r209108 - in /branches/gcc-4_8-branch/gcc: Chan...

[wschmidt@gcc.gnu.org]

Author: wschmidt
Date: Fri Apr  4 14:44:21 2014
New Revision: 209108

URL: http://gcc.gnu.org/viewcvs?rev=209108&root=gcc&view=rev
Log:
2014-04-04  Bill Schmidt  <wschmidt@linux.vnet.ibm.com>

	Backport from mainline
        2014-02-04  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* config/rs6000/rs6000.opt (-mlra): Add switch to enable the LRA
	register allocator.

	* config/rs6000/rs6000.c (TARGET_LRA_P): Add support for -mlra to
	enable the LRA register allocator.  Back port the changes from the
	trunk to enable LRA.
	(rs6000_legitimate_offset_address_p): Likewise.
	(legitimate_lo_sum_address_p): Likewise.
	(use_toc_relative_ref): Likewise.
	(rs6000_legitimate_address_p): Likewise.
	(rs6000_emit_move): Likewise.
	(rs6000_secondary_memory_needed_mode): Likewise.
	(rs6000_alloc_sdmode_stack_slot): Likewise.
	(rs6000_lra_p): Likewise.

	* config/rs6000/sync.md (load_lockedti): Copy TI/PTI variables by
	64-bit parts to force the register allocator to allocate even/odd
	register pairs for the quad word atomic instructions.
	(store_conditionalti): Likewise.


Modified:
    branches/gcc-4_8-branch/gcc/ChangeLog
    branches/gcc-4_8-branch/gcc/config/rs6000/rs6000.c
    branches/gcc-4_8-branch/gcc/config/rs6000/rs6000.opt
    branches/gcc-4_8-branch/gcc/config/rs6000/sync.md