1 //===-- MipsInstrFPU.td - Mips FPU Instruction Information -*- 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 file describes the Mips FPU instruction set.
12 //===----------------------------------------------------------------------===//
14 //===----------------------------------------------------------------------===//
15 // Floating Point Instructions
16 // ------------------------
18 // - 32 64-bit registers (default mode)
19 // - 16 even 32-bit registers (32-bit compatible mode) for
20 // single and double access.
22 // - 16 even 32-bit registers - single and double (aliased)
23 // - 32 32-bit registers (within single-only mode)
24 //===----------------------------------------------------------------------===//
26 // Floating Point Compare and Branch
27 def SDT_MipsFPBrcond : SDTypeProfile<0, 2, [SDTCisInt<0>,
28 SDTCisVT<1, OtherVT>]>;
29 def SDT_MipsFPCmp : SDTypeProfile<0, 3, [SDTCisSameAs<0, 1>, SDTCisFP<1>,
31 def SDT_MipsCMovFP : SDTypeProfile<1, 2, [SDTCisSameAs<0, 1>,
33 def SDT_MipsBuildPairF64 : SDTypeProfile<1, 2, [SDTCisVT<0, f64>,
36 def SDT_MipsExtractElementF64 : SDTypeProfile<1, 2, [SDTCisVT<0, i32>,
40 def MipsFPCmp : SDNode<"MipsISD::FPCmp", SDT_MipsFPCmp, [SDNPOutGlue]>;
41 def MipsCMovFP_T : SDNode<"MipsISD::CMovFP_T", SDT_MipsCMovFP, [SDNPInGlue]>;
42 def MipsCMovFP_F : SDNode<"MipsISD::CMovFP_F", SDT_MipsCMovFP, [SDNPInGlue]>;
43 def MipsFPBrcond : SDNode<"MipsISD::FPBrcond", SDT_MipsFPBrcond,
44 [SDNPHasChain, SDNPOptInGlue]>;
45 def MipsBuildPairF64 : SDNode<"MipsISD::BuildPairF64", SDT_MipsBuildPairF64>;
46 def MipsExtractElementF64 : SDNode<"MipsISD::ExtractElementF64",
47 SDT_MipsExtractElementF64>;
49 // Operand for printing out a condition code.
50 let PrintMethod = "printFCCOperand", DecoderMethod = "DecodeCondCode" in
51 def condcode : Operand<i32>;
53 //===----------------------------------------------------------------------===//
54 // Feature predicates.
55 //===----------------------------------------------------------------------===//
57 def IsFP64bit : Predicate<"Subtarget.isFP64bit()">,
58 AssemblerPredicate<"FeatureFP64Bit">;
59 def NotFP64bit : Predicate<"!Subtarget.isFP64bit()">,
60 AssemblerPredicate<"!FeatureFP64Bit">;
61 def IsSingleFloat : Predicate<"Subtarget.isSingleFloat()">,
62 AssemblerPredicate<"FeatureSingleFloat">;
63 def IsNotSingleFloat : Predicate<"!Subtarget.isSingleFloat()">,
64 AssemblerPredicate<"!FeatureSingleFloat">;
66 // FP immediate patterns.
67 def fpimm0 : PatLeaf<(fpimm), [{
68 return N->isExactlyValue(+0.0);
71 def fpimm0neg : PatLeaf<(fpimm), [{
72 return N->isExactlyValue(-0.0);
75 //===----------------------------------------------------------------------===//
76 // Instruction Class Templates
78 // A set of multiclasses is used to address the register usage.
80 // S32 - single precision in 16 32bit even fp registers
81 // single precision in 32 32bit fp registers in SingleOnly mode
82 // S64 - single precision in 32 64bit fp registers (In64BitMode)
83 // D32 - double precision in 16 32bit even fp registers
84 // D64 - double precision in 32 64bit fp registers (In64BitMode)
86 // Only S32 and D32 are supported right now.
87 //===----------------------------------------------------------------------===//
90 let DecoderMethod = "DecodeFMem" in {
91 class FPLoad<bits<6> op, string opstr, RegisterClass RC, Operand MemOpnd>:
92 FMem<op, (outs RC:$ft), (ins MemOpnd:$addr),
93 !strconcat(opstr, "\t$ft, $addr"), [(set RC:$ft, (load addr:$addr))],
97 class FPStore<bits<6> op, string opstr, RegisterClass RC, Operand MemOpnd>:
98 FMem<op, (outs), (ins RC:$ft, MemOpnd:$addr),
99 !strconcat(opstr, "\t$ft, $addr"), [(store RC:$ft, addr:$addr)],
103 class FPIdxLoad<bits<6> funct, string opstr, RegisterClass DRC,
104 RegisterClass PRC, SDPatternOperator FOp = null_frag>:
105 FFMemIdx<funct, (outs DRC:$fd), (ins PRC:$base, PRC:$index),
106 !strconcat(opstr, "\t$fd, ${index}(${base})"),
107 [(set DRC:$fd, (FOp (add PRC:$base, PRC:$index)))]> {
112 class FPIdxStore<bits<6> funct, string opstr, RegisterClass DRC,
113 RegisterClass PRC, SDPatternOperator FOp= null_frag>:
114 FFMemIdx<funct, (outs), (ins DRC:$fs, PRC:$base, PRC:$index),
115 !strconcat(opstr, "\t$fs, ${index}(${base})"),
116 [(FOp DRC:$fs, (add PRC:$base, PRC:$index))]> {
120 // Instructions that convert an FP value to 32-bit fixed point.
121 multiclass FFR1_W_M<bits<6> funct, string opstr> {
122 def _D32 : FFR1<funct, 17, opstr, FGR32, AFGR64>,
123 Requires<[NotFP64bit, HasStdEnc]>;
124 def _D64 : FFR1<funct, 17, opstr, FGR32, FGR64>,
125 Requires<[IsFP64bit, HasStdEnc]> {
126 let DecoderNamespace = "Mips64";
130 // FP-to-FP conversion instructions.
131 multiclass FFR1P_M<bits<6> funct, string opstr, SDNode OpNode> {
132 def _D32 : FFR1P<funct, 17, opstr, AFGR64, AFGR64, OpNode>,
133 Requires<[NotFP64bit, HasStdEnc]>;
134 def _D64 : FFR1P<funct, 17, opstr, FGR64, FGR64, OpNode>,
135 Requires<[IsFP64bit, HasStdEnc]> {
136 let DecoderNamespace = "Mips64";
140 multiclass FFR2P_M<bits<6> funct, string opstr, SDNode OpNode, bit isComm = 0> {
141 let isCommutable = isComm in {
142 def _D32 : FFR2P<funct, 17, opstr, AFGR64, OpNode>,
143 Requires<[NotFP64bit, HasStdEnc]>;
144 def _D64 : FFR2P<funct, 17, opstr, FGR64, OpNode>,
145 Requires<[IsFP64bit, HasStdEnc]> {
146 let DecoderNamespace = "Mips64";
151 // FP madd/msub/nmadd/nmsub instruction classes.
152 class FMADDSUB<bits<3> funct, bits<3> fmt, string opstr,
153 SDNode OpNode, RegisterClass RC> :
154 FFMADDSUB<funct, fmt, (outs RC:$fd), (ins RC:$fr, RC:$fs, RC:$ft),
155 !strconcat(opstr, "\t$fd, $fr, $fs, $ft"),
156 [(set RC:$fd, (OpNode (fmul RC:$fs, RC:$ft), RC:$fr))]>;
158 class FNMADDSUB<bits<3> funct, bits<3> fmt, string opstr,
159 SDNode OpNode, RegisterClass RC> :
160 FFMADDSUB<funct, fmt, (outs RC:$fd), (ins RC:$fr, RC:$fs, RC:$ft),
161 !strconcat(opstr, "\t$fd, $fr, $fs, $ft"),
162 [(set RC:$fd, (fsub fpimm0, (OpNode (fmul RC:$fs, RC:$ft), RC:$fr)))]>;
164 //===----------------------------------------------------------------------===//
165 // Floating Point Instructions
166 //===----------------------------------------------------------------------===//
167 def ROUND_W_S : FFR1<0xc, 16, "round.w.s", FGR32, FGR32>;
168 def TRUNC_W_S : FFR1<0xd, 16, "trunc.w.s", FGR32, FGR32>;
169 def CEIL_W_S : FFR1<0xe, 16, "ceil.w.s", FGR32, FGR32>;
170 def FLOOR_W_S : FFR1<0xf, 16, "floor.w.s", FGR32, FGR32>;
171 def CVT_W_S : FFR1<0x24, 16, "cvt.w.s", FGR32, FGR32>, NeverHasSideEffects;
173 defm ROUND_W : FFR1_W_M<0xc, "round.w.d">;
174 defm TRUNC_W : FFR1_W_M<0xd, "trunc.w.d">;
175 defm CEIL_W : FFR1_W_M<0xe, "ceil.w.d">;
176 defm FLOOR_W : FFR1_W_M<0xf, "floor.w.d">;
177 defm CVT_W : FFR1_W_M<0x24, "cvt.w.d">, NeverHasSideEffects;
179 let Predicates = [IsFP64bit, HasStdEnc], DecoderNamespace = "Mips64" in {
180 def ROUND_L_S : FFR1<0x8, 16, "round.l.s", FGR64, FGR32>;
181 def ROUND_L_D64 : FFR1<0x8, 17, "round.l.d", FGR64, FGR64>;
182 def TRUNC_L_S : FFR1<0x9, 16, "trunc.l.s", FGR64, FGR32>;
183 def TRUNC_L_D64 : FFR1<0x9, 17, "trunc.l.d", FGR64, FGR64>;
184 def CEIL_L_S : FFR1<0xa, 16, "ceil.l.s", FGR64, FGR32>;
185 def CEIL_L_D64 : FFR1<0xa, 17, "ceil.l.d", FGR64, FGR64>;
186 def FLOOR_L_S : FFR1<0xb, 16, "floor.l.s", FGR64, FGR32>;
187 def FLOOR_L_D64 : FFR1<0xb, 17, "floor.l.d", FGR64, FGR64>;
190 def CVT_S_W : FFR1<0x20, 20, "cvt.s.w", FGR32, FGR32>, NeverHasSideEffects;
191 def CVT_L_S : FFR1<0x25, 16, "cvt.l.s", FGR64, FGR32>, NeverHasSideEffects;
192 def CVT_L_D64: FFR1<0x25, 17, "cvt.l.d", FGR64, FGR64>, NeverHasSideEffects;
194 let Predicates = [NotFP64bit, HasStdEnc], neverHasSideEffects = 1 in {
195 def CVT_S_D32 : FFR1<0x20, 17, "cvt.s.d", FGR32, AFGR64>;
196 def CVT_D32_W : FFR1<0x21, 20, "cvt.d.w", AFGR64, FGR32>;
197 def CVT_D32_S : FFR1<0x21, 16, "cvt.d.s", AFGR64, FGR32>;
200 let Predicates = [IsFP64bit, HasStdEnc], DecoderNamespace = "Mips64",
201 neverHasSideEffects = 1 in {
202 def CVT_S_D64 : FFR1<0x20, 17, "cvt.s.d", FGR32, FGR64>;
203 def CVT_S_L : FFR1<0x20, 21, "cvt.s.l", FGR32, FGR64>;
204 def CVT_D64_W : FFR1<0x21, 20, "cvt.d.w", FGR64, FGR32>;
205 def CVT_D64_S : FFR1<0x21, 16, "cvt.d.s", FGR64, FGR32>;
206 def CVT_D64_L : FFR1<0x21, 21, "cvt.d.l", FGR64, FGR64>;
209 let Predicates = [NoNaNsFPMath, HasStdEnc] in {
210 def FABS_S : FFR1P<0x5, 16, "abs.s", FGR32, FGR32, fabs>;
211 def FNEG_S : FFR1P<0x7, 16, "neg.s", FGR32, FGR32, fneg>;
212 defm FABS : FFR1P_M<0x5, "abs.d", fabs>;
213 defm FNEG : FFR1P_M<0x7, "neg.d", fneg>;
216 def FSQRT_S : FFR1P<0x4, 16, "sqrt.s", FGR32, FGR32, fsqrt>;
217 defm FSQRT : FFR1P_M<0x4, "sqrt.d", fsqrt>;
219 // The odd-numbered registers are only referenced when doing loads,
220 // stores, and moves between floating-point and integer registers.
221 // When defining instructions, we reference all 32-bit registers,
222 // regardless of register aliasing.
224 class FFRGPR<bits<5> _fmt, dag outs, dag ins, string asmstr, list<dag> pattern>:
225 FFR<0x11, 0x0, _fmt, outs, ins, asmstr, pattern> {
231 /// Move Control Registers From/To CPU Registers
232 def CFC1 : FFRGPR<0x2, (outs CPURegs:$rt), (ins CCR:$fs),
233 "cfc1\t$rt, $fs", []>;
235 def CTC1 : FFRGPR<0x6, (outs CCR:$fs), (ins CPURegs:$rt),
236 "ctc1\t$rt, $fs", []>;
238 def MFC1 : FFRGPR<0x00, (outs CPURegs:$rt), (ins FGR32:$fs),
240 [(set CPURegs:$rt, (bitconvert FGR32:$fs))]>;
242 def MTC1 : FFRGPR<0x04, (outs FGR32:$fs), (ins CPURegs:$rt),
244 [(set FGR32:$fs, (bitconvert CPURegs:$rt))]>;
246 def DMFC1 : FFRGPR<0x01, (outs CPU64Regs:$rt), (ins FGR64:$fs),
248 [(set CPU64Regs:$rt, (bitconvert FGR64:$fs))]>;
250 def DMTC1 : FFRGPR<0x05, (outs FGR64:$fs), (ins CPU64Regs:$rt),
252 [(set FGR64:$fs, (bitconvert CPU64Regs:$rt))]>;
254 def FMOV_S : FFR1<0x6, 16, "mov.s", FGR32, FGR32>;
255 def FMOV_D32 : FFR1<0x6, 17, "mov.d", AFGR64, AFGR64>,
256 Requires<[NotFP64bit, HasStdEnc]>;
257 def FMOV_D64 : FFR1<0x6, 17, "mov.d", FGR64, FGR64>,
258 Requires<[IsFP64bit, HasStdEnc]> {
259 let DecoderNamespace = "Mips64";
262 /// Floating Point Memory Instructions
263 let Predicates = [IsN64, HasStdEnc], DecoderNamespace = "Mips64" in {
264 def LWC1_P8 : FPLoad<0x31, "lwc1", FGR32, mem64>;
265 def SWC1_P8 : FPStore<0x39, "swc1", FGR32, mem64>;
266 def LDC164_P8 : FPLoad<0x35, "ldc1", FGR64, mem64> {
267 let isCodeGenOnly =1;
269 def SDC164_P8 : FPStore<0x3d, "sdc1", FGR64, mem64> {
270 let isCodeGenOnly =1;
274 let Predicates = [NotN64, HasStdEnc] in {
275 def LWC1 : FPLoad<0x31, "lwc1", FGR32, mem>;
276 def SWC1 : FPStore<0x39, "swc1", FGR32, mem>;
279 let Predicates = [NotN64, HasMips64, HasStdEnc],
280 DecoderNamespace = "Mips64" in {
281 def LDC164 : FPLoad<0x35, "ldc1", FGR64, mem>;
282 def SDC164 : FPStore<0x3d, "sdc1", FGR64, mem>;
285 let Predicates = [NotN64, NotMips64, HasStdEnc] in {
286 def LDC1 : FPLoad<0x35, "ldc1", AFGR64, mem>;
287 def SDC1 : FPStore<0x3d, "sdc1", AFGR64, mem>;
290 // Indexed loads and stores.
291 let Predicates = [HasFPIdx, HasStdEnc] in {
292 def LWXC1 : FPIdxLoad<0x0, "lwxc1", FGR32, CPURegs, load>;
293 def SWXC1 : FPIdxStore<0x8, "swxc1", FGR32, CPURegs, store>;
296 let Predicates = [HasMips32r2, NotMips64, HasStdEnc] in {
297 def LDXC1 : FPIdxLoad<0x1, "ldxc1", AFGR64, CPURegs, load>;
298 def SDXC1 : FPIdxStore<0x9, "sdxc1", AFGR64, CPURegs, store>;
301 let Predicates = [HasMips64, NotN64, HasStdEnc], DecoderNamespace="Mips64" in {
302 def LDXC164 : FPIdxLoad<0x1, "ldxc1", FGR64, CPURegs, load>;
303 def SDXC164 : FPIdxStore<0x9, "sdxc1", FGR64, CPURegs, store>;
307 let Predicates = [IsN64, HasStdEnc], isCodeGenOnly=1 in {
308 def LWXC1_P8 : FPIdxLoad<0x0, "lwxc1", FGR32, CPU64Regs, load>;
309 def LDXC164_P8 : FPIdxLoad<0x1, "ldxc1", FGR64, CPU64Regs, load>;
310 def SWXC1_P8 : FPIdxStore<0x8, "swxc1", FGR32, CPU64Regs, store>;
311 def SDXC164_P8 : FPIdxStore<0x9, "sdxc1", FGR64, CPU64Regs, store>;
314 // Load/store doubleword indexed unaligned.
315 let Predicates = [NotMips64, HasStdEnc] in {
316 def LUXC1 : FPIdxLoad<0x5, "luxc1", AFGR64, CPURegs>;
317 def SUXC1 : FPIdxStore<0xd, "suxc1", AFGR64, CPURegs>;
320 let Predicates = [HasMips64, HasStdEnc],
321 DecoderNamespace="Mips64" in {
322 def LUXC164 : FPIdxLoad<0x5, "luxc1", FGR64, CPURegs>;
323 def SUXC164 : FPIdxStore<0xd, "suxc1", FGR64, CPURegs>;
326 /// Floating-point Aritmetic
327 def FADD_S : FFR2P<0x00, 16, "add.s", FGR32, fadd>, IsCommutable;
328 defm FADD : FFR2P_M<0x00, "add.d", fadd, 1>;
329 def FDIV_S : FFR2P<0x03, 16, "div.s", FGR32, fdiv>;
330 defm FDIV : FFR2P_M<0x03, "div.d", fdiv>;
331 def FMUL_S : FFR2P<0x02, 16, "mul.s", FGR32, fmul>, IsCommutable;
332 defm FMUL : FFR2P_M<0x02, "mul.d", fmul, 1>;
333 def FSUB_S : FFR2P<0x01, 16, "sub.s", FGR32, fsub>;
334 defm FSUB : FFR2P_M<0x01, "sub.d", fsub>;
336 let Predicates = [HasMips32r2, HasStdEnc] in {
337 def MADD_S : FMADDSUB<0x4, 0, "madd.s", fadd, FGR32>;
338 def MSUB_S : FMADDSUB<0x5, 0, "msub.s", fsub, FGR32>;
341 let Predicates = [HasMips32r2, NoNaNsFPMath, HasStdEnc] in {
342 def NMADD_S : FNMADDSUB<0x6, 0, "nmadd.s", fadd, FGR32>;
343 def NMSUB_S : FNMADDSUB<0x7, 0, "nmsub.s", fsub, FGR32>;
346 let Predicates = [HasMips32r2, NotFP64bit, HasStdEnc] in {
347 def MADD_D32 : FMADDSUB<0x4, 1, "madd.d", fadd, AFGR64>;
348 def MSUB_D32 : FMADDSUB<0x5, 1, "msub.d", fsub, AFGR64>;
351 let Predicates = [HasMips32r2, NotFP64bit, NoNaNsFPMath, HasStdEnc] in {
352 def NMADD_D32 : FNMADDSUB<0x6, 1, "nmadd.d", fadd, AFGR64>;
353 def NMSUB_D32 : FNMADDSUB<0x7, 1, "nmsub.d", fsub, AFGR64>;
356 let Predicates = [HasMips32r2, IsFP64bit, HasStdEnc], isCodeGenOnly=1 in {
357 def MADD_D64 : FMADDSUB<0x4, 1, "madd.d", fadd, FGR64>;
358 def MSUB_D64 : FMADDSUB<0x5, 1, "msub.d", fsub, FGR64>;
361 let Predicates = [HasMips32r2, IsFP64bit, NoNaNsFPMath, HasStdEnc],
363 def NMADD_D64 : FNMADDSUB<0x6, 1, "nmadd.d", fadd, FGR64>;
364 def NMSUB_D64 : FNMADDSUB<0x7, 1, "nmsub.d", fsub, FGR64>;
367 //===----------------------------------------------------------------------===//
368 // Floating Point Branch Codes
369 //===----------------------------------------------------------------------===//
370 // Mips branch codes. These correspond to condcode in MipsInstrInfo.h.
371 // They must be kept in synch.
372 def MIPS_BRANCH_F : PatLeaf<(i32 0)>;
373 def MIPS_BRANCH_T : PatLeaf<(i32 1)>;
375 /// Floating Point Branch of False/True (Likely)
376 let isBranch=1, isTerminator=1, hasDelaySlot=1, base=0x8, Uses=[FCR31] in
377 class FBRANCH<bits<1> nd, bits<1> tf, PatLeaf op, string asmstr> :
378 FFI<0x11, (outs), (ins brtarget:$dst), !strconcat(asmstr, "\t$dst"),
379 [(MipsFPBrcond op, bb:$dst)]> {
385 let DecoderMethod = "DecodeBC1" in {
386 def BC1F : FBRANCH<0, 0, MIPS_BRANCH_F, "bc1f">;
387 def BC1T : FBRANCH<0, 1, MIPS_BRANCH_T, "bc1t">;
389 //===----------------------------------------------------------------------===//
390 // Floating Point Flag Conditions
391 //===----------------------------------------------------------------------===//
392 // Mips condition codes. They must correspond to condcode in MipsInstrInfo.h.
393 // They must be kept in synch.
394 def MIPS_FCOND_F : PatLeaf<(i32 0)>;
395 def MIPS_FCOND_UN : PatLeaf<(i32 1)>;
396 def MIPS_FCOND_OEQ : PatLeaf<(i32 2)>;
397 def MIPS_FCOND_UEQ : PatLeaf<(i32 3)>;
398 def MIPS_FCOND_OLT : PatLeaf<(i32 4)>;
399 def MIPS_FCOND_ULT : PatLeaf<(i32 5)>;
400 def MIPS_FCOND_OLE : PatLeaf<(i32 6)>;
401 def MIPS_FCOND_ULE : PatLeaf<(i32 7)>;
402 def MIPS_FCOND_SF : PatLeaf<(i32 8)>;
403 def MIPS_FCOND_NGLE : PatLeaf<(i32 9)>;
404 def MIPS_FCOND_SEQ : PatLeaf<(i32 10)>;
405 def MIPS_FCOND_NGL : PatLeaf<(i32 11)>;
406 def MIPS_FCOND_LT : PatLeaf<(i32 12)>;
407 def MIPS_FCOND_NGE : PatLeaf<(i32 13)>;
408 def MIPS_FCOND_LE : PatLeaf<(i32 14)>;
409 def MIPS_FCOND_NGT : PatLeaf<(i32 15)>;
411 class FCMP<bits<5> fmt, RegisterClass RC, string typestr> :
412 FCC<fmt, (outs), (ins RC:$fs, RC:$ft, condcode:$cc),
413 !strconcat("c.$cc.", typestr, "\t$fs, $ft"),
414 [(MipsFPCmp RC:$fs, RC:$ft, imm:$cc)]>;
416 /// Floating Point Compare
417 let Defs=[FCR31] in {
418 def FCMP_S32 : FCMP<0x10, FGR32, "s">;
419 def FCMP_D32 : FCMP<0x11, AFGR64, "d">,
420 Requires<[NotFP64bit, HasStdEnc]>;
421 def FCMP_D64 : FCMP<0x11, FGR64, "d">,
422 Requires<[IsFP64bit, HasStdEnc]> {
423 let DecoderNamespace = "Mips64";
427 //===----------------------------------------------------------------------===//
428 // Floating Point Pseudo-Instructions
429 //===----------------------------------------------------------------------===//
430 def MOVCCRToCCR : PseudoSE<(outs CCR:$dst), (ins CCR:$src),
431 "# MOVCCRToCCR", []>;
433 // This pseudo instr gets expanded into 2 mtc1 instrs after register
436 PseudoSE<(outs AFGR64:$dst),
437 (ins CPURegs:$lo, CPURegs:$hi), "",
438 [(set AFGR64:$dst, (MipsBuildPairF64 CPURegs:$lo, CPURegs:$hi))]>;
440 // This pseudo instr gets expanded into 2 mfc1 instrs after register
442 // if n is 0, lower part of src is extracted.
443 // if n is 1, higher part of src is extracted.
444 def ExtractElementF64 :
445 PseudoSE<(outs CPURegs:$dst), (ins AFGR64:$src, i32imm:$n), "",
446 [(set CPURegs:$dst, (MipsExtractElementF64 AFGR64:$src, imm:$n))]>;
448 //===----------------------------------------------------------------------===//
449 // Floating Point Patterns
450 //===----------------------------------------------------------------------===//
451 def : MipsPat<(f32 fpimm0), (MTC1 ZERO)>;
452 def : MipsPat<(f32 fpimm0neg), (FNEG_S (MTC1 ZERO))>;
454 def : MipsPat<(f32 (sint_to_fp CPURegs:$src)), (CVT_S_W (MTC1 CPURegs:$src))>;
455 def : MipsPat<(i32 (fp_to_sint FGR32:$src)), (MFC1 (TRUNC_W_S FGR32:$src))>;
457 let Predicates = [NotFP64bit, HasStdEnc] in {
458 def : MipsPat<(f64 (sint_to_fp CPURegs:$src)),
459 (CVT_D32_W (MTC1 CPURegs:$src))>;
460 def : MipsPat<(i32 (fp_to_sint AFGR64:$src)),
461 (MFC1 (TRUNC_W_D32 AFGR64:$src))>;
462 def : MipsPat<(f32 (fround AFGR64:$src)), (CVT_S_D32 AFGR64:$src)>;
463 def : MipsPat<(f64 (fextend FGR32:$src)), (CVT_D32_S FGR32:$src)>;
466 let Predicates = [IsFP64bit, HasStdEnc] in {
467 def : MipsPat<(f64 fpimm0), (DMTC1 ZERO_64)>;
468 def : MipsPat<(f64 fpimm0neg), (FNEG_D64 (DMTC1 ZERO_64))>;
470 def : MipsPat<(f64 (sint_to_fp CPURegs:$src)),
471 (CVT_D64_W (MTC1 CPURegs:$src))>;
472 def : MipsPat<(f32 (sint_to_fp CPU64Regs:$src)),
473 (CVT_S_L (DMTC1 CPU64Regs:$src))>;
474 def : MipsPat<(f64 (sint_to_fp CPU64Regs:$src)),
475 (CVT_D64_L (DMTC1 CPU64Regs:$src))>;
477 def : MipsPat<(i32 (fp_to_sint FGR64:$src)),
478 (MFC1 (TRUNC_W_D64 FGR64:$src))>;
479 def : MipsPat<(i64 (fp_to_sint FGR32:$src)), (DMFC1 (TRUNC_L_S FGR32:$src))>;
480 def : MipsPat<(i64 (fp_to_sint FGR64:$src)),
481 (DMFC1 (TRUNC_L_D64 FGR64:$src))>;
483 def : MipsPat<(f32 (fround FGR64:$src)), (CVT_S_D64 FGR64:$src)>;
484 def : MipsPat<(f64 (fextend FGR32:$src)), (CVT_D64_S FGR32:$src)>;