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From: Ramana Radhakrishnan <ramana.radhakrishnan@linaro.org>
To: gcc-patches@gcc.gnu.org
Cc: Jakub Jelinek <jakub@redhat.com>
Subject: [Patch ARM] Fix PR target/50106
Date: Wed, 19 Oct 2011 20:34:00 -0000	[thread overview]
Message-ID: <CACUk7=UZ0srt8xHE+=Th2ybw82JBGiW4nghjwqToG12siqur4g@mail.gmail.com> (raw)

Hi,

This fixes PR target/50106 which was missing handling return register
size from 1-3 for Thumb1. Fixed thusly. Final testing on-going with
arm-linux-gnueabi with thumb1.

Ok to backport to 4.6 branch given it is branch freeze time ? I'll be
able to commit this to the branch latest by tomorrow A.M. UK time.

cheers
Ramana


2011-10-19  Ramana Radhakrishnan  <ramana.radhakrishnan@linaro.org>

        PR target/50106
        * config/arm/arm.c (thumb_unexpanded_epilogue): Handle return
reg size from 1-3.


Index: gcc/config/arm/arm.c
===================================================================
--- gcc/config/arm/arm.c	(revision 180200)
+++ gcc/config/arm/arm.c	(working copy)
@@ -21652,7 +21652,7 @@
   if (extra_pop > 0)
     {
       unsigned long extra_mask = (1 << extra_pop) - 1;
-      live_regs_mask |= extra_mask << (size / UNITS_PER_WORD);
+      live_regs_mask |= extra_mask << ((size + 3) / UNITS_PER_WORD);
     }

   /* The prolog may have pushed some high registers to use as

             reply	other threads:[~2011-10-19 19:27 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-19 20:34 Ramana Radhakrishnan [this message]
2011-10-19 20:36 ` Nathan Froyd
2011-10-20  9:29   ` Ramana Radhakrishnan
2011-10-20  9:33 ` Jakub Jelinek

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