gcc/
2007-07-02 Sandra Loosemore <sandra@codesourcery.com>
Richard Sandiford <richard@codesourcery.com>
Nigel Stephens <nigel@mips.com>
* config/mips/mips-protos.h (mips16e_save_restore_info): New struct.
(mips16e_output_save_restore): Declare.
(mips16e_save_restore_pattern_p): Likewise.
* config/mips/mips.h (GENERATE_MIPS16E_SAVE_RESTORE): New macro.
* config/mips/mips.c (MIPS_MAX_FIRST_STACK_STEP): Return 0x7f8
for GENERATE_MIPS16E_SAVE_RESTORE. Return 0x400 for TARGET_MIPS16
&& !GENERATE_MIPS16E_SAVE_RESTORE && !TARGET_64BIT.
(BITSET_P): New global macro, extracted from...
(mips_for_each_saved_reg): ...here.
(mips16e_save_restore_info): New struct.
(mips16e_s2_s8_regs, mips16e_a0_a3_regs): New variables.
(mips16e_save_restore_regs): New variable.
(mips_split_plus, mips16e_find_first_register): New functions.
(mips16e_mask_registers): New function.
(compute_frame_size): Expand the commentary before the function.
Enforce the MIPS16e save and restore register range restrictions.
Pad the general register save area at the low end.
(mips16e_save_restore_reg, mips16e_build_save_restore)
(mips16e_save_restore_pattern_p, mips16e_add_register_range)
(mips16e_output_save_restore, mips16e_collect_propagate_value)
(mips16e_collect_argument_save, mips16e_collect_argument_saves):
New functions.
(mips_expand_prologue, mips_expand_epilogue): Handle
GENERATE_MIPS16E_SAVE_RESTORE.
* config/mips/mips.md (*mips16e_save_restore): New pattern.
gcc/testsuite/
* gcc.target/mips/save-restore-1.c: New test.
* gcc.target/mips/save-restore-2.c: Likewise.
* gcc.target/mips/save-restore-3.c: Likewise.
* gcc.target/mips/save-restore-4.c: Likewise.
From-SVN: r126207
