This is the mail archive of the gcc@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: live insns deleted by delete_trivially_dead_insns()

From: Paolo Bonzini <paolo dot bonzini at lu dot unisi dot ch>
To: Steven Bosscher <stevenb dot gcc at gmail dot com>
Cc: Rask Ingemann Lambertsen <rask at sygehus dot dk>, Eric Botcazou <ebotcazou at libertysurf dot fr>, gcc at gcc dot gnu dot org
Date: Tue, 08 May 2007 09:05:02 +0200
Subject: Re: live insns deleted by delete_trivially_dead_insns()
References: <20070507133916.GA3633@sygehus.dk> <200705072135.38698.ebotcazou@libertysurf.fr> <463F8825.80706@lu.unisi.ch> <20070507210208.GB3633@sygehus.dk> <46401830.4090106@lu.unisi.ch> <571f6b510705080001r14367ccaqb04610d8a73bbef3@mail.gmail.com>
Reply-to: bonzini at gnu dot org

But without libcall notes, we just see a call_insn and a set to a hard
register, and we have no way  to tell that the call_insn is dead and
can safely be removed.

Even if CONST_OR_PURE_CALL_P is set to 1??? :-(

Paolo

Follow-Ups:
- Re: live insns deleted by delete_trivially_dead_insns()
  - From: Steven Bosscher

References:
- live insns deleted by delete_trivially_dead_insns()
  - From: Rask Ingemann Lambertsen
- Re: live insns deleted by delete_trivially_dead_insns()
  - From: Eric Botcazou
- Re: live insns deleted by delete_trivially_dead_insns()
  - From: Paolo Bonzini
- Re: live insns deleted by delete_trivially_dead_insns()
  - From: Rask Ingemann Lambertsen
- Re: live insns deleted by delete_trivially_dead_insns()
  - From: Paolo Bonzini
- Re: live insns deleted by delete_trivially_dead_insns()
  - From: Steven Bosscher

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]