Ping: [Patch][AVR]: Initial builtins support

[Denis Chertykov]

2011/4/11 Georg-Johann Lay <avr@gjlay.de>:
> Georg-Johann Lay schrieb:
>> This patch adds builtin support for some RTL builtins to avr backend.
>> One builtin implements loop for delay of specific number of ticks
>> (under the assumption IRQs are off), others simply map to machine
>> instructions like SEI, CLI, NOP, SLEEP, WDR, FMUL, FMAULS, FMULSU.
>>
>> In addition, builtin macros are introduced so that use can easily
>> query if or if not a specific builtin is available. This might be
>> useful as builtin support evolves, because #ifdef is easier then to
>> twiddle out which version brings what builtin.
>>
>> 2011-04-06  Georg-Johann Lay  <avr@gjlay.de>
>>
>>       * config/avr/avr.c: ("insn-codes.h", "optabs.h", "langhooks.h"):
>>       New Includes
>>       (avr_init_builtins, avr_expand_builtin,
>>       avr_expand_delay_cycles, avr_expand_unop_builtin,
>>       avr_expand_binop_builtin ): New functions.
>>       (avr_builtin_id): New enum
>>       (struct avr_builtin_description): New struct
>>       (bdesc_1arg, bdesc_2arg): New arrays describing some RTL builtins.
>>       (TARGET_INIT_BUILTINS, TARGET_EXPAND_BUILTIN): Define.
>>       * config/avr/avr.md (UNSPEC_FMUL, UNSPEC_FMULS, UNSPEC_FMULSU,
>>       UNSPECV_ENABLE_IRQS, UNSPECV_NOP, UNSPECV_SLEEP, UNSPECV_WDR,
>>       UNSPECV_DELAY_CYCLES): new enumeration values
>>       (UNSPEC_SEI, UNSPEC_CLI): Remove enumeration values
>>       ("enable_interrupt"): Use UNSPECV_ENABLE_IRQS
>>       ("disable_interrupt"): Use UNSPECV_ENABLE_IRQS
>>       ("*rotlqi3_4"): rename insn to "rotlqi3_4"
>>       ("delay_cycles_1", "delay_cycles_2", "delay_cycles_3",
>>       "delay_cycles_4", "nopv", "sleep", "wdr", "fmul", "fmuls",
>>       "fmulsu"): New insns
>>       * config/avr/avr-c.c: fix line endings
>>       (avr_cpu_cpp_builtins): New builtin defines: __BUILTIN_AVR_NOP,
>>       __BUILTIN_AVR_SEI, __BUILTIN_AVR_CLI, __BUILTIN_AVR_WDR,
>>       __BUILTIN_AVR_SLEEP, __BUILTIN_AVR_SWAP,
>>       __BUILTIN_AVR_DELAY_CYCLES, __BUILTIN_AVR_FMUL,
>>       __BUILTIN_AVR_FMULS, __BUILTIN_AVR_FMULSU.
>>

Approved.

Denis.