| ; Options for the S/390 / zSeries port of the compiler. |
| |
| ; Copyright (C) 2005-2013 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/>. |
| |
| HeaderInclude |
| config/s390/s390-opts.h |
| |
| ; The architecture name to use in diagnostics. |
| Variable |
| const char *s390_arch_string |
| |
| Variable |
| int s390_tune_flags |
| |
| Variable |
| int s390_arch_flags |
| |
| Variable |
| HOST_WIDE_INT s390_warn_framesize = 0 |
| |
| m31 |
| Target Report RejectNegative Negative(m64) InverseMask(64BIT) |
| 31 bit ABI |
| |
| m64 |
| Target Report RejectNegative Negative(m31) Mask(64BIT) |
| 64 bit ABI |
| |
| march= |
| Target RejectNegative Joined Enum(processor_type) Var(s390_arch) Init(PROCESSOR_max) |
| Generate code for given CPU |
| |
| Enum |
| Name(processor_type) Type(enum processor_type) |
| |
| EnumValue |
| Enum(processor_type) String(g5) Value(PROCESSOR_9672_G5) |
| |
| EnumValue |
| Enum(processor_type) String(g6) Value(PROCESSOR_9672_G6) |
| |
| EnumValue |
| Enum(processor_type) String(z900) Value(PROCESSOR_2064_Z900) |
| |
| EnumValue |
| Enum(processor_type) String(z990) Value(PROCESSOR_2084_Z990) |
| |
| EnumValue |
| Enum(processor_type) String(z9-109) Value(PROCESSOR_2094_Z9_109) |
| |
| EnumValue |
| Enum(processor_type) String(z9-ec) Value(PROCESSOR_2094_Z9_EC) |
| |
| EnumValue |
| Enum(processor_type) String(z10) Value(PROCESSOR_2097_Z10) |
| |
| EnumValue |
| Enum(processor_type) String(z196) Value(PROCESSOR_2817_Z196) |
| |
| EnumValue |
| Enum(processor_type) String(zEC12) Value(PROCESSOR_2827_ZEC12) |
| |
| mbackchain |
| Target Report Mask(BACKCHAIN) |
| Maintain backchain pointer |
| |
| mdebug |
| Target Report Mask(DEBUG_ARG) |
| Additional debug prints |
| |
| mesa |
| Target Report RejectNegative Negative(mzarch) InverseMask(ZARCH) |
| ESA/390 architecture |
| |
| mhard-dfp |
| Target Report Mask(HARD_DFP) |
| Enable decimal floating point hardware support |
| |
| mhard-float |
| Target Report RejectNegative Negative(msoft-float) InverseMask(SOFT_FLOAT, HARD_FLOAT) |
| Enable hardware floating point |
| |
| mhotpatch |
| Target Report Var(s390_deferred_options) Defer |
| Prepend the function label with 12 two-byte Nop instructions, and add a four byte Nop instruction after the label for hotpatching. |
| |
| mhotpatch= |
| Target RejectNegative Report Joined Var(s390_deferred_options) Defer |
| Prepend the function label with the given number of two-byte Nop instructions, and add a four byte Nop instruction after the label for hotpatching. |
| |
| mlong-double-128 |
| Target Report RejectNegative Negative(mlong-double-64) Mask(LONG_DOUBLE_128) |
| Use 128-bit long double |
| |
| mlong-double-64 |
| Target Report RejectNegative Negative(mlong-double-128) InverseMask(LONG_DOUBLE_128) |
| Use 64-bit long double |
| |
| mhtm |
| Target Report Mask(OPT_HTM) |
| Use hardware transactional execution instructions |
| |
| mpacked-stack |
| Target Report Mask(PACKED_STACK) |
| Use packed stack layout |
| |
| msmall-exec |
| Target Report Mask(SMALL_EXEC) |
| Use bras for executable < 64k |
| |
| msoft-float |
| Target Report RejectNegative Negative(mhard-float) Mask(SOFT_FLOAT) |
| Disable hardware floating point |
| |
| mstack-guard= |
| Target RejectNegative Joined UInteger Var(s390_stack_guard) |
| Set the max. number of bytes which has to be left to stack size before a trap instruction is triggered |
| |
| mstack-size= |
| Target RejectNegative Joined UInteger Var(s390_stack_size) |
| Emit extra code in the function prologue in order to trap if the stack size exceeds the given limit |
| |
| mtune= |
| Target RejectNegative Joined Enum(processor_type) Var(s390_tune) Init(PROCESSOR_max) |
| Schedule code for given CPU |
| |
| mmvcle |
| Target Report Mask(MVCLE) |
| mvcle use |
| |
| mwarn-dynamicstack |
| Target RejectNegative Var(s390_warn_dynamicstack_p) |
| Warn if a function uses alloca or creates an array with dynamic size |
| |
| mwarn-framesize= |
| Target RejectNegative Joined |
| Warn if a single function's framesize exceeds the given framesize |
| |
| mzarch |
| Target Report RejectNegative Negative(mesa) Mask(ZARCH) |
| z/Architecture |
| |
| mbranch-cost= |
| Target Report Joined RejectNegative UInteger Var(s390_branch_cost) Init(1) |
| Set the branch costs for conditional branch instructions. Reasonable |
| values are small, non-negative integers. The default branch cost is |
| 1. |
