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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [mips/] [mips.opt] - Rev 523
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; Options for the MIPS port of the compiler
;
; Copyright (C) 2005, 2007, 2008 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/>.
mabi=
Target RejectNegative Joined
-mabi=ABI Generate code that conforms to the given ABI
mabicalls
Target Report Mask(ABICALLS)
Generate code that can be used in SVR4-style dynamic objects
mad
Target Report Var(TARGET_MAD)
Use PMC-style 'mad' instructions
march=
Target RejectNegative Joined Var(mips_arch_string)
-march=ISA Generate code for the given ISA
mbranch-cost=
Target RejectNegative Joined UInteger Var(mips_branch_cost)
-mbranch-cost=COST Set the cost of branches to roughly COST instructions
mbranch-likely
Target Report Mask(BRANCHLIKELY)
Use Branch Likely instructions, overriding the architecture default
mflip-mips16
Target Report Var(TARGET_FLIP_MIPS16)
Switch on/off MIPS16 ASE on alternating functions for compiler testing
mcheck-zero-division
Target Report Mask(CHECK_ZERO_DIV)
Trap on integer divide by zero
mcode-readable=
Target RejectNegative Joined
-mcode-readable=SETTING Specify when instructions are allowed to access code
mdivide-breaks
Target Report RejectNegative Mask(DIVIDE_BREAKS)
Use branch-and-break sequences to check for integer divide by zero
mdivide-traps
Target Report RejectNegative InverseMask(DIVIDE_BREAKS, DIVIDE_TRAPS)
Use trap instructions to check for integer divide by zero
mdmx
Target Report RejectNegative Var(TARGET_MDMX)
Allow the use of MDMX instructions
mdouble-float
Target Report RejectNegative InverseMask(SINGLE_FLOAT, DOUBLE_FLOAT)
Allow hardware floating-point instructions to cover both 32-bit and 64-bit operations
mdsp
Target Report Mask(DSP)
Use MIPS-DSP instructions
mdspr2
Target Report Mask(DSPR2)
Use MIPS-DSP REV 2 instructions
mdebug
Target Var(TARGET_DEBUG_MODE) Undocumented
mdebugd
Target Var(TARGET_DEBUG_D_MODE) Undocumented
meb
Target Report RejectNegative Mask(BIG_ENDIAN)
Use big-endian byte order
mel
Target Report RejectNegative InverseMask(BIG_ENDIAN, LITTLE_ENDIAN)
Use little-endian byte order
membedded-data
Target Report Var(TARGET_EMBEDDED_DATA)
Use ROM instead of RAM
mexplicit-relocs
Target Report Mask(EXPLICIT_RELOCS)
Use NewABI-style %reloc() assembly operators
mextern-sdata
Target Report Var(TARGET_EXTERN_SDATA) Init(1)
Use -G for data that is not defined by the current object
mfix-r4000
Target Report Mask(FIX_R4000)
Work around certain R4000 errata
mfix-r4400
Target Report Mask(FIX_R4400)
Work around certain R4400 errata
mfix-r10000
Target Report Mask(FIX_R10000)
Work around certain R10000 errata
mfix-sb1
Target Report Var(TARGET_FIX_SB1)
Work around errata for early SB-1 revision 2 cores
mfix-vr4120
Target Report Var(TARGET_FIX_VR4120)
Work around certain VR4120 errata
mfix-vr4130
Target Report Var(TARGET_FIX_VR4130)
Work around VR4130 mflo/mfhi errata
mfix4300
Target Report Var(TARGET_4300_MUL_FIX)
Work around an early 4300 hardware bug
mfp-exceptions
Target Report Mask(FP_EXCEPTIONS)
FP exceptions are enabled
mfp32
Target Report RejectNegative InverseMask(FLOAT64)
Use 32-bit floating-point registers
mfp64
Target Report RejectNegative Mask(FLOAT64)
Use 64-bit floating-point registers
mflush-func=
Target RejectNegative Joined Var(mips_cache_flush_func) Init(CACHE_FLUSH_FUNC)
-mflush-func=FUNC Use FUNC to flush the cache before calling stack trampolines
mfused-madd
Target Report Mask(FUSED_MADD)
Generate floating-point multiply-add instructions
mgp32
Target Report RejectNegative InverseMask(64BIT)
Use 32-bit general registers
mgp64
Target Report RejectNegative Mask(64BIT)
Use 64-bit general registers
mgpopt
Target Report Var(TARGET_GPOPT) Init(1)
Use GP-relative addressing to access small data
mplt
Target Report Var(TARGET_PLT)
When generating -mabicalls code, allow executables to use PLTs and copy relocations
mhard-float
Target Report RejectNegative InverseMask(SOFT_FLOAT_ABI, HARD_FLOAT_ABI)
Allow the use of hardware floating-point ABI and instructions
minterlink-mips16
Target Report Var(TARGET_INTERLINK_MIPS16) Init(0)
Generate code that can be safely linked with MIPS16 code.
mips
Target RejectNegative Joined
-mipsN Generate code for ISA level N
mips16
Target Report RejectNegative Mask(MIPS16)
Generate MIPS16 code
mips3d
Target Report RejectNegative Mask(MIPS3D)
Use MIPS-3D instructions
mllsc
Target Report Mask(LLSC)
Use ll, sc and sync instructions
mlocal-sdata
Target Report Var(TARGET_LOCAL_SDATA) Init(1)
Use -G for object-local data
mlong-calls
Target Report Var(TARGET_LONG_CALLS)
Use indirect calls
mlong32
Target Report RejectNegative InverseMask(LONG64, LONG32)
Use a 32-bit long type
mlong64
Target Report RejectNegative Mask(LONG64)
Use a 64-bit long type
mmcount-ra-address
Target Report Var(TARGET_MCOUNT_RA_ADDRESS)
Pass the address of the ra save location to _mcount in $12
mmemcpy
Target Report Mask(MEMCPY)
Don't optimize block moves
mmips-tfile
Target
Use the mips-tfile postpass
mmt
Target Report Var(TARGET_MT)
Allow the use of MT instructions
mno-flush-func
Target RejectNegative
Do not use a cache-flushing function before calling stack trampolines
mno-mdmx
Target Report RejectNegative InverseVar(MDMX)
Do not use MDMX instructions
mno-mips16
Target Report RejectNegative InverseMask(MIPS16)
Generate normal-mode code
mno-mips3d
Target Report RejectNegative InverseMask(MIPS3D)
Do not use MIPS-3D instructions
mpaired-single
Target Report Mask(PAIRED_SINGLE_FLOAT)
Use paired-single floating-point instructions
mr10k-cache-barrier=
Target Joined RejectNegative
-mr10k-cache-barrier=SETTING Specify when r10k cache barriers should be inserted
mrelax-pic-calls
Target Report Mask(RELAX_PIC_CALLS)
Try to allow the linker to turn PIC calls into direct calls
mshared
Target Report Var(TARGET_SHARED) Init(1)
When generating -mabicalls code, make the code suitable for use in shared libraries
msingle-float
Target Report RejectNegative Mask(SINGLE_FLOAT)
Restrict the use of hardware floating-point instructions to 32-bit operations
msmartmips
Target Report Mask(SMARTMIPS)
Use SmartMIPS instructions
msoft-float
Target Report RejectNegative Mask(SOFT_FLOAT_ABI)
Prevent the use of all hardware floating-point instructions
msplit-addresses
Target Report Mask(SPLIT_ADDRESSES)
Optimize lui/addiu address loads
msym32
Target Report Var(TARGET_SYM32)
Assume all symbols have 32-bit values
msynci
Target Report Mask(SYNCI)
Use synci instruction to invalidate i-cache
mtune=
Target RejectNegative Joined Var(mips_tune_string)
-mtune=PROCESSOR Optimize the output for PROCESSOR
muninit-const-in-rodata
Target Report Var(TARGET_UNINIT_CONST_IN_RODATA)
Put uninitialized constants in ROM (needs -membedded-data)
mvr4130-align
Target Report Mask(VR4130_ALIGN)
Perform VR4130-specific alignment optimizations
mxgot
Target Report Var(TARGET_XGOT)
Lift restrictions on GOT size
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