| ; Machine description for AArch64 architecture. |
| ; Copyright (C) 2009-2014 Free Software Foundation, Inc. |
| ; Contributed by ARM Ltd. |
| ; |
| ; 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/aarch64/aarch64-opts.h |
| |
| ; The TLS dialect names to use with -mtls-dialect. |
| |
| Enum |
| Name(tls_type) Type(enum aarch64_tls_type) |
| The possible TLS dialects: |
| |
| EnumValue |
| Enum(tls_type) String(trad) Value(TLS_TRADITIONAL) |
| |
| EnumValue |
| Enum(tls_type) String(desc) Value(TLS_DESCRIPTORS) |
| |
| ; The code model option names for -mcmodel. |
| |
| Enum |
| Name(cmodel) Type(enum aarch64_code_model) |
| The code model option names for -mcmodel: |
| |
| EnumValue |
| Enum(cmodel) String(tiny) Value(AARCH64_CMODEL_TINY) |
| |
| EnumValue |
| Enum(cmodel) String(small) Value(AARCH64_CMODEL_SMALL) |
| |
| EnumValue |
| Enum(cmodel) String(large) Value(AARCH64_CMODEL_LARGE) |
| |
| ; The cpu/arch option names to use in cpu/arch selection. |
| |
| Variable |
| const char *aarch64_arch_string |
| |
| Variable |
| const char *aarch64_cpu_string |
| |
| Variable |
| const char *aarch64_tune_string |
| |
| mbig-endian |
| Target Report RejectNegative Mask(BIG_END) |
| Assume target CPU is configured as big endian |
| |
| mgeneral-regs-only |
| Target Report RejectNegative Mask(GENERAL_REGS_ONLY) |
| Generate code which uses only the general registers |
| |
| mfix-cortex-a53-835769 |
| Target Report Var(aarch64_fix_a53_err835769) Init(2) |
| Workaround for ARM Cortex-A53 Erratum number 835769 |
| |
| mlittle-endian |
| Target Report RejectNegative InverseMask(BIG_END) |
| Assume target CPU is configured as little endian |
| |
| mcmodel= |
| Target RejectNegative Joined Enum(cmodel) Var(aarch64_cmodel_var) Init(AARCH64_CMODEL_SMALL) |
| Specify the code model |
| |
| mstrict-align |
| Target Report RejectNegative Mask(STRICT_ALIGN) |
| Don't assume that unaligned accesses are handled by the system |
| |
| momit-leaf-frame-pointer |
| Target Report Save Var(flag_omit_leaf_frame_pointer) Init(1) |
| Omit the frame pointer in leaf functions |
| |
| mtls-dialect= |
| Target RejectNegative Joined Enum(tls_type) Var(aarch64_tls_dialect) Init(TLS_DESCRIPTORS) |
| Specify TLS dialect |
| |
| march= |
| Target RejectNegative ToLower Joined Var(aarch64_arch_string) |
| -march=ARCH Use features of architecture ARCH |
| |
| mcpu= |
| Target RejectNegative ToLower Joined Var(aarch64_cpu_string) |
| -mcpu=CPU Use features of and optimize for CPU |
| |
| mtune= |
| Target RejectNegative ToLower Joined Var(aarch64_tune_string) |
| -mtune=CPU Optimize for CPU |
| |
| mabi= |
| Target RejectNegative Joined Enum(aarch64_abi) Var(aarch64_abi) Init(AARCH64_ABI_DEFAULT) |
| -mabi=ABI Generate code that conforms to the specified ABI |
| |
| mlra |
| Target Report Var(aarch64_lra_flag) Init(1) Save |
| Use LRA instead of reload (transitional) |
| |
| Enum |
| Name(aarch64_abi) Type(int) |
| Known AArch64 ABIs (for use with the -mabi= option): |
| |
| EnumValue |
| Enum(aarch64_abi) String(ilp32) Value(AARCH64_ABI_ILP32) |
| |
| EnumValue |
| Enum(aarch64_abi) String(lp64) Value(AARCH64_ABI_LP64) |
