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; Options of Andes NDS32 cpu for GNU compiler
; Copyright (C) 2012-2013 Free Software Foundation, Inc.
; Contributed by Andes Technology Corporation.
;
; 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/>.
HeaderInclude
config/nds32/nds32-opts.h
mbig-endian
Target Report RejectNegative Negative(mlittle-endian) Mask(BIG_ENDIAN)
Generate code in big-endian mode.
mlittle-endian
Target Report RejectNegative Negative(mbig-endian) InverseMask(BIG_ENDIAN)
Generate code in little-endian mode.
mreduced-regs
Target Report RejectNegative Negative(mfull-regs) Mask(REDUCED_REGS)
Use reduced-set registers for register allocation.
mfull-regs
Target Report RejectNegative Negative(mreduced-regs) InverseMask(REDUCED_REGS)
Use full-set registers for register allocation.
mcmov
Target Report Mask(CMOV)
Generate conditional move instructions.
mperf-ext
Target Report Mask(PERF_EXT)
Generate performance extension instructions.
mv3push
Target Report Mask(V3PUSH)
Generate v3 push25/pop25 instructions.
m16-bit
Target Report Mask(16_BIT)
Generate 16-bit instructions.
mgp-direct
Target Report Mask(GP_DIRECT)
Generate GP base instructions directly.
misr-vector-size=
Target RejectNegative Joined UInteger Var(nds32_isr_vector_size) Init(NDS32_DEFAULT_ISR_VECTOR_SIZE)
Specify the size of each interrupt vector, which must be 4 or 16.
mcache-block-size=
Target RejectNegative Joined UInteger Var(nds32_cache_block_size) Init(NDS32_DEFAULT_CACHE_BLOCK_SIZE)
Specify the size of each cache block, which must be a power of 2 between 4 and 512.
march=
Target RejectNegative Joined Enum(nds32_arch_type) Var(nds32_arch_option) Init(ARCH_V3)
Specify the name of the target architecture.
Enum
Name(nds32_arch_type) Type(enum nds32_arch_type)
EnumValue
Enum(nds32_arch_type) String(v2) Value(ARCH_V2)
EnumValue
Enum(nds32_arch_type) String(v3) Value(ARCH_V3)
EnumValue
Enum(nds32_arch_type) String(v3m) Value(ARCH_V3M)
mforce-fp-as-gp
Target Report Mask(FORCE_FP_AS_GP)
Prevent $fp being allocated during register allocation so that compiler is able to force performing fp-as-gp optimization.
mforbid-fp-as-gp
Target Report Mask(FORBID_FP_AS_GP)
Forbid using $fp to access static and global variables. This option strictly forbids fp-as-gp optimization regardless of '-mforce-fp-as-gp'.
mex9
Target Report Mask(EX9)
Use special directives to guide linker doing ex9 optimization.
mctor-dtor
Target Report
Enable constructor/destructor feature.
mrelax
Target Report
Guide linker to relax instructions.
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