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| author | Georg-Johann Lay <avr@gjlay.de> | 2012-05-31 17:32:42 +0000 |
|---|---|---|
| committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2012-05-31 17:32:42 +0000 |
| commit | 621dfb1e584367d1d62c52e82cf4351a7ae174d2 (patch) | |
| tree | 5bfb672adf0f5a551df02560b1704ef404c01152 /gcc/config/avr/avr.opt | |
| parent | bdd5dc28aa04c3bc6b10fe6bdd01ddbd59e689c7 (diff) | |
| download | gcc-621dfb1e584367d1d62c52e82cf4351a7ae174d2.zip gcc-621dfb1e584367d1d62c52e82cf4351a7ae174d2.tar.gz gcc-621dfb1e584367d1d62c52e82cf4351a7ae174d2.tar.bz2 | |
re PR target/51345 ([avr] Devices with 8-bit SP need their own multilib(s))
PR target/51345
* config/avr/avr.opt (-msp8): Document it.
* doc/invoke.texi (AVR Options): Ditto. And document related
built-in macros.
From-SVN: r188070
Diffstat (limited to 'gcc/config/avr/avr.opt')
| -rw-r--r-- | gcc/config/avr/avr.opt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/config/avr/avr.opt b/gcc/config/avr/avr.opt index d4d6b78..10769e8 100644 --- a/gcc/config/avr/avr.opt +++ b/gcc/config/avr/avr.opt @@ -76,4 +76,5 @@ When accessing RAM, use X as imposed by the hardware, i.e. just use pre-decremen ;; For rationale behind -msp8 see explanation in avr.h. msp8 -Target Report RejectNegative Undocumented Var(avr_sp8) Init(0) +Target Report RejectNegative Var(avr_sp8) Init(0) +The device has no SPH special function register. This option will be overridden by the compiler driver with the correct setting if presence/absence of SPH can be deduced from -mmcu=MCU. |