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[Patch, microblaze]: Fix ICE with mhard-float

From: David Holsgrove <david dot holsgrove at xilinx dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Michael Eager <eager at eagerm dot com>, Edgar Iglesias <edgari at xilinx dot com>, John Williams <jwilliams at xilinx dot com>, Vinod Kathail <vinodk at xilinx dot com>, Vidhumouli Hunsigida <vidhum at xilinx dot com>, Nagaraju Mekala <nmekala at xilinx dot com>, Tom Shui <tshui at xilinx dot com>
Date: Mon, 15 Jul 2013 14:53:25 +1000
Subject: [Patch, microblaze]: Fix ICE with mhard-float

Add SImode to cstoresf4's comparison operator, prevents ICE during combine
rtl pass with error message;

internal compiler error: in simplify_subreg, at simplify-rtx.c:5725

Use ordered_comparison_operator predicate to limit operators to
those fcmp can handle, and letting compiler reorder insns to
accommodate unordered as necessary.

Changelog entry;

2013-07-15  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/config/microblaze/microblaze.md: Fix cstoresf4 and cbranchsf4

Can this be backported to gcc-4_8-branch also?

thanks,
David

Attachment: 0003-Patch-microblaze-cstoresf4-add-mode-and-ordered_comp.patch
Description: Binary data

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