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

; Options for the NVPTX port
; Copyright (C) 2014-2024 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/>.

; It's not clear whether this was ever build/tested/used, so this is no longer
; exposed to the user.
;m32
;Target RejectNegative InverseMask(ABI64)
;Generate code for a 32-bit ABI.

m64
Target RejectNegative Mask(ABI64)
Ignored, but preserved for backward compatibility.  Only 64-bit ABI is
supported.

mmainkernel
Target RejectNegative
Link in code for a __main kernel.

moptimize
Target Var(nvptx_optimize) Init(-1)
Optimize partition neutering.

msoft-stack
Target Mask(SOFT_STACK)
Use custom stacks instead of local memory for automatic storage.

msoft-stack-reserve-local=
Target Joined RejectNegative UInteger Var(nvptx_softstack_size) Init(128)
Specify size of .local memory used for stack when the exact amount is not known.

muniform-simt
Target Mask(UNIFORM_SIMT)
Generate code that can keep local state uniform across all lanes.

mgomp
Target Mask(GOMP)
Generate code for OpenMP offloading: enables -msoft-stack and -muniform-simt.

misa=
Target RejectNegative ToLower Joined Enum(ptx_isa) Var(ptx_isa_option)
Specify the PTX ISA target architecture to use.

march=
Target RejectNegative Joined Alias(misa=)
Alias:

march-map=sm_30
Target RejectNegative Alias(misa=,sm_30)

march-map=sm_32
Target RejectNegative Alias(misa=,sm_30)

march-map=sm_35
Target RejectNegative Alias(misa=,sm_35)

march-map=sm_37
Target RejectNegative Alias(misa=,sm_35)

march-map=sm_50
Target RejectNegative Alias(misa=,sm_35)

march-map=sm_52
Target RejectNegative Alias(misa=,sm_35)

march-map=sm_53
Target RejectNegative Alias(misa=,sm_53)

march-map=sm_60
Target RejectNegative Alias(misa=,sm_53)

march-map=sm_61
Target RejectNegative Alias(misa=,sm_53)

march-map=sm_62
Target RejectNegative Alias(misa=,sm_53)

march-map=sm_70
Target RejectNegative Alias(misa=,sm_70)

march-map=sm_72
Target RejectNegative Alias(misa=,sm_70)

march-map=sm_75
Target RejectNegative Alias(misa=,sm_75)

march-map=sm_80
Target RejectNegative Alias(misa=,sm_80)

march-map=sm_86
Target RejectNegative Alias(misa=,sm_80)

march-map=sm_87
Target RejectNegative Alias(misa=,sm_80)

march-map=sm_90
Target RejectNegative Alias(misa=,sm_80)

Enum
Name(ptx_version) Type(int)
Known PTX ISA versions (for use with the -mptx= option):

EnumValue
Enum(ptx_version) String(3.1) Value(PTX_VERSION_3_1)

EnumValue
Enum(ptx_version) String(6.0) Value(PTX_VERSION_6_0)

EnumValue
Enum(ptx_version) String(6.3) Value(PTX_VERSION_6_3)

EnumValue
Enum(ptx_version) String(7.0) Value(PTX_VERSION_7_0)

EnumValue
Enum(ptx_version) String(_) Value(PTX_VERSION_default)

mptx=
Target RejectNegative ToLower Joined Enum(ptx_version) Var(ptx_version_option)
Specify the PTX ISA version to use.

minit-regs=
Target Var(nvptx_init_regs) IntegerRange(0, 3) Joined UInteger Init(3)
Initialize ptx registers.

mptx-comment
Target Var(nvptx_comment) Init(1) Undocumented

malias
Target Var(nvptx_alias) Init(0) Undocumented

mexperimental
Target Var(nvptx_experimental) Init(0) Undocumented