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[patch] fix red zone altivec saving

From: Eric Christopher <echristo at apple dot com>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Cc: Geoff Keating <geoffk at apple dot com>
Date: Sun, 25 Mar 2007 18:50:50 -0700
Subject: [patch] fix red zone altivec saving

So, it turns out that the red zone on ppc doesn't include the altivec registers. OK, no problem on those targets (ABI_V4) that happen to push the stack early enough. Unfortunately darwin isn't one of them so a little rearrangement is necessary. However, this doesn't really affect V4 much in that we just save the registers a little later in the sequence after we've pushed.

Tested by bootstrap and regression test on ppc-darwin. OK?

-eric

2007-03-25 Eric Christopher <echristo@apple.com>

	* config/rs6000/rs6000.c (rs6000_emit_prologue): Move altivec register
	saving after stack push.

Attachment: altivec.diff.txt
Description: Text document

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