1 ; Options for the S/390 / zSeries port of the compiler.
3 ; Copyright (C) 2005-2013 Free Software Foundation, Inc.
5 ; This file is part of GCC.
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19 ; <http://www.gnu.org/licenses/>.
22 config/s390/s390-opts.h
24 ; The architecture name to use in diagnostics.
26 const char *s390_arch_string
35 HOST_WIDE_INT s390_warn_framesize = 0
38 Target Report RejectNegative Negative(m64) InverseMask(64BIT)
42 Target Report RejectNegative Negative(m31) Mask(64BIT)
46 Target RejectNegative Joined Enum(processor_type) Var(s390_arch) Init(PROCESSOR_max)
47 Generate code for given CPU
50 Name(processor_type) Type(enum processor_type)
53 Enum(processor_type) String(g5) Value(PROCESSOR_9672_G5)
56 Enum(processor_type) String(g6) Value(PROCESSOR_9672_G6)
59 Enum(processor_type) String(z900) Value(PROCESSOR_2064_Z900)
62 Enum(processor_type) String(z990) Value(PROCESSOR_2084_Z990)
65 Enum(processor_type) String(z9-109) Value(PROCESSOR_2094_Z9_109)
68 Enum(processor_type) String(z9-ec) Value(PROCESSOR_2094_Z9_EC)
71 Enum(processor_type) String(z10) Value(PROCESSOR_2097_Z10)
74 Enum(processor_type) String(z196) Value(PROCESSOR_2817_Z196)
77 Enum(processor_type) String(zEC12) Value(PROCESSOR_2827_ZEC12)
80 Target Report Mask(BACKCHAIN)
81 Maintain backchain pointer
84 Target Report Mask(DEBUG_ARG)
85 Additional debug prints
88 Target Report RejectNegative Negative(mzarch) InverseMask(ZARCH)
92 Target Report Mask(HARD_DFP)
93 Enable decimal floating point hardware support
96 Target Report RejectNegative Negative(msoft-float) InverseMask(SOFT_FLOAT, HARD_FLOAT)
97 Enable hardware floating point
100 Target Report RejectNegative Negative(mlong-double-64) Mask(LONG_DOUBLE_128)
101 Use 128-bit long double
104 Target Report RejectNegative Negative(mlong-double-128) InverseMask(LONG_DOUBLE_128)
105 Use 64-bit long double
108 Target Report Mask(OPT_HTM)
109 Use hardware transactional execution instructions
112 Target Report Mask(PACKED_STACK)
113 Use packed stack layout
116 Target Report Mask(SMALL_EXEC)
117 Use bras for executable < 64k
120 Target Report RejectNegative Negative(mhard-float) Mask(SOFT_FLOAT)
121 Disable hardware floating point
124 Target RejectNegative Joined UInteger Var(s390_stack_guard)
125 Set the max. number of bytes which has to be left to stack size before a trap instruction is triggered
128 Target RejectNegative Joined UInteger Var(s390_stack_size)
129 Emit extra code in the function prologue in order to trap if the stack size exceeds the given limit
132 Target RejectNegative Joined Enum(processor_type) Var(s390_tune) Init(PROCESSOR_max)
133 Schedule code for given CPU
136 Target Report Mask(MVCLE)
140 Target RejectNegative Var(s390_warn_dynamicstack_p)
141 Warn if a function uses alloca or creates an array with dynamic size
144 Target RejectNegative Joined
145 Warn if a single function's framesize exceeds the given framesize
148 Target Report RejectNegative Negative(mesa) Mask(ZARCH)
152 Target Report Joined RejectNegative UInteger Var(s390_branch_cost) Init(1)
153 Set the branch costs for conditional branch instructions. Reasonable
154 values are small, non-negative integers. The default branch cost is
158 Target Report Var(s390_lra_flag) Init(1) Save
159 Use LRA instead of reload