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Re: [PATCH] Optimize __builtin_va_{start,copy,end} on typedef {char,void} *va_list; targets (PR middle-end/20983)

On 11/16/07 06:58, Jakub Jelinek wrote:

	PR middle-end/20983
	* tree-ssa-ccp.c (optimize_stdarg_builtin): New function.
	(execute_fold_all_builtins): Call it for BUILT_IN_VA_START,
	BUILT_IN_VA_COPY and BUILT_IN_VA_END.

	* target.h (struct ggc_target): Add expand_builtin_va_start
	hook.
	* target-def.h (TARGET_EXPAND_BUILTIN_VA_START): Define.
	(TARGET_INITIALIZER): Add it.
	* builtins.c (expand_builtin_va_start): Use
	targetm.expand_builtin_va_start hook instead of
	EXPAND_BUILTIN_VA_START macro.
	* alpha/alpha.c (alpha_va_start): Made static.
	(override_options): Clear targetm.expand_builtin_va_start if
	TARGET_UNICOSMK.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* alpha/unicosmk.h (EXPAND_BUILTIN_VA_START): Remove.
	* alpha/alpha.h (EXPAND_BUILTIN_VA_START): Remove.
	* alpha/alpha-protos.h (alpha_va_start): Remove prototype.
	* xtensa/xtensa.h (EXPAND_BUILTIN_VA_START): Remove.
	* xtensa/xtensa.c (TARGET_EXPAND_BUILTIN_VA_START): Define.
	(xtensa_va_start): Made static.
	* xtensa/xtensa-protos.h (xtensa_va_start): Remove prototype.
	* pa/pa-protos.h (hppa_va_start): Remove prototype.
	* pa/pa.h (EXPAND_BUILTIN_VA_START): Remove.
	* pa/pa.c (hppa_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* frv/frv.c (frv_expand_builtin_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* frv/frv-protos.h (frv_expand_builtin_va_start): Remove prototype.
	* frv/frv.h (EXPAND_BUILTIN_VA_START): Remove.
	* i386/i386.c (override_options): Clear
	targetm.expand_builtin_va_start if -m32 or 64-bit MS ABI.
	(ix86_va_start): Made static.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* i386/i386.h (EXPAND_BUILTIN_VA_START): Remove.
	* i386/i386-protos.h (ix86_va_start, ix86_va_arg): Remove prototypes.
	* iq2000/iq2000-protos.h (iq2000_va_start): Remove prototype.
	* iq2000/iq2000.h (EXPAND_BUILTIN_VA_START): Remove.
	* iq2000/iq2000.c (iq2000_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* rs6000/rs6000-protos.h (rs6000_va_start): Remove prototype.
	* rs6000/rs6000.c (rs6000_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	(rs6000_override_options): Clear targetm.expand_builtin_va_start if
	DEFAULT_ABI != ABI_V4.
	* rs6000/rs6000.h (EXPAND_BUILTIN_VA_START): Remove.
	* spu/spu.c (spu_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* spu/spu.h (EXPAND_BUILTIN_VA_START): Remove.
	* spu/spu-protos.h spu_va_start): Remove prototype.
	* stormy16/stormy16.h (EXPAND_BUILTIN_VA_START): Remove.
	* stormy16/stormy16-protos.h (xstormy16_expand_builtin_va_start):
	Remove prototype.
	* stormy16/stormy16.c (xstormy16_expand_builtin_va_start): Made
	static.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* s390/s390-protos.h (s390_va_start): Remove prototype.
	* s390/s390.c (s390_va_start): Made static.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* s390/s390.h (EXPAND_BUILTIN_VA_START): Remove.
	* mn10300/mn10300.h (EXPAND_BUILTIN_VA_START): Remove.
	* mn10300/mn10300-protos.h (mn10300_va_start): Remove prototype.
	* mn10300/mn10300.c (mn10300_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* arc/arc.c (arc_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* arc/arc.h (EXPAND_BUILTIN_VA_START): Remove.
	* arc/arc-protos.h (arc_va_start): Remove prototype.
	* mt/mt-protos.h (mt_va_start): Remove prototype.
	* sparc/sparc.c (sparc_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* sparc/sparc-protos.h (sparc_va_start): Remove prototype.
	* sparc/sparc.h (EXPAND_BUILTIN_VA_START): Remove.
	* sh/sh.c (sh_va_start): Made static, add prototype.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.
	* sh/sh-protos.h (sh_va_start): Remove prototype.
	* sh/sh.h (EXPAND_BUILTIN_VA_START): Remove.
	* mips/mips-protos.h (mips_va_start): Remove prototype.
	* mips/mips.h (EXPAND_BUILTIN_VA_START): Remove.
	* mips/mips.c (mips_va_start): Made static.
	(TARGET_EXPAND_BUILTIN_VA_START): Define.

Very nice! OK.


Diego.

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