LegalizeIntegerTypes.cpp revision 331120b1a482b782e8dffce63033bb8514ba2a96
169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----- LegalizeIntegerTypes.cpp - Legalization of integer types -------===// 2cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 3cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// The LLVM Compiler Infrastructure 4cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 8cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 9cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 1069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// This file implements integer type expansion and promotion for LegalizeTypes. 1169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Promotion is the act of changing a computation in an illegal type into a 1269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// computation in a larger type. For example, implementing i8 arithmetic in an 1369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// i32 register (often needed on powerpc). 1469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Expansion is the act of changing a computation in an illegal type into a 1578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands// computation in two identical registers of a smaller type. For example, 1669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// implementing i64 arithmetic in two i32 registers (often needed on 32-bit 1769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// targets). 18cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 19cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 20cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 21cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#include "LegalizeTypes.h" 22362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher#include "llvm/DerivedTypes.h" 23c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang#include "llvm/CodeGen/PseudoSourceValue.h" 247d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin#include "llvm/Support/ErrorHandling.h" 25fd87a544c00c2ca04ee23aae67bbcad4dc852a54Dan Gohman#include "llvm/Support/raw_ostream.h" 26cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattnerusing namespace llvm; 27cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 28cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Promotion 30cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 31cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 3269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteIntegerResult - This method is called when a result of a node is 3369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// found to be in need of promotion to a larger type. At this point, the node 3469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// may also have invalid operands or may have other results that need 3569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// expansion, we just know that (at least) one result needs promotion. 3669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) { 37d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer result: "; N->dump(&DAG); dbgs() << "\n"); 389fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SDValue Res = SDValue(); 3969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 40126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands // See if the target wants to custom expand this node. 41f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 421607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 43126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 4469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (N->getOpcode()) { 4569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 4669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#ifndef NDEBUG 47d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerResult #" << ResNo << ": "; 48d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 4969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#endif 50c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator!"); 5162bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman case ISD::MERGE_VALUES:Res = PromoteIntRes_MERGE_VALUES(N); break; 529fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertSext: Res = PromoteIntRes_AssertSext(N); break; 539fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertZext: Res = PromoteIntRes_AssertZext(N); break; 54bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntRes_BITCAST(N); break; 559fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BSWAP: Res = PromoteIntRes_BSWAP(N); break; 569fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BUILD_PAIR: Res = PromoteIntRes_BUILD_PAIR(N); break; 579fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::Constant: Res = PromoteIntRes_Constant(N); break; 5800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang case ISD::CONVERT_RNDSAT: 599fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_CONVERT_RNDSAT(N); break; 609fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTLZ: Res = PromoteIntRes_CTLZ(N); break; 619fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTPOP: Res = PromoteIntRes_CTPOP(N); break; 629fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTTZ: Res = PromoteIntRes_CTTZ(N); break; 63bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ISD::EXTRACT_VECTOR_ELT: 649fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_EXTRACT_VECTOR_ELT(N); break; 659fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::LOAD: Res = PromoteIntRes_LOAD(cast<LoadSDNode>(N));break; 669fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT: Res = PromoteIntRes_SELECT(N); break; 67436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem case ISD::VSELECT: Res = PromoteIntRes_VSELECT(N); break; 689fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT_CC: Res = PromoteIntRes_SELECT_CC(N); break; 699fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SETCC: Res = PromoteIntRes_SETCC(N); break; 709fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SHL: Res = PromoteIntRes_SHL(N); break; 718d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands case ISD::SIGN_EXTEND_INREG: 729fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_SIGN_EXTEND_INREG(N); break; 739fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRA: Res = PromoteIntRes_SRA(N); break; 749fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRL: Res = PromoteIntRes_SRL(N); break; 759fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::TRUNCATE: Res = PromoteIntRes_TRUNCATE(N); break; 769fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UNDEF: Res = PromoteIntRes_UNDEF(N); break; 779fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::VAARG: Res = PromoteIntRes_VAARG(N); break; 78bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 79fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_SUBVECTOR: 80fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_EXTRACT_SUBVECTOR(N); break; 81fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::VECTOR_SHUFFLE: 82fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_VECTOR_SHUFFLE(N); break; 83fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::INSERT_VECTOR_ELT: 84fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_INSERT_VECTOR_ELT(N); break; 85fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::BUILD_VECTOR: 86fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_BUILD_VECTOR(N); break; 87fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::SCALAR_TO_VECTOR: 88fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_SCALAR_TO_VECTOR(N); break; 89fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 9069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SIGN_EXTEND: 9169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ZERO_EXTEND: 929fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::ANY_EXTEND: Res = PromoteIntRes_INT_EXTEND(N); break; 93bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 9469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: 959fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::FP_TO_UINT: Res = PromoteIntRes_FP_TO_XINT(N); break; 9669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 97927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP32_TO_FP16:Res = PromoteIntRes_FP32_TO_FP16(N); break; 98927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 9969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AND: 10069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::OR: 10169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::XOR: 10269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ADD: 10369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SUB: 1049fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::MUL: Res = PromoteIntRes_SimpleIntBinOp(N); break; 10569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SDIV: 1079fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SREM: Res = PromoteIntRes_SDIV(N); break; 10869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::UDIV: 1109fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UREM: Res = PromoteIntRes_UDIV(N); break; 1118ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 112253174bf50c932abaa680f465e2888c0e5272267Bill Wendling case ISD::SADDO: 1139fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SSUBO: Res = PromoteIntRes_SADDSUBO(N, ResNo); break; 11474c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::UADDO: 1159fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::USUBO: Res = PromoteIntRes_UADDSUBO(N, ResNo); break; 11674c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::SMULO: 1179fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UMULO: Res = PromoteIntRes_XMULO(N, ResNo); break; 118b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 119331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman case ISD::ATOMIC_LOAD: 120331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman Res = PromoteIntRes_Atomic0(cast<AtomicSDNode>(N)); break; 121331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 1220b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_ADD: 1230b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_SUB: 1240b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_AND: 1250b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_OR: 1260b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_XOR: 1270b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_NAND: 1280b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MIN: 1290b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MAX: 1300b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMIN: 1310b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMAX: 1320b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_SWAP: 1339fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic1(cast<AtomicSDNode>(N)); break; 134b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1350b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_CMP_SWAP: 1369fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic2(cast<AtomicSDNode>(N)); break; 13769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 13869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1399fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands // If the result is null then the sub-method took care of registering it. 1409fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (Res.getNode()) 1419fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SetPromotedInteger(SDValue(N, ResNo), Res); 14269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 14369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 14462bb16cfd10dd271eab6c31d982bca4d79138602Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntRes_MERGE_VALUES(SDNode *N) { 14562bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman SDValue Op = DecomposeMERGE_VALUES(N); 14662bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman return GetPromotedInteger(Op); 14762bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman} 14862bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman 149475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertSext(SDNode *N) { 15095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Sign-extend the new bits, and continue the assertion. 151c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = SExtPromotedInteger(N->getOperand(0)); 152786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertSext, N->getDebugLoc(), 153786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 15495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 15595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 156475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertZext(SDNode *N) { 15795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Zero the new bits, and continue the assertion. 158c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 159786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertZext, N->getDebugLoc(), 160786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 16195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 16295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 163331120b1a482b782e8dffce63033bb8514ba2a96Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntRes_Atomic0(AtomicSDNode *N) { 164331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman EVT ResVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 165331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 166331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getMemoryVT(), ResVT, 167331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getChain(), N->getBasePtr(), 168331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getMemOperand(), N->getOrdering(), 169331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getSynchScope()); 170331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman // Legalized the chain result - switch anything that used the old chain to 171331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman // use the new one. 172331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 173331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman return Res; 174331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman} 175331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 176b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic1(AtomicSDNode *N) { 177b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 1787fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 179786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getMemoryVT(), 1800b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman N->getChain(), N->getBasePtr(), 18155ba816883842e793cdeb32fcb805c4e011b527fEli Friedman Op2, N->getMemOperand(), N->getOrdering(), 18255ba816883842e793cdeb32fcb805c4e011b527fEli Friedman N->getSynchScope()); 183b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 184b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 185b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 186b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 187b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 188b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 189b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic2(AtomicSDNode *N) { 190b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 191b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op3 = GetPromotedInteger(N->getOperand(3)); 192fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 193f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen N->getMemoryVT(), N->getChain(), N->getBasePtr(), 19455ba816883842e793cdeb32fcb805c4e011b527fEli Friedman Op2, Op3, N->getMemOperand(), N->getOrdering(), 19555ba816883842e793cdeb32fcb805c4e011b527fEli Friedman N->getSynchScope()); 196b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 197b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 198b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 199b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 200b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 201b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 202bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) { 203475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = N->getOperand(0); 204e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT InVT = InOp.getValueType(); 20523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 206e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OutVT = N->getValueType(0); 20723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 208786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 20969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 21069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (getTypeAction(InVT)) { 21169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 21269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(false && "Unknown type action!"); 21369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 21496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 21569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 21696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 21747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (NOutVT.bitsEq(NInVT)) 21869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The input promotes to the same size. Convert the promoted value. 219bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetPromotedInteger(InOp)); 22069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 22196e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSoftenFloat: 22269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the integer operand by hand. 223786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, GetSoftenedFloat(InOp)); 22496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 22596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandFloat: 22669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 22796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeScalarizeVector: 22869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert the element to an integer and promote it by hand. 229c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem if (!NOutVT.isVector()) 230c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 231c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem BitConvertToInteger(GetScalarizedVector(InOp))); 232c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem break; 23396e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSplitVector: { 234bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck // For example, i32 = BITCAST v2i16 on alpha. Convert the split 23569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // pieces of the input into integers and reassemble in the final type. 236475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 23769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetSplitVector(N->getOperand(0), Lo, Hi); 23869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Lo = BitConvertToInteger(Lo); 23969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Hi = BitConvertToInteger(Hi); 24069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 24169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 24269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 24369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 244786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen InOp = DAG.getNode(ISD::ANY_EXTEND, dl, 245adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT::getIntegerVT(*DAG.getContext(), 246adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng NOutVT.getSizeInBits()), 24769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands JoinIntegers(Lo, Hi)); 248bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp); 24969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 25096e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeWidenVector: 25187c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang if (OutVT.bitsEq(NInVT)) 25287c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang // The input is widened to the same size. Convert to the widened value. 253bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, OutVT, GetWidenedVector(InOp)); 25487c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang } 25569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 256aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 257aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman CreateStackStoreLoad(InOp, OutVT)); 25869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 25969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 260475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BSWAP(SDNode *N) { 261475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 262e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 263e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 264786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 265c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 266c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 267786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, dl, NVT, DAG.getNode(ISD::BSWAP, dl, NVT, Op), 26853dfa78e4133f6cdb5d860279adc337ea099ac15Duncan Sands DAG.getConstant(DiffBits, TLI.getPointerTy())); 269c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands} 270c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 271475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_PAIR(SDNode *N) { 272bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The pair element type may be legal, or may not promote to the same type as 273bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // the result, for example i14 = BUILD_PAIR (i7, i7). Handle all cases. 274786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), 27554e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), 27654e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getValueType(0)), JoinIntegers(N->getOperand(0), 27754e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getOperand(1))); 27869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 27969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 280475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_Constant(SDNode *N) { 281e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 282b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen // FIXME there is no actual debug info here 283b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 284bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Zero extend things like i1, sign extend everything else. It shouldn't 285bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // matter in theory which one we pick, but this tends to give better code? 286bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Opc = VT.isByteSized() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND; 28754e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher SDValue Result = DAG.getNode(Opc, dl, 28854e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), VT), 289a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands SDValue(N, 0)); 290bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(isa<ConstantSDNode>(Result) && "Didn't constant fold ext?"); 291bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Result; 29269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 29369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 29400ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P WangSDValue DAGTypeLegalizer::PromoteIntRes_CONVERT_RNDSAT(SDNode *N) { 29500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 29600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 29700ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 29800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_SF || CvtCode == ISD::CVT_UF) && 29900ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang "can only promote integers"); 30023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT OutVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 301c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(OutVT, N->getDebugLoc(), N->getOperand(0), 30200ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(1), N->getOperand(2), 30300ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 30400ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang} 30500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang 306475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTLZ(SDNode *N) { 307c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands // Zero extend to the promoted type and do the count there. 308c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 309b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 310e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 311e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 312b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Op = DAG.getNode(ISD::CTLZ, dl, NVT, Op); 31369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Subtract off the extra leading bits in the bigger type. 314b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen return DAG.getNode(ISD::SUB, dl, NVT, Op, 31569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DAG.getConstant(NVT.getSizeInBits() - 31669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands OVT.getSizeInBits(), NVT)); 31769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 31869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 319475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTPOP(SDNode *N) { 32069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Zero extend to the promoted type and do the count there. 321c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 322786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTPOP, N->getDebugLoc(), Op.getValueType(), Op); 32369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 32469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 325475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTTZ(SDNode *N) { 326475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 327e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 328e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 329786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 33069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The count is the same in the promoted type except if the original 33169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // value was zero. This can be handled by setting the bit just off 33269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the top of the original type. 33303dc093a2e63d20984c8fd67809fa762f1e31f1aDuncan Sands APInt TopBit(NVT.getSizeInBits(), 0); 3347a874ddda037349184fbeb22838cc11a1a9bb78fJay Foad TopBit.setBit(OVT.getSizeInBits()); 335786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::OR, dl, NVT, Op, DAG.getConstant(TopBit, NVT)); 336786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTTZ, dl, NVT, Op); 33769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 33869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 339475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N) { 340786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 34123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 342c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NVT, N->getOperand(0), 343c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman N->getOperand(1)); 34469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 34569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 346475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_FP_TO_XINT(SDNode *N) { 34723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 348a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands unsigned NewOpc = N->getOpcode(); 349786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 350d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 3514c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // If we're promoting a UINT to a larger size and the larger FP_TO_UINT is 3524c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // not Legal, check to see if we can use FP_TO_SINT instead. (If both UINT 35354e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // and SINT conversions are Custom, there is no way to tell which is 35454e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // preferable. We choose SINT because that's the right thing on PPC.) 355a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands if (N->getOpcode() == ISD::FP_TO_UINT && 3564c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 357f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NVT)) 358a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NewOpc = ISD::FP_TO_SINT; 359a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 360786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(NewOpc, dl, NVT, N->getOperand(0)); 361a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 362a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // Assert that the converted value fits in the original type. If it doesn't 363a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // (eg: because the value being converted is too big), then the result of the 364a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // original operation was undefined anyway, so the assert is still correct. 365a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands return DAG.getNode(N->getOpcode() == ISD::FP_TO_UINT ? 3660928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem ISD::AssertZext : ISD::AssertSext, dl, NVT, Res, 3670928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem DAG.getValueType(N->getValueType(0).getScalarType())); 368d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands} 369d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 370927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton KorobeynikovSDValue DAGTypeLegalizer::PromoteIntRes_FP32_TO_FP16(SDNode *N) { 371927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 372927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov DebugLoc dl = N->getDebugLoc(); 373927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 374927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov SDValue Res = DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 375927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 376927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov return DAG.getNode(ISD::AssertZext, dl, 377927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov NVT, Res, DAG.getValueType(N->getValueType(0))); 378927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov} 379927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 380475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_INT_EXTEND(SDNode *N) { 38123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 382786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 383be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 38496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem if (getTypeAction(N->getOperand(0).getValueType()) 38596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem == TargetLowering::TypePromoteInteger) { 386475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(N->getOperand(0)); 3876959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(Res.getValueType().bitsLE(NVT) && "Extension doesn't make sense!"); 388126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 389bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result and operand types are the same after promotion, simplify 390bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // to an in-register extension. 391bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (NVT == Res.getValueType()) { 392bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The high bits are not guaranteed to be anything. Insert an extend. 393bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::SIGN_EXTEND) 394786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 395bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DAG.getValueType(N->getOperand(0).getValueType())); 396bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::ZERO_EXTEND) 3970928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem return DAG.getZeroExtendInReg(Res, dl, 3980928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem N->getOperand(0).getValueType().getScalarType()); 399bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(N->getOpcode() == ISD::ANY_EXTEND && "Unknown integer extension!"); 400bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 401126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 40269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 40369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 404bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Otherwise, just extend the original operand all the way to the larger type. 405786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 406bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 40769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 408475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_LOAD(LoadSDNode *N) { 409bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 41023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 411bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::LoadExtType ExtType = 412bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::isNON_EXTLoad(N) ? ISD::EXTLOAD : N->getExtensionType(); 413786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 414a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Res = DAG.getExtLoad(ExtType, dl, NVT, N->getChain(), N->getBasePtr(), 4153d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner N->getPointerInfo(), 41647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getMemoryVT(), N->isVolatile(), 4171e559443a17d1b335f697551c6263ba60d5dd827David Greene N->isNonTemporal(), N->getAlignment()); 41869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 419bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Legalized the chain result - switch anything that used the old chain to 420bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 421475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 422bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 42369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 42469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 425874ae251c317788391f9c3f113957802d390a063Dale Johannesen/// Promote the overflow flag of an overflowing arithmetic node. 426ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Overflow(SDNode *N) { 427ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Simply change the return type of the boolean result. 42823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(1)); 429e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ValueVTs[] = { N->getValueType(0), NVT }; 430ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue Ops[] = { N->getOperand(0), N->getOperand(1) }; 431786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(N->getOpcode(), N->getDebugLoc(), 432786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getVTList(ValueVTs, 2), Ops, 2); 433ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 434ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Modified the sum result - switch anything that used the old sum to use 435ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the new one. 436ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 0), Res); 437ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 438ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return SDValue(Res.getNode(), 1); 439ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 440ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 441ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo) { 442ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 443ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 444ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 445ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 446ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // sign extension of its truncation to the original type. 447ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 448ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 449e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 450e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 451786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 452ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 453ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 454ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::SADDO ? ISD::ADD : ISD::SUB; 455786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 456ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 457ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: sign extend the arithmetic result from 458ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 459786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Ofl = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 460ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands DAG.getValueType(OVT)); 461ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 462786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 463ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 464ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 465ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 466ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 467ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 468ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 469ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 470475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SDIV(SDNode *N) { 471bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Sign extend the input. 472c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 473c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 474786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 475786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 47669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 47769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 478475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT(SDNode *N) { 479475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(1)); 480475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(2)); 481786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT, N->getDebugLoc(), 482786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0),LHS,RHS); 48369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 485436fe8498a0a3368d2690290e805213a0f114d0dNadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VSELECT(SDNode *N) { 486436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue Mask = GetPromotedInteger(N->getOperand(0)); 487436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue LHS = GetPromotedInteger(N->getOperand(1)); 488436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue RHS = GetPromotedInteger(N->getOperand(2)); 489436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem return DAG.getNode(ISD::VSELECT, N->getDebugLoc(), 490436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem LHS.getValueType(), Mask, LHS, RHS); 491436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem} 492436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem 493475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT_CC(SDNode *N) { 494475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(2)); 495475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(3)); 496786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(), 497786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0), 498bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 49969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 50069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 501475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SETCC(SDNode *N) { 502e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = TLI.getSetCCResultType(N->getOperand(0).getValueType()); 50328b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands 504786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 50528b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(SVT.isVector() == N->getOperand(0).getValueType().isVector() && 50628b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands "Vector compare must return a vector result!"); 5077e4982287591945c4e42ba8470a978e629789c76Duncan Sands 5087e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Get the SETCC result using the canonical SETCC type. 50928b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands SDValue SetCC = DAG.getNode(N->getOpcode(), dl, SVT, N->getOperand(0), 5107e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 5117e4982287591945c4e42ba8470a978e629789c76Duncan Sands 5127e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Convert to the expected type. 51323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 5146959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(NVT.bitsLE(SVT) && "Integer type overpromoted?"); 515786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, NVT, SetCC); 51669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 51769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 518475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SHL(SDNode *N) { 519786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SHL, N->getDebugLoc(), 520182465c589f95ff165331d06035ec53ff05bf1f5Evan Cheng TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)), 521bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands GetPromotedInteger(N->getOperand(0)), N->getOperand(1)); 52269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 52369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 524475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N) { 525475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 526786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, N->getDebugLoc(), 527786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 5288d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands} 5298d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands 530475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SimpleIntBinOp(SDNode *N) { 531bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input may have strange things in the top bits of the registers, but 532bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // these operations don't care. They may have weird bits going out, but 533bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // that too is okay if they are integer operations. 534475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(0)); 535475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(1)); 536786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 537786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 53869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 53969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 540475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRA(SDNode *N) { 541bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly sign extended. 542c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Res = SExtPromotedInteger(N->getOperand(0)); 543786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRA, N->getDebugLoc(), 544786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res.getValueType(), Res, N->getOperand(1)); 545bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 54669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 547475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRL(SDNode *N) { 548bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly zero extended. 549e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 55023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 551475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = ZExtPromotedInteger(N->getOperand(0)); 552786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, N->getDebugLoc(), NVT, Res, N->getOperand(1)); 55369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 55469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 555475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_TRUNCATE(SDNode *N) { 55623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 557475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res; 5584720611025276f01b158a1522620391332ffdc32Nadav Rotem SDValue InOp = N->getOperand(0); 5594720611025276f01b158a1522620391332ffdc32Nadav Rotem DebugLoc dl = N->getDebugLoc(); 56069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 5614720611025276f01b158a1522620391332ffdc32Nadav Rotem switch (getTypeAction(InOp.getValueType())) { 562c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown type action!"); 56396e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 56496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 5654720611025276f01b158a1522620391332ffdc32Nadav Rotem Res = InOp; 566bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 56796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 5684720611025276f01b158a1522620391332ffdc32Nadav Rotem Res = GetPromotedInteger(InOp); 569bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 5704720611025276f01b158a1522620391332ffdc32Nadav Rotem case TargetLowering::TypeSplitVector: 5714720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT InVT = InOp.getValueType(); 5724720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(InVT.isVector() && "Cannot split scalar types"); 5734720611025276f01b158a1522620391332ffdc32Nadav Rotem unsigned NumElts = InVT.getVectorNumElements(); 5744720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(NumElts == NVT.getVectorNumElements() && 5754720611025276f01b158a1522620391332ffdc32Nadav Rotem "Dst and Src must have the same number of elements"); 5764720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT EltVT = InVT.getScalarType(); 5774720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(isPowerOf2_32(NumElts) && 5784720611025276f01b158a1522620391332ffdc32Nadav Rotem "Promoted vector type must be a power of two"); 5794720611025276f01b158a1522620391332ffdc32Nadav Rotem 5804720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT HalfVT = EVT::getVectorVT(*DAG.getContext(), EltVT, NumElts/2); 5814720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT HalfNVT = EVT::getVectorVT(*DAG.getContext(), NVT.getScalarType(), 5824720611025276f01b158a1522620391332ffdc32Nadav Rotem NumElts/2); 5834720611025276f01b158a1522620391332ffdc32Nadav Rotem 5844720611025276f01b158a1522620391332ffdc32Nadav Rotem SDValue EOp1 = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, HalfVT, InOp, 5854720611025276f01b158a1522620391332ffdc32Nadav Rotem DAG.getIntPtrConstant(0)); 5864720611025276f01b158a1522620391332ffdc32Nadav Rotem SDValue EOp2 = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, HalfVT, InOp, 5874720611025276f01b158a1522620391332ffdc32Nadav Rotem DAG.getIntPtrConstant(NumElts/2)); 5884720611025276f01b158a1522620391332ffdc32Nadav Rotem EOp1 = DAG.getNode(ISD::TRUNCATE, dl, HalfNVT, EOp1); 5894720611025276f01b158a1522620391332ffdc32Nadav Rotem EOp2 = DAG.getNode(ISD::TRUNCATE, dl, HalfNVT, EOp2); 5904720611025276f01b158a1522620391332ffdc32Nadav Rotem 5914720611025276f01b158a1522620391332ffdc32Nadav Rotem return DAG.getNode(ISD::CONCAT_VECTORS, dl, NVT, EOp1, EOp2); 592bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands } 593bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 594bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate to NVT instead of VT 5954720611025276f01b158a1522620391332ffdc32Nadav Rotem return DAG.getNode(ISD::TRUNCATE, dl, NVT, Res); 59669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 59769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 598ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo) { 599ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 600ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 601ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 602ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 603ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // zero extension of its truncation to the original type. 604c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 605c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 606e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 607e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 608786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 60969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 610ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 611ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::UADDO ? ISD::ADD : ISD::SUB; 612786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 6138ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 614ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: zero extend the arithmetic result from 615ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 6164be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen SDValue Ofl = DAG.getZeroExtendInReg(Res, dl, OVT); 617ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 618786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 6198ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 620ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 621ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 6228ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 623ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 624ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 625ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 6265c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris LattnerSDValue DAGTypeLegalizer::PromoteIntRes_XMULO(SDNode *N, unsigned ResNo) { 6275c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Promote the overflow bit trivially. 6285c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (ResNo == 1) 6295c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return PromoteIntRes_Overflow(N); 630fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 6315c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 6325c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DebugLoc DL = N->getDebugLoc(); 633fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands EVT SmallVT = LHS.getValueType(); 634fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 635b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // To determine if the result overflowed in a larger type, we extend the 636b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // input to the larger type, do the multiply, then check the high bits of 637b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // the result to see if the overflow happened. 6385c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::SMULO) { 6395c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = SExtPromotedInteger(LHS); 6405c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = SExtPromotedInteger(RHS); 6415c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 6425c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = ZExtPromotedInteger(LHS); 6435c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = ZExtPromotedInteger(RHS); 6445c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 6455c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Mul = DAG.getNode(ISD::MUL, DL, LHS.getValueType(), LHS, RHS); 646fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 647b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // Overflow occurred iff the high part of the result does not 648b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // zero/sign-extend the low part. 6495c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Overflow; 6505c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::UMULO) { 651fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Unsigned overflow occurred iff the high part is non-zero. 6525c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Hi = DAG.getNode(ISD::SRL, DL, Mul.getValueType(), Mul, 653fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands DAG.getIntPtrConstant(SmallVT.getSizeInBits())); 6545c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner Overflow = DAG.getSetCC(DL, N->getValueType(1), Hi, 6555c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DAG.getConstant(0, Hi.getValueType()), ISD::SETNE); 6565c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 657fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Signed overflow occurred iff the high part does not sign extend the low. 658fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands SDValue SExt = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, Mul.getValueType(), 659fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Mul, DAG.getValueType(SmallVT)); 660fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Overflow = DAG.getSetCC(DL, N->getValueType(1), SExt, Mul, ISD::SETNE); 6615c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 6625c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 6635c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Use the calculated overflow everywhere. 6645c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner ReplaceValueWith(SDValue(N, 1), Overflow); 6655c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return Mul; 6665c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner} 6675c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 668ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { 669ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Zero extend the input. 670ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 671ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 672786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 673786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 6748ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling} 6758ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 676475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_UNDEF(SDNode *N) { 67753f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng return DAG.getUNDEF(TLI.getTypeToTransformTo(*DAG.getContext(), 67853f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng N->getValueType(0))); 67969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 68069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 681475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_VAARG(SDNode *N) { 682475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = N->getOperand(0); // Get the chain. 683475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getOperand(1); // Get the pointer. 684e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 685786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 68669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 68723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT RegVT = TLI.getRegisterType(*DAG.getContext(), VT); 68823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson unsigned NumRegs = TLI.getNumRegisters(*DAG.getContext(), VT); 689d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // The argument is passed as NumRegs registers of type RegVT. 690d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 691d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands SmallVector<SDValue, 8> Parts(NumRegs); 692d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 0; i < NumRegs; ++i) { 693cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola Parts[i] = DAG.getVAArg(RegVT, dl, Chain, Ptr, N->getOperand(2), 694cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola N->getConstantOperandVal(3)); 695d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands Chain = Parts[i].getValue(1); 696d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 69769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 698d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Handle endianness of the load. 699d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands if (TLI.isBigEndian()) 700d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands std::reverse(Parts.begin(), Parts.end()); 70169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 702d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Assemble the parts in the promoted type. 70323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 704786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[0]); 705d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 1; i < NumRegs; ++i) { 706786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Part = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[i]); 707d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Shift it to the right position and "or" it in. 708786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Part = DAG.getNode(ISD::SHL, dl, NVT, Part, 709d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands DAG.getConstant(i * RegVT.getSizeInBits(), 71092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 711786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res = DAG.getNode(ISD::OR, dl, NVT, Res, Part); 712d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 71369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 714d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Modified the chain result - switch anything that used the old chain to 715bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 716d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands ReplaceValueWith(SDValue(N, 1), Chain); 717d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 718d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands return Res; 71969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 72069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 721bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 722bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands// Integer Operand Promotion 723bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 7247fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 725bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// PromoteIntegerOperand - This method is called when the specified operand of 726bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// the specified node is found to need promotion. At this point, all of the 727bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// result types of the node are known to be legal, but other operands of the 728bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// node may need promotion or expansion as well as the specified one. 729bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sandsbool DAGTypeLegalizer::PromoteIntegerOperand(SDNode *N, unsigned OpNo) { 730d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer operand: "; N->dump(&DAG); dbgs() << "\n"); 731475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 7327fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 733f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 734bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 73569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 736bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 737bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 738bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #ifndef NDEBUG 739d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerOperand Op #" << OpNo << ": "; 740d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 741bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #endif 742c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator's operand!"); 743bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 744bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ANY_EXTEND: Res = PromoteIntOp_ANY_EXTEND(N); break; 745331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman case ISD::ATOMIC_STORE: 746331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman Res = PromoteIntOp_ATOMIC_STORE(cast<AtomicSDNode>(N)); 747331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman break; 748bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntOp_BITCAST(N); break; 749bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BR_CC: Res = PromoteIntOp_BR_CC(N, OpNo); break; 750bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BRCOND: Res = PromoteIntOp_BRCOND(N, OpNo); break; 751bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_PAIR: Res = PromoteIntOp_BUILD_PAIR(N); break; 752bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_VECTOR: Res = PromoteIntOp_BUILD_VECTOR(N); break; 753fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::CONCAT_VECTORS: Res = PromoteIntOp_CONCAT_VECTORS(N); break; 754fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_VECTOR_ELT: Res = PromoteIntOp_EXTRACT_VECTOR_ELT(N); break; 755bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::CONVERT_RNDSAT: 756bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_CONVERT_RNDSAT(N); break; 757bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: 758bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_INSERT_VECTOR_ELT(N, OpNo);break; 759bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::MEMBARRIER: Res = PromoteIntOp_MEMBARRIER(N); break; 760aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang case ISD::SCALAR_TO_VECTOR: 761aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang Res = PromoteIntOp_SCALAR_TO_VECTOR(N); break; 76228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands case ISD::VSELECT: 763bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT: Res = PromoteIntOp_SELECT(N, OpNo); break; 764bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT_CC: Res = PromoteIntOp_SELECT_CC(N, OpNo); break; 765bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SETCC: Res = PromoteIntOp_SETCC(N, OpNo); break; 766bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SIGN_EXTEND: Res = PromoteIntOp_SIGN_EXTEND(N); break; 767bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SINT_TO_FP: Res = PromoteIntOp_SINT_TO_FP(N); break; 768bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::STORE: Res = PromoteIntOp_STORE(cast<StoreSDNode>(N), 769bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta OpNo); break; 770bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::TRUNCATE: Res = PromoteIntOp_TRUNCATE(N); break; 771927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP16_TO_FP32: 772bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::UINT_TO_FP: Res = PromoteIntOp_UINT_TO_FP(N); break; 773bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ZERO_EXTEND: Res = PromoteIntOp_ZERO_EXTEND(N); break; 77455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 77555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 77655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 77755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 77855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 77955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = PromoteIntOp_Shift(N); break; 780bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta } 7819fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands 782bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result is null, the sub-method took care of registering results etc. 7839fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (!Res.getNode()) return false; 78447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 78547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 78647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 78747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 788bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return true; 789bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 790bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 791bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands "Invalid operand expansion"); 792bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 793475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 794bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return false; 79569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 79669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 79769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteSetCCOperands - Promote the operands of a comparison. This code is 79869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// shared among BR_CC, SELECT_CC, and SETCC handlers. 799475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::PromoteSetCCOperands(SDValue &NewLHS,SDValue &NewRHS, 80069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands ISD::CondCode CCCode) { 801cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // We have to insert explicit sign or zero extends. Note that we could 802cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // insert sign extends for ALL conditions, but zero extend is cheaper on 803cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // many machines (an AND instead of two shifts), so prefer it. 80469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (CCCode) { 805c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer comparison!"); 80669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETEQ: 80769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETNE: 80869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGE: 80969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGT: 81069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULE: 81169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULT: 81269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // ALL of these operations will work if we either sign or zero extend 81369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the operands (including the unsigned comparisons!). Zero extend is 81469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // usually a simpler/cheaper operation, so prefer it. 815c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = ZExtPromotedInteger(NewLHS); 816c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = ZExtPromotedInteger(NewRHS); 81711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 81869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGE: 81969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGT: 82069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLT: 82169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLE: 822c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = SExtPromotedInteger(NewLHS); 823c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = SExtPromotedInteger(NewRHS); 82411ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 82569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 82669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 82769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 828475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ANY_EXTEND(SDNode *N) { 829475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 830786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), N->getValueType(0), Op); 831bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 83269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 833331120b1a482b782e8dffce63033bb8514ba2a96Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntOp_ATOMIC_STORE(AtomicSDNode *N) { 834331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 835331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman return DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), N->getMemoryVT(), 836331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getChain(), N->getBasePtr(), Op2, N->getMemOperand(), 837331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getOrdering(), N->getSynchScope()); 838331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman} 839331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 840bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntOp_BITCAST(SDNode *N) { 84127759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // This should only occur in unusual situations like bitcasting to an 84227759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // x86_fp80, so just turn it into a store+load 84327759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman return CreateStackStoreLoad(N->getOperand(0), N->getValueType(0)); 84427759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman} 84527759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman 846475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo) { 847bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 2 && "Don't know how to promote this operand!"); 84869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 849475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(2); 850475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(3); 851bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(1))->get()); 85269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 853bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0), CC (#1) and basic block destination (Op#4) are always 854bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal types. 855027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 856027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), LHS, RHS, N->getOperand(4)), 857027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 858bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 859bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 860475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo) { 861bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 1 && "only know how to promote condition"); 862bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 863b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 864825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson EVT SVT = TLI.getSetCCResultType(MVT::Other); 865b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(1), SVT); 866bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 867bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0) and basic block destination (Op#2) are always legal types. 868027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Cond, 869027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 0); 870bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 871bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 872475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_PAIR(SDNode *N) { 873bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Since the result type is legal, the operands must promote to it. 874e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 875c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Lo = ZExtPromotedInteger(N->getOperand(0)); 876475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = GetPromotedInteger(N->getOperand(1)); 877bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Lo.getValueType() == N->getValueType(0) && "Operand over promoted?"); 878786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 879bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 880786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, N->getValueType(0), Hi, 88192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(OVT.getSizeInBits(), TLI.getPointerTy())); 882786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::OR, dl, N->getValueType(0), Lo, Hi); 88369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 88469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 885475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_VECTOR(SDNode *N) { 88669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The vector type is legal but the element type is not. This implies 88769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // that the vector is a power-of-two in length and that the element 88869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // type does not have a strange size (eg: it is not i1). 889e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VecVT = N->getValueType(0); 89069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned NumElts = VecVT.getVectorNumElements(); 89169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(NumElts & 1) && "Legal vector of one illegal element?"); 89269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 893b1303d05a89972195de023fda432cc621375a27cBob Wilson // Promote the inserted value. The type does not need to match the 894b1303d05a89972195de023fda432cc621375a27cBob Wilson // vector element type. Check that any extra bits introduced will be 895b1303d05a89972195de023fda432cc621375a27cBob Wilson // truncated away. 896b1303d05a89972195de023fda432cc621375a27cBob Wilson assert(N->getOperand(0).getValueType().getSizeInBits() >= 897b1303d05a89972195de023fda432cc621375a27cBob Wilson N->getValueType(0).getVectorElementType().getSizeInBits() && 898b1303d05a89972195de023fda432cc621375a27cBob Wilson "Type of inserted value narrower than vector element type!"); 89969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 900b1303d05a89972195de023fda432cc621375a27cBob Wilson SmallVector<SDValue, 16> NewOps; 901c885165e664f3b465403e1b6ce57ba63f57c5f0cBob Wilson for (unsigned i = 0; i < NumElts; ++i) 902b1303d05a89972195de023fda432cc621375a27cBob Wilson NewOps.push_back(GetPromotedInteger(N->getOperand(i))); 90369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 904027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, &NewOps[0], NumElts), 0); 90569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 90669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 90728088d3c049017a131aa7b07201c6e19c0227cefMon P WangSDValue DAGTypeLegalizer::PromoteIntOp_CONVERT_RNDSAT(SDNode *N) { 90828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 90928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 91028088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 91128088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_FS || CvtCode == ISD::CVT_FU) && 91228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang "can only promote integer arguments"); 91328088d3c049017a131aa7b07201c6e19c0227cefMon P Wang SDValue InOp = GetPromotedInteger(N->getOperand(0)); 914c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(N->getValueType(0), N->getDebugLoc(), InOp, 91528088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(1), N->getOperand(2), 91628088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 91728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang} 91828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang 919475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, 920475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned OpNo) { 92169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OpNo == 1) { 92269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the inserted value. This is valid because the type does not 92369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // have to match the vector element type. 92469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 92569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Check that any extra bits introduced will be truncated away. 92669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(N->getOperand(1).getValueType().getSizeInBits() >= 92769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getValueType(0).getVectorElementType().getSizeInBits() && 92869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Type of inserted value narrower than vector element type!"); 929027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 93069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetPromotedInteger(N->getOperand(1)), 931027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 932027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 93369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 93469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 93569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OpNo == 2 && "Different operand and result vector types?"); 93669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 93769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the index. 938c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Idx = ZExtPromotedInteger(N->getOperand(2)); 939027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 940027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), Idx), 0); 94169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 94269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 943475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_MEMBARRIER(SDNode *N) { 944475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewOps[6]; 9454be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 94669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewOps[0] = N->getOperand(0); 94769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 1; i < array_lengthof(NewOps); ++i) { 948475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag = GetPromotedInteger(N->getOperand(i)); 949825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson NewOps[i] = DAG.getZeroExtendInReg(Flag, dl, MVT::i1); 95069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 951027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewOps, array_lengthof(NewOps)), 0); 95269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 95369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 954aa9df0b0c3cef33514095bde2eedead986677955Mon P WangSDValue DAGTypeLegalizer::PromoteIntOp_SCALAR_TO_VECTOR(SDNode *N) { 955b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // Integer SCALAR_TO_VECTOR operands are implicitly truncated, so just promote 956b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // the operand in place. 957027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 958027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman GetPromotedInteger(N->getOperand(0))), 0); 959aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang} 960aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang 961475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT(SDNode *N, unsigned OpNo) { 96228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(OpNo == 0 && "Only know how to promote the condition!"); 96328b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands SDValue Cond = N->getOperand(0); 96428b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands EVT OpTy = N->getOperand(1).getValueType(); 9657e4982287591945c4e42ba8470a978e629789c76Duncan Sands 966b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 96728b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands EVT SVT = TLI.getSetCCResultType(N->getOpcode() == ISD::SELECT ? 96828b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands OpTy.getScalarType() : OpTy); 96928b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands Cond = PromoteTargetBoolean(Cond, SVT); 970bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 97128b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands return SDValue(DAG.UpdateNodeOperands(N, Cond, N->getOperand(1), 97228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands N->getOperand(2)), 0); 973bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 974bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 975475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo) { 976bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 977bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 978475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 979475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 980bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(4))->get()); 981bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 982bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#4) and the possible return values (#2 and #3) have legal types. 983027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2), 984027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(3), N->getOperand(4)), 0); 985bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 986bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 987475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SETCC(SDNode *N, unsigned OpNo) { 988bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 989bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 990475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 991475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 992bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get()); 993bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 994bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#2) is always legal. 995027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2)), 0); 996bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 997bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 99855467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::PromoteIntOp_Shift(SDNode *N) { 999027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 1000027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(1))), 0); 100155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 100255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 1003475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SIGN_EXTEND(SDNode *N) { 1004475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 1005786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1006786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 1007786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), 1008bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Op, DAG.getValueType(N->getOperand(0).getValueType())); 1009bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1010bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1011c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_SINT_TO_FP(SDNode *N) { 1012027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 1013027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SExtPromotedInteger(N->getOperand(0))), 0); 1014c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 1015c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 1016475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){ 1017bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 1018475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(), Ptr = N->getBasePtr(); 1019bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Alignment = N->getAlignment(); 1020bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands bool isVolatile = N->isVolatile(); 10211e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1022786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1023bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1024475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = GetPromotedInteger(N->getValue()); // Get promoted value. 1025bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1026bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate the value and store the result. 1027ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Val, Ptr, N->getPointerInfo(), 1028ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getMemoryVT(), 10291e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1030bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1031bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1032475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_TRUNCATE(SDNode *N) { 1033475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 1034786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), Op); 1035bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1036bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1037c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_UINT_TO_FP(SDNode *N) { 1038027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 1039027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(0))), 0); 1040c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 1041c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 1042475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ZERO_EXTEND(SDNode *N) { 10434be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1044475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 10454be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 10468e614322498f9b38995a6bf41100ca617180eacbNadav Rotem return DAG.getZeroExtendInReg(Op, dl, 10478e614322498f9b38995a6bf41100ca617180eacbNadav Rotem N->getOperand(0).getValueType().getScalarType()); 1048bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1049bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 105069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 105169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 105269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Expansion 105369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 105469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 105569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// ExpandIntegerResult - This method is called when the specified result of the 1056cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// specified node is found to need expansion. At this point, the node may also 1057cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// have invalid operands or may have other results that need promotion, we just 1058cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// know that (at least) one result needs expansion. 105969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) { 1060d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer result: "; N->dump(&DAG); dbgs() << "\n"); 1061475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 1062475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Lo = Hi = SDValue(); 1063cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1064cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // See if the target wants to custom expand this node. 1065f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 10661607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 1067cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1068cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (N->getOpcode()) { 1069cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: 1070cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#ifndef NDEBUG 1071d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerResult #" << ResNo << ": "; 1072d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 1073cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#endif 1074c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand the result of this operator!"); 107569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 107678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, Lo, Hi); break; 107778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break; 107878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break; 107978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break; 108078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1081bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: ExpandRes_BITCAST(N, Lo, Hi); break; 108278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break; 10834a307ecce68f90e0eebf1ded52b947816cdc2304Duncan Sands case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break; 108478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break; 108521c2972f7d24680f6475877a3398b7f8cf515b33Duncan Sands case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break; 108678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 108769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ANY_EXTEND: ExpandIntRes_ANY_EXTEND(N, Lo, Hi); break; 108895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands case ISD::AssertSext: ExpandIntRes_AssertSext(N, Lo, Hi); break; 108969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AssertZext: ExpandIntRes_AssertZext(N, Lo, Hi); break; 109005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::BSWAP: ExpandIntRes_BSWAP(N, Lo, Hi); break; 109105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::Constant: ExpandIntRes_Constant(N, Lo, Hi); break; 109205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTLZ: ExpandIntRes_CTLZ(N, Lo, Hi); break; 109305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTPOP: ExpandIntRes_CTPOP(N, Lo, Hi); break; 109405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTTZ: ExpandIntRes_CTTZ(N, Lo, Hi); break; 109569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: ExpandIntRes_FP_TO_SINT(N, Lo, Hi); break; 109669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_UINT: ExpandIntRes_FP_TO_UINT(N, Lo, Hi); break; 109769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::LOAD: ExpandIntRes_LOAD(cast<LoadSDNode>(N), Lo, Hi); break; 109805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::MUL: ExpandIntRes_MUL(N, Lo, Hi); break; 109905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SDIV: ExpandIntRes_SDIV(N, Lo, Hi); break; 110005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND: ExpandIntRes_SIGN_EXTEND(N, Lo, Hi); break; 110105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND_INREG: ExpandIntRes_SIGN_EXTEND_INREG(N, Lo, Hi); break; 110205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SREM: ExpandIntRes_SREM(N, Lo, Hi); break; 110305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::TRUNCATE: ExpandIntRes_TRUNCATE(N, Lo, Hi); break; 110405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UDIV: ExpandIntRes_UDIV(N, Lo, Hi); break; 110505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UREM: ExpandIntRes_UREM(N, Lo, Hi); break; 110605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::ZERO_EXTEND: ExpandIntRes_ZERO_EXTEND(N, Lo, Hi); break; 1107ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman case ISD::ATOMIC_LOAD: ExpandIntRes_ATOMIC_LOAD(N, Lo, Hi); break; 110869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 11098d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_ADD: 11108d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_SUB: 11118d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_AND: 11128d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_OR: 11138d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_XOR: 11148d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_NAND: 11158d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MIN: 11168d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MAX: 11178d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMIN: 11188d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMAX: 11198d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_SWAP: { 11208d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher std::pair<SDValue, SDValue> Tmp = ExpandAtomic(N); 11218d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher SplitInteger(Tmp.first, Lo, Hi); 11228d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher ReplaceValueWith(SDValue(N, 1), Tmp.second); 11238d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher break; 11248d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher } 11258d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher 1126cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::AND: 1127cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::OR: 112805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::XOR: ExpandIntRes_Logical(N, Lo, Hi); break; 112905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1130cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADD: 113105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUB: ExpandIntRes_ADDSUB(N, Lo, Hi); break; 113205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1133cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDC: 113405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBC: ExpandIntRes_ADDSUBC(N, Lo, Hi); break; 113505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1136cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDE: 113705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBE: ExpandIntRes_ADDSUBE(N, Lo, Hi); break; 113805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1139cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SHL: 1140cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SRA: 114105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: ExpandIntRes_Shift(N, Lo, Hi); break; 1142268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1143268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SADDO: 1144268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SSUBO: ExpandIntRes_SADDSUBO(N, Lo, Hi); break; 1145268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::UADDO: 1146268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::USUBO: ExpandIntRes_UADDSUBO(N, Lo, Hi); break; 1147362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher case ISD::UMULO: 1148362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher case ISD::SMULO: ExpandIntRes_XMULO(N, Lo, Hi); break; 1149cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1150d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1151cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If Lo/Hi is null, the sub-method took care of registering results etc. 1152ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Lo.getNode()) 1153475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SetExpandedInteger(SDValue(N, ResNo), Lo, Hi); 1154cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1155cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 115693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher/// Lower an atomic node to the appropriate builtin call. 115793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopherstd::pair <SDValue, SDValue> DAGTypeLegalizer::ExpandAtomic(SDNode *Node) { 115893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher unsigned Opc = Node->getOpcode(); 115993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher MVT VT = cast<AtomicSDNode>(Node)->getMemoryVT().getSimpleVT(); 116093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher RTLIB::Libcall LC; 116193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 116293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (Opc) { 116393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: 116493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher llvm_unreachable("Unhandled atomic intrinsic Expand!"); 116593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 116693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_SWAP: 116793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 116893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 116993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_1; break; 117093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_2; break; 117193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_4; break; 117293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_8; break; 117393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 117493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 117593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_CMP_SWAP: 117693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 117793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 117893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1; break; 117993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2; break; 118093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4; break; 118193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8; break; 118293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 118393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 118493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_ADD: 118593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 118693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 118793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_ADD_1; break; 118893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_ADD_2; break; 118993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_ADD_4; break; 119093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_ADD_8; break; 119193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 119293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 119393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_SUB: 119493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 119593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 119693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_SUB_1; break; 119793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_SUB_2; break; 119893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_SUB_4; break; 119993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_SUB_8; break; 120093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 120193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 120293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_AND: 120393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 120493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 120593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_AND_1; break; 120693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_AND_2; break; 120793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_AND_4; break; 120893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_AND_8; break; 120993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 121093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 121193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_OR: 121293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 121393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 121493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_OR_1; break; 121593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_OR_2; break; 121693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_OR_4; break; 121793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_OR_8; break; 121893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 121993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 122093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_XOR: 122193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 122293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 122393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_XOR_1; break; 122493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_XOR_2; break; 122593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_XOR_4; break; 122693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_XOR_8; break; 122793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 122893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 122993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_NAND: 123093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 123193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 123293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_NAND_1; break; 123393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_NAND_2; break; 123493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_NAND_4; break; 123593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_NAND_8; break; 123693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 123793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 123893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 123993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 124093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher return ExpandChainLibCall(LC, Node, false); 124193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher} 124293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 124305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftByConstant - N is a shift by a value that needs to be expanded, 124405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// and the shift amount is a constant 'Amt'. Expand the operation. 124505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandShiftByConstant(SDNode *N, unsigned Amt, 1246475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1247e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DebugLoc DL = N->getDebugLoc(); 124805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the incoming operand to be shifted, so that we have its parts 1249475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 125005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1251cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1252e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = InL.getValueType(); 125305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned VTBits = N->getValueType(0).getSizeInBits(); 125405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 1255e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = N->getOperand(1).getValueType(); 1256cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 125705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SHL) { 125805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 125905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = Hi = DAG.getConstant(0, NVT); 126005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 126105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 1262e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SHL, DL, 1263915eeb488786379250808d47668c43e010efe566Chris Lattner NVT, InL, DAG.getConstant(Amt-NVTBits, ShTy)); 126405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 126505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 126605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = InL; 1267104de6cf7b80ec5e9beb502a069f376810a0a1e3Richard Osborne } else if (Amt == 1 && 1268f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::ADDC, 126954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToExpandTo(*DAG.getContext(), NVT))) { 127005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Emit this X << 1 as X+X. 1271f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 1272475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { InL, InL }; 1273e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::ADDC, DL, VTList, LoOps, 2); 1274475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { InH, InH, Lo.getValue(1) }; 1275e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::ADDE, DL, VTList, HiOps, 3); 127605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1277e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SHL, DL, NVT, InL, DAG.getConstant(Amt, ShTy)); 1278e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::OR, DL, NVT, 1279e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 128005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1281e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 128205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 128305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 128405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1285cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1286cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 128705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SRL) { 128805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 128905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 129005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 129105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1292e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRL, DL, 1293786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InH, DAG.getConstant(Amt-NVTBits,ShTy)); 129405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 129505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 129605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 129705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 129805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1299e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1300e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 130105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1302e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 130305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1304e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRL, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 130505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 130605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1307cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1308d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 130905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 131005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 1311e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 131205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 131305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1314e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 131505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt-NVTBits, ShTy)); 1316e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 131705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 131805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 131905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 1320e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 132105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1322d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } else { 1323e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1324e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 132505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1326e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 132705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1328e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 1329d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } 1330d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands} 1331d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 133205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftWithKnownAmountBit - Try to determine whether we can simplify 133305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// this shift based on knowledge of the high bit of the shift amount. If we 133405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// can tell this, we know that it is >= 32 or < 32, without knowing the actual 133505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// shift amount. 133605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer:: 1337475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 1338475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt = N->getOperand(1); 133923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1340e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 13415b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned ShBits = ShTy.getScalarType().getSizeInBits(); 13425b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned NVTBits = NVT.getScalarType().getSizeInBits(); 134305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(isPowerOf2_32(NVTBits) && 134405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Expanded integer type size not a power of two!"); 1345786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1346cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 134705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt HighBitMask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 134805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt KnownZero, KnownOne; 134905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.ComputeMaskedBits(N->getOperand(1), HighBitMask, KnownZero, KnownOne); 1350cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 135105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we don't know anything about the high bits, exit. 135205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (((KnownZero|KnownOne) & HighBitMask) == 0) 135305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1354cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 135505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get the incoming operand to be shifted. 1356475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 135705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1358be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 135905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that any of the high bits of the shift amount are one, then we 136005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 136105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (KnownOne.intersects(HighBitMask)) { 136205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Mask out the high bit, which we know is set. 1363786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Amt = DAG.getNode(ISD::AND, dl, ShTy, Amt, 136405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(~HighBitMask, ShTy)); 136505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 136605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1367c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 136805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: 136905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); // Low part is zero. 1370786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 137105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 137205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 137305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // Hi part is zero. 1374786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 137505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 137605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: 1377786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 137805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1379786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 138005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 138105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 138205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 138305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 138428dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#if 0 138528dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman // FIXME: This code is broken for shifts with a zero amount! 138605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that all of the high bits of the shift amount are zero, then we 138705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 138805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if ((KnownZero & HighBitMask) == HighBitMask) { 138905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Compute 32-amt. 1390475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt2 = DAG.getNode(ISD::SUB, ShTy, 139105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits, ShTy), 139205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Amt); 139305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned Op1, Op2; 139405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1395c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 139605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: Op1 = ISD::SHL; Op2 = ISD::SRL; break; 139705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 139805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: Op1 = ISD::SRL; Op2 = ISD::SHL; break; 139905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 140005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 140105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getNode(N->getOpcode(), NVT, InL, Amt); 140205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getNode(ISD::OR, NVT, 140305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op1, NVT, InH, Amt), 140405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op2, NVT, InL, Amt2)); 140505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 140605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 140728dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#endif 140805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 140905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 141005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 141105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 14126fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// ExpandShiftWithUnknownAmountBit - Fully general expansion of integer shift 14136fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// of any size. 14146fb2168aaed06e4685d064b6f63dc4c668b42728Evan Chengbool DAGTypeLegalizer:: 14156fb2168aaed06e4685d064b6f63dc4c668b42728Evan ChengExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 14166fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Amt = N->getOperand(1); 141723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1418e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 14196fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng unsigned NVTBits = NVT.getSizeInBits(); 14206fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng assert(isPowerOf2_32(NVTBits) && 14216fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng "Expanded integer type size not a power of two!"); 14226fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DebugLoc dl = N->getDebugLoc(); 14236fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14246fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // Get the incoming operand to be shifted. 14256fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue InL, InH; 14266fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng GetExpandedInteger(N->getOperand(0), InL, InH); 14276fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14286fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue NVBitsNode = DAG.getConstant(NVTBits, ShTy); 14299993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtExcess = DAG.getNode(ISD::SUB, dl, ShTy, Amt, NVBitsNode); 14309993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtLack = DAG.getNode(ISD::SUB, dl, ShTy, NVBitsNode, Amt); 14319993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue isShort = DAG.getSetCC(dl, TLI.getSetCCResultType(ShTy), 14329993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Amt, NVBitsNode, ISD::SETULT); 14336fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14349993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue LoS, HiS, LoL, HiL; 14356fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng switch (N->getOpcode()) { 1436c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 14376fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SHL: 14389993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14399993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); 14409993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::OR, dl, NVT, 14416fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt), 144236236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 144336236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14449993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, AmtLack)); 14459993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14469993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14479993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getConstant(0, NVT); // Lo part is zero. 14489993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SHL, dl, NVT, InL, AmtExcess); // Hi from Lo part. 14496fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14509993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14519993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14526fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14536fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRL: 14549993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14559993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); 14569993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 14579993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 145836236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 145936236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14609993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 14619993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14629993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14639993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getConstant(0, NVT); // Hi part is zero. 14649993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRL, dl, NVT, InH, AmtExcess); // Lo from Hi part. 14659993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14669993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14679993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14686fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14696fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRA: 14709993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14719993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); 14729993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 14736fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 147436236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 147536236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14769993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 14779993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14789993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14799993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign of Hi part. 14809993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getConstant(NVTBits-1, ShTy)); 14819993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRA, dl, NVT, InH, AmtExcess); // Lo from Hi part. 14826fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14839993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14849993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14856fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14866fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 14876fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14886fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return false; 14896fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng} 14906fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 149105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUB(SDNode *N, 1492475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1493786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 149405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1495475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 149605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 149705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 149829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 1499e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHSL.getValueType(); 1500475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1501475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 150205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 150329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // Do not generate ADDC/ADDE or SUBC/SUBE if the target does not support 150429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // them. TODO: Teach operation legalization how to expand unsupported 150529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // ADDC/ADDE/SUBC/SUBE. The problem is that these operations generate 1506f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner // a carry of type MVT::Glue, but there doesn't seem to be any way to 150729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // generate a value of this type in the expanded code sequence. 150829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands bool hasCarry = 1509f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(N->getOpcode() == ISD::ADD ? 1510f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman ISD::ADDC : ISD::SUBC, 1511bc7a902713c4e3f13a93c383e647d2a18712f447Dan Gohman TLI.getTypeToExpandTo(*DAG.getContext(), NVT)); 151229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 151329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (hasCarry) { 1514f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 151529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1516786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 151729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1518786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 151929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1520786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 152129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1522786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 152329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 1524c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson return; 15255078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner } 1526c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson 15275078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner if (N->getOpcode() == ISD::ADD) { 15285078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::ADD, dl, NVT, LoOps, 2); 15295078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, HiOps, 2); 15305078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[0], 15315078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 15325078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry1 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp1, 15335078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 15345078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 15355078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[1], 15365078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 15375078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry2 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp2, 15385078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), Carry1); 15395078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, Carry2); 154005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 15415078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::SUB, dl, NVT, LoOps, 2); 15425078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, HiOps, 2); 15435078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp = 15445078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getSetCC(dl, TLI.getSetCCResultType(LoOps[0].getValueType()), 15455078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner LoOps[0], LoOps[1], ISD::SETULT); 15465078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Borrow = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, 15475078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 15485078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 15495078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, Hi, Borrow); 155005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 155105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 155205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 155305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBC(SDNode *N, 1554475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 155505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1556475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1557786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 155805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 155905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1560f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1561475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1562475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 156305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 156405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::ADDC) { 1565786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 156605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1567786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 156805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1569786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 157005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1571786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 157205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 157305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1574874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1575874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1576475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 157705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 157805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 157905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBE(SDNode *N, 1580475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 158105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1582475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1583786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 158405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 158505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1586f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1587475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, N->getOperand(2) }; 1588475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 158905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1590786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, VTList, LoOps, 3); 159105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1592786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, VTList, HiOps, 3); 159305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1594874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1595874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1596475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 159705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 1598fcd75e5efb482f35cfc22fd4b64e047930130fd6Eli Friedman 159962bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_MERGE_VALUES(SDNode *N, 1600fcd75e5efb482f35cfc22fd4b64e047930130fd6Eli Friedman SDValue &Lo, SDValue &Hi) { 160162bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman SDValue Res = DecomposeMERGE_VALUES(N); 160262bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman SplitInteger(Res, Lo, Hi); 160362bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman} 160405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 160505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ANY_EXTEND(SDNode *N, 1606475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 160723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1608786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1609475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 161005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 161105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The low part is any extension of the input (which degenerates to a copy). 1612786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ANY_EXTEND, dl, NVT, Op); 1613e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); // The high part is undefined. 161405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 161505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 161605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 161796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 161896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 161905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1620475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 162105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 162205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 162305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 162405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 162505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 162605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 162705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 162895db39a9de48f69f4d764335b492b83a698c7854Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertSext(SDNode *N, 1629475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1630786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 163195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1632e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1633e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 163495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned NVTBits = NVT.getSizeInBits(); 163595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned EVTBits = EVT.getSizeInBits(); 163695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 163795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands if (NVTBits < EVTBits) { 1638786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertSext, dl, NVT, Hi, 16394ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 16404ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng EVTBits - NVTBits))); 164195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } else { 1642786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertSext, dl, NVT, Lo, DAG.getValueType(EVT)); 164395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // The high part replicates the sign bit of Lo, make it explicit. 1644786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 164592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVTBits-1, TLI.getPointerTy())); 164695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } 164795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 164895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 164905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertZext(SDNode *N, 1650475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1651786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 165205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1653e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1654e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 165505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 165605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned EVTBits = EVT.getSizeInBits(); 165705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 165805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (NVTBits < EVTBits) { 1659786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertZext, dl, NVT, Hi, 1660285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 1661285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng EVTBits - NVTBits))); 166205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1663786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertZext, dl, NVT, Lo, DAG.getValueType(EVT)); 166405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part must be zero, make it explicit. 166505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 166605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 166705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 166805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 166905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_BSWAP(SDNode *N, 1670475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1671786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 167205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Hi, Lo); // Note swapped operands. 1673786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::BSWAP, dl, Lo.getValueType(), Lo); 1674786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::BSWAP, dl, Hi.getValueType(), Hi); 167505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 167605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 167705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Constant(SDNode *N, 1678475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 167923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 168005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NBitWidth = NVT.getSizeInBits(); 168105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const APInt &Cst = cast<ConstantSDNode>(N)->getAPIntValue(); 168240f8f6264d5af2c38e797e0dc59827cd231e8ff7Jay Foad Lo = DAG.getConstant(Cst.trunc(NBitWidth), NVT); 168305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(Cst.lshr(NBitWidth).trunc(NBitWidth), NVT); 168405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 168505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 168605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTLZ(SDNode *N, 1687475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1688786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 168905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctlz (HiLo) -> Hi != 0 ? ctlz(Hi) : (ctlz(Lo)+32) 169005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1691e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 169205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1693786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Hi, 1694ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 169505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1696786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Lo); 1697786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Hi); 169805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1699786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, HiNotZero, HiLZ, 1700786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, LoLZ, 170105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 170205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 170305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 170405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 170505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTPOP(SDNode *N, 1706475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1707786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 170805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctpop(HiLo) -> ctpop(Hi)+ctpop(Lo) 170905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1710e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1711b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, DAG.getNode(ISD::CTPOP, dl, NVT, Lo), 1712786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::CTPOP, dl, NVT, Hi)); 171305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 171405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 171505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 171605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTTZ(SDNode *N, 1717475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1718786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 171905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // cttz (HiLo) -> Lo != 0 ? cttz(Lo) : (cttz(Hi)+32) 172005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1721e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 172205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1723786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, 1724ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 172505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1726786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Lo); 1727786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Hi); 172805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1729786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, LoNotZero, LoLZ, 1730786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, HiLZ, 173105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 173205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 173305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 173405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1735475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo, 1736475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1737c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1738e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1739475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1740b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT); 1741be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!"); 1742c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, true/*irrelevant*/, dl), Lo, Hi); 1743ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1744ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 1745475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo, 1746475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1747c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1748e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1749475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1750b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Op.getValueType(), VT); 1751be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 1752c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, false/*irrelevant*/, dl), Lo, Hi); 1753ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1754ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 175569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N, 1756475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1757ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalLoad(N)) { 1758ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands ExpandRes_NormalLoad(N, Lo, Hi); 175978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands return; 176078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands } 176178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 176278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 176378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1764e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 176523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1766475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 1767475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 1768cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::LoadExtType ExtType = N->getExtensionType(); 1769cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 1770cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 17711e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1772786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1773cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 177478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 1775cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 177678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 17778a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 1778cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1779a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 17801e559443a17d1b335f697551c6263ba60d5dd827David Greene MemVT, isVolatile, isNonTemporal, Alignment); 1781cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1782cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Remember the chain. 1783cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Ch = Lo.getValue(1); 1784cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1785cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExtType == ISD::SEXTLOAD) { 1786cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is obtained by SRA'ing all but one of the bits of the 1787cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // lo part. 178883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 1789786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 179092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 1791cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (ExtType == ISD::ZEXTLOAD) { 1792cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is just a zero. 1793cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = DAG.getConstant(0, NVT); 1794cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1795cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(ExtType == ISD::EXTLOAD && "Unknown extload!"); 1796cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is undefined. 1797e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); 1798cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1799cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 1800cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 1801ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getLoad(NVT, dl, Ch, Ptr, N->getPointerInfo(), 18021e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1803cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1804cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 180583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 180623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 1807cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1808cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 180983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1810786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 18110bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1812a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, 1813ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), NEVT, 18141e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 18151e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1816cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1817cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1818cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1819825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1820cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1821cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1822cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned loads at 1823cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 18248a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 18254e918b2c8ca81edd63f6708e08835b2c14648615Dan Gohman unsigned EBytes = MemVT.getStoreSize(); 182683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1827cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 1828cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1829cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load both the high bits and maybe some of the low bits. 1830a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 18318a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT::getIntegerVT(*DAG.getContext(), 18328a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman MemVT.getSizeInBits() - ExcessBits), 18331e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1834cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1835cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 1836786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 18370bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1838cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load the rest of the low bits. 1839a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr, 1840ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 184123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 18421e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 18431e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1844cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1845cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1846cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1847825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1848cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1849cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 185083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 1851cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer low bits from the bottom of Hi to the top of Lo. 1852786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, Lo, 1853786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, Hi, 1854cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 185592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 1856cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Move high bits to the right position in Hi. 18577fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ExtType == ISD::SEXTLOAD ? ISD::SRA : ISD::SRL, dl, 1858786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, Hi, 185983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 186092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 1861cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1862cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1863cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1864cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Legalized the chain result - switch anything that used the old chain to 1865cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // use the new one. 1866475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Ch); 1867cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1868cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 186969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Logical(SDNode *N, 1870475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1871786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1872475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 187369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 187469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 1875786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LL, RL); 1876786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LH, RH); 1877cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1878cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 187905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N, 1880475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1881e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 188223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1883c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 188469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1885f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, NVT); 1886f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, NVT); 1887f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, NVT); 1888f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, NVT); 1889cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 1890475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 189169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 189269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 189383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned OuterBitSize = VT.getSizeInBits(); 1894e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands unsigned InnerBitSize = NVT.getSizeInBits(); 1895cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned LHSSB = DAG.ComputeNumSignBits(N->getOperand(0)); 1896cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned RHSSB = DAG.ComputeNumSignBits(N->getOperand(1)); 189769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1898e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 1899e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (DAG.MaskedValueIsZero(N->getOperand(0), HighMask) && 1900e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands DAG.MaskedValueIsZero(N->getOperand(1), HighMask)) { 1901cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The inputs are both zero-extended. 1902cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1903cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a umul_lohi. 1904786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::UMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1905ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1906cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1907cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1908cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU) { 1909cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhu+mul. 1910786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1911786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1912cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1913cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1914cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1915e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 1916cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The input values are both sign-extended. 1917cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasSMUL_LOHI) { 1918cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a smul_lohi. 1919786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1920ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1921cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1922cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1923cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHS) { 1924cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhs+mul. 1925786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1926786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHS, dl, NVT, LL, RL); 1927cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1928cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1929cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1930cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1931cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Lo,Hi = umul LHS, RHS. 1932786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, dl, 1933cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getVTList(NVT, NVT), LL, RL); 1934cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Lo = UMulLOHI; 1935cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = UMulLOHI.getValue(1); 1936786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1937786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1938786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1939786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1940cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1941cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1942e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (HasMULHU) { 1943786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1944786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1945786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1946786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1947786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1948786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1949e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands return; 1950e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands } 1951cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 195241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1953cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If nothing else, we can make a libcall. 19545ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1955825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 195615c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::MUL_I16; 1957825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 19585ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I32; 1959825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 1960e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands LC = RTLIB::MUL_I64; 1961825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 19625ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I128; 19635ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"); 1964e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands 1965475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1966c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true/*irrelevant*/, dl), Lo, Hi); 196741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1968cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1969268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_SADDSUBO(SDNode *Node, 1970268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 1971268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = Node->getOperand(0); 1972268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = Node->getOperand(1); 1973268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = Node->getDebugLoc(); 1974268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1975268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 1976268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 1977268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(Node->getOpcode() == ISD::SADDO ? 1978268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 1979268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 1980268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 1981268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1982268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Compute the overflow. 1983268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1984268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // LHSSign -> LHS >= 0 1985268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // RHSSign -> RHS >= 0 1986268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // SumSign -> Sum >= 0 1987268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1988268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Add: 1989268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign == RHSSign) && (LHSSign != SumSign) 1990268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Sub: 1991268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign != RHSSign) && (LHSSign != SumSign) 1992268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1993268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman EVT OType = Node->getValueType(1); 1994268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Zero = DAG.getConstant(0, LHS.getValueType()); 1995268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1996268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHSSign = DAG.getSetCC(dl, OType, LHS, Zero, ISD::SETGE); 1997268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHSSign = DAG.getSetCC(dl, OType, RHS, Zero, ISD::SETGE); 1998268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SignsMatch = DAG.getSetCC(dl, OType, LHSSign, RHSSign, 1999268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman Node->getOpcode() == ISD::SADDO ? 2000268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETEQ : ISD::SETNE); 2001268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2002268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSign = DAG.getSetCC(dl, OType, Sum, Zero, ISD::SETGE); 2003268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSignNE = DAG.getSetCC(dl, OType, LHSSign, SumSign, ISD::SETNE); 2004268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2005268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Cmp = DAG.getNode(ISD::AND, dl, OType, SignsMatch, SumSignNE); 2006268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2007268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2008268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(Node, 1), Cmp); 2009268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2010268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 201169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N, 2012475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2013e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2014c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 20155ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 20165ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2017825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2018a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SDIV_I16; 2019825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 20205ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I32; 2021825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 20225ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I64; 2023825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 20245ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I128; 20255ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!"); 20265ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 2027475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2028c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 2029ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 2030ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 203169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N, 2032475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2033e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2034c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 203569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 203669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // If we can emit an efficient shift operation, do so now. Check to see if 2037cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the RHS is a constant. 2038cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1))) 2039f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman return ExpandShiftByConstant(N, CN->getZExtValue(), Lo, Hi); 2040cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2041cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If we can determine that the high bit of the shift is zero or one, even if 2042cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the low bits are variable, emit this shift in an optimized form. 2043cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExpandShiftWithKnownAmountBit(N, Lo, Hi)) 2044cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 204569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2046cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this target supports shift_PARTS, use it. First, map to the _PARTS opc. 2047cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned PartsOpc; 204841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 2049cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SHL_PARTS; 205041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 2051cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRL_PARTS; 205241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 2053cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 2054cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRA_PARTS; 2055cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 205669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2057cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Next check to see if the target supports this SHL_PARTS operation or if it 2058cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // will custom expand it. 205923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2060cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::LegalizeAction Action = TLI.getOperationAction(PartsOpc, NVT); 2061cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 2062cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Action == TargetLowering::Custom) { 2063cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Expand the subcomponents. 2064475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 206569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 206669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2067475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, N->getOperand(1) }; 2068e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = LHSL.getValueType(); 2069fc1665793e62eb4f26d24b8a19eecf59cd872e2aDan Gohman Lo = DAG.getNode(PartsOpc, dl, DAG.getVTList(VT, VT), Ops, 3); 2070cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = Lo.getValue(1); 2071cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2072cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 207341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2074cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Otherwise, emit a libcall. 2075dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 207641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands bool isSigned; 207741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 207841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; /*sign irrelevant*/ 2079825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 208015c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SHL_I16; 2081825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2082dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I32; 2083825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2084dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I64; 2085825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2086dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I128; 208741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 208841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; 2089825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 209015c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRL_I16; 2091825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2092dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I32; 2093825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2094dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I64; 2095825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2096dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I128; 209741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 209841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 209941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = true; 2100825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 210115c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRA_I16; 2102825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2103dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I32; 2104825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2105dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I64; 2106825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2107dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I128; 210841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } 21098c899ee031481dbece5f111379a274c848cb5902Duncan Sands 21106fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (LC != RTLIB::UNKNOWN_LIBCALL && TLI.getLibcallName(LC)) { 21116fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 21126fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SplitInteger(MakeLibCall(LC, VT, Ops, 2, isSigned, dl), Lo, Hi); 21136fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return; 21146fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 211541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 21166fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (!ExpandShiftWithUnknownAmountBit(N, Lo, Hi)) 2117c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unsupported shift!"); 211841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 2119cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 212005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SIGN_EXTEND(SDNode *N, 2121475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 212223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2123786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2124475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 212505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2126b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is sign extension of the input (degenerates to a copy). 2127786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND, dl, NVT, N->getOperand(0)); 212805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part is obtained by SRA'ing all but one of the bits of low part. 212905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned LoSize = NVT.getSizeInBits(); 2130786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 213192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 213205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 213305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 213405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 213596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 213696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 213705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2138475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 213905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 214005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 214105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 214205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 214305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 214405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2145786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 2146285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 2147285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng ExcessBits))); 214805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 214905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 215005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 215105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer:: 2152475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi) { 2153786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 215469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 2155e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 2156d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 215705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (EVT.bitsLE(Lo.getValueType())) { 215805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the low part if needed. 2159786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Lo.getValueType(), Lo, 216005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(1)); 2161d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 216205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part gets the sign extension from the lo-part. This handles 216305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // things like sextinreg V:i64 from i8. 2164786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, Hi.getValueType(), Lo, 216505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Hi.getValueType().getSizeInBits()-1, 216692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 216705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 216805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. Leave the low part alone, 216905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the high part. 217005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 217105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands EVT.getSizeInBits() - Lo.getValueType().getSizeInBits(); 2172786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 217354e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 217454e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits))); 217505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 217605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2177d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 217805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N, 2179475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2180e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2181c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 218205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 218305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2184825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2185a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SREM_I16; 2186825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 218705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I32; 2188825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 218905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I64; 2190825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 219105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I128; 219205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!"); 219305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2194475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2195c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 2196d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2197d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 219805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N, 2199475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 220023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2201786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2202786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::TRUNCATE, dl, NVT, N->getOperand(0)); 2203786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, 2204786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getOperand(0).getValueType(), N->getOperand(0), 220592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVT.getSizeInBits(), TLI.getPointerTy())); 2206786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::TRUNCATE, dl, NVT, Hi); 2207d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2208d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2209268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_UADDSUBO(SDNode *N, 2210268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 2211268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = N->getOperand(0); 2212268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = N->getOperand(1); 2213268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = N->getDebugLoc(); 2214268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2215268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 2216268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 2217268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(N->getOpcode() == ISD::UADDO ? 2218268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 2219268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 2220268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 2221268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2222268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Calculate the overflow: addition overflows iff a + b < a, and subtraction 2223268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // overflows iff a - b > a. 2224268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Sum, LHS, 2225268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman N->getOpcode () == ISD::UADDO ? 2226268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETULT : ISD::SETUGT); 2227268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2228268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2229268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(N, 1), Ofl); 2230268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2231268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2232362fee90b9a1d64ac091755466caf6a94ade22ebEric Christophervoid DAGTypeLegalizer::ExpandIntRes_XMULO(SDNode *N, 2233362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue &Lo, SDValue &Hi) { 2234362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT VT = N->getValueType(0); 2235db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *RetTy = VT.getTypeForEVT(*DAG.getContext()); 2236362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT PtrVT = TLI.getPointerTy(); 2237db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *PtrTy = PtrVT.getTypeForEVT(*DAG.getContext()); 2238362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DebugLoc dl = N->getDebugLoc(); 2239362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2240a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // A divide for UMULO should be faster than a function call. 2241a3071455e540530ecb644a2e59098129f70ce705Eric Christopher if (N->getOpcode() == ISD::UMULO) { 2242a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 2243a3071455e540530ecb644a2e59098129f70ce705Eric Christopher DebugLoc DL = N->getDebugLoc(); 2244a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2245a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue MUL = DAG.getNode(ISD::MUL, DL, LHS.getValueType(), LHS, RHS); 2246a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SplitInteger(MUL, Lo, Hi); 2247a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2248a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // A divide for UMULO will be faster than a function call. Select to 2249a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // make sure we aren't using 0. 2250a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue isZero = DAG.getSetCC(dl, TLI.getSetCCResultType(VT), 2251a3071455e540530ecb644a2e59098129f70ce705Eric Christopher RHS, DAG.getConstant(0, VT), ISD::SETNE); 2252a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue NotZero = DAG.getNode(ISD::SELECT, dl, VT, isZero, 2253a3071455e540530ecb644a2e59098129f70ce705Eric Christopher DAG.getConstant(1, VT), RHS); 2254a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue DIV = DAG.getNode(ISD::UDIV, DL, LHS.getValueType(), MUL, NotZero); 2255a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue Overflow; 2256a3071455e540530ecb644a2e59098129f70ce705Eric Christopher Overflow = DAG.getSetCC(DL, N->getValueType(1), DIV, LHS, ISD::SETNE); 2257a3071455e540530ecb644a2e59098129f70ce705Eric Christopher ReplaceValueWith(SDValue(N, 1), Overflow); 2258a3071455e540530ecb644a2e59098129f70ce705Eric Christopher return; 2259a3071455e540530ecb644a2e59098129f70ce705Eric Christopher } 2260a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 22615e687ac6158bc28f1831699d7dbfa39d3120b892Eric Christopher // Replace this with a libcall that will check overflow. 2262362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2263362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher if (VT == MVT::i32) 2264362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I32; 2265362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher else if (VT == MVT::i64) 2266362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I64; 2267362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher else if (VT == MVT::i128) 2268362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I128; 2269362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported XMULO!"); 2270362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2271362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Temp = DAG.CreateStackTemporary(PtrVT); 2272362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Temporary for the overflow value, default it to zero. 2273362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Chain = DAG.getStore(DAG.getEntryNode(), dl, 2274362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DAG.getConstant(0, PtrVT), Temp, 2275362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher MachinePointerInfo(), false, false, 0); 2276362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2277362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TargetLowering::ArgListTy Args; 2278362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TargetLowering::ArgListEntry Entry; 2279362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { 2280362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT ArgVT = N->getOperand(i).getValueType(); 2281db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *ArgTy = ArgVT.getTypeForEVT(*DAG.getContext()); 2282362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Node = N->getOperand(i); 2283362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Ty = ArgTy; 2284362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isSExt = true; 2285362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isZExt = false; 2286362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Args.push_back(Entry); 2287362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher } 2288362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2289362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Also pass the address of the overflow check. 2290362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Node = Temp; 2291362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Ty = PtrTy->getPointerTo(); 2292362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isSExt = true; 2293362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isZExt = false; 2294362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Args.push_back(Entry); 2295362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2296362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Func = DAG.getExternalSymbol(TLI.getLibcallName(LC), PtrVT); 2297362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher std::pair<SDValue, SDValue> CallInfo = 2298362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TLI.LowerCallTo(Chain, RetTy, true, false, false, false, 2299362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 0, TLI.getLibcallCallingConv(LC), false, 2300362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher true, Func, Args, DAG, dl); 2301362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2302362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SplitInteger(CallInfo.first, Lo, Hi); 2303362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Temp2 = DAG.getLoad(PtrVT, dl, CallInfo.second, Temp, 2304362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher MachinePointerInfo(), false, false, 0); 2305362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Temp2, 2306362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DAG.getConstant(0, PtrVT), 2307362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher ISD::SETNE); 2308362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Use the overflow from the libcall everywhere. 2309362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher ReplaceValueWith(SDValue(N, 1), Ofl); 2310362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher} 2311362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 231205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N, 2313475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2314e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2315c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2316d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 231705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2318825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2319a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UDIV_I16; 2320825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 232105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I32; 2322825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 232305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I64; 2324825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 232505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I128; 232605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!"); 2327d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2328475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2329c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2330d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2331cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 233205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N, 2333475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2334e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2335c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 233669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 233705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2338825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2339a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UREM_I16; 2340825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 234105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I32; 2342825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 234305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I64; 2344825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 234505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I128; 234605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!"); 2347cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2348475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2349c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2350cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2351cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 235205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N, 2353475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 235423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2355786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2356475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 235705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2358b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is zero extension of the input (degenerates to a copy). 2359786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N->getOperand(0)); 236005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // The high part is just a zero. 236105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 236205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 236305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 236496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 236596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 236605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2367475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 236805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 236905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 237005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 237105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 237205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 237305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2374adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng Hi = DAG.getZeroExtendInReg(Hi, dl, 237554e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher EVT::getIntegerVT(*DAG.getContext(), 237654e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits)); 23779e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman } 2378cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2379cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2380ba567d670d32e102a70b106fbfe284835085cb3fEli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_ATOMIC_LOAD(SDNode *N, 2381ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue &Lo, SDValue &Hi) { 2382ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman DebugLoc dl = N->getDebugLoc(); 2383ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman EVT VT = cast<AtomicSDNode>(N)->getMemoryVT(); 2384ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Zero = DAG.getConstant(0, VT); 2385ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Swap = DAG.getAtomic(ISD::ATOMIC_CMP_SWAP, dl, VT, 2386ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(0), 2387ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(1), Zero, Zero, 2388ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemOperand(), 2389ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getOrdering(), 2390ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getSynchScope()); 2391ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman ReplaceValueWith(SDValue(N, 0), Swap.getValue(0)); 2392ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman ReplaceValueWith(SDValue(N, 1), Swap.getValue(1)); 2393ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman} 2394cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2395cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 239669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Operand Expansion 2397cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2398cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 239905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandIntegerOperand - This method is called when the specified operand of 240005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// the specified node is found to need expansion. At this point, all of the 240105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// result types of the node are known to be legal, but other operands of the 240205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// node may need promotion or expansion as well as the specified one. 240305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer::ExpandIntegerOperand(SDNode *N, unsigned OpNo) { 2404d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer operand: "; N->dump(&DAG); dbgs() << "\n"); 2405475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 2406051bb7b07504be9f848f7cce802e62ed24980bc5Duncan Sands 2407f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 2408bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 240911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands 2410bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 2411bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 241205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #ifndef NDEBUG 2413d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerOperand Op #" << OpNo << ": "; 2414d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 241505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #endif 2416c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand this operator's operand!"); 2417bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta 2418bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = ExpandOp_BITCAST(N); break; 241992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BR_CC: Res = ExpandIntOp_BR_CC(N); break; 242092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break; 2421bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break; 2422bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: Res = ExpandOp_INSERT_VECTOR_ELT(N); break; 2423bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SCALAR_TO_VECTOR: Res = ExpandOp_SCALAR_TO_VECTOR(N); break; 242492abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SELECT_CC: Res = ExpandIntOp_SELECT_CC(N); break; 242592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SETCC: Res = ExpandIntOp_SETCC(N); break; 242692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SINT_TO_FP: Res = ExpandIntOp_SINT_TO_FP(N); break; 242792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::STORE: Res = ExpandIntOp_STORE(cast<StoreSDNode>(N), OpNo); break; 242892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::TRUNCATE: Res = ExpandIntOp_TRUNCATE(N); break; 242992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::UINT_TO_FP: Res = ExpandIntOp_UINT_TO_FP(N); break; 243055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 243155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 243255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 243355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 243455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 24351c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::ROTR: Res = ExpandIntOp_Shift(N); break; 24361c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::RETURNADDR: 24371c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::FRAMEADDR: Res = ExpandIntOp_RETURNADDR(N); break; 2438ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2439ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman case ISD::ATOMIC_STORE: Res = ExpandIntOp_ATOMIC_STORE(N); break; 244005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 244169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 244205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If the result is null, the sub-method took care of registering results etc. 2443ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Res.getNode()) return false; 244447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 244547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 244647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 244747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 244805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 2449cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 245005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 245105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Invalid operand expansion"); 245205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2453475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 245405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 2455cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2456cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 245711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// IntegerExpandSetCCOperands - Expand the operands of a comparison. This code 245811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// is shared among BR_CC, SELECT_CC, and SETCC handlers. 2459475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::IntegerExpandSetCCOperands(SDValue &NewLHS, 2460475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &NewRHS, 2461c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen ISD::CondCode &CCCode, 2462c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl) { 2463475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 246469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewLHS, LHSLo, LHSHi); 246569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewRHS, RHSLo, RHSHi); 246641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2467cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (CCCode == ISD::SETEQ || CCCode == ISD::SETNE) { 246811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (RHSLo == RHSHi) { 246911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) { 2470cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (RHSCST->isAllOnesValue()) { 2471cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Equality comparison to -1. 24727fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands NewLHS = DAG.getNode(ISD::AND, dl, 2473786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHSLo.getValueType(), LHSLo, LHSHi); 2474cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSLo; 2475cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2476cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 247711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 247811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 247969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2480786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSLo, RHSLo); 2481786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewRHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSHi, RHSHi); 2482786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::OR, dl, NewLHS.getValueType(), NewLHS, NewRHS); 2483cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 2484cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2485cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 248669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2487cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this is a comparison of the sign bit, just look at the top part. 2488cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // X > -1, x < 0 2489cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(NewRHS)) 2490002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((CCCode == ISD::SETLT && CST->isNullValue()) || // X < 0 2491cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETGT && CST->isAllOnesValue())) { // X > -1 2492cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = LHSHi; 2493cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSHi; 2494cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2495cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 249669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2497cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // FIXME: This generated code sucks. 2498cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::CondCode LowCC; 2499cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (CCCode) { 2500c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer setcc!"); 2501cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLT: 2502cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULT: LowCC = ISD::SETULT; break; 2503cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGT: 2504cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2505cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLE: 2506cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULE: LowCC = ISD::SETULE; break; 2507cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGE: 2508cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2509cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 251069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2511cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2512cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2513cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 251469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2515cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // NOTE: on targets without efficient SELECT of bools, we can always use 2516cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 251778d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, true, NULL); 2518475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2; 25195480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo.getValueType()), 2520ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSLo, RHSLo, LowCC, false, DagCombineInfo, dl); 2521ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 2522786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()), 25235480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSLo, RHSLo, LowCC); 25245480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2525ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, CCCode, false, DagCombineInfo, dl); 2526ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 2527786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp2 = DAG.getNode(ISD::SETCC, dl, 2528786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(LHSHi.getValueType()), 25295480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, DAG.getCondCode(CCCode)); 253069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2531ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 2532ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 2533002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 2534002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 2535cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 2536cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 2537002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 2538cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 2539cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 2540cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // low part is known false, returns high part. 2541cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LE / GE, if high part is known false, ignore the low part. 2542cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LT / GT, if high part is known true, ignore the low part. 2543cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = Tmp2; 2544475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2545cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2546cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 254769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 25485480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands NewLHS = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2549fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel LHSHi, RHSHi, ISD::SETEQ, false, 2550ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen DagCombineInfo, dl); 2551ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!NewLHS.getNode()) 2552786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()), 25535480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, ISD::SETEQ); 2554786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::SELECT, dl, Tmp1.getValueType(), 2555cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS, Tmp1, Tmp2); 2556475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2557cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2558cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2559475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_BR_CC(SDNode *N) { 2560475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3); 256105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get(); 2562c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 256305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 256405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 256505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2566ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 256705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 256805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 256905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 257005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 257105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2572027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 257305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode), NewLHS, NewRHS, 2574027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(4)), 0); 257505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 257605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2577475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SELECT_CC(SDNode *N) { 2578475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 257905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get(); 2580c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 258105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 258205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 258305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2584ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 258505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 258605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 258705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 258805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 258905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2590027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 259105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(2), N->getOperand(3), 2592027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 259305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 259405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2595475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SETCC(SDNode *N) { 2596475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 259705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get(); 2598c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 259905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 260005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, use it. 2601ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 260205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(NewLHS.getValueType() == N->getValueType(0) && 260305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Unexpected setcc expansion!"); 260405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return NewLHS; 260505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 260605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 260705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, update N to have the operands specified. 2608027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 2609027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 261005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 261105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 261255467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::ExpandIntOp_Shift(SDNode *N) { 261355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // The value being shifted is legal, but the shift amount is too big. 261455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // It follows that either the result of the shift is undefined, or the 261555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // upper half of the shift amount is zero. Just use the lower half. 261655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta SDValue Lo, Hi; 261755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta GetExpandedInteger(N->getOperand(1), Lo, Hi); 2618027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Lo), 0); 261955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 262055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 26211c3436a67afcfaee5f972836ff1ffff2985adce1Anton KorobeynikovSDValue DAGTypeLegalizer::ExpandIntOp_RETURNADDR(SDNode *N) { 26221c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // The argument of RETURNADDR / FRAMEADDR builtin is 32 bit contant. This 26231c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // surely makes pretty nice problems on 8/16 bit targets. Just truncate this 26241c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // constant to valid type. 26251c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov SDValue Lo, Hi; 26261c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov GetExpandedInteger(N->getOperand(0), Lo, Hi); 2627027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, Lo), 0); 26281c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov} 26291c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov 2630475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) { 2631475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2632e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2633b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT); 263405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 263505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this SINT_TO_FP!"); 2636c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, N->getDebugLoc()); 263705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 263805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2639475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) { 2640ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalStore(N)) 2641ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands return ExpandOp_NormalStore(N, OpNo); 264278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 264378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 2644cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(OpNo == 1 && "Can only expand the stored value so far"); 2645cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2646e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getOperand(1).getValueType(); 264723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2648475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 2649475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 2650cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 2651cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 26521e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 2653786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2654475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2655cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2656a1ace76c70ae5332d6f33fce5c0c1e2fdb8cca11Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 2657cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 265878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 265969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2660ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 26611e559443a17d1b335f697551c6263ba60d5dd827David Greene N->getMemoryVT(), isVolatile, isNonTemporal, 26621e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 2663ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2664bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck 2665ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (TLI.isLittleEndian()) { 2666cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 266769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2668cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2669ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 26701e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 2671cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2672cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 267383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 267423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 2675cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2676cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 267783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2678786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 26790bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2680ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, 2681ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2682ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NEVT, isVolatile, isNonTemporal, 26831e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 2684825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2685ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2686cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2687ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Big-endian - high bits are at low addresses. Favor aligned stores at 2688ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // the cost of some bit-fiddling. 2689ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner GetExpandedInteger(N->getValue(), Lo, Hi); 2690ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2691ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT ExtVT = N->getMemoryVT(); 2692ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned EBytes = ExtVT.getStoreSize(); 2693ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned IncrementSize = NVT.getSizeInBits()/8; 2694ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 2695ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT HiVT = EVT::getIntegerVT(*DAG.getContext(), 2696ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner ExtVT.getSizeInBits() - ExcessBits); 2697ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2698ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (ExcessBits < NVT.getSizeInBits()) { 2699ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Transfer high bits from the top of Lo to the bottom of Hi. 2700ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::SHL, dl, NVT, Hi, 2701ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 2702ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy())); 2703ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::OR, dl, NVT, Hi, 2704ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getNode(ISD::SRL, dl, NVT, Lo, 2705ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(ExcessBits, 2706ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy()))); 2707cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2708ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2709ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store both the high bits and maybe some of the low bits. 2710ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getPointerInfo(), 2711ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner HiVT, isVolatile, isNonTemporal, Alignment); 2712ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2713ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Increment the pointer to the other half. 2714ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 2715ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getIntPtrConstant(IncrementSize)); 2716ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store the lowest ExcessBits bits in the second half. 2717ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getTruncStore(Ch, dl, Lo, Ptr, 2718ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2719ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 2720ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner isVolatile, isNonTemporal, 2721ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MinAlign(Alignment, IncrementSize)); 2722ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2723cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 272405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2725475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_TRUNCATE(SDNode *N) { 2726475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 272705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 272805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Just truncate the low part of the source. 2729786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), InL); 273005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 273105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 27328d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesenstatic const fltSemantics *EVTToAPFloatSemantics(EVT VT) { 27338d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen switch (VT.getSimpleVT().SimpleTy) { 27348d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen default: llvm_unreachable("Unknown FP format"); 27358d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f32: return &APFloat::IEEEsingle; 27368d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f64: return &APFloat::IEEEdouble; 27378d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f80: return &APFloat::x87DoubleExtended; 27388d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f128: return &APFloat::IEEEquad; 27398d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::ppcf128: return &APFloat::PPCDoubleDouble; 27408d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen } 27418d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen} 27428d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen 2743475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) { 2744475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2745e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SrcVT = Op.getValueType(); 2746e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2747c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 274805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 27498d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // The following optimization is valid only if every value in SrcVT (when 27508d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // treated as signed) is representable in DstVT. Check that the mantissa 27518d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // size of DstVT is >= than the number of bits in SrcVT -1. 27528d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen const fltSemantics *sem = EVTToAPFloatSemantics(DstVT); 27538d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen if (APFloat::semanticsPrecision(*sem) >= SrcVT.getSizeInBits()-1 && 27548d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen TLI.getOperationAction(ISD::SINT_TO_FP, SrcVT) == TargetLowering::Custom){ 275505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Do a signed conversion then adjust the result. 2756786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SignedConv = DAG.getNode(ISD::SINT_TO_FP, dl, DstVT, Op); 275705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SignedConv = TLI.LowerOperation(SignedConv, DAG); 275805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 275905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The result of the signed conversion needs adjusting if the 'sign bit' of 276005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // the incoming integer was set. To handle this, we dynamically test to see 276105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // if it is set, and, if so, add a fudge factor. 276205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 276305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE32 = 0x4F800000ULL; 276405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE64 = 0x5F800000ULL; 276505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE128 = 0x7F800000ULL; 276605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 276705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt FF(32, 0); 2768825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (SrcVT == MVT::i32) 276905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE32); 2770825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i64) 277105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE64); 2772825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i128) 277305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE128); 277405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else 277505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(false && "Unsupported UINT_TO_FP!"); 277605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 277705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Check whether the sign bit is set. 2778475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 277905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(Op, Lo, Hi); 27807fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue SignSet = DAG.getSetCC(dl, 2781786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(Hi.getValueType()), 27825480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Hi, DAG.getConstant(0, Hi.getValueType()), 2783ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands ISD::SETLT); 278405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 278505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Build a 64 bit pair (0, FF) in the constant pool, with FF in the lo bits. 2786001dbfebcbbded8c8e74b19e838b50da2b6c6fb5Owen Anderson SDValue FudgePtr = DAG.getConstantPool( 2787eed707b1e6097aac2bb6b3d47271f6300ace7f2eOwen Anderson ConstantInt::get(*DAG.getContext(), FF.zext(64)), 278849c18cce976c158e86f54c681dff21bb81640fb8Duncan Sands TLI.getPointerTy()); 278905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 279005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get a pointer to FF if the sign bit was set, or to 0 otherwise. 2791475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0); 2792475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Four = DAG.getIntPtrConstant(4); 279305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.isBigEndian()) std::swap(Zero, Four); 2794786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Offset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), SignSet, 2795ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands Zero, Four); 27961606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(FudgePtr)->getAlignment(); 2797786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen FudgePtr = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), FudgePtr, Offset); 279887a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 279905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 280005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Load the value out, extending it from f32 to the destination float type. 280105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // FIXME: Avoid the extend by constructing the right constant pool? 2802a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Fudge = DAG.getExtLoad(ISD::EXTLOAD, dl, DstVT, DAG.getEntryNode(), 28033d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner FudgePtr, 28043d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MachinePointerInfo::getConstantPool(), 28053d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MVT::f32, 28061e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, Alignment); 2807786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::FADD, dl, DstVT, SignedConv, Fudge); 280805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 280905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 281005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, use a libcall. 2811b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT); 281205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 281305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this UINT_TO_FP!"); 2814c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, dl); 281505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2816fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2817ba567d670d32e102a70b106fbfe284835085cb3fEli FriedmanSDValue DAGTypeLegalizer::ExpandIntOp_ATOMIC_STORE(SDNode *N) { 2818ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman DebugLoc dl = N->getDebugLoc(); 2819ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Swap = DAG.getAtomic(ISD::ATOMIC_SWAP, dl, 2820ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemoryVT(), 2821ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(0), 2822ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(1), N->getOperand(2), 2823ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemOperand(), 2824ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getOrdering(), 2825ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getSynchScope()); 2826ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman return Swap.getValue(1); 2827ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman} 2828ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2829ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2830fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N) { 2831fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue InOp0 = N->getOperand(0); 2832fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InVT = InOp0.getValueType(); 2833fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2834fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2835fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2836fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 28375b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem unsigned OutNumElems = OutVT.getVectorNumElements(); 2838fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2839fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2840fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2841fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue BaseIdx = N->getOperand(1); 2842fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2843fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 28445b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem Ops.reserve(OutNumElems); 2845fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != OutNumElems; ++i) { 2846fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2847fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract the element from the original vector. 2848fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Index = DAG.getNode(ISD::ADD, dl, BaseIdx.getValueType(), 2849fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem BaseIdx, DAG.getIntPtrConstant(i)); 2850fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2851fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem InVT.getVectorElementType(), N->getOperand(0), Index); 2852fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2853fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, Ext); 2854fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Insert the converted element to the new vector. 2855fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2856fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2857fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2858fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2859fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2860fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2861fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2862fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VECTOR_SHUFFLE(SDNode *N) { 2863fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem ShuffleVectorSDNode *SV = cast<ShuffleVectorSDNode>(N); 2864fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT VT = N->getValueType(0); 2865fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2866fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2867fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElts = VT.getVectorNumElements(); 2868fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<int, 8> NewMask; 2869fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElts; ++i) { 2870fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewMask.push_back(SV->getMaskElt(i)); 2871fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2872fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2873fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2874fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = GetPromotedInteger(N->getOperand(1)); 28755b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem EVT OutVT = V0.getValueType(); 2876fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 28775b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem return DAG.getVectorShuffle(OutVT, dl, V0, V1, &NewMask[0]); 2878fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2879fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2880fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2881fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_VECTOR(SDNode *N) { 2882fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2883fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2884fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2885fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElems = N->getNumOperands(); 2886fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2887fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2888fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2889fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2890fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 28915b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem Ops.reserve(NumElems); 2892fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElems; ++i) { 2893fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(i)); 2894fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2895fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2896fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2897fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2898fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2899fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2900fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_SCALAR_TO_VECTOR(SDNode *N) { 2901fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2902fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2903fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 29041396c403897e3d3e04fbf59f6c5fe77cbbab74a6Benjamin Kramer assert(!N->getOperand(0).getValueType().isVector() && 29051396c403897e3d3e04fbf59f6c5fe77cbbab74a6Benjamin Kramer "Input must be a scalar"); 2906fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2907fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2908fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2909fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2910fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2911fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2912fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(0)); 2913fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2914fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, NOutVT, Op); 2915fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2916fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2917fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_INSERT_VECTOR_ELT(SDNode *N) { 2918fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2919fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2920fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2921fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2922fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2923fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2924fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2925811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2926fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2927fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue ConvElem = DAG.getNode(ISD::ANY_EXTEND, dl, 2928fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NOutVTElem, N->getOperand(1)); 2929811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem return DAG.getNode(ISD::INSERT_VECTOR_ELT, dl, NOutVT, 29302ff4bc615584fa9f32e64959767d64f2cb09fb99Nadav Rotem V0, ConvElem, N->getOperand(2)); 2931fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2932fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2933fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N) { 2934fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2935fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2936fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = N->getOperand(1); 2937fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2938fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem V0->getValueType(0).getScalarType(), V0, V1); 2939fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2940fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::TRUNCATE, dl, N->getValueType(0), Ext); 2941fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2942fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2943fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2944fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_CONCAT_VECTORS(SDNode *N) { 2945fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2946811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem unsigned NumElems = N->getNumOperands(); 2947fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2948fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT RetSclrTy = N->getValueType(0).getVectorElementType(); 2949fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2950fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> NewOps; 2951811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem NewOps.reserve(NumElems); 2952fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2953fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // For each incoming vector 2954811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem for (unsigned VecIdx = 0; VecIdx != NumElems; ++VecIdx) { 2955fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Incoming = GetPromotedInteger(N->getOperand(VecIdx)); 2956fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT SclrTy = Incoming->getValueType(0).getVectorElementType(); 2957fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElem = Incoming->getValueType(0).getVectorNumElements(); 2958fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2959fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i=0; i<NumElem; ++i) { 2960fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract element from incoming vector 2961fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ex = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, SclrTy, 2962fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Incoming, DAG.getIntPtrConstant(i)); 2963fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Tr = DAG.getNode(ISD::TRUNCATE, dl, RetSclrTy, Ex); 2964fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewOps.push_back(Tr); 2965fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2966fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2967fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2968fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, N->getValueType(0), 2969fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem &NewOps[0], NewOps.size()); 2970fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2971