1 //===-- X86CallingConv.td - Calling Conventions X86 32/64 --*- tablegen -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This describes the calling conventions for the X86-32 and X86-64
13 //===----------------------------------------------------------------------===//
15 /// CCIfSubtarget - Match if the current subtarget has a feature F.
16 class CCIfSubtarget<string F, CCAction A>
17 : CCIf<!strconcat("State.getTarget().getSubtarget<X86Subtarget>().", F), A>;
19 //===----------------------------------------------------------------------===//
20 // Return Value Calling Conventions
21 //===----------------------------------------------------------------------===//
23 // Return-value conventions common to all X86 CC's.
24 def RetCC_X86Common : CallingConv<[
25 // Scalar values are returned in AX first, then DX. For i8, the ABI
26 // requires the values to be in AL and AH, however this code uses AL and DL
27 // instead. This is because using AH for the second register conflicts with
28 // the way LLVM does multiple return values -- a return of {i16,i8} would end
29 // up in AX and AH, which overlap. Front-ends wishing to conform to the ABI
30 // for functions that return two i8 values are currently expected to pack the
31 // values into an i16 (which uses AX, and thus AL:AH).
33 // For code that doesn't care about the ABI, we allow returning more than two
34 // integer values in registers.
35 CCIfType<[i8] , CCAssignToReg<[AL, DL, CL]>>,
36 CCIfType<[i16], CCAssignToReg<[AX, DX, CX]>>,
37 CCIfType<[i32], CCAssignToReg<[EAX, EDX, ECX]>>,
38 CCIfType<[i64], CCAssignToReg<[RAX, RDX, RCX]>>,
40 // Vector types are returned in XMM0 and XMM1, when they fit. XMM2 and XMM3
41 // can only be used by ABI non-compliant code. If the target doesn't have XMM
42 // registers, it won't have vector types.
43 CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
44 CCAssignToReg<[XMM0,XMM1,XMM2,XMM3]>>,
46 // 256-bit vectors are returned in YMM0 and XMM1, when they fit. YMM2 and YMM3
47 // can only be used by ABI non-compliant code. This vector type is only
48 // supported while using the AVX target feature.
49 CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
50 CCAssignToReg<[YMM0,YMM1,YMM2,YMM3]>>,
52 // MMX vector types are always returned in MM0. If the target doesn't have
53 // MM0, it doesn't support these vector types.
54 CCIfType<[x86mmx], CCAssignToReg<[MM0]>>,
56 // Long double types are always returned in ST0 (even with SSE).
57 CCIfType<[f80], CCAssignToReg<[ST0, ST1]>>
60 // X86-32 C return-value convention.
61 def RetCC_X86_32_C : CallingConv<[
62 // The X86-32 calling convention returns FP values in ST0, unless marked
63 // with "inreg" (used here to distinguish one kind of reg from another,
64 // weirdly; this is really the sse-regparm calling convention) in which
65 // case they use XMM0, otherwise it is the same as the common X86 calling
67 CCIfInReg<CCIfSubtarget<"hasSSE2()",
68 CCIfType<[f32, f64], CCAssignToReg<[XMM0,XMM1,XMM2]>>>>,
69 CCIfType<[f32,f64], CCAssignToReg<[ST0, ST1]>>,
70 CCDelegateTo<RetCC_X86Common>
73 // X86-32 FastCC return-value convention.
74 def RetCC_X86_32_Fast : CallingConv<[
75 // The X86-32 fastcc returns 1, 2, or 3 FP values in XMM0-2 if the target has
77 // This can happen when a float, 2 x float, or 3 x float vector is split by
78 // target lowering, and is returned in 1-3 sse regs.
79 CCIfType<[f32], CCIfSubtarget<"hasSSE2()", CCAssignToReg<[XMM0,XMM1,XMM2]>>>,
80 CCIfType<[f64], CCIfSubtarget<"hasSSE2()", CCAssignToReg<[XMM0,XMM1,XMM2]>>>,
82 // For integers, ECX can be used as an extra return register
83 CCIfType<[i8], CCAssignToReg<[AL, DL, CL]>>,
84 CCIfType<[i16], CCAssignToReg<[AX, DX, CX]>>,
85 CCIfType<[i32], CCAssignToReg<[EAX, EDX, ECX]>>,
87 // Otherwise, it is the same as the common X86 calling convention.
88 CCDelegateTo<RetCC_X86Common>
91 // Intel_OCL_BI return-value convention.
92 def RetCC_Intel_OCL_BI : CallingConv<[
93 // Vector types are returned in XMM0,XMM1,XMMM2 and XMM3.
94 CCIfType<[f32, f64, v4i32, v2i64, v4f32, v2f64],
95 CCAssignToReg<[XMM0,XMM1,XMM2,XMM3]>>,
98 // No more than 4 registers
99 CCIfType<[v8f32, v4f64, v8i32, v4i64],
100 CCAssignToReg<[YMM0,YMM1,YMM2,YMM3]>>,
102 // i32, i64 in the standard way
103 CCDelegateTo<RetCC_X86Common>
106 // X86-32 HiPE return-value convention.
107 def RetCC_X86_32_HiPE : CallingConv<[
108 // Promote all types to i32
109 CCIfType<[i8, i16], CCPromoteToType<i32>>,
111 // Return: HP, P, VAL1, VAL2
112 CCIfType<[i32], CCAssignToReg<[ESI, EBP, EAX, EDX]>>
115 // X86-64 C return-value convention.
116 def RetCC_X86_64_C : CallingConv<[
117 // The X86-64 calling convention always returns FP values in XMM0.
118 CCIfType<[f32], CCAssignToReg<[XMM0, XMM1]>>,
119 CCIfType<[f64], CCAssignToReg<[XMM0, XMM1]>>,
121 // MMX vector types are always returned in XMM0.
122 CCIfType<[x86mmx], CCAssignToReg<[XMM0, XMM1]>>,
123 CCDelegateTo<RetCC_X86Common>
126 // X86-Win64 C return-value convention.
127 def RetCC_X86_Win64_C : CallingConv<[
128 // The X86-Win64 calling convention always returns __m64 values in RAX.
129 CCIfType<[x86mmx], CCBitConvertToType<i64>>,
131 // Otherwise, everything is the same as 'normal' X86-64 C CC.
132 CCDelegateTo<RetCC_X86_64_C>
135 // X86-64 HiPE return-value convention.
136 def RetCC_X86_64_HiPE : CallingConv<[
137 // Promote all types to i64
138 CCIfType<[i8, i16, i32], CCPromoteToType<i64>>,
140 // Return: HP, P, VAL1, VAL2
141 CCIfType<[i64], CCAssignToReg<[R15, RBP, RAX, RDX]>>
144 // This is the root return-value convention for the X86-32 backend.
145 def RetCC_X86_32 : CallingConv<[
146 // If FastCC, use RetCC_X86_32_Fast.
147 CCIfCC<"CallingConv::Fast", CCDelegateTo<RetCC_X86_32_Fast>>,
148 // If HiPE, use RetCC_X86_32_HiPE.
149 CCIfCC<"CallingConv::HiPE", CCDelegateTo<RetCC_X86_32_HiPE>>,
151 // Otherwise, use RetCC_X86_32_C.
152 CCDelegateTo<RetCC_X86_32_C>
155 // This is the root return-value convention for the X86-64 backend.
156 def RetCC_X86_64 : CallingConv<[
157 // HiPE uses RetCC_X86_64_HiPE
158 CCIfCC<"CallingConv::HiPE", CCDelegateTo<RetCC_X86_64_HiPE>>,
159 // Mingw64 and native Win64 use Win64 CC
160 CCIfSubtarget<"isTargetWin64()", CCDelegateTo<RetCC_X86_Win64_C>>,
162 // Otherwise, drop to normal X86-64 CC
163 CCDelegateTo<RetCC_X86_64_C>
166 // This is the return-value convention used for the entire X86 backend.
167 def RetCC_X86 : CallingConv<[
169 // Check if this is the Intel OpenCL built-ins calling convention
170 CCIfCC<"CallingConv::Intel_OCL_BI", CCDelegateTo<RetCC_Intel_OCL_BI>>,
172 CCIfSubtarget<"is64Bit()", CCDelegateTo<RetCC_X86_64>>,
173 CCDelegateTo<RetCC_X86_32>
176 //===----------------------------------------------------------------------===//
177 // X86-64 Argument Calling Conventions
178 //===----------------------------------------------------------------------===//
180 def CC_X86_64_C : CallingConv<[
181 // Handles byval parameters.
182 CCIfByVal<CCPassByVal<8, 8>>,
184 // Promote i8/i16 arguments to i32.
185 CCIfType<[i8, i16], CCPromoteToType<i32>>,
187 // The 'nest' parameter, if any, is passed in R10.
188 CCIfNest<CCAssignToReg<[R10]>>,
190 // The first 6 integer arguments are passed in integer registers.
191 CCIfType<[i32], CCAssignToReg<[EDI, ESI, EDX, ECX, R8D, R9D]>>,
192 CCIfType<[i64], CCAssignToReg<[RDI, RSI, RDX, RCX, R8 , R9 ]>>,
194 // The first 8 MMX vector arguments are passed in XMM registers on Darwin.
196 CCIfSubtarget<"isTargetDarwin()",
197 CCIfSubtarget<"hasSSE2()",
198 CCPromoteToType<v2i64>>>>,
200 // The first 8 FP/Vector arguments are passed in XMM registers.
201 CCIfType<[f32, f64, v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
202 CCIfSubtarget<"hasSSE1()",
203 CCAssignToReg<[XMM0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7]>>>,
205 // The first 8 256-bit vector arguments are passed in YMM registers, unless
206 // this is a vararg function.
207 // FIXME: This isn't precisely correct; the x86-64 ABI document says that
208 // fixed arguments to vararg functions are supposed to be passed in
209 // registers. Actually modeling that would be a lot of work, though.
210 CCIfNotVarArg<CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
211 CCIfSubtarget<"hasAVX()",
212 CCAssignToReg<[YMM0, YMM1, YMM2, YMM3,
213 YMM4, YMM5, YMM6, YMM7]>>>>,
215 // Integer/FP values get stored in stack slots that are 8 bytes in size and
216 // 8-byte aligned if there are no more registers to hold them.
217 CCIfType<[i32, i64, f32, f64], CCAssignToStack<8, 8>>,
219 // Long doubles get stack slots whose size and alignment depends on the
221 CCIfType<[f80], CCAssignToStack<0, 0>>,
223 // Vectors get 16-byte stack slots that are 16-byte aligned.
224 CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,
226 // 256-bit vectors get 32-byte stack slots that are 32-byte aligned.
227 CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
228 CCAssignToStack<32, 32>>
231 // Calling convention used on Win64
232 def CC_X86_Win64_C : CallingConv<[
233 // FIXME: Handle byval stuff.
234 // FIXME: Handle varargs.
236 // Promote i8/i16 arguments to i32.
237 CCIfType<[i8, i16], CCPromoteToType<i32>>,
239 // The 'nest' parameter, if any, is passed in R10.
240 CCIfNest<CCAssignToReg<[R10]>>,
242 // 128 bit vectors are passed by pointer
243 CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCPassIndirect<i64>>,
246 // 256 bit vectors are passed by pointer
247 CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64], CCPassIndirect<i64>>,
249 // The first 4 MMX vector arguments are passed in GPRs.
250 CCIfType<[x86mmx], CCBitConvertToType<i64>>,
252 // The first 4 integer arguments are passed in integer registers.
253 CCIfType<[i32], CCAssignToRegWithShadow<[ECX , EDX , R8D , R9D ],
254 [XMM0, XMM1, XMM2, XMM3]>>,
256 // Do not pass the sret argument in RCX, the Win64 thiscall calling
257 // convention requires "this" to be passed in RCX.
258 CCIfCC<"CallingConv::X86_ThisCall",
259 CCIfSRet<CCIfType<[i64], CCAssignToRegWithShadow<[RDX , R8 , R9 ],
260 [XMM1, XMM2, XMM3]>>>>,
262 CCIfType<[i64], CCAssignToRegWithShadow<[RCX , RDX , R8 , R9 ],
263 [XMM0, XMM1, XMM2, XMM3]>>,
265 // The first 4 FP/Vector arguments are passed in XMM registers.
266 CCIfType<[f32, f64, v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
267 CCAssignToRegWithShadow<[XMM0, XMM1, XMM2, XMM3],
268 [RCX , RDX , R8 , R9 ]>>,
270 // Integer/FP values get stored in stack slots that are 8 bytes in size and
271 // 8-byte aligned if there are no more registers to hold them.
272 CCIfType<[i32, i64, f32, f64], CCAssignToStack<8, 8>>,
274 // Long doubles get stack slots whose size and alignment depends on the
276 CCIfType<[f80], CCAssignToStack<0, 0>>
279 def CC_X86_64_GHC : CallingConv<[
280 // Promote i8/i16/i32 arguments to i64.
281 CCIfType<[i8, i16, i32], CCPromoteToType<i64>>,
283 // Pass in STG registers: Base, Sp, Hp, R1, R2, R3, R4, R5, R6, SpLim
285 CCAssignToReg<[R13, RBP, R12, RBX, R14, RSI, RDI, R8, R9, R15]>>,
287 // Pass in STG registers: F1, F2, F3, F4, D1, D2
288 CCIfType<[f32, f64, v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
289 CCIfSubtarget<"hasSSE1()",
290 CCAssignToReg<[XMM1, XMM2, XMM3, XMM4, XMM5, XMM6]>>>
293 def CC_X86_64_HiPE : CallingConv<[
294 // Promote i8/i16/i32 arguments to i64.
295 CCIfType<[i8, i16, i32], CCPromoteToType<i64>>,
297 // Pass in VM's registers: HP, P, ARG0, ARG1, ARG2, ARG3
298 CCIfType<[i64], CCAssignToReg<[R15, RBP, RSI, RDX, RCX, R8]>>,
300 // Integer/FP values get stored in stack slots that are 8 bytes in size and
301 // 8-byte aligned if there are no more registers to hold them.
302 CCIfType<[i32, i64, f32, f64], CCAssignToStack<8, 8>>
305 //===----------------------------------------------------------------------===//
306 // X86 C Calling Convention
307 //===----------------------------------------------------------------------===//
309 /// CC_X86_32_Common - In all X86-32 calling conventions, extra integers and FP
310 /// values are spilled on the stack, and the first 4 vector values go in XMM
312 def CC_X86_32_Common : CallingConv<[
313 // Handles byval parameters.
314 CCIfByVal<CCPassByVal<4, 4>>,
316 // The first 3 float or double arguments, if marked 'inreg' and if the call
317 // is not a vararg call and if SSE2 is available, are passed in SSE registers.
318 CCIfNotVarArg<CCIfInReg<CCIfType<[f32,f64],
319 CCIfSubtarget<"hasSSE2()",
320 CCAssignToReg<[XMM0,XMM1,XMM2]>>>>>,
322 // The first 3 __m64 vector arguments are passed in mmx registers if the
323 // call is not a vararg call.
324 CCIfNotVarArg<CCIfType<[x86mmx],
325 CCAssignToReg<[MM0, MM1, MM2]>>>,
327 // Integer/Float values get stored in stack slots that are 4 bytes in
328 // size and 4-byte aligned.
329 CCIfType<[i32, f32], CCAssignToStack<4, 4>>,
331 // Doubles get 8-byte slots that are 4-byte aligned.
332 CCIfType<[f64], CCAssignToStack<8, 4>>,
334 // Long doubles get slots whose size depends on the subtarget.
335 CCIfType<[f80], CCAssignToStack<0, 4>>,
337 // The first 4 SSE vector arguments are passed in XMM registers.
338 CCIfNotVarArg<CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64],
339 CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>>,
341 // The first 4 AVX 256-bit vector arguments are passed in YMM registers.
342 CCIfNotVarArg<CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
343 CCIfSubtarget<"hasAVX()",
344 CCAssignToReg<[YMM0, YMM1, YMM2, YMM3]>>>>,
346 // Other SSE vectors get 16-byte stack slots that are 16-byte aligned.
347 CCIfType<[v16i8, v8i16, v4i32, v2i64, v4f32, v2f64], CCAssignToStack<16, 16>>,
349 // 256-bit AVX vectors get 32-byte stack slots that are 32-byte aligned.
350 CCIfType<[v32i8, v16i16, v8i32, v4i64, v8f32, v4f64],
351 CCAssignToStack<32, 32>>,
353 // __m64 vectors get 8-byte stack slots that are 4-byte aligned. They are
354 // passed in the parameter area.
355 CCIfType<[x86mmx], CCAssignToStack<8, 4>>]>;
357 def CC_X86_32_C : CallingConv<[
358 // Promote i8/i16 arguments to i32.
359 CCIfType<[i8, i16], CCPromoteToType<i32>>,
361 // The 'nest' parameter, if any, is passed in ECX.
362 CCIfNest<CCAssignToReg<[ECX]>>,
364 // The first 3 integer arguments, if marked 'inreg' and if the call is not
365 // a vararg call, are passed in integer registers.
366 CCIfNotVarArg<CCIfInReg<CCIfType<[i32], CCAssignToReg<[EAX, EDX, ECX]>>>>,
368 // Otherwise, same as everything else.
369 CCDelegateTo<CC_X86_32_Common>
372 def CC_X86_32_FastCall : CallingConv<[
373 // Promote i8/i16 arguments to i32.
374 CCIfType<[i8, i16], CCPromoteToType<i32>>,
376 // The 'nest' parameter, if any, is passed in EAX.
377 CCIfNest<CCAssignToReg<[EAX]>>,
379 // The first 2 integer arguments are passed in ECX/EDX
380 CCIfInReg<CCIfType<[i32], CCAssignToReg<[ECX, EDX]>>>,
382 // Otherwise, same as everything else.
383 CCDelegateTo<CC_X86_32_Common>
386 def CC_X86_32_ThisCall : CallingConv<[
387 // Promote i8/i16 arguments to i32.
388 CCIfType<[i8, i16], CCPromoteToType<i32>>,
390 // Pass sret arguments indirectly through EAX
391 CCIfSRet<CCAssignToReg<[EAX]>>,
393 // The first integer argument is passed in ECX
394 CCIfType<[i32], CCAssignToReg<[ECX]>>,
396 // Otherwise, same as everything else.
397 CCDelegateTo<CC_X86_32_Common>
400 def CC_X86_32_FastCC : CallingConv<[
401 // Handles byval parameters. Note that we can't rely on the delegation
402 // to CC_X86_32_Common for this because that happens after code that
403 // puts arguments in registers.
404 CCIfByVal<CCPassByVal<4, 4>>,
406 // Promote i8/i16 arguments to i32.
407 CCIfType<[i8, i16], CCPromoteToType<i32>>,
409 // The 'nest' parameter, if any, is passed in EAX.
410 CCIfNest<CCAssignToReg<[EAX]>>,
412 // The first 2 integer arguments are passed in ECX/EDX
413 CCIfType<[i32], CCAssignToReg<[ECX, EDX]>>,
415 // The first 3 float or double arguments, if the call is not a vararg
416 // call and if SSE2 is available, are passed in SSE registers.
417 CCIfNotVarArg<CCIfType<[f32,f64],
418 CCIfSubtarget<"hasSSE2()",
419 CCAssignToReg<[XMM0,XMM1,XMM2]>>>>,
421 // Doubles get 8-byte slots that are 8-byte aligned.
422 CCIfType<[f64], CCAssignToStack<8, 8>>,
424 // Otherwise, same as everything else.
425 CCDelegateTo<CC_X86_32_Common>
428 def CC_X86_32_GHC : CallingConv<[
429 // Promote i8/i16 arguments to i32.
430 CCIfType<[i8, i16], CCPromoteToType<i32>>,
432 // Pass in STG registers: Base, Sp, Hp, R1
433 CCIfType<[i32], CCAssignToReg<[EBX, EBP, EDI, ESI]>>
436 def CC_X86_32_HiPE : CallingConv<[
437 // Promote i8/i16 arguments to i32.
438 CCIfType<[i8, i16], CCPromoteToType<i32>>,
440 // Pass in VM's registers: HP, P, ARG0, ARG1, ARG2
441 CCIfType<[i32], CCAssignToReg<[ESI, EBP, EAX, EDX, ECX]>>,
443 // Integer/Float values get stored in stack slots that are 4 bytes in
444 // size and 4-byte aligned.
445 CCIfType<[i32, f32], CCAssignToStack<4, 4>>
448 // X86-64 Intel OpenCL built-ins calling convention.
449 def CC_Intel_OCL_BI : CallingConv<[
451 CCIfType<[i32], CCIfSubtarget<"isTargetWin64()", CCAssignToReg<[ECX, EDX, R8D, R9D]>>>,
452 CCIfType<[i64], CCIfSubtarget<"isTargetWin64()", CCAssignToReg<[RCX, RDX, R8, R9 ]>>>,
454 CCIfType<[i32], CCIfSubtarget<"is64Bit()", CCAssignToReg<[EDI, ESI, EDX, ECX]>>>,
455 CCIfType<[i64], CCIfSubtarget<"is64Bit()", CCAssignToReg<[RDI, RSI, RDX, RCX]>>>,
457 CCIfType<[i32], CCAssignToStack<4, 4>>,
459 // The SSE vector arguments are passed in XMM registers.
460 CCIfType<[f32, f64, v4i32, v2i64, v4f32, v2f64],
461 CCAssignToReg<[XMM0, XMM1, XMM2, XMM3]>>,
463 // The 256-bit vector arguments are passed in YMM registers.
464 CCIfType<[v8f32, v4f64, v8i32, v4i64],
465 CCAssignToReg<[YMM0, YMM1, YMM2, YMM3]>>,
467 CCIfSubtarget<"isTargetWin64()", CCDelegateTo<CC_X86_Win64_C>>,
468 CCIfSubtarget<"is64Bit()", CCDelegateTo<CC_X86_64_C>>,
469 CCDelegateTo<CC_X86_32_C>
472 //===----------------------------------------------------------------------===//
473 // X86 Root Argument Calling Conventions
474 //===----------------------------------------------------------------------===//
476 // This is the root argument convention for the X86-32 backend.
477 def CC_X86_32 : CallingConv<[
478 CCIfCC<"CallingConv::X86_FastCall", CCDelegateTo<CC_X86_32_FastCall>>,
479 CCIfCC<"CallingConv::X86_ThisCall", CCDelegateTo<CC_X86_32_ThisCall>>,
480 CCIfCC<"CallingConv::Fast", CCDelegateTo<CC_X86_32_FastCC>>,
481 CCIfCC<"CallingConv::GHC", CCDelegateTo<CC_X86_32_GHC>>,
482 CCIfCC<"CallingConv::HiPE", CCDelegateTo<CC_X86_32_HiPE>>,
484 // Otherwise, drop to normal X86-32 CC
485 CCDelegateTo<CC_X86_32_C>
488 // This is the root argument convention for the X86-64 backend.
489 def CC_X86_64 : CallingConv<[
490 CCIfCC<"CallingConv::GHC", CCDelegateTo<CC_X86_64_GHC>>,
491 CCIfCC<"CallingConv::HiPE", CCDelegateTo<CC_X86_64_HiPE>>,
493 // Mingw64 and native Win64 use Win64 CC
494 CCIfSubtarget<"isTargetWin64()", CCDelegateTo<CC_X86_Win64_C>>,
496 // Otherwise, drop to normal X86-64 CC
497 CCDelegateTo<CC_X86_64_C>
500 // This is the argument convention used for the entire X86 backend.
501 def CC_X86 : CallingConv<[
502 CCIfCC<"CallingConv::Intel_OCL_BI", CCDelegateTo<CC_Intel_OCL_BI>>,
503 CCIfSubtarget<"is64Bit()", CCDelegateTo<CC_X86_64>>,
504 CCDelegateTo<CC_X86_32>
507 //===----------------------------------------------------------------------===//
508 // Callee-saved Registers.
509 //===----------------------------------------------------------------------===//
511 def CSR_NoRegs : CalleeSavedRegs<(add)>;
513 def CSR_32 : CalleeSavedRegs<(add ESI, EDI, EBX, EBP)>;
514 def CSR_64 : CalleeSavedRegs<(add RBX, R12, R13, R14, R15, RBP)>;
516 def CSR_32EHRet : CalleeSavedRegs<(add EAX, EDX, CSR_32)>;
517 def CSR_64EHRet : CalleeSavedRegs<(add RAX, RDX, CSR_64)>;
519 def CSR_Win64 : CalleeSavedRegs<(add RBX, RBP, RDI, RSI, R12, R13, R14, R15,
520 (sequence "XMM%u", 6, 15))>;
523 // Standard C + YMM6-15
524 def CSR_Win64_Intel_OCL_BI_AVX : CalleeSavedRegs<(add RBX, RBP, RDI, RSI, R12,
526 (sequence "YMM%u", 6, 15))>;
528 //Standard C + XMM 8-15
529 def CSR_64_Intel_OCL_BI : CalleeSavedRegs<(add CSR_64,
530 (sequence "XMM%u", 8, 15))>;
532 //Standard C + YMM 8-15
533 def CSR_64_Intel_OCL_BI_AVX : CalleeSavedRegs<(add CSR_64,
534 (sequence "YMM%u", 8, 15))>;