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Re: [tree-ssa] RFC: Never gimplify ASM_EXPRs

From: Andrew Haley <aph at redhat dot com>
To: Jason Merrill <jason at redhat dot com>
Cc: Diego Novillo <dnovillo at redhat dot com>, "gcc at gcc dot gnu dot org" <gcc at gcc dot gnu dot org>
Date: Thu, 5 Jun 2003 16:30:49 +0100
Subject: Re: [tree-ssa] RFC: Never gimplify ASM_EXPRs
References: <1054822579.19594.18.camel@frodo.toronto.redhat.com><wvlllwgo8wr.fsf@prospero.boston.redhat.com>

Jason Merrill writes:
 > Andrew and I discussed this issue at the summit, and agreed (I thought)
 > that the asm should either make the operand an input/output operand or pass
 > in X and do the dereference in the explicit assembly.

Fair enough, but the expansion is copying the mem into a local.  We
agreed that this was unnecessary and should be nuked if only for
efficiency's sake, did we not?

Andrew.

References:
- [tree-ssa] RFC: Never gimplify ASM_EXPRs
  - From: Diego Novillo
- Re: [tree-ssa] RFC: Never gimplify ASM_EXPRs
  - From: Jason Merrill

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