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From c2c78a7d98b9349ea96e860e094e4a97ba0b5842 Mon Sep 17 00:00:00 2001
From: sh <sh@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri, 9 Jan 2015 14:18:35 +0000
Subject: [PATCH 2/3] RTEMS: Fix MPC8540 multilibs for PowerPC
GCC generates SPE instructions even if -msoft-float is specified.
Explicitly add -mno-spe to prevent generation of SPE instructions. This
multilib variant must not lead to a usage of the SPE.
gcc/ChangeLog
* config/rs6000/t-rtems: Add -mno-spe to soft-float multilib for
MPC8540.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_9-branch@219390 138bc75d-0d04-0410-961f-82ee72b054a4
---
gcc/config/rs6000/t-rtems | 5 ++++-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/gcc/config/rs6000/t-rtems b/gcc/config/rs6000/t-rtems
index 3ebcfaa..e935947 100644
--- a/gcc/config/rs6000/t-rtems
+++ b/gcc/config/rs6000/t-rtems
@@ -30,6 +30,9 @@ MULTILIB_DIRNAMES += m403 m505 m603e m604 m860 m7400 m8540
MULTILIB_OPTIONS += msoft-float/mfloat-gprs=double
MULTILIB_DIRNAMES += nof gprsdouble
+MULTILIB_OPTIONS += mno-spe
+MULTILIB_DIRNAMES += nospe
+
MULTILIB_MATCHES += ${MULTILIB_MATCHES_ENDIAN}
MULTILIB_MATCHES += ${MULTILIB_MATCHES_SYSV}
# Map 405 to 403
@@ -66,6 +69,6 @@ MULTILIB_REQUIRED += mcpu=604/msoft-float
MULTILIB_REQUIRED += mcpu=7400
MULTILIB_REQUIRED += mcpu=7400/msoft-float
MULTILIB_REQUIRED += mcpu=8540
-MULTILIB_REQUIRED += mcpu=8540/msoft-float
+MULTILIB_REQUIRED += mcpu=8540/msoft-float/mno-spe
MULTILIB_REQUIRED += mcpu=8540/mfloat-gprs=double
MULTILIB_REQUIRED += mcpu=860
--
1.8.4.5
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