r175917 - in /trunk/gcc: ChangeLog combine.c cs...

[bernds@gcc.gnu.org]

Author: bernds
Date: Wed Jul  6 14:21:03 2011
New Revision: 175917

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=175917
Log:
	* cse.c (find_comparison_args): Use val_mode_signbit_set_p.
	* simplify-rtx.c (mode_signbit_p): Use GET_MODE_PRECISION.
	(val_mode_signbit_p, val_mode_signbit_set_p): New functions.
	(simplify_const_unary_operation, simplify_binary_operation_1,
	simplify_const_binary_operation,
	simplify_const_relational_operation): Use them.  Use
	GET_MODE_MASK for masking and sign-extensions.
	* combine.c (set_nonzero_bits_and_sign_copies, simplify_set,
	combine_simplify_rtx, force_to_mode, reg_nonzero_bits_for_combine,
	simplify_shift_const_1, simplify_comparison): Likewise.
	* expr.c (convert_modes): Likewise.
	* rtlanal.c (nonzero_bits1, canonicalize_condition): Likewise.
	* expmed.c (emit_cstore, emit_store_flag_1, emit_store_flag):
	Likewise.
	* rtl.h (val_mode_signbit_p, val_mode_signbit_set_p): Declare.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/combine.c
    trunk/gcc/cse.c
    trunk/gcc/expmed.c
    trunk/gcc/expr.c
    trunk/gcc/rtl.h
    trunk/gcc/rtlanal.c
    trunk/gcc/simplify-rtx.c