordingly.  This is good for Java too.

I'll clean it up and submit it if there's interest.

Andrew.

References:
- RE: possible gcse failure: not able to eliminate redundant loads
  - From: Sanjiv Kumar Gupta, Noida
- Re: possible gcse failure: not able to eliminate redundant loads
  - From: Richard Henderson
- Re: possible gcse failure: not able to eliminate redundant loads
  - From: Toon Moene
- Re: possible gcse failure: not able to eliminate redundant loads
  - From: Richard Henderson

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