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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.

From-SVN: r219385
This commit is contained in:
Sebastian Huber 2015-01-09 13:50:08 +00:00 committed by Sebastian Huber
parent 02f6062b4c
commit 3bfc2fa3f4
2 changed files with 9 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2015-01-09 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config/rs6000/t-rtems: Add -mno-spe to soft-float multilib for
MPC8540.
2015-01-09 Sebastian Huber <sebastian.huber@embedded-brains.de>
* config/rs6000/t-rtems: Use MULTILIB_REQUIRED instead of

5
gcc/config/rs6000/t-rtems
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@ -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