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[thirdparty/gcc.git] / gcc / config / microblaze / microblaze.opt

; Options for the MicroBlaze port of the compiler
;
; Copyright (C) 2009-2022 Free Software Foundation, Inc.
;
; Contributed by Michael Eager <eager@eagercon.com>.
;
; 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/>.  */

Zxl-mode-bootstrap
Driver

Zxl-mode-executable
Driver

Zxl-mode-novectors
Driver

Zxl-mode-xilkernel
Driver

Zxl-mode-xmdstub
Driver

msoft-float
Target RejectNegative Mask(SOFT_FLOAT)
Use software emulation for floating point (default).

mhard-float
Target RejectNegative InverseMask(SOFT_FLOAT, HARD_FLOAT)
Use hardware floating point instructions.

msmall-divides
Target Mask(SMALL_DIVIDES)
Use table lookup optimization for small signed integer divisions.

mcpu=
Target RejectNegative Joined Var(microblaze_select_cpu)
-mcpu=PROCESSOR		Use features of and schedule code for given CPU.

mmemcpy
Target Mask(MEMCPY)
Don't optimize block moves, use memcpy.

mbig-endian
Target RejectNegative InverseMask(LITTLE_ENDIAN)
Assume target CPU is configured as big endian.

mlittle-endian
Target RejectNegative Mask(LITTLE_ENDIAN)
Assume target CPU is configured as little endian.

mxl-soft-mul
Target Mask(SOFT_MUL)
Use the soft multiply emulation (default).

mxl-reorder
Target Var(TARGET_REORDER) Init(2)
Use reorder instructions (swap and byte reversed load/store) (default).

mxl-soft-div
Target Mask(SOFT_DIV)
Use the software emulation for divides (default).

mxl-barrel-shift
Target Mask(BARREL_SHIFT)
Use the hardware barrel shifter instead of emulation.

mxl-pattern-compare
Target Mask(PATTERN_COMPARE)
Use pattern compare instructions.

mxl-stack-check
Target Mask(STACK_CHECK) Warn(%qs is deprecated; use -fstack-check)
Check for stack overflow at runtime.

mxl-gp-opt
Target Mask(XLGPOPT)
Use GP relative sdata/sbss sections.

mno-clearbss
Target RejectNegative Var(flag_zero_initialized_in_bss, 0) Warn(%qs is deprecated; use -fno-zero-initialized-in-bss)
Clear the BSS to zero and place zero initialized in BSS.

mxl-multiply-high
Target Mask(MULTIPLY_HIGH)
Use multiply high instructions for high part of 32x32 multiply.

mxl-float-convert
Target Mask(FLOAT_CONVERT)
Use hardware floating point conversion instructions.

mxl-float-sqrt
Target Mask(FLOAT_SQRT)
Use hardware floating point square root instruction.

mxl-mode-executable
Target Mask(XL_MODE_EXECUTABLE)
Description for mxl-mode-executable.

mxl-mode-xmdstub
Target Mask(XL_MODE_XMDSTUB)
Description for mxl-mode-xmdstub.

mxl-mode-bootstrap
Target Mask(XL_MODE_BOOTSTRAP)
Description for mxl-mode-bootstrap.

mxl-mode-novectors
Target Mask(XL_MODE_NOVECTORS)
Description for mxl-mode-novectors.

mxl-prefetch
Target Mask(PREFETCH)
Use hardware prefetch instruction.

mpic-data-is-text-relative
Target Mask(PIC_DATA_TEXT_REL)
Data referenced by offset from start of text instead of GOT (with -fPIC/-fPIE).

mxl-mode-xilkernel
Target