X86ISelLowering.h revision 68c47cba3589b2fc079bab0836d1ae6fc3a6278d
1dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner//===-- X86ISelLowering.h - X86 DAG Lowering Interface ----------*- C++ -*-===// 2dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// 3dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// The LLVM Compiler Infrastructure 4dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// 5dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// This file was developed by Chris Lattner and is distributed under 6dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// the University of Illinois Open Source License. See LICENSE.TXT for details. 7dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// 8dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner//===----------------------------------------------------------------------===// 9dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// 10dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// This file defines the interfaces that X86 uses to lower LLVM code into a 11dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// selection DAG. 12dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner// 13dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner//===----------------------------------------------------------------------===// 14dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 15dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner#ifndef X86ISELLOWERING_H 16dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner#define X86ISELLOWERING_H 17dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 18559806f575297866609c7bef0e5c1084dcdda9a5Evan Cheng#include "X86Subtarget.h" 19dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner#include "llvm/Target/TargetLowering.h" 20dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner#include "llvm/CodeGen/SelectionDAG.h" 21dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 22dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattnernamespace llvm { 23dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner namespace X86ISD { 24d9558e0ba6ddcf2798cfb88cc56e5f1c8135eb0dEvan Cheng // X86 Specific DAG Nodes 25dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner enum NodeType { 26dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // Start the numbering where the builtin ops leave off. 277df96d66729d1f33934de7b52553e5f071686041Evan Cheng FIRST_NUMBER = ISD::BUILTIN_OP_END+X86::INSTRUCTION_LIST_END, 28dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 29e3413160ca2fb42854b2a23be6b2114c1da2778cEvan Cheng /// SHLD, SHRD - Double shift instructions. These correspond to 30e3413160ca2fb42854b2a23be6b2114c1da2778cEvan Cheng /// X86::SHLDxx and X86::SHRDxx instructions. 31e3413160ca2fb42854b2a23be6b2114c1da2778cEvan Cheng SHLD, 32e3413160ca2fb42854b2a23be6b2114c1da2778cEvan Cheng SHRD, 33e3413160ca2fb42854b2a23be6b2114c1da2778cEvan Cheng 34ef6ffb17c71232af5962f9926b31508eb942cddcEvan Cheng /// FAND - Bitwise logical AND of floating point values. This corresponds 35ef6ffb17c71232af5962f9926b31508eb942cddcEvan Cheng /// to X86::ANDPS or X86::ANDPD. 36ef6ffb17c71232af5962f9926b31508eb942cddcEvan Cheng FAND, 37ef6ffb17c71232af5962f9926b31508eb942cddcEvan Cheng 3868c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng /// FOR - Bitwise logical OR of floating point values. This corresponds 3968c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng /// to X86::ORPS or X86::ORPD. 4068c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng FOR, 4168c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng 42223547ab3101f32252cb704a67bd757e00fdbd16Evan Cheng /// FXOR - Bitwise logical XOR of floating point values. This corresponds 43223547ab3101f32252cb704a67bd757e00fdbd16Evan Cheng /// to X86::XORPS or X86::XORPD. 44223547ab3101f32252cb704a67bd757e00fdbd16Evan Cheng FXOR, 45223547ab3101f32252cb704a67bd757e00fdbd16Evan Cheng 4668c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng /// FSHL, FSRL - Shift a floating point value (in SSE register) by n bits 4768c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng /// while shifting in 0's. These corresponds to X86::PSLLDQ or 4868c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng /// X86::PSRLDQ. 4968c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng FSHL, 5068c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng FSRL, 5168c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng 52e3de85b447b0a94c82f147159a0c903ea47e0069Evan Cheng /// FILD, FILD_FLAG - This instruction implements SINT_TO_FP with the 53e3de85b447b0a94c82f147159a0c903ea47e0069Evan Cheng /// integer source in memory and FP reg result. This corresponds to the 54e3de85b447b0a94c82f147159a0c903ea47e0069Evan Cheng /// X86::FILD*m instructions. It has three inputs (token chain, address, 55e3de85b447b0a94c82f147159a0c903ea47e0069Evan Cheng /// and source type) and two outputs (FP value and token chain). FILD_FLAG 56e3de85b447b0a94c82f147159a0c903ea47e0069Evan Cheng /// also produces a flag). 57a3195e86439896ecba9b3f2afce40919b20a987aEvan Cheng FILD, 58e3de85b447b0a94c82f147159a0c903ea47e0069Evan Cheng FILD_FLAG, 59dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 60dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// FP_TO_INT*_IN_MEM - This instruction implements FP_TO_SINT with the 61dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// integer destination in memory and a FP reg source. This corresponds 62dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// to the X86::FIST*m instructions and the rounding mode change stuff. It 6391897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// has two inputs (token chain and address) and two outputs (int value 6491897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// and token chain). 65dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner FP_TO_INT16_IN_MEM, 66dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner FP_TO_INT32_IN_MEM, 67dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner FP_TO_INT64_IN_MEM, 68dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 69b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng /// FLD - This instruction implements an extending load to FP stack slots. 70b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng /// This corresponds to the X86::FLD32m / X86::FLD64m. It takes a chain 7138bcbaf23e8836c8f64e7fd66ebebc44a2b921a1Evan Cheng /// operand, ptr to load from, and a ValueType node indicating the type 7238bcbaf23e8836c8f64e7fd66ebebc44a2b921a1Evan Cheng /// to load to. 73b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng FLD, 74b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng 75d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng /// FST - This instruction implements a truncating store to FP stack 76d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng /// slots. This corresponds to the X86::FST32m / X86::FST64m. It takes a 77d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng /// chain operand, value to store, address, and a ValueType to store it 78d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng /// as. 79d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng FST, 80d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng 81d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng /// FP_SET_RESULT - This corresponds to FpGETRESULT pseudo instrcuction 82d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng /// which copies from ST(0) to the destination. It takes a chain and writes 83d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng /// a RFP result and a chain. 84d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng FP_GET_RESULT, 85d90eb7fb2435e2abedb4694edc44fa45642edbe9Evan Cheng 86b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng /// FP_SET_RESULT - This corresponds to FpSETRESULT pseudo instrcuction 87b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng /// which copies the source operand to ST(0). It takes a chain and writes 88b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng /// a chain and a flag. 89b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng FP_SET_RESULT, 90b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng 91dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// CALL/TAILCALL - These operations represent an abstract X86 call 92dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// instruction, which includes a bunch of information. In particular the 93dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// operands of these node are: 94dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// 95dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #0 - The incoming token chain 96dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #1 - The callee 97dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #2 - The number of arg bytes the caller pushes on the stack. 98dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #3 - The number of arg bytes the callee pops off the stack. 99dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #4 - The value to pass in AL/AX/EAX (optional) 100dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #5 - The value to pass in DL/DX/EDX (optional) 101dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// 102dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// The result values of these nodes are: 103dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// 104dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #0 - The outgoing token chain 105dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #1 - The first register result value (optional) 106dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// #2 - The second register result value (optional) 107dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// 108dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// The CALL vs TAILCALL distinction boils down to whether the callee is 109dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// known not to modify the caller's stack frame, as is standard with 110dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// LLVM. 111dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner CALL, 112dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner TAILCALL, 113b873ff322c28ce097762355921100b677c71238dAndrew Lenharth 114b873ff322c28ce097762355921100b677c71238dAndrew Lenharth /// RDTSC_DAG - This operation implements the lowering for 115b873ff322c28ce097762355921100b677c71238dAndrew Lenharth /// readcyclecounter 116b873ff322c28ce097762355921100b677c71238dAndrew Lenharth RDTSC_DAG, 1177df96d66729d1f33934de7b52553e5f071686041Evan Cheng 1187df96d66729d1f33934de7b52553e5f071686041Evan Cheng /// X86 compare and logical compare instructions. 1196be2c58c8c4d2b8dede9e3d6920a18f04164388bEvan Cheng CMP, TEST, COMI, UCOMI, 1207df96d66729d1f33934de7b52553e5f071686041Evan Cheng 121d5781fca4f8f98863560338d4f8d017389428119Evan Cheng /// X86 SetCC. Operand 1 is condition code, and operand 2 is the flag 122d5781fca4f8f98863560338d4f8d017389428119Evan Cheng /// operand produced by a CMP instruction. 123d5781fca4f8f98863560338d4f8d017389428119Evan Cheng SETCC, 124d5781fca4f8f98863560338d4f8d017389428119Evan Cheng 125d5781fca4f8f98863560338d4f8d017389428119Evan Cheng /// X86 conditional moves. Operand 1 and operand 2 are the two values 12691897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// to select from (operand 1 is a R/W operand). Operand 3 is the 12791897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// condition code, and operand 4 is the flag operand produced by a CMP 12891897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// or TEST instruction. It also writes a flag result. 1297df96d66729d1f33934de7b52553e5f071686041Evan Cheng CMOV, 130898101c15fa11a896deb4e2fcb73b4727e1dcc1fEvan Cheng 131d5781fca4f8f98863560338d4f8d017389428119Evan Cheng /// X86 conditional branches. Operand 1 is the chain operand, operand 2 132d5781fca4f8f98863560338d4f8d017389428119Evan Cheng /// is the block to branch if condition is true, operand 3 is the 133d5781fca4f8f98863560338d4f8d017389428119Evan Cheng /// condition code, and operand 4 is the flag operand produced by a CMP 134d5781fca4f8f98863560338d4f8d017389428119Evan Cheng /// or TEST instruction. 135898101c15fa11a896deb4e2fcb73b4727e1dcc1fEvan Cheng BRCOND, 136b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng 13767f92a76497d1f50e0dd6279c81b45689bd463f5Evan Cheng /// Return with a flag operand. Operand 1 is the chain operand, operand 13867f92a76497d1f50e0dd6279c81b45689bd463f5Evan Cheng /// 2 is the number of bytes of stack to pop. 139b077b842b64af39c8e2e9aaad327b3be446790ddEvan Cheng RET_FLAG, 14067f92a76497d1f50e0dd6279c81b45689bd463f5Evan Cheng 14167f92a76497d1f50e0dd6279c81b45689bd463f5Evan Cheng /// REP_STOS - Repeat fill, corresponds to X86::REP_STOSx. 14267f92a76497d1f50e0dd6279c81b45689bd463f5Evan Cheng REP_STOS, 14367f92a76497d1f50e0dd6279c81b45689bd463f5Evan Cheng 14467f92a76497d1f50e0dd6279c81b45689bd463f5Evan Cheng /// REP_MOVS - Repeat move, corresponds to X86::REP_MOVSx. 14567f92a76497d1f50e0dd6279c81b45689bd463f5Evan Cheng REP_MOVS, 146223547ab3101f32252cb704a67bd757e00fdbd16Evan Cheng 147223547ab3101f32252cb704a67bd757e00fdbd16Evan Cheng /// LOAD_PACK Load a 128-bit packed float / double value. It has the same 148223547ab3101f32252cb704a67bd757e00fdbd16Evan Cheng /// operands as a normal load. 149223547ab3101f32252cb704a67bd757e00fdbd16Evan Cheng LOAD_PACK, 1507ccced634ae0ecdc1c4f599fd3abf188c367e231Evan Cheng 151206ee9d86cd4e78176fad6bfa2b016023edf5df7Evan Cheng /// LOAD_UA Load an unaligned 128-bit value. It has the same operands as 152206ee9d86cd4e78176fad6bfa2b016023edf5df7Evan Cheng /// a normal load. 153206ee9d86cd4e78176fad6bfa2b016023edf5df7Evan Cheng LOAD_UA, 154206ee9d86cd4e78176fad6bfa2b016023edf5df7Evan Cheng 1557ccced634ae0ecdc1c4f599fd3abf188c367e231Evan Cheng /// GlobalBaseReg - On Darwin, this node represents the result of the popl 1567ccced634ae0ecdc1c4f599fd3abf188c367e231Evan Cheng /// at function entry, used for PIC code. 1577ccced634ae0ecdc1c4f599fd3abf188c367e231Evan Cheng GlobalBaseReg, 158a0ea0539e359f6d82218e5aa4cdf3b50b17d6fbdEvan Cheng 1596458f1807d32e3625a192526c665a365f5886365Chris Lattner /// Wrapper - A wrapper node for TargetConstantPool, 160020d2e8e7aa36692af13c1215fdd6248a6d9e950Evan Cheng /// TargetExternalSymbol, and TargetGlobalAddress. 161020d2e8e7aa36692af13c1215fdd6248a6d9e950Evan Cheng Wrapper, 16248090aa8145640c023563751a8a1e1bcc09125e5Evan Cheng 1630085a28d13f86b09ba0c83e8dce81de3ba15ca2dEvan Cheng /// WrapperRIP - Special wrapper used under X86-64 PIC mode for RIP 1640085a28d13f86b09ba0c83e8dce81de3ba15ca2dEvan Cheng /// relative displacements. 1650085a28d13f86b09ba0c83e8dce81de3ba15ca2dEvan Cheng WrapperRIP, 1660085a28d13f86b09ba0c83e8dce81de3ba15ca2dEvan Cheng 167bc4832bc648f9cfb99a43e01852e0f2c7632f16cEvan Cheng /// S2VEC - X86 version of SCALAR_TO_VECTOR. The destination base does not 168bc4832bc648f9cfb99a43e01852e0f2c7632f16cEvan Cheng /// have to match the operand type. 169bc4832bc648f9cfb99a43e01852e0f2c7632f16cEvan Cheng S2VEC, 170b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng 171b067a1e7e68c4446d3512c25d3a5ac55c6dd76f8Evan Cheng /// PEXTRW - Extract a 16-bit value from a vector and zero extend it to 172653159f4aac61a7ad796e406a4899d27ffe5a789Evan Cheng /// i32, corresponds to X86::PEXTRW. 173b067a1e7e68c4446d3512c25d3a5ac55c6dd76f8Evan Cheng PEXTRW, 174653159f4aac61a7ad796e406a4899d27ffe5a789Evan Cheng 175653159f4aac61a7ad796e406a4899d27ffe5a789Evan Cheng /// PINSRW - Insert the lower 16-bits of a 32-bit value to a vector, 176653159f4aac61a7ad796e406a4899d27ffe5a789Evan Cheng /// corresponds to X86::PINSRW. 1778ca29326e19201075f6dc95781560ea9ad41ececEvan Cheng PINSRW, 1788ca29326e19201075f6dc95781560ea9ad41ececEvan Cheng 1798ca29326e19201075f6dc95781560ea9ad41ececEvan Cheng /// FMAX, FMIN - Floating point max and min. 1808ca29326e19201075f6dc95781560ea9ad41ececEvan Cheng /// 1818ca29326e19201075f6dc95781560ea9ad41ececEvan Cheng FMAX, FMIN 182dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner }; 183dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner } 184dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 185b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng /// Define some predicates that are used for node matching. 186b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng namespace X86 { 1870188ecba85c7139f237baa4ce5612fdfc83e1b84Evan Cheng /// isPSHUFDMask - Return true if the specified VECTOR_SHUFFLE operand 1880188ecba85c7139f237baa4ce5612fdfc83e1b84Evan Cheng /// specifies a shuffle of elements that is suitable for input to PSHUFD. 1890188ecba85c7139f237baa4ce5612fdfc83e1b84Evan Cheng bool isPSHUFDMask(SDNode *N); 1900188ecba85c7139f237baa4ce5612fdfc83e1b84Evan Cheng 191506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// isPSHUFHWMask - Return true if the specified VECTOR_SHUFFLE operand 192506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// specifies a shuffle of elements that is suitable for input to PSHUFD. 193506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng bool isPSHUFHWMask(SDNode *N); 194506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng 195506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// isPSHUFLWMask - Return true if the specified VECTOR_SHUFFLE operand 196506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// specifies a shuffle of elements that is suitable for input to PSHUFD. 197506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng bool isPSHUFLWMask(SDNode *N); 198506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng 19914aed5e66b606ab3ba39e1effd2a0a17790d6f19Evan Cheng /// isSHUFPMask - Return true if the specified VECTOR_SHUFFLE operand 20014aed5e66b606ab3ba39e1effd2a0a17790d6f19Evan Cheng /// specifies a shuffle of elements that is suitable for input to SHUFP*. 20114aed5e66b606ab3ba39e1effd2a0a17790d6f19Evan Cheng bool isSHUFPMask(SDNode *N); 20214aed5e66b606ab3ba39e1effd2a0a17790d6f19Evan Cheng 2032c0dbd01d240f80e5517773d8e2f77924c69a6ecEvan Cheng /// isMOVHLPSMask - Return true if the specified VECTOR_SHUFFLE operand 2042c0dbd01d240f80e5517773d8e2f77924c69a6ecEvan Cheng /// specifies a shuffle of elements that is suitable for input to MOVHLPS. 2052c0dbd01d240f80e5517773d8e2f77924c69a6ecEvan Cheng bool isMOVHLPSMask(SDNode *N); 2062c0dbd01d240f80e5517773d8e2f77924c69a6ecEvan Cheng 2076e56e2c602084bd7ab4af54e3c1a8700a9320f97Evan Cheng /// isMOVHLPS_v_undef_Mask - Special case of isMOVHLPSMask for canonical form 2086e56e2c602084bd7ab4af54e3c1a8700a9320f97Evan Cheng /// of vector_shuffle v, v, <2, 3, 2, 3>, i.e. vector_shuffle v, undef, 2096e56e2c602084bd7ab4af54e3c1a8700a9320f97Evan Cheng /// <2, 3, 2, 3> 2106e56e2c602084bd7ab4af54e3c1a8700a9320f97Evan Cheng bool isMOVHLPS_v_undef_Mask(SDNode *N); 2116e56e2c602084bd7ab4af54e3c1a8700a9320f97Evan Cheng 2125ced1d812e1de885b568ddfa6da008895d3f7ce7Evan Cheng /// isMOVLPMask - Return true if the specified VECTOR_SHUFFLE operand 2135ced1d812e1de885b568ddfa6da008895d3f7ce7Evan Cheng /// specifies a shuffle of elements that is suitable for input to MOVLP{S|D}. 2145ced1d812e1de885b568ddfa6da008895d3f7ce7Evan Cheng bool isMOVLPMask(SDNode *N); 2155ced1d812e1de885b568ddfa6da008895d3f7ce7Evan Cheng 2165ced1d812e1de885b568ddfa6da008895d3f7ce7Evan Cheng /// isMOVHPMask - Return true if the specified VECTOR_SHUFFLE operand 217533a0aa9ba8653e2a0219be442eebae02f371c88Evan Cheng /// specifies a shuffle of elements that is suitable for input to MOVHP{S|D} 218533a0aa9ba8653e2a0219be442eebae02f371c88Evan Cheng /// as well as MOVLHPS. 2195ced1d812e1de885b568ddfa6da008895d3f7ce7Evan Cheng bool isMOVHPMask(SDNode *N); 2205ced1d812e1de885b568ddfa6da008895d3f7ce7Evan Cheng 2210038e598037f76c2dce8b55ebb5e9147fd786330Evan Cheng /// isUNPCKLMask - Return true if the specified VECTOR_SHUFFLE operand 2220038e598037f76c2dce8b55ebb5e9147fd786330Evan Cheng /// specifies a shuffle of elements that is suitable for input to UNPCKL. 22339623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng bool isUNPCKLMask(SDNode *N, bool V2IsSplat = false); 2240038e598037f76c2dce8b55ebb5e9147fd786330Evan Cheng 2254fcb922c70b67bbd74ff77a9b831bd3699839b6dEvan Cheng /// isUNPCKHMask - Return true if the specified VECTOR_SHUFFLE operand 2264fcb922c70b67bbd74ff77a9b831bd3699839b6dEvan Cheng /// specifies a shuffle of elements that is suitable for input to UNPCKH. 22739623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng bool isUNPCKHMask(SDNode *N, bool V2IsSplat = false); 2284fcb922c70b67bbd74ff77a9b831bd3699839b6dEvan Cheng 2291d5a8cca004c29d99526b3c327d948f8ab197c90Evan Cheng /// isUNPCKL_v_undef_Mask - Special case of isUNPCKLMask for canonical form 2301d5a8cca004c29d99526b3c327d948f8ab197c90Evan Cheng /// of vector_shuffle v, v, <0, 4, 1, 5>, i.e. vector_shuffle v, undef, 2311d5a8cca004c29d99526b3c327d948f8ab197c90Evan Cheng /// <0, 0, 1, 1> 2321d5a8cca004c29d99526b3c327d948f8ab197c90Evan Cheng bool isUNPCKL_v_undef_Mask(SDNode *N); 2331d5a8cca004c29d99526b3c327d948f8ab197c90Evan Cheng 234017dcc6e556f3f89dd3e3881696084af694718acEvan Cheng /// isMOVLMask - Return true if the specified VECTOR_SHUFFLE operand 235017dcc6e556f3f89dd3e3881696084af694718acEvan Cheng /// specifies a shuffle of elements that is suitable for input to MOVSS, 236017dcc6e556f3f89dd3e3881696084af694718acEvan Cheng /// MOVSD, and MOVD, i.e. setting the lowest element. 237017dcc6e556f3f89dd3e3881696084af694718acEvan Cheng bool isMOVLMask(SDNode *N); 238d6d1cbd692dd519263e30d97d6c4c9e453b5c5d5Evan Cheng 239d953947d26da373b3b4e5ff66b60883fb78c0dd5Evan Cheng /// isMOVSHDUPMask - Return true if the specified VECTOR_SHUFFLE operand 240d953947d26da373b3b4e5ff66b60883fb78c0dd5Evan Cheng /// specifies a shuffle of elements that is suitable for input to MOVSHDUP. 241d953947d26da373b3b4e5ff66b60883fb78c0dd5Evan Cheng bool isMOVSHDUPMask(SDNode *N); 242d953947d26da373b3b4e5ff66b60883fb78c0dd5Evan Cheng 243d953947d26da373b3b4e5ff66b60883fb78c0dd5Evan Cheng /// isMOVSLDUPMask - Return true if the specified VECTOR_SHUFFLE operand 244d953947d26da373b3b4e5ff66b60883fb78c0dd5Evan Cheng /// specifies a shuffle of elements that is suitable for input to MOVSLDUP. 245d953947d26da373b3b4e5ff66b60883fb78c0dd5Evan Cheng bool isMOVSLDUPMask(SDNode *N); 246d953947d26da373b3b4e5ff66b60883fb78c0dd5Evan Cheng 247b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng /// isSplatMask - Return true if the specified VECTOR_SHUFFLE operand 248b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng /// specifies a splat of a single element. 249b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng bool isSplatMask(SDNode *N); 250b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng 251f686d9b71f0aa99578dac9a4dd50b57ece6945faEvan Cheng /// isSplatLoMask - Return true if the specified VECTOR_SHUFFLE operand 252f686d9b71f0aa99578dac9a4dd50b57ece6945faEvan Cheng /// specifies a splat of zero element. 253f686d9b71f0aa99578dac9a4dd50b57ece6945faEvan Cheng bool isSplatLoMask(SDNode *N); 254f686d9b71f0aa99578dac9a4dd50b57ece6945faEvan Cheng 25563d3300da1ec6403fbf11f62d6404c7f87bffdbaEvan Cheng /// getShuffleSHUFImmediate - Return the appropriate immediate to shuffle 25663d3300da1ec6403fbf11f62d6404c7f87bffdbaEvan Cheng /// the specified isShuffleMask VECTOR_SHUFFLE mask with PSHUF* and SHUFP* 25763d3300da1ec6403fbf11f62d6404c7f87bffdbaEvan Cheng /// instructions. 25863d3300da1ec6403fbf11f62d6404c7f87bffdbaEvan Cheng unsigned getShuffleSHUFImmediate(SDNode *N); 259506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng 260506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// getShufflePSHUFHWImmediate - Return the appropriate immediate to shuffle 261506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// the specified isShuffleMask VECTOR_SHUFFLE mask with PSHUFHW 262506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// instructions. 263506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng unsigned getShufflePSHUFHWImmediate(SDNode *N); 264506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng 265506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// getShufflePSHUFKWImmediate - Return the appropriate immediate to shuffle 266506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// the specified isShuffleMask VECTOR_SHUFFLE mask with PSHUFLW 267506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng /// instructions. 268506d3dfa90cfee6ab4736a6a2c892e9059a7864dEvan Cheng unsigned getShufflePSHUFLWImmediate(SDNode *N); 269b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng } 270b9df0ca67b9a59c75685a72ee50b1b471aa9d1bfEvan Cheng 27191897778690a7d683497ba3f4040ebf09345f08aChris Lattner //===--------------------------------------------------------------------===// 272dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // X86TargetLowering - X86 Implementation of the TargetLowering interface 273dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner class X86TargetLowering : public TargetLowering { 274dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner int VarArgsFrameIndex; // FrameIndex for start of varargs area. 27525ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng int RegSaveFrameIndex; // X86-64 vararg func register save area. 27625ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng unsigned VarArgsGPOffset; // X86-64 vararg func int reg offset. 27725ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng unsigned VarArgsFPOffset; // X86-64 vararg func fp reg offset. 278dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner int ReturnAddrIndex; // FrameIndex for return slot. 279dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner int BytesToPopOnReturn; // Number of arg bytes ret should pop. 280dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner int BytesCallerReserves; // Number of arg bytes caller makes. 281dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner public: 282dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner X86TargetLowering(TargetMachine &TM); 283dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 284dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // Return the number of bytes that a function should pop when it returns (in 285dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // addition to the space used by the return address). 286dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // 287dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner unsigned getBytesToPopOnReturn() const { return BytesToPopOnReturn; } 288dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 289dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // Return the number of bytes that the caller reserves for arguments passed 290dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // to this function. 291dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner unsigned getBytesCallerReserves() const { return BytesCallerReserves; } 292dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 293dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// LowerOperation - Provide custom lowering hooks for some operations. 294dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner /// 295dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner virtual SDOperand LowerOperation(SDOperand Op, SelectionDAG &DAG); 296dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 297dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner virtual std::pair<SDOperand, SDOperand> 298dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner LowerFrameReturnAddress(bool isFrameAddr, SDOperand Chain, unsigned Depth, 299dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner SelectionDAG &DAG); 300dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 301206ee9d86cd4e78176fad6bfa2b016023edf5df7Evan Cheng virtual SDOperand PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const; 302206ee9d86cd4e78176fad6bfa2b016023edf5df7Evan Cheng 3034a46080fe0133c71b511805c63abfb158dcd56a5Evan Cheng virtual MachineBasicBlock *InsertAtEndOfBasicBlock(MachineInstr *MI, 3044a46080fe0133c71b511805c63abfb158dcd56a5Evan Cheng MachineBasicBlock *MBB); 3054a46080fe0133c71b511805c63abfb158dcd56a5Evan Cheng 3067226158d7e3986e55b58214a749aa4eabb3fb6d5Evan Cheng /// getTargetNodeName - This method returns the name of a target specific 3077226158d7e3986e55b58214a749aa4eabb3fb6d5Evan Cheng /// DAG node. 3087226158d7e3986e55b58214a749aa4eabb3fb6d5Evan Cheng virtual const char *getTargetNodeName(unsigned Opcode) const; 3097226158d7e3986e55b58214a749aa4eabb3fb6d5Evan Cheng 310368e18d56a87308045d341e85584597bfe7426e9Nate Begeman /// computeMaskedBitsForTargetNode - Determine which of the bits specified 311368e18d56a87308045d341e85584597bfe7426e9Nate Begeman /// in Mask are known to be either zero or one and return them in the 312368e18d56a87308045d341e85584597bfe7426e9Nate Begeman /// KnownZero/KnownOne bitsets. 313368e18d56a87308045d341e85584597bfe7426e9Nate Begeman virtual void computeMaskedBitsForTargetNode(const SDOperand Op, 314368e18d56a87308045d341e85584597bfe7426e9Nate Begeman uint64_t Mask, 315368e18d56a87308045d341e85584597bfe7426e9Nate Begeman uint64_t &KnownZero, 316368e18d56a87308045d341e85584597bfe7426e9Nate Begeman uint64_t &KnownOne, 317368e18d56a87308045d341e85584597bfe7426e9Nate Begeman unsigned Depth = 0) const; 318368e18d56a87308045d341e85584597bfe7426e9Nate Begeman 319dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner SDOperand getReturnAddressFrameIndex(SelectionDAG &DAG); 320dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 321f4dff84c8614fc2106d821e4687c933d8d4b9420Chris Lattner ConstraintType getConstraintType(char ConstraintLetter) const; 322f4dff84c8614fc2106d821e4687c933d8d4b9420Chris Lattner 323259e97cc725011a3c138563d421a4654b082a64cChris Lattner std::vector<unsigned> 3241efa40f6a4b561cf8f80fe018684236010645cd0Chris Lattner getRegClassForInlineAsmConstraint(const std::string &Constraint, 3251efa40f6a4b561cf8f80fe018684236010645cd0Chris Lattner MVT::ValueType VT) const; 32622aaf1d61c6a752d66f7ee10a7a5d99c7160e007Chris Lattner /// isOperandValidForConstraint - Return the specified operand (possibly 32722aaf1d61c6a752d66f7ee10a7a5d99c7160e007Chris Lattner /// modified) if the specified SDOperand is valid for the specified target 32822aaf1d61c6a752d66f7ee10a7a5d99c7160e007Chris Lattner /// constraint letter, otherwise return null. 32922aaf1d61c6a752d66f7ee10a7a5d99c7160e007Chris Lattner SDOperand isOperandValidForConstraint(SDOperand Op, char ConstraintLetter, 33022aaf1d61c6a752d66f7ee10a7a5d99c7160e007Chris Lattner SelectionDAG &DAG); 33122aaf1d61c6a752d66f7ee10a7a5d99c7160e007Chris Lattner 33291897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// getRegForInlineAsmConstraint - Given a physical register constraint 33391897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// (e.g. {edx}), return the register number and the register class for the 33491897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// register. This should only be used for C_Register constraints. On 33591897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// error, this returns a register number of 0. 336f76d180c9595d34641f4b5d2fbba2f2c175197d8Chris Lattner std::pair<unsigned, const TargetRegisterClass*> 337f76d180c9595d34641f4b5d2fbba2f2c175197d8Chris Lattner getRegForInlineAsmConstraint(const std::string &Constraint, 338f76d180c9595d34641f4b5d2fbba2f2c175197d8Chris Lattner MVT::ValueType VT) const; 339f76d180c9595d34641f4b5d2fbba2f2c175197d8Chris Lattner 340c4c6257c1a154279bf10e9498d46d6c1793dbaa7Evan Cheng /// isLegalAddressImmediate - Return true if the integer value or 341c4c6257c1a154279bf10e9498d46d6c1793dbaa7Evan Cheng /// GlobalValue can be used as the offset of the target addressing mode. 342c4c6257c1a154279bf10e9498d46d6c1793dbaa7Evan Cheng virtual bool isLegalAddressImmediate(int64_t V) const; 343c4c6257c1a154279bf10e9498d46d6c1793dbaa7Evan Cheng virtual bool isLegalAddressImmediate(GlobalValue *GV) const; 344c4c6257c1a154279bf10e9498d46d6c1793dbaa7Evan Cheng 3450188ecba85c7139f237baa4ce5612fdfc83e1b84Evan Cheng /// isShuffleMaskLegal - Targets can use this to indicate that they only 3460188ecba85c7139f237baa4ce5612fdfc83e1b84Evan Cheng /// support *some* VECTOR_SHUFFLE operations, those with specific masks. 34791897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// By default, if a target supports the VECTOR_SHUFFLE node, all mask 34891897778690a7d683497ba3f4040ebf09345f08aChris Lattner /// values are assumed to be legal. 349ca6e8eafd2dfb13b89875405c54613b9cea1ca2eEvan Cheng virtual bool isShuffleMaskLegal(SDOperand Mask, MVT::ValueType VT) const; 35039623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng 35139623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng /// isVectorClearMaskLegal - Similar to isShuffleMaskLegal. This is 35239623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng /// used by Targets can use this to indicate if there is a suitable 35339623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng /// VECTOR_SHUFFLE that can be used to replace a VAND with a constant 35439623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng /// pool entry. 35539623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng virtual bool isVectorClearMaskLegal(std::vector<SDOperand> &BVOps, 35639623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng MVT::ValueType EVT, 35739623daef67090025be5cd8af7d172fd1c9e6418Evan Cheng SelectionDAG &DAG) const; 358dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner private: 3590db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng /// Subtarget - Keep a pointer to the X86Subtarget around so that we can 3600db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng /// make the right decision when generating code for different targets. 3610db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng const X86Subtarget *Subtarget; 3620db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng 36325ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng /// X86StackPtr - X86 physical register used as stack ptr. 36425ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng unsigned X86StackPtr; 36525ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng 3660db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng /// X86ScalarSSE - Select between SSE2 or x87 floating point ops. 3670db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng bool X86ScalarSSE; 3680db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng 369dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // C Calling Convention implementation. 37025caf63cd2befc2c4d18ce0316af853988b48224Evan Cheng SDOperand LowerCCCArguments(SDOperand Op, SelectionDAG &DAG); 37132fe1035a708d16d67e632f21d8ec2d1b437a225Evan Cheng SDOperand LowerCCCCallTo(SDOperand Op, SelectionDAG &DAG); 372dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 37325ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng // X86-64 C Calling Convention implementation. 37425ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng SDOperand LowerX86_64CCCArguments(SDOperand Op, SelectionDAG &DAG); 37525ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng SDOperand LowerX86_64CCCCallTo(SDOperand Op, SelectionDAG &DAG); 37625ab690a43cbbb591b76d49e3595b019c32f4b3fEvan Cheng 377dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner // Fast Calling Convention implementation. 37832fe1035a708d16d67e632f21d8ec2d1b437a225Evan Cheng SDOperand LowerFastCCArguments(SDOperand Op, SelectionDAG &DAG); 379f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov SDOperand LowerFastCCCallTo(SDOperand Op, SelectionDAG &DAG, 380f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov bool isFastCall); 381f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov 382f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov // StdCall Calling Convention implementation. 383f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov SDOperand LowerStdCallCCArguments(SDOperand Op, SelectionDAG &DAG); 384f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov SDOperand LowerStdCallCCCallTo(SDOperand Op, SelectionDAG &DAG); 385f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov 386f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov // FastCall Calling Convention implementation. 387f824868ed9d2cc756a797f6dbd67732f75e31cd6Anton Korobeynikov SDOperand LowerFastCallCCArguments(SDOperand Op, SelectionDAG &DAG); 388559806f575297866609c7bef0e5c1084dcdda9a5Evan Cheng 3890db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerBUILD_VECTOR(SDOperand Op, SelectionDAG &DAG); 3900db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerVECTOR_SHUFFLE(SDOperand Op, SelectionDAG &DAG); 3910db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerEXTRACT_VECTOR_ELT(SDOperand Op, SelectionDAG &DAG); 3920db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerINSERT_VECTOR_ELT(SDOperand Op, SelectionDAG &DAG); 3930db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerSCALAR_TO_VECTOR(SDOperand Op, SelectionDAG &DAG); 3940db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerConstantPool(SDOperand Op, SelectionDAG &DAG); 3950db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerGlobalAddress(SDOperand Op, SelectionDAG &DAG); 3960db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerExternalSymbol(SDOperand Op, SelectionDAG &DAG); 3970db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerShift(SDOperand Op, SelectionDAG &DAG); 3980db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerSINT_TO_FP(SDOperand Op, SelectionDAG &DAG); 3990db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerFP_TO_SINT(SDOperand Op, SelectionDAG &DAG); 4000db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerFABS(SDOperand Op, SelectionDAG &DAG); 4010db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerFNEG(SDOperand Op, SelectionDAG &DAG); 40268c47cba3589b2fc079bab0836d1ae6fc3a6278dEvan Cheng SDOperand LowerFCOPYSIGN(SDOperand Op, SelectionDAG &DAG); 403734503be5965237e7eed978837ff280a9fadf403Evan Cheng SDOperand LowerSETCC(SDOperand Op, SelectionDAG &DAG, SDOperand Chain); 4040db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerSELECT(SDOperand Op, SelectionDAG &DAG); 4050db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerBRCOND(SDOperand Op, SelectionDAG &DAG); 4060db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerMEMSET(SDOperand Op, SelectionDAG &DAG); 4070db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerMEMCPY(SDOperand Op, SelectionDAG &DAG); 4080db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerJumpTable(SDOperand Op, SelectionDAG &DAG); 40932fe1035a708d16d67e632f21d8ec2d1b437a225Evan Cheng SDOperand LowerCALL(SDOperand Op, SelectionDAG &DAG); 4100db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerRET(SDOperand Op, SelectionDAG &DAG); 4111bc7804e4c8747fd99b119e8f88686c9610c5d4eEvan Cheng SDOperand LowerFORMAL_ARGUMENTS(SDOperand Op, SelectionDAG &DAG); 4120db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerREADCYCLCECOUNTER(SDOperand Op, SelectionDAG &DAG); 4130db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerVASTART(SDOperand Op, SelectionDAG &DAG); 4140db9fe6775853d62632ad299dd734b6ba6c6b336Evan Cheng SDOperand LowerINTRINSIC_WO_CHAIN(SDOperand Op, SelectionDAG &DAG); 415dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner }; 416dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner} 417dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner 418da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// FASTCC_NUM_INT_ARGS_INREGS - This is the max number of integer arguments 419da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// to pass in registers. 0 is none, 1 is is "use EAX", 2 is "use EAX and 420da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// EDX". Anything more is illegal. 421da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// 422da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// FIXME: The linscan register allocator currently has problem with 423da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// coalescing. At the time of this writing, whenever it decides to coalesce 424da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// a physreg with a virtreg, this increases the size of the physreg's live 425da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// range, and the live range cannot ever be reduced. This causes problems if 426da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// too many physregs are coaleced with virtregs, which can cause the register 427da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// allocator to wedge itself. 428da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// 429da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// This code triggers this problem more often if we pass args in registers, 430da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// so disable it until this is fixed. 431da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng// 432da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng#define FASTCC_NUM_INT_ARGS_INREGS 0 433da08d2c39af6aceaa0230f699c4b53de0e97c2b9Evan Cheng 434dbdbf0ce2eef7b6585397121f56d3845e04866d1Chris Lattner#endif // X86ISELLOWERING_H 435