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PATCH - PPC split slow unaligned load/store into smaller load/stores

From: Fariborz Jahanian <fjahanian at apple dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Fariborz Jahanian <fjahanian at apple dot com>
Date: Wed, 14 Jan 2004 10:46:45 -0800
Subject: PATCH - PPC split slow unaligned load/store into smaller load/stores

rs6000_emit_move() need to know the alignment and SLOW_UNALIGNED_ACCESS should cause load/store to be split into smaller loads and logical ops. rs6000_eimit_mode() only handles MEM-MEM now. It needs to be expanded to MEM-REG and REG-MEM. Patch is bootstrapped and dejagnu and SPEC benchmark tested on ppc-dawrin.

OK for mainline?

- Fariborz <fjahanian@apple.com>

ChangeLog:

2004-01-13 Fariborz Jahanian <fjahanian@apple.com>

        * config/rs6000/rs6000.c (rs6000_emit_move): split slow
        unaligned load/store into smaller loads and stores.

Attachment: patch_memalign.txt
Description: Text document

Follow-Ups:
- Re: PATCH - PPC split slow unaligned load/store into smaller load/stores
  - From: David Edelsohn

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