1 ; Options for the SH port of the compiler.
3 ; Copyright (C) 2005-2013 Free Software Foundation, Inc.
5 ; This file is part of GCC.
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8 ; the terms of the GNU General Public License as published by the Free
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21 ;; Used for various architecture options.
24 ;; Set if the default precision of the FPU is single.
27 ;; Set if the a double-precision FPU is present but is restricted to
28 ;; single precision usage only.
31 ;; Set if we should generate code using type 2A insns.
34 ;; Set if we should generate code using type 2A DF insns.
35 Mask(HARD_SH2A_DOUBLE)
37 ;; Set if compiling for SH4 hardware (to be used for insn costs etc.)
40 ;; Set if we should generate code for a SH5 CPU (either ISA).
43 ;; Set if we should save all target registers.
44 Mask(SAVE_ALL_TARGET_REGS)
47 Target RejectNegative Mask(SH1) Condition(SUPPORT_SH1)
51 Target RejectNegative Mask(SH2) Condition(SUPPORT_SH2)
55 Target RejectNegative Condition(SUPPORT_SH2A)
56 Generate default double-precision SH2a-FPU code
59 Target RejectNegative Condition(SUPPORT_SH2A_NOFPU)
60 Generate SH2a FPU-less code
63 Target RejectNegative Condition(SUPPORT_SH2A_SINGLE)
64 Generate default single-precision SH2a-FPU code
67 Target RejectNegative Condition(SUPPORT_SH2A_SINGLE_ONLY)
68 Generate only single-precision SH2a-FPU code
71 Target RejectNegative Condition(SUPPORT_SH2E)
75 Target RejectNegative Mask(SH3) Condition(SUPPORT_SH3)
79 Target RejectNegative Condition(SUPPORT_SH3E)
83 Target RejectNegative Mask(SH4) Condition(SUPPORT_SH4)
87 Target RejectNegative Condition(SUPPORT_SH4)
91 Target RejectNegative Condition(SUPPORT_SH4)
94 ;; TARGET_SH4_300 indicates if we have the ST40-300 instruction set and
95 ;; pipeline - irrespective of ABI.
97 Target RejectNegative Condition(SUPPORT_SH4) Var(TARGET_SH4_300)
101 Target RejectNegative Condition(SUPPORT_SH4_NOFPU)
102 Generate SH4 FPU-less code
105 Target RejectNegative Condition(SUPPORT_SH4_NOFPU)
106 Generate SH4-100 FPU-less code
109 Target RejectNegative Condition(SUPPORT_SH4_NOFPU)
110 Generate SH4-200 FPU-less code
113 Target RejectNegative Condition(SUPPORT_SH4_NOFPU) Var(TARGET_SH4_300)
114 Generate SH4-300 FPU-less code
117 Target RejectNegative Condition(SUPPORT_SH4_NOFPU) Var(TARGET_SH4_300)
118 Generate code for SH4 340 series (MMU/FPU-less)
119 ;; passes -isa=sh4-nommu-nofpu to the assembler.
122 Target RejectNegative Condition(SUPPORT_SH4_NOFPU)
123 Generate code for SH4 400 series (MMU/FPU-less)
124 ;; passes -isa=sh4-nommu-nofpu to the assembler.
127 Target RejectNegative Condition(SUPPORT_SH4_NOFPU)
128 Generate code for SH4 500 series (FPU-less).
129 ;; passes -isa=sh4-nofpu to the assembler.
132 Target RejectNegative Condition(SUPPORT_SH4_SINGLE)
133 Generate default single-precision SH4 code
136 Target RejectNegative Condition(SUPPORT_SH4_SINGLE)
137 Generate default single-precision SH4-100 code
140 Target RejectNegative Condition(SUPPORT_SH4_SINGLE)
141 Generate default single-precision SH4-200 code
144 Target RejectNegative Condition(SUPPORT_SH4_SINGLE) Var(TARGET_SH4_300)
145 Generate default single-precision SH4-300 code
148 Target RejectNegative Condition(SUPPORT_SH4_SINGLE_ONLY)
149 Generate only single-precision SH4 code
152 Target RejectNegative Condition(SUPPORT_SH4_SINGLE_ONLY)
153 Generate only single-precision SH4-100 code
156 Target RejectNegative Condition(SUPPORT_SH4_SINGLE_ONLY)
157 Generate only single-precision SH4-200 code
160 Target RejectNegative Condition(SUPPORT_SH4_SINGLE_ONLY) Var(TARGET_SH4_300)
161 Generate only single-precision SH4-300 code
164 Target RejectNegative Mask(SH4A) Condition(SUPPORT_SH4A)
168 Target RejectNegative Condition(SUPPORT_SH4A_NOFPU)
169 Generate SH4a FPU-less code
172 Target RejectNegative Condition(SUPPORT_SH4A_SINGLE)
173 Generate default single-precision SH4a code
176 Target RejectNegative Condition(SUPPORT_SH4A_SINGLE_ONLY)
177 Generate only single-precision SH4a code
180 Target RejectNegative Condition(SUPPORT_SH4AL)
181 Generate SH4al-dsp code
184 Target RejectNegative Condition(SUPPORT_SH5_32MEDIA)
185 Generate 32-bit SHmedia code
188 Target RejectNegative Condition(SUPPORT_SH5_32MEDIA_NOFPU)
189 Generate 32-bit FPU-less SHmedia code
192 Target RejectNegative Condition(SUPPORT_SH5_64MEDIA)
193 Generate 64-bit SHmedia code
196 Target RejectNegative Condition(SUPPORT_SH5_64MEDIA_NOFPU)
197 Generate 64-bit FPU-less SHmedia code
200 Target RejectNegative Condition(SUPPORT_SH5_32MEDIA)
201 Generate SHcompact code
204 Target RejectNegative Condition(SUPPORT_SH5_32MEDIA_NOFPU)
205 Generate FPU-less SHcompact code
207 maccumulate-outgoing-args
208 Target Report Var(TARGET_ACCUMULATE_OUTGOING_ARGS) Init(1)
209 Reserve space for outgoing arguments in the function prologue
213 Does nothing. Preserved for backward compatibility.
216 Target Report RejectNegative InverseMask(LITTLE_ENDIAN)
217 Generate code in big endian mode
220 Target Report RejectNegative Mask(BIGTABLE)
221 Generate 32-bit offsets in switch tables
224 Target Report RejectNegative Mask(BITOPS)
225 Generate bit instructions
228 Target RejectNegative Joined UInteger Var(sh_branch_cost) Init(-1)
229 Cost to assume for a branch insn
232 Target Var(TARGET_ZDCBRANCH)
233 Assume that zero displacement conditional branches are fast
236 Target Var(TARGET_CBRANCHDI4)
237 Enable cbranchdi4 pattern
240 Target Var(TARGET_CMPEQDI_T)
241 Emit cmpeqdi_t pattern even when -mcbranchdi is in effect.
244 Target RejectNegative Var(TARGET_SH5_CUT2_WORKAROUND)
245 Enable SH5 cut2 workaround
248 Target Report RejectNegative Mask(ALIGN_DOUBLE)
249 Align doubles at 64-bit boundaries
252 Target RejectNegative Joined Var(sh_div_str) Init("")
253 Division strategy, one of: call, call2, fp, inv, inv:minlat, inv20u, inv20l, inv:call, inv:call2, inv:fp, call-div1, call-fp, call-table
256 Target RejectNegative Joined Var(sh_divsi3_libfunc) Init("")
257 Specify name for 32 bit signed division function
260 Target RejectNegative Mask(FMOVD)
261 Enable the use of 64-bit floating point registers in fmov instructions. See -mdalign if 64-bit alignment is required.
264 Target RejectNegative Joined Var(sh_fixed_range_str)
265 Specify range of registers to make fixed
268 Target RejectNegative Joined UInteger Var(sh_gettrcost) Init(-1)
269 Cost to assume for gettr insn
272 Target Report RejectNegative Mask(HITACHI)
273 Follow Renesas (formerly Hitachi) / SuperH calling conventions
276 Target Var(TARGET_IEEE)
277 Increase the IEEE compliance for floating-point comparisons
280 Target Report Mask(ALLOW_INDEXED_ADDRESS) Condition(SUPPORT_ANY_SH5_32MEDIA)
281 Enable the use of the indexed addressing mode for SHmedia32/SHcompact
283 minline-ic_invalidate
284 Target Report Var(TARGET_INLINE_IC_INVALIDATE)
285 inline code to invalidate instruction cache entries after setting up nested function trampolines
288 Target Report Mask(INVALID_SYMBOLS) Condition(SUPPORT_ANY_SH5)
289 Assume symbols might be invalid
292 Target Report RejectNegative Mask(DUMPISIZE)
293 Annotate assembler instructions with estimated addresses
296 Target Report RejectNegative Mask(LITTLE_ENDIAN)
297 Generate code in little endian mode
300 Target Report RejectNegative Mask(NOMACSAVE)
301 Mark MAC register as call-clobbered
303 ;; ??? This option is not useful, but is retained in case there are people
304 ;; who are still relying on it. It may be deleted in the future.
306 Target Report RejectNegative Mask(PADSTRUCT)
307 Make structs a multiple of 4 bytes (warning: ABI altered)
310 Target Report RejectNegative Mask(PREFERGOT)
311 Emit function-calls using global offset table when generating PIC
314 Target Report Mask(PT_FIXED) Condition(SUPPORT_ANY_SH5)
315 Assume pt* instructions won't trap
318 Target Report RejectNegative Mask(RELAX)
319 Shorten address references during linking
323 Follow Renesas (formerly Hitachi) / SuperH calling conventions
326 Target Undocumented Alias(matomic-model=, soft-gusa, none)
327 Deprecated. Use -matomic= instead to select the atomic model
330 Target Report RejectNegative Joined Var(sh_atomic_model_str)
331 Specify the model for atomic operations
334 Target Report RejectNegative Var(TARGET_ENABLE_TAS)
335 Use tas.b instruction for __atomic_test_and_set
338 Target RejectNegative Alias(Os)
339 Deprecated. Use -Os instead
342 Target RejectNegative Joined UInteger Var(sh_multcost) Init(-1)
343 Cost to assume for a multiply insn
346 Target Report RejectNegative Var(TARGET_USERMODE)
347 Don't generate privileged-mode only code; implies -mno-inline-ic_invalidate if the inline code would not work in user mode.
349 ;; We might want to enable this by default for TARGET_HARD_SH4, because
350 ;; zero-offset branches have zero latency. Needs some benchmarking.
352 Target Var(TARGET_PRETEND_CMOVE)
353 Pretend a branch-around-a-move is a conditional move.
356 Target Var(TARGET_FSCA)
357 Enable the use of the fsca instruction
360 Target Var(TARGET_FSRRA)
361 Enable the use of the fsrra instruction