invoke.texi (-mslow-flash-data): Document new option.

invoke.texi (-mslow-flash-data): Document new option.

gcc/ChangeLog
2013-11-25  Terry Guo  <terry.guo@arm.com>

	* doc/invoke.texi (-mslow-flash-data): Document new option.
	* config/arm/arm.opt (mslow-flash-data): New option.
	* config/arm/arm-protos.h (arm_max_const_double_inline_cost): Declare
	it.
	* config/arm/arm.h (TARGET_USE_MOVT): Always true when literal pools
	are disabled.
	(arm_disable_literal_pool): Declare it.
	* config/arm/arm.c (arm_disable_literal_pool): New variable.
	(arm_option_override): Handle new option.
	(thumb2_legitimate_address_p): Don't allow symbol references when
	literal pools are disabled.
	(arm_max_const_double_inline_cost): New function.
	* config/arm/arm.md (types.md): Include it before ...
	(use_literal_pool): New attribute.
	(enabled): Use new attribute.
	(split pattern): Replace symbol+offset with MOVW/MOVT.

gcc/testsuite/ChangeLog
2013-11-25  Terry Guo  <terry.guo@arm.com>

	* gcc.target/arm/thumb2-slow-flash-data.c: New.

From-SVN: r205342