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1//===-- SystemZOperators.td - SystemZ-specific operators ------*- tblgen-*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10//===----------------------------------------------------------------------===//
11// Type profiles
12//===----------------------------------------------------------------------===//
13def SDT_CallSeqStart        : SDCallSeqStart<[SDTCisVT<0, i64>]>;
14def SDT_CallSeqEnd          : SDCallSeqEnd<[SDTCisVT<0, i64>,
15                                            SDTCisVT<1, i64>]>;
16def SDT_ZCall               : SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>;
17def SDT_ZCmp                : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
18def SDT_ZICmp               : SDTypeProfile<0, 3,
19                                            [SDTCisSameAs<0, 1>,
20                                             SDTCisVT<2, i32>]>;
21def SDT_ZBRCCMask           : SDTypeProfile<0, 3,
22                                            [SDTCisVT<0, i32>,
23                                             SDTCisVT<1, i32>,
24                                             SDTCisVT<2, OtherVT>]>;
25def SDT_ZSelectCCMask       : SDTypeProfile<1, 4,
26                                            [SDTCisSameAs<0, 1>,
27                                             SDTCisSameAs<1, 2>,
28                                             SDTCisVT<3, i32>,
29                                             SDTCisVT<4, i32>]>;
30def SDT_ZWrapPtr            : SDTypeProfile<1, 1,
31                                            [SDTCisSameAs<0, 1>,
32                                             SDTCisPtrTy<0>]>;
33def SDT_ZWrapOffset         : SDTypeProfile<1, 2,
34                                            [SDTCisSameAs<0, 1>,
35                                             SDTCisSameAs<0, 2>,
36                                             SDTCisPtrTy<0>]>;
37def SDT_ZAdjDynAlloc        : SDTypeProfile<1, 0, [SDTCisVT<0, i64>]>;
38def SDT_ZExtractAccess      : SDTypeProfile<1, 1,
39                                            [SDTCisVT<0, i32>,
40                                             SDTCisVT<1, i32>]>;
41def SDT_ZGR128Binary32      : SDTypeProfile<1, 2,
42                                            [SDTCisVT<0, untyped>,
43                                             SDTCisVT<1, untyped>,
44                                             SDTCisVT<2, i32>]>;
45def SDT_ZGR128Binary64      : SDTypeProfile<1, 2,
46                                            [SDTCisVT<0, untyped>,
47                                             SDTCisVT<1, untyped>,
48                                             SDTCisVT<2, i64>]>;
49def SDT_ZAtomicLoadBinaryW  : SDTypeProfile<1, 5,
50                                            [SDTCisVT<0, i32>,
51                                             SDTCisPtrTy<1>,
52                                             SDTCisVT<2, i32>,
53                                             SDTCisVT<3, i32>,
54                                             SDTCisVT<4, i32>,
55                                             SDTCisVT<5, i32>]>;
56def SDT_ZAtomicCmpSwapW     : SDTypeProfile<1, 6,
57                                            [SDTCisVT<0, i32>,
58                                             SDTCisPtrTy<1>,
59                                             SDTCisVT<2, i32>,
60                                             SDTCisVT<3, i32>,
61                                             SDTCisVT<4, i32>,
62                                             SDTCisVT<5, i32>,
63                                             SDTCisVT<6, i32>]>;
64def SDT_ZMemMemLength       : SDTypeProfile<0, 3,
65                                            [SDTCisPtrTy<0>,
66                                             SDTCisPtrTy<1>,
67                                             SDTCisVT<2, i64>]>;
68def SDT_ZMemMemLoop         : SDTypeProfile<0, 4,
69                                            [SDTCisPtrTy<0>,
70                                             SDTCisPtrTy<1>,
71                                             SDTCisVT<2, i64>,
72                                             SDTCisVT<3, i64>]>;
73def SDT_ZString             : SDTypeProfile<1, 3,
74                                            [SDTCisPtrTy<0>,
75                                             SDTCisPtrTy<1>,
76                                             SDTCisPtrTy<2>,
77                                             SDTCisVT<3, i32>]>;
78def SDT_ZI32Intrinsic       : SDTypeProfile<1, 0, [SDTCisVT<0, i32>]>;
79def SDT_ZPrefetch           : SDTypeProfile<0, 2,
80                                            [SDTCisVT<0, i32>,
81                                             SDTCisPtrTy<1>]>;
82def SDT_ZTBegin             : SDTypeProfile<0, 2,
83                                            [SDTCisPtrTy<0>,
84                                             SDTCisVT<1, i32>]>;
85
86//===----------------------------------------------------------------------===//
87// Node definitions
88//===----------------------------------------------------------------------===//
89
90// These are target-independent nodes, but have target-specific formats.
91def callseq_start       : SDNode<"ISD::CALLSEQ_START", SDT_CallSeqStart,
92                                 [SDNPHasChain, SDNPSideEffect, SDNPOutGlue]>;
93def callseq_end         : SDNode<"ISD::CALLSEQ_END",   SDT_CallSeqEnd,
94                                 [SDNPHasChain, SDNPSideEffect, SDNPOptInGlue,
95                                  SDNPOutGlue]>;
96def global_offset_table : SDNode<"ISD::GLOBAL_OFFSET_TABLE", SDTPtrLeaf>;
97
98// Nodes for SystemZISD::*.  See SystemZISelLowering.h for more details.
99def z_retflag           : SDNode<"SystemZISD::RET_FLAG", SDTNone,
100                                 [SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
101def z_call              : SDNode<"SystemZISD::CALL", SDT_ZCall,
102                                 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
103                                  SDNPVariadic]>;
104def z_sibcall           : SDNode<"SystemZISD::SIBCALL", SDT_ZCall,
105                                 [SDNPHasChain, SDNPOutGlue, SDNPOptInGlue,
106                                  SDNPVariadic]>;
107def z_tls_gdcall        : SDNode<"SystemZISD::TLS_GDCALL", SDT_ZCall,
108                                 [SDNPHasChain, SDNPInGlue, SDNPOutGlue,
109                                  SDNPVariadic]>;
110def z_tls_ldcall        : SDNode<"SystemZISD::TLS_LDCALL", SDT_ZCall,
111                                 [SDNPHasChain, SDNPInGlue, SDNPOutGlue,
112                                  SDNPVariadic]>;
113def z_pcrel_wrapper     : SDNode<"SystemZISD::PCREL_WRAPPER", SDT_ZWrapPtr, []>;
114def z_pcrel_offset      : SDNode<"SystemZISD::PCREL_OFFSET",
115                                 SDT_ZWrapOffset, []>;
116def z_iabs              : SDNode<"SystemZISD::IABS", SDTIntUnaryOp, []>;
117def z_icmp              : SDNode<"SystemZISD::ICMP", SDT_ZICmp, [SDNPOutGlue]>;
118def z_fcmp              : SDNode<"SystemZISD::FCMP", SDT_ZCmp, [SDNPOutGlue]>;
119def z_tm                : SDNode<"SystemZISD::TM", SDT_ZICmp, [SDNPOutGlue]>;
120def z_br_ccmask         : SDNode<"SystemZISD::BR_CCMASK", SDT_ZBRCCMask,
121                                 [SDNPHasChain, SDNPInGlue]>;
122def z_select_ccmask     : SDNode<"SystemZISD::SELECT_CCMASK", SDT_ZSelectCCMask,
123    		                 [SDNPInGlue]>;
124def z_adjdynalloc       : SDNode<"SystemZISD::ADJDYNALLOC", SDT_ZAdjDynAlloc>;
125def z_extract_access    : SDNode<"SystemZISD::EXTRACT_ACCESS",
126                                 SDT_ZExtractAccess>;
127def z_popcnt            : SDNode<"SystemZISD::POPCNT", SDTIntUnaryOp>;
128def z_umul_lohi64       : SDNode<"SystemZISD::UMUL_LOHI64", SDT_ZGR128Binary64>;
129def z_sdivrem32         : SDNode<"SystemZISD::SDIVREM32", SDT_ZGR128Binary32>;
130def z_sdivrem64         : SDNode<"SystemZISD::SDIVREM64", SDT_ZGR128Binary64>;
131def z_udivrem32         : SDNode<"SystemZISD::UDIVREM32", SDT_ZGR128Binary32>;
132def z_udivrem64         : SDNode<"SystemZISD::UDIVREM64", SDT_ZGR128Binary64>;
133
134def z_serialize         : SDNode<"SystemZISD::SERIALIZE", SDTNone,
135                                 [SDNPHasChain, SDNPMayStore]>;
136
137class AtomicWOp<string name, SDTypeProfile profile = SDT_ZAtomicLoadBinaryW>
138  : SDNode<"SystemZISD::"##name, profile,
139           [SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
140
141def z_atomic_swapw      : AtomicWOp<"ATOMIC_SWAPW">;
142def z_atomic_loadw_add  : AtomicWOp<"ATOMIC_LOADW_ADD">;
143def z_atomic_loadw_sub  : AtomicWOp<"ATOMIC_LOADW_SUB">;
144def z_atomic_loadw_and  : AtomicWOp<"ATOMIC_LOADW_AND">;
145def z_atomic_loadw_or   : AtomicWOp<"ATOMIC_LOADW_OR">;
146def z_atomic_loadw_xor  : AtomicWOp<"ATOMIC_LOADW_XOR">;
147def z_atomic_loadw_nand : AtomicWOp<"ATOMIC_LOADW_NAND">;
148def z_atomic_loadw_min  : AtomicWOp<"ATOMIC_LOADW_MIN">;
149def z_atomic_loadw_max  : AtomicWOp<"ATOMIC_LOADW_MAX">;
150def z_atomic_loadw_umin : AtomicWOp<"ATOMIC_LOADW_UMIN">;
151def z_atomic_loadw_umax : AtomicWOp<"ATOMIC_LOADW_UMAX">;
152def z_atomic_cmp_swapw  : AtomicWOp<"ATOMIC_CMP_SWAPW", SDT_ZAtomicCmpSwapW>;
153
154def z_mvc               : SDNode<"SystemZISD::MVC", SDT_ZMemMemLength,
155                                 [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
156def z_mvc_loop          : SDNode<"SystemZISD::MVC_LOOP", SDT_ZMemMemLoop,
157                                 [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
158def z_nc                : SDNode<"SystemZISD::NC", SDT_ZMemMemLength,
159                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
160def z_nc_loop           : SDNode<"SystemZISD::NC_LOOP", SDT_ZMemMemLoop,
161                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
162def z_oc                : SDNode<"SystemZISD::OC", SDT_ZMemMemLength,
163                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
164def z_oc_loop           : SDNode<"SystemZISD::OC_LOOP", SDT_ZMemMemLoop,
165                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
166def z_xc                : SDNode<"SystemZISD::XC", SDT_ZMemMemLength,
167                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
168def z_xc_loop           : SDNode<"SystemZISD::XC_LOOP", SDT_ZMemMemLoop,
169                                  [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
170def z_clc               : SDNode<"SystemZISD::CLC", SDT_ZMemMemLength,
171                                 [SDNPHasChain, SDNPOutGlue, SDNPMayLoad]>;
172def z_clc_loop          : SDNode<"SystemZISD::CLC_LOOP", SDT_ZMemMemLoop,
173                                 [SDNPHasChain, SDNPOutGlue, SDNPMayLoad]>;
174def z_strcmp            : SDNode<"SystemZISD::STRCMP", SDT_ZString,
175                                 [SDNPHasChain, SDNPOutGlue, SDNPMayLoad]>;
176def z_stpcpy            : SDNode<"SystemZISD::STPCPY", SDT_ZString,
177                                 [SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
178def z_search_string     : SDNode<"SystemZISD::SEARCH_STRING", SDT_ZString,
179                                 [SDNPHasChain, SDNPOutGlue, SDNPMayLoad]>;
180def z_ipm               : SDNode<"SystemZISD::IPM", SDT_ZI32Intrinsic,
181                                 [SDNPInGlue]>;
182def z_prefetch          : SDNode<"SystemZISD::PREFETCH", SDT_ZPrefetch,
183                                 [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
184                                  SDNPMemOperand]>;
185
186def z_tbegin            : SDNode<"SystemZISD::TBEGIN", SDT_ZTBegin,
187                                 [SDNPHasChain, SDNPOutGlue, SDNPMayStore,
188                                  SDNPSideEffect]>;
189def z_tbegin_nofloat    : SDNode<"SystemZISD::TBEGIN_NOFLOAT", SDT_ZTBegin,
190                                 [SDNPHasChain, SDNPOutGlue, SDNPMayStore,
191                                  SDNPSideEffect]>;
192def z_tend              : SDNode<"SystemZISD::TEND", SDTNone,
193                                 [SDNPHasChain, SDNPOutGlue, SDNPSideEffect]>;
194
195//===----------------------------------------------------------------------===//
196// Pattern fragments
197//===----------------------------------------------------------------------===//
198
199// Signed and unsigned comparisons.
200def z_scmp : PatFrag<(ops node:$a, node:$b), (z_icmp node:$a, node:$b, imm), [{
201  unsigned Type = cast<ConstantSDNode>(N->getOperand(2))->getZExtValue();
202  return Type != SystemZICMP::UnsignedOnly;
203}]>;
204def z_ucmp : PatFrag<(ops node:$a, node:$b), (z_icmp node:$a, node:$b, imm), [{
205  unsigned Type = cast<ConstantSDNode>(N->getOperand(2))->getZExtValue();
206  return Type != SystemZICMP::SignedOnly;
207}]>;
208
209// Register- and memory-based TEST UNDER MASK.
210def z_tm_reg : PatFrag<(ops node:$a, node:$b), (z_tm node:$a, node:$b, imm)>;
211def z_tm_mem : PatFrag<(ops node:$a, node:$b), (z_tm node:$a, node:$b, 0)>;
212
213// Register sign-extend operations.  Sub-32-bit values are represented as i32s.
214def sext8  : PatFrag<(ops node:$src), (sext_inreg node:$src, i8)>;
215def sext16 : PatFrag<(ops node:$src), (sext_inreg node:$src, i16)>;
216def sext32 : PatFrag<(ops node:$src), (sext (i32 node:$src))>;
217
218// Register zero-extend operations.  Sub-32-bit values are represented as i32s.
219def zext8  : PatFrag<(ops node:$src), (and node:$src, 0xff)>;
220def zext16 : PatFrag<(ops node:$src), (and node:$src, 0xffff)>;
221def zext32 : PatFrag<(ops node:$src), (zext (i32 node:$src))>;
222
223// Typed floating-point loads.
224def loadf32 : PatFrag<(ops node:$src), (f32 (load node:$src))>;
225def loadf64 : PatFrag<(ops node:$src), (f64 (load node:$src))>;
226
227// Extending loads in which the extension type can be signed.
228def asextload : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
229  unsigned Type = cast<LoadSDNode>(N)->getExtensionType();
230  return Type == ISD::EXTLOAD || Type == ISD::SEXTLOAD;
231}]>;
232def asextloadi8 : PatFrag<(ops node:$ptr), (asextload node:$ptr), [{
233  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i8;
234}]>;
235def asextloadi16 : PatFrag<(ops node:$ptr), (asextload node:$ptr), [{
236  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i16;
237}]>;
238def asextloadi32 : PatFrag<(ops node:$ptr), (asextload node:$ptr), [{
239  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
240}]>;
241
242// Extending loads in which the extension type can be unsigned.
243def azextload : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
244  unsigned Type = cast<LoadSDNode>(N)->getExtensionType();
245  return Type == ISD::EXTLOAD || Type == ISD::ZEXTLOAD;
246}]>;
247def azextloadi8 : PatFrag<(ops node:$ptr), (azextload node:$ptr), [{
248  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i8;
249}]>;
250def azextloadi16 : PatFrag<(ops node:$ptr), (azextload node:$ptr), [{
251  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i16;
252}]>;
253def azextloadi32 : PatFrag<(ops node:$ptr), (azextload node:$ptr), [{
254  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
255}]>;
256
257// Extending loads in which the extension type doesn't matter.
258def anyextload : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
259  return cast<LoadSDNode>(N)->getExtensionType() != ISD::NON_EXTLOAD;
260}]>;
261def anyextloadi8 : PatFrag<(ops node:$ptr), (anyextload node:$ptr), [{
262  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i8;
263}]>;
264def anyextloadi16 : PatFrag<(ops node:$ptr), (anyextload node:$ptr), [{
265  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i16;
266}]>;
267def anyextloadi32 : PatFrag<(ops node:$ptr), (anyextload node:$ptr), [{
268  return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
269}]>;
270
271// Aligned loads.
272class AlignedLoad<SDPatternOperator load>
273  : PatFrag<(ops node:$addr), (load node:$addr), [{
274  auto *Load = cast<LoadSDNode>(N);
275  return Load->getAlignment() >= Load->getMemoryVT().getStoreSize();
276}]>;
277def aligned_load         : AlignedLoad<load>;
278def aligned_asextloadi16 : AlignedLoad<asextloadi16>;
279def aligned_asextloadi32 : AlignedLoad<asextloadi32>;
280def aligned_azextloadi16 : AlignedLoad<azextloadi16>;
281def aligned_azextloadi32 : AlignedLoad<azextloadi32>;
282
283// Aligned stores.
284class AlignedStore<SDPatternOperator store>
285  : PatFrag<(ops node:$src, node:$addr), (store node:$src, node:$addr), [{
286  auto *Store = cast<StoreSDNode>(N);
287  return Store->getAlignment() >= Store->getMemoryVT().getStoreSize();
288}]>;
289def aligned_store         : AlignedStore<store>;
290def aligned_truncstorei16 : AlignedStore<truncstorei16>;
291def aligned_truncstorei32 : AlignedStore<truncstorei32>;
292
293// Non-volatile loads.  Used for instructions that might access the storage
294// location multiple times.
295class NonvolatileLoad<SDPatternOperator load>
296  : PatFrag<(ops node:$addr), (load node:$addr), [{
297  auto *Load = cast<LoadSDNode>(N);
298  return !Load->isVolatile();
299}]>;
300def nonvolatile_load          : NonvolatileLoad<load>;
301def nonvolatile_anyextloadi8  : NonvolatileLoad<anyextloadi8>;
302def nonvolatile_anyextloadi16 : NonvolatileLoad<anyextloadi16>;
303def nonvolatile_anyextloadi32 : NonvolatileLoad<anyextloadi32>;
304
305// Non-volatile stores.
306class NonvolatileStore<SDPatternOperator store>
307  : PatFrag<(ops node:$src, node:$addr), (store node:$src, node:$addr), [{
308  auto *Store = cast<StoreSDNode>(N);
309  return !Store->isVolatile();
310}]>;
311def nonvolatile_store         : NonvolatileStore<store>;
312def nonvolatile_truncstorei8  : NonvolatileStore<truncstorei8>;
313def nonvolatile_truncstorei16 : NonvolatileStore<truncstorei16>;
314def nonvolatile_truncstorei32 : NonvolatileStore<truncstorei32>;
315
316// A store of a load that can be implemented using MVC.
317def mvc_store : PatFrag<(ops node:$value, node:$addr),
318                        (unindexedstore node:$value, node:$addr),
319                        [{ return storeLoadCanUseMVC(N); }]>;
320
321// Binary read-modify-write operations on memory in which the other
322// operand is also memory and for which block operations like NC can
323// be used.  There are two patterns for each operator, depending on
324// which operand contains the "other" load.
325multiclass block_op<SDPatternOperator operator> {
326  def "1" : PatFrag<(ops node:$value, node:$addr),
327                    (unindexedstore (operator node:$value,
328                                              (unindexedload node:$addr)),
329                                    node:$addr),
330                    [{ return storeLoadCanUseBlockBinary(N, 0); }]>;
331  def "2" : PatFrag<(ops node:$value, node:$addr),
332                    (unindexedstore (operator (unindexedload node:$addr),
333                                              node:$value),
334                                    node:$addr),
335                    [{ return storeLoadCanUseBlockBinary(N, 1); }]>;
336}
337defm block_and : block_op<and>;
338defm block_or  : block_op<or>;
339defm block_xor : block_op<xor>;
340
341// Insertions.
342def inserti8 : PatFrag<(ops node:$src1, node:$src2),
343                       (or (and node:$src1, -256), node:$src2)>;
344def insertll : PatFrag<(ops node:$src1, node:$src2),
345                       (or (and node:$src1, 0xffffffffffff0000), node:$src2)>;
346def insertlh : PatFrag<(ops node:$src1, node:$src2),
347                       (or (and node:$src1, 0xffffffff0000ffff), node:$src2)>;
348def inserthl : PatFrag<(ops node:$src1, node:$src2),
349                       (or (and node:$src1, 0xffff0000ffffffff), node:$src2)>;
350def inserthh : PatFrag<(ops node:$src1, node:$src2),
351                       (or (and node:$src1, 0x0000ffffffffffff), node:$src2)>;
352def insertlf : PatFrag<(ops node:$src1, node:$src2),
353                       (or (and node:$src1, 0xffffffff00000000), node:$src2)>;
354def inserthf : PatFrag<(ops node:$src1, node:$src2),
355                       (or (and node:$src1, 0x00000000ffffffff), node:$src2)>;
356
357// ORs that can be treated as insertions.
358def or_as_inserti8 : PatFrag<(ops node:$src1, node:$src2),
359                             (or node:$src1, node:$src2), [{
360  unsigned BitWidth = N->getValueType(0).getScalarType().getSizeInBits();
361  return CurDAG->MaskedValueIsZero(N->getOperand(0),
362                                   APInt::getLowBitsSet(BitWidth, 8));
363}]>;
364
365// ORs that can be treated as reversed insertions.
366def or_as_revinserti8 : PatFrag<(ops node:$src1, node:$src2),
367                                (or node:$src1, node:$src2), [{
368  unsigned BitWidth = N->getValueType(0).getScalarType().getSizeInBits();
369  return CurDAG->MaskedValueIsZero(N->getOperand(1),
370                                   APInt::getLowBitsSet(BitWidth, 8));
371}]>;
372
373// Negative integer absolute.
374def z_inegabs : PatFrag<(ops node:$src), (ineg (z_iabs node:$src))>;
375
376// Integer absolute, matching the canonical form generated by DAGCombiner.
377def z_iabs32 : PatFrag<(ops node:$src),
378                       (xor (add node:$src, (sra node:$src, (i32 31))),
379                            (sra node:$src, (i32 31)))>;
380def z_iabs64 : PatFrag<(ops node:$src),
381                       (xor (add node:$src, (sra node:$src, (i32 63))),
382                            (sra node:$src, (i32 63)))>;
383def z_inegabs32 : PatFrag<(ops node:$src), (ineg (z_iabs32 node:$src))>;
384def z_inegabs64 : PatFrag<(ops node:$src), (ineg (z_iabs64 node:$src))>;
385
386// Fused multiply-add and multiply-subtract, but with the order of the
387// operands matching SystemZ's MA and MS instructions.
388def z_fma : PatFrag<(ops node:$src1, node:$src2, node:$src3),
389                    (fma node:$src2, node:$src3, node:$src1)>;
390def z_fms : PatFrag<(ops node:$src1, node:$src2, node:$src3),
391                    (fma node:$src2, node:$src3, (fneg node:$src1))>;
392
393// Floating-point negative absolute.
394def fnabs : PatFrag<(ops node:$ptr), (fneg (fabs node:$ptr))>;
395
396// Create a unary operator that loads from memory and then performs
397// the given operation on it.
398class loadu<SDPatternOperator operator, SDPatternOperator load = load>
399  : PatFrag<(ops node:$addr), (operator (load node:$addr))>;
400
401// Create a store operator that performs the given unary operation
402// on the value before storing it.
403class storeu<SDPatternOperator operator, SDPatternOperator store = store>
404  : PatFrag<(ops node:$value, node:$addr),
405            (store (operator node:$value), node:$addr)>;
406