; Options for the IA-32 and AMD64 ports of the compiler.
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; Options for the IA-32 and AMD64 ports of the compiler.
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|
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; Copyright (C) 2005, 2007 Free Software Foundation, Inc.
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; Copyright (C) 2005, 2007 Free Software Foundation, Inc.
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;
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;
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; This file is part of GCC.
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; This file is part of GCC.
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;
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;
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; GCC is free software; you can redistribute it and/or modify it under
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; GCC is free software; you can redistribute it and/or modify it under
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; the terms of the GNU General Public License as published by the Free
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; the terms of the GNU General Public License as published by the Free
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; Software Foundation; either version 3, or (at your option) any later
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; Software Foundation; either version 3, or (at your option) any later
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; version.
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; version.
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;
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;
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; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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; GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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; WARRANTY; without even the implied warranty of MERCHANTABILITY or
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; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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; for more details.
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; for more details.
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;
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;
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; You should have received a copy of the GNU General Public License
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; You should have received a copy of the GNU General Public License
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; along with GCC; see the file COPYING3. If not see
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; along with GCC; see the file COPYING3. If not see
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; .
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; .
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m128bit-long-double
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m128bit-long-double
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Target RejectNegative Report Mask(128BIT_LONG_DOUBLE)
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Target RejectNegative Report Mask(128BIT_LONG_DOUBLE)
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sizeof(long double) is 16
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sizeof(long double) is 16
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m32
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m32
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Target RejectNegative Negative(m64) Report InverseMask(64BIT)
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Target RejectNegative Negative(m64) Report InverseMask(64BIT)
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Generate 32bit i386 code
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Generate 32bit i386 code
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m386
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m386
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Target RejectNegative Undocumented
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Target RejectNegative Undocumented
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;; Deprecated
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;; Deprecated
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|
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m3dnow
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m3dnow
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Target Report Mask(3DNOW)
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Target Report Mask(3DNOW)
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Support 3DNow! built-in functions
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Support 3DNow! built-in functions
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|
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m486
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m486
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Target RejectNegative Undocumented
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Target RejectNegative Undocumented
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;; Deprecated
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;; Deprecated
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|
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m64
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m64
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Target RejectNegative Negative(m32) Report Mask(64BIT)
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Target RejectNegative Negative(m32) Report Mask(64BIT)
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Generate 64bit x86-64 code
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Generate 64bit x86-64 code
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m80387
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m80387
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Target Report Mask(80387)
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Target Report Mask(80387)
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Use hardware fp
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Use hardware fp
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|
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m96bit-long-double
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m96bit-long-double
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Target RejectNegative Report InverseMask(128BIT_LONG_DOUBLE)
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Target RejectNegative Report InverseMask(128BIT_LONG_DOUBLE)
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sizeof(long double) is 12
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sizeof(long double) is 12
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|
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maccumulate-outgoing-args
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maccumulate-outgoing-args
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Target Report Mask(ACCUMULATE_OUTGOING_ARGS)
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Target Report Mask(ACCUMULATE_OUTGOING_ARGS)
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Reserve space for outgoing arguments in the function prologue
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Reserve space for outgoing arguments in the function prologue
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malign-double
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malign-double
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Target Report Mask(ALIGN_DOUBLE)
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Target Report Mask(ALIGN_DOUBLE)
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Align some doubles on dword boundary
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Align some doubles on dword boundary
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malign-functions=
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malign-functions=
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Target RejectNegative Joined Var(ix86_align_funcs_string)
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Target RejectNegative Joined Var(ix86_align_funcs_string)
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Function starts are aligned to this power of 2
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Function starts are aligned to this power of 2
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malign-jumps=
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malign-jumps=
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Target RejectNegative Joined Var(ix86_align_jumps_string)
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Target RejectNegative Joined Var(ix86_align_jumps_string)
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Jump targets are aligned to this power of 2
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Jump targets are aligned to this power of 2
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malign-loops=
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malign-loops=
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Target RejectNegative Joined Var(ix86_align_loops_string)
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Target RejectNegative Joined Var(ix86_align_loops_string)
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Loop code aligned to this power of 2
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Loop code aligned to this power of 2
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|
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malign-stringops
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malign-stringops
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Target RejectNegative Report InverseMask(NO_ALIGN_STRINGOPS, ALIGN_STRINGOPS)
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Target RejectNegative Report InverseMask(NO_ALIGN_STRINGOPS, ALIGN_STRINGOPS)
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Align destination of the string operations
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Align destination of the string operations
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march=
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march=
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Target RejectNegative Joined Var(ix86_arch_string)
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Target RejectNegative Joined Var(ix86_arch_string)
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Generate code for given CPU
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Generate code for given CPU
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masm=
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masm=
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Target RejectNegative Joined Var(ix86_asm_string)
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Target RejectNegative Joined Var(ix86_asm_string)
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Use given assembler dialect
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Use given assembler dialect
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mbranch-cost=
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mbranch-cost=
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Target RejectNegative Joined Var(ix86_branch_cost_string)
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Target RejectNegative Joined Var(ix86_branch_cost_string)
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Branches are this expensive (1-5, arbitrary units)
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Branches are this expensive (1-5, arbitrary units)
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mlarge-data-threshold=
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mlarge-data-threshold=
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Target RejectNegative Joined Var(ix86_section_threshold_string)
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Target RejectNegative Joined Var(ix86_section_threshold_string)
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Data greater than given threshold will go into .ldata section in x86-64 medium model
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Data greater than given threshold will go into .ldata section in x86-64 medium model
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mcmodel=
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mcmodel=
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Target RejectNegative Joined Var(ix86_cmodel_string)
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Target RejectNegative Joined Var(ix86_cmodel_string)
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Use given x86-64 code model
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Use given x86-64 code model
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mdebug-addr
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mdebug-addr
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Target RejectNegative Var(TARGET_DEBUG_ADDR) Undocumented
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Target RejectNegative Var(TARGET_DEBUG_ADDR) Undocumented
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mdebug-arg
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mdebug-arg
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Target RejectNegative Var(TARGET_DEBUG_ARG) Undocumented
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Target RejectNegative Var(TARGET_DEBUG_ARG) Undocumented
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mfancy-math-387
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mfancy-math-387
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Target RejectNegative Report InverseMask(NO_FANCY_MATH_387, USE_FANCY_MATH_387)
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Target RejectNegative Report InverseMask(NO_FANCY_MATH_387, USE_FANCY_MATH_387)
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Generate sin, cos, sqrt for FPU
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Generate sin, cos, sqrt for FPU
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mfp-ret-in-387
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mfp-ret-in-387
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Target Report Mask(FLOAT_RETURNS)
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Target Report Mask(FLOAT_RETURNS)
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Return values of functions in FPU registers
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Return values of functions in FPU registers
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mfpmath=
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mfpmath=
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Target RejectNegative Joined Var(ix86_fpmath_string)
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Target RejectNegative Joined Var(ix86_fpmath_string)
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Generate floating point mathematics using given instruction set
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Generate floating point mathematics using given instruction set
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mhard-float
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mhard-float
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Target RejectNegative Mask(80387) MaskExists
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Target RejectNegative Mask(80387) MaskExists
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Use hardware fp
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Use hardware fp
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mieee-fp
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mieee-fp
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Target Report Mask(IEEE_FP)
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Target Report Mask(IEEE_FP)
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Use IEEE math for fp comparisons
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Use IEEE math for fp comparisons
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minline-all-stringops
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minline-all-stringops
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Target Report Mask(INLINE_ALL_STRINGOPS)
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Target Report Mask(INLINE_ALL_STRINGOPS)
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Inline all known string operations
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Inline all known string operations
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mintel-syntax
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mintel-syntax
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Target Undocumented
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Target Undocumented
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;; Deprecated
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;; Deprecated
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mmmx
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mmmx
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Target Report Mask(MMX)
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Target Report Mask(MMX)
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Support MMX built-in functions
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Support MMX built-in functions
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mms-bitfields
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mms-bitfields
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Target Report Mask(MS_BITFIELD_LAYOUT)
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Target Report Mask(MS_BITFIELD_LAYOUT)
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Use native (MS) bitfield layout
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Use native (MS) bitfield layout
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mno-align-stringops
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mno-align-stringops
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Target RejectNegative Report Mask(NO_ALIGN_STRINGOPS) Undocumented
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Target RejectNegative Report Mask(NO_ALIGN_STRINGOPS) Undocumented
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mno-fancy-math-387
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mno-fancy-math-387
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Target RejectNegative Report Mask(NO_FANCY_MATH_387) Undocumented
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Target RejectNegative Report Mask(NO_FANCY_MATH_387) Undocumented
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|
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mno-push-args
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mno-push-args
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Target RejectNegative Report Mask(NO_PUSH_ARGS) Undocumented
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Target RejectNegative Report Mask(NO_PUSH_ARGS) Undocumented
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|
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mno-red-zone
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mno-red-zone
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Target RejectNegative Report Mask(NO_RED_ZONE) Undocumented
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Target RejectNegative Report Mask(NO_RED_ZONE) Undocumented
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|
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momit-leaf-frame-pointer
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momit-leaf-frame-pointer
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Target Report Mask(OMIT_LEAF_FRAME_POINTER)
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Target Report Mask(OMIT_LEAF_FRAME_POINTER)
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Omit the frame pointer in leaf functions
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Omit the frame pointer in leaf functions
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|
|
mpentium
|
mpentium
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Target RejectNegative Undocumented
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Target RejectNegative Undocumented
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;; Deprecated
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;; Deprecated
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|
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mpentiumpro
|
mpentiumpro
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Target RejectNegative Undocumented
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Target RejectNegative Undocumented
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;; Deprecated
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;; Deprecated
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mpreferred-stack-boundary=
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mpreferred-stack-boundary=
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Target RejectNegative Joined Var(ix86_preferred_stack_boundary_string)
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Target RejectNegative Joined Var(ix86_preferred_stack_boundary_string)
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Attempt to keep stack aligned to this power of 2
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Attempt to keep stack aligned to this power of 2
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mpush-args
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mpush-args
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Target Report InverseMask(NO_PUSH_ARGS, PUSH_ARGS)
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Target Report InverseMask(NO_PUSH_ARGS, PUSH_ARGS)
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Use push instructions to save outgoing arguments
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Use push instructions to save outgoing arguments
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mred-zone
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mred-zone
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Target RejectNegative Report InverseMask(NO_RED_ZONE, RED_ZONE)
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Target RejectNegative Report InverseMask(NO_RED_ZONE, RED_ZONE)
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Use red-zone in the x86-64 code
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Use red-zone in the x86-64 code
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|
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mregparm=
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mregparm=
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Target RejectNegative Joined Var(ix86_regparm_string)
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Target RejectNegative Joined Var(ix86_regparm_string)
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Number of registers used to pass integer arguments
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Number of registers used to pass integer arguments
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mrtd
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mrtd
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Target Report Mask(RTD)
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Target Report Mask(RTD)
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Alternate calling convention
|
Alternate calling convention
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msoft-float
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msoft-float
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Target InverseMask(80387)
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Target InverseMask(80387)
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Do not use hardware fp
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Do not use hardware fp
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msse
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msse
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Target Report Mask(SSE)
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Target Report Mask(SSE)
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Support MMX and SSE built-in functions and code generation
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Support MMX and SSE built-in functions and code generation
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msse2
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msse2
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Target Report Mask(SSE2)
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Target Report Mask(SSE2)
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Support MMX, SSE and SSE2 built-in functions and code generation
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Support MMX, SSE and SSE2 built-in functions and code generation
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|
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msse3
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msse3
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Target Report Mask(SSE3)
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Target Report Mask(SSE3)
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Support MMX, SSE, SSE2 and SSE3 built-in functions and code generation
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Support MMX, SSE, SSE2 and SSE3 built-in functions and code generation
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|
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msseregparm
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msseregparm
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Target RejectNegative Mask(SSEREGPARM)
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Target RejectNegative Mask(SSEREGPARM)
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Use SSE register passing conventions for SF and DF mode
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Use SSE register passing conventions for SF and DF mode
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mstackrealign
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mstackrealign
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Target Report Var(ix86_force_align_arg_pointer)
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Target Report Var(ix86_force_align_arg_pointer)
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Realign stack in prologue
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Realign stack in prologue
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msvr3-shlib
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msvr3-shlib
|
Target Report Mask(SVR3_SHLIB)
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Target Report Mask(SVR3_SHLIB)
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Uninitialized locals in .bss
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Uninitialized locals in .bss
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|
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mstack-arg-probe
|
mstack-arg-probe
|
Target Report Mask(STACK_PROBE)
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Target Report Mask(STACK_PROBE)
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Enable stack probing
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Enable stack probing
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mtls-dialect=
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mtls-dialect=
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Target RejectNegative Joined Var(ix86_tls_dialect_string)
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Target RejectNegative Joined Var(ix86_tls_dialect_string)
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Use given thread-local storage dialect
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Use given thread-local storage dialect
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|
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mtls-direct-seg-refs
|
mtls-direct-seg-refs
|
Target Report Mask(TLS_DIRECT_SEG_REFS)
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Target Report Mask(TLS_DIRECT_SEG_REFS)
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Use direct references against %gs when accessing tls data
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Use direct references against %gs when accessing tls data
|
|
|
mtune=
|
mtune=
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Target RejectNegative Joined Var(ix86_tune_string)
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Target RejectNegative Joined Var(ix86_tune_string)
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Schedule code for given CPU
|
Schedule code for given CPU
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;; Support Athlon 3Dnow builtins
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;; Support Athlon 3Dnow builtins
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Mask(3DNOW_A)
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Mask(3DNOW_A)
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