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| author | Georg-Johann Lay <avr@gjlay.de> | 2012-03-28 08:31:26 +0000 |
|---|---|---|
| committer | Georg-Johann Lay <gjl@gcc.gnu.org> | 2012-03-28 08:31:26 +0000 |
| commit | 7fd6378ef41d6b6dd820036b5a100d99368060aa (patch) | |
| tree | a536913b5a523823c9a468572ea1feb321cb1092 /gcc/config/avr/avr.opt | |
| parent | be47bf24cbd5e88ebbde79ff7c5352e51c613f47 (diff) | |
| download | gcc-7fd6378ef41d6b6dd820036b5a100d99368060aa.zip gcc-7fd6378ef41d6b6dd820036b5a100d99368060aa.tar.gz gcc-7fd6378ef41d6b6dd820036b5a100d99368060aa.tar.bz2 | |
re PR target/52737 ([avr]: -mtiny-stack shall not influence multilib selection)
PR target/52737
* contrib/gcc_update (files_and_dependencies):
Remove gcc/config/avr/t-multilib from touch data.
gcc/
PR target/52737
* config.gcc (tm_file): Remove avr/multilib.h.
* doc/invoke.texi (AVR Options): Adjust
documentation of -mtiny-stack.
* config/avr/genmultilib.awk: Remove code to generate multilib.h.
(BEGIN): Use -msp8 as multilib option instead of -mtiny-stack.
* config/avr/t-avr: Remove generation of multilib.h.
* config/avr/t-multilib: Regenerate.
* config/avr/multilib.h: Remove.
* config/avr/avr.opt (-msp8): New option.
(avr_sp8): New variable.
* config/avr/driver-avr.c (avr_device_to_sp8): New function.
* config/avr/avr.h (AVR_HAVE_SPH): New define.
(AVR_HAVE_8BIT_SP): Also set by avr_sp8 i.e. -msp8.
(avr_device_to_sp8): New prototype.
(EXTRA_SPEC_FUNCTIONS): Add { "device_to_sp8", avr_device_to_sp8 }
(DRIVER_SELF_SPECS): New define.
* config/avr/avr-c.c (avr_cpu_cpp_builtins): New built-in defines:
__AVR_SP8__, __AVR_HAVE_SPH__.
* config/avr/avr.c (output_movhi): Use AVR_HAVE_SPH instead of
AVR_HAVE_8BIT_SP to decide if SP_H is present.
(avr_file_start): Ditto.
libgcc/
PR target/52737
* config/avr/lib1funcs.S: Use __AVR_HAVE_SPH__ for SP_H checks
instead of __AVR_HAVE_8BIT_SP__.
From-SVN: r185907
Diffstat (limited to 'gcc/config/avr/avr.opt')
| -rw-r--r-- | gcc/config/avr/avr.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/config/avr/avr.opt b/gcc/config/avr/avr.opt index d6e73ee..d4d6b78 100644 --- a/gcc/config/avr/avr.opt +++ b/gcc/config/avr/avr.opt @@ -73,3 +73,7 @@ Accumulate outgoing function arguments and acquire/release the needed stack spac mstrict-X Target Report Var(avr_strict_X) Init(0) When accessing RAM, use X as imposed by the hardware, i.e. just use pre-decrement, post-increment and indirect addressing with the X register. Without this option, the compiler may assume that there is an addressing mode X+const similar to Y+const and Z+const and emit instructions to emulate such an addressing mode for X. + +;; For rationale behind -msp8 see explanation in avr.h. +msp8 +Target Report RejectNegative Undocumented Var(avr_sp8) Init(0) |