Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 84 insertions, 0 deletions

diff --git a/gcc-4.9/gcc/config/avr/avr.opt b/gcc-4.9/gcc/config/avr/avr.opt
new file mode 100644
index 000000000..5be80aa2d
--- /dev/null
+++ b/gcc-4.9/gcc/config/avr/avr.opt
@@ -0,0 +1,84 @@
+; Options for the ATMEL AVR port of the compiler.
+
+; Copyright (C) 2005-2014 Free Software Foundation, Inc.
+;
+; This file is part of GCC.
+;
+; GCC is free software; you can redistribute it and/or modify it under
+; the terms of the GNU General Public License as published by the Free
+; Software Foundation; either version 3, or (at your option) any later
+; version.
+;
+; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+; WARRANTY; without even the implied warranty of MERCHANTABILITY or
+; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+; for more details.
+;
+; You should have received a copy of the GNU General Public License
+; along with GCC; see the file COPYING3.  If not see
+; <http://www.gnu.org/licenses/>.
+
+mcall-prologues
+Target Report Mask(CALL_PROLOGUES)
+Use subroutines for function prologues and epilogues
+
+mmcu=
+Target RejectNegative Joined Var(avr_mcu_index) Init(0) Enum(avr_mcu)
+-mmcu=MCU	Select the target MCU
+
+mdeb
+Target Report Undocumented Mask(ALL_DEBUG)
+
+mlog=
+Target RejectNegative Joined Undocumented Var(avr_log_details)
+
+mint8
+Target Report Mask(INT8)
+Use an 8-bit 'int' type
+
+mno-interrupts
+Target Report RejectNegative Mask(NO_INTERRUPTS)
+Change the stack pointer without disabling interrupts
+
+mbranch-cost=
+Target Report Joined RejectNegative UInteger Var(avr_branch_cost) Init(0)
+Set the branch costs for conditional branch instructions.  Reasonable values are small, non-negative integers.  The default branch cost is 0.
+
+morder1
+Target Report Undocumented Mask(ORDER_1)
+
+morder2
+Target Report Undocumented Mask(ORDER_2)
+
+mtiny-stack
+Target Report Mask(TINY_STACK)
+Change only the low 8 bits of the stack pointer
+
+mrelax
+Target Report
+Relax branches
+
+mpmem-wrap-around
+Target Report
+Make the linker relaxation machine assume that a program counter wrap-around occurs.
+
+maccumulate-args
+Target Report Mask(ACCUMULATE_OUTGOING_ARGS)
+Accumulate outgoing function arguments and acquire/release the needed stack space for outpoing function arguments in function prologue/epilogue.  Without this option, outgoing arguments are pushed before calling a function and popped afterwards.  This option can lead to reduced code size for functions that call many functions that get their arguments on the stack like, for example printf.
+
+mstrict-X
+Target Report Var(avr_strict_X) Init(0)
+When accessing RAM, use X as imposed by the hardware, i.e. just use pre-decrement, post-increment and indirect addressing with the X register.  Without this option, the compiler may assume that there is an addressing mode X+const similar to Y+const and Z+const and emit instructions to emulate such an addressing mode for X.
+
+;; For rationale behind -msp8 see explanation in avr.h.
+msp8
+Target Report RejectNegative Var(avr_sp8) Init(0)
+The device has no SPH special function register. This option will be overridden by the compiler driver with the correct setting if presence/absence of SPH can be deduced from -mmcu=MCU.
+
+Waddr-space-convert
+Warning C Report Var(avr_warn_addr_space_convert) Init(0)
+Warn if the address space of an address is changed.
+
+mfract-convert-truncate
+Target Report Mask(FRACT_CONV_TRUNC)
+Allow to use truncation instead of rounding towards 0 for fractional int types