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Date: Mon, 07 Feb 2011 14:09:40 +0800
From: Chung-Lin Tang <cltang@codesourcery.com>
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To: gcc-patches <gcc-patches@gcc.gnu.org>
CC: Richard Earnshaw <rearnsha@arm.com>, Revital1 Eres <ERES@il.ibm.com>
Subject: [patch, ARM] Fix minipool ICE
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Hi,
the *arm_zero_extendhisi2[_v6] patterns currently do not have the
constant pool range attributes specified, causing a minipool ICE case.
This patch adds the needed pool_range/neg_pool_range settings.

Reported originally from https://bugs.launchpad.net/bugs/711819 , also
happens to occur when building ffmpeg svn trunk.

Ok for trunk?

Thanks,
Chung-Lin

2011-02-07  Chung-Lin Tang  <cltang@codesourcery.com>

        * config/arm/arm.md (*arm_zero_extendhisi2): Set pool_range,
        neg_pool_range attributes for ldrh alternative.
        (*arm_zero_extendhisi2_v6): Same.

Index: config/arm/arm.md
===================================================================
--- config/arm/arm.md	(revision 169875)
+++ config/arm/arm.md	(working copy)
@@ -4202,7 +4202,9 @@
    #
    ldr%(h%)\\t%0, %1"
   [(set_attr "type" "alu_shift,load_byte")
-   (set_attr "predicable" "yes")]
+   (set_attr "predicable" "yes")
+   (set_attr "pool_range" "*,256")
+   (set_attr "neg_pool_range" "*,244")]
 )
 
 (define_insn "*arm_zero_extendhisi2_v6"
@@ -4213,7 +4215,9 @@
    uxth%?\\t%0, %1
    ldr%(h%)\\t%0, %1"
   [(set_attr "type" "alu_shift,load_byte")
-   (set_attr "predicable" "yes")]
+   (set_attr "predicable" "yes")
+   (set_attr "pool_range" "*,256")
+   (set_attr "neg_pool_range" "*,244")]
 )
 
 (define_insn "*arm_zero_extendhisi2addsi"