LegalizeIntegerTypes.cpp revision b3e009a165a423536acfa5861c12ef631239d9e4
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" 22c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang#include "llvm/CodeGen/PseudoSourceValue.h" 237d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin#include "llvm/Support/ErrorHandling.h" 24fd87a544c00c2ca04ee23aae67bbcad4dc852a54Dan Gohman#include "llvm/Support/raw_ostream.h" 25cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattnerusing namespace llvm; 26cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 27cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Promotion 29cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 30cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 3169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteIntegerResult - This method is called when a result of a node is 3269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// found to be in need of promotion to a larger type. At this point, the node 3369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// may also have invalid operands or may have other results that need 3469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// expansion, we just know that (at least) one result needs promotion. 3569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) { 36d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer result: "; N->dump(&DAG); dbgs() << "\n"); 379fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SDValue Res = SDValue(); 3869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 39126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands // See if the target wants to custom expand this node. 40f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 411607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 42126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 4369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (N->getOpcode()) { 4469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 4569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#ifndef NDEBUG 46d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerResult #" << ResNo << ": "; 47d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 4869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#endif 49c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator!"); 509fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertSext: Res = PromoteIntRes_AssertSext(N); break; 519fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertZext: Res = PromoteIntRes_AssertZext(N); break; 52bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntRes_BITCAST(N); break; 539fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BSWAP: Res = PromoteIntRes_BSWAP(N); break; 549fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BUILD_PAIR: Res = PromoteIntRes_BUILD_PAIR(N); break; 559fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::Constant: Res = PromoteIntRes_Constant(N); break; 5600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang case ISD::CONVERT_RNDSAT: 579fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_CONVERT_RNDSAT(N); break; 589fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTLZ: Res = PromoteIntRes_CTLZ(N); break; 599fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTPOP: Res = PromoteIntRes_CTPOP(N); break; 609fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTTZ: Res = PromoteIntRes_CTTZ(N); break; 61bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ISD::EXTRACT_VECTOR_ELT: 629fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_EXTRACT_VECTOR_ELT(N); break; 639fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::LOAD: Res = PromoteIntRes_LOAD(cast<LoadSDNode>(N));break; 649fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT: Res = PromoteIntRes_SELECT(N); break; 659fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT_CC: Res = PromoteIntRes_SELECT_CC(N); break; 669fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SETCC: Res = PromoteIntRes_SETCC(N); break; 679fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SHL: Res = PromoteIntRes_SHL(N); break; 688d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands case ISD::SIGN_EXTEND_INREG: 699fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_SIGN_EXTEND_INREG(N); break; 709fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRA: Res = PromoteIntRes_SRA(N); break; 719fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRL: Res = PromoteIntRes_SRL(N); break; 729fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::TRUNCATE: Res = PromoteIntRes_TRUNCATE(N); break; 739fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UNDEF: Res = PromoteIntRes_UNDEF(N); break; 749fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::VAARG: Res = PromoteIntRes_VAARG(N); break; 75bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 76fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_SUBVECTOR: 77fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_EXTRACT_SUBVECTOR(N); break; 78fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::VECTOR_SHUFFLE: 79fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_VECTOR_SHUFFLE(N); break; 80fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::INSERT_VECTOR_ELT: 81fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_INSERT_VECTOR_ELT(N); break; 82fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::BUILD_VECTOR: 83fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_BUILD_VECTOR(N); break; 84fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::SCALAR_TO_VECTOR: 85fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_SCALAR_TO_VECTOR(N); break; 86fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 8769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SIGN_EXTEND: 8869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ZERO_EXTEND: 899fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::ANY_EXTEND: Res = PromoteIntRes_INT_EXTEND(N); break; 90bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 9169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: 929fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::FP_TO_UINT: Res = PromoteIntRes_FP_TO_XINT(N); break; 9369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 94927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP32_TO_FP16:Res = PromoteIntRes_FP32_TO_FP16(N); break; 95927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 9669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AND: 9769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::OR: 9869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::XOR: 9969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ADD: 10069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SUB: 1019fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::MUL: Res = PromoteIntRes_SimpleIntBinOp(N); break; 10269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SDIV: 1049fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SREM: Res = PromoteIntRes_SDIV(N); break; 10569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::UDIV: 1079fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UREM: Res = PromoteIntRes_UDIV(N); break; 1088ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 109253174bf50c932abaa680f465e2888c0e5272267Bill Wendling case ISD::SADDO: 1109fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SSUBO: Res = PromoteIntRes_SADDSUBO(N, ResNo); break; 11174c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::UADDO: 1129fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::USUBO: Res = PromoteIntRes_UADDSUBO(N, ResNo); break; 11374c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::SMULO: 1149fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UMULO: Res = PromoteIntRes_XMULO(N, ResNo); break; 115b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1160b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_ADD: 1170b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_SUB: 1180b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_AND: 1190b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_OR: 1200b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_XOR: 1210b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_NAND: 1220b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MIN: 1230b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MAX: 1240b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMIN: 1250b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMAX: 1260b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_SWAP: 1279fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic1(cast<AtomicSDNode>(N)); break; 128b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1290b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_CMP_SWAP: 1309fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic2(cast<AtomicSDNode>(N)); break; 13169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 13269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1339fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands // If the result is null then the sub-method took care of registering it. 1349fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (Res.getNode()) 1359fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SetPromotedInteger(SDValue(N, ResNo), Res); 13669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 13769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 138475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertSext(SDNode *N) { 13995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Sign-extend the new bits, and continue the assertion. 140c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = SExtPromotedInteger(N->getOperand(0)); 141786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertSext, N->getDebugLoc(), 142786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 14395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 14495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 145475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertZext(SDNode *N) { 14695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Zero the new bits, and continue the assertion. 147c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 148786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertZext, N->getDebugLoc(), 149786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 15095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 15195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 152b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic1(AtomicSDNode *N) { 153b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 1547fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 155786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getMemoryVT(), 1560b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman N->getChain(), N->getBasePtr(), 1570531356e4da1451b1b0b9e8c85365c2a58ca8282Chris Lattner Op2, N->getMemOperand()); 158b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 159b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 160b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 161b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 162b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 163b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 164b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic2(AtomicSDNode *N) { 165b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 166b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op3 = GetPromotedInteger(N->getOperand(3)); 167fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 168f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen N->getMemoryVT(), N->getChain(), N->getBasePtr(), 1690531356e4da1451b1b0b9e8c85365c2a58ca8282Chris Lattner Op2, Op3, N->getMemOperand()); 170b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 171b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 172b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 173b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 174b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 175b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 176bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) { 177475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = N->getOperand(0); 178e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT InVT = InOp.getValueType(); 17923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 180e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OutVT = N->getValueType(0); 18123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 182786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 18369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 18469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (getTypeAction(InVT)) { 18569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 18669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(false && "Unknown type action!"); 18769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 18896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 18969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 19096e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 19147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (NOutVT.bitsEq(NInVT)) 19269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The input promotes to the same size. Convert the promoted value. 193bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetPromotedInteger(InOp)); 194fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem if (NInVT.isVector()) 195fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Promote vector element via memory load/store. 196fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 197fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem CreateStackStoreLoad(InOp, OutVT)); 19869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 19996e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSoftenFloat: 20069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the integer operand by hand. 201786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, GetSoftenedFloat(InOp)); 20296e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 20396e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandFloat: 20469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 20596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeScalarizeVector: 20669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert the element to an integer and promote it by hand. 207786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 20869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands BitConvertToInteger(GetScalarizedVector(InOp))); 20996e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSplitVector: { 210bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck // For example, i32 = BITCAST v2i16 on alpha. Convert the split 21169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // pieces of the input into integers and reassemble in the final type. 212475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 21369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetSplitVector(N->getOperand(0), Lo, Hi); 21469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Lo = BitConvertToInteger(Lo); 21569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Hi = BitConvertToInteger(Hi); 21669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 21769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 21869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 21969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 220786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen InOp = DAG.getNode(ISD::ANY_EXTEND, dl, 221adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT::getIntegerVT(*DAG.getContext(), 222adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng NOutVT.getSizeInBits()), 22369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands JoinIntegers(Lo, Hi)); 224bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp); 22569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 22696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeWidenVector: 22787c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang if (OutVT.bitsEq(NInVT)) 22887c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang // The input is widened to the same size. Convert to the widened value. 229bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, OutVT, GetWidenedVector(InOp)); 23087c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang } 23169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 232aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 233aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman CreateStackStoreLoad(InOp, OutVT)); 23469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 23569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 236475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BSWAP(SDNode *N) { 237475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 238e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 239e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 240786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 241c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 242c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 243786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, dl, NVT, DAG.getNode(ISD::BSWAP, dl, NVT, Op), 24453dfa78e4133f6cdb5d860279adc337ea099ac15Duncan Sands DAG.getConstant(DiffBits, TLI.getPointerTy())); 245c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands} 246c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 247475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_PAIR(SDNode *N) { 248bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The pair element type may be legal, or may not promote to the same type as 249bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // the result, for example i14 = BUILD_PAIR (i7, i7). Handle all cases. 250786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), 25154e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), 25254e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getValueType(0)), JoinIntegers(N->getOperand(0), 25354e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getOperand(1))); 25469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 25569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 256475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_Constant(SDNode *N) { 257e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 258b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen // FIXME there is no actual debug info here 259b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 260bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Zero extend things like i1, sign extend everything else. It shouldn't 261bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // matter in theory which one we pick, but this tends to give better code? 262bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Opc = VT.isByteSized() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND; 26354e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher SDValue Result = DAG.getNode(Opc, dl, 26454e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), VT), 265a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands SDValue(N, 0)); 266bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(isa<ConstantSDNode>(Result) && "Didn't constant fold ext?"); 267bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Result; 26869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 26969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 27000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P WangSDValue DAGTypeLegalizer::PromoteIntRes_CONVERT_RNDSAT(SDNode *N) { 27100ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 27200ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 27300ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 27400ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_SF || CvtCode == ISD::CVT_UF) && 27500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang "can only promote integers"); 27623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT OutVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 277c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(OutVT, N->getDebugLoc(), N->getOperand(0), 27800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(1), N->getOperand(2), 27900ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 28000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang} 28100ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang 282475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTLZ(SDNode *N) { 283c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands // Zero extend to the promoted type and do the count there. 284c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 285b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 286e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 287e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 288b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Op = DAG.getNode(ISD::CTLZ, dl, NVT, Op); 28969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Subtract off the extra leading bits in the bigger type. 290b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen return DAG.getNode(ISD::SUB, dl, NVT, Op, 29169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DAG.getConstant(NVT.getSizeInBits() - 29269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands OVT.getSizeInBits(), NVT)); 29369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 29469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 295475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTPOP(SDNode *N) { 29669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Zero extend to the promoted type and do the count there. 297c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 298786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTPOP, N->getDebugLoc(), Op.getValueType(), Op); 29969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 30069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 301475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTTZ(SDNode *N) { 302475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 303e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 304e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 305786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 30669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The count is the same in the promoted type except if the original 30769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // value was zero. This can be handled by setting the bit just off 30869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the top of the original type. 30903dc093a2e63d20984c8fd67809fa762f1e31f1aDuncan Sands APInt TopBit(NVT.getSizeInBits(), 0); 3107a874ddda037349184fbeb22838cc11a1a9bb78fJay Foad TopBit.setBit(OVT.getSizeInBits()); 311786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::OR, dl, NVT, Op, DAG.getConstant(TopBit, NVT)); 312786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTTZ, dl, NVT, Op); 31369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 31469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 315475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N) { 316786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 31723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 318c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NVT, N->getOperand(0), 319c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman N->getOperand(1)); 32069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 32169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 322475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_FP_TO_XINT(SDNode *N) { 32323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 324a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands unsigned NewOpc = N->getOpcode(); 325786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 326d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 3274c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // If we're promoting a UINT to a larger size and the larger FP_TO_UINT is 3284c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // not Legal, check to see if we can use FP_TO_SINT instead. (If both UINT 32954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // and SINT conversions are Custom, there is no way to tell which is 33054e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // preferable. We choose SINT because that's the right thing on PPC.) 331a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands if (N->getOpcode() == ISD::FP_TO_UINT && 3324c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 333f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NVT)) 334a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NewOpc = ISD::FP_TO_SINT; 335a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 336786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(NewOpc, dl, NVT, N->getOperand(0)); 337a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 338a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // Assert that the converted value fits in the original type. If it doesn't 339a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // (eg: because the value being converted is too big), then the result of the 340a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // original operation was undefined anyway, so the assert is still correct. 341a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands return DAG.getNode(N->getOpcode() == ISD::FP_TO_UINT ? 342786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen ISD::AssertZext : ISD::AssertSext, dl, 343a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NVT, Res, DAG.getValueType(N->getValueType(0))); 344d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands} 345d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 346927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton KorobeynikovSDValue DAGTypeLegalizer::PromoteIntRes_FP32_TO_FP16(SDNode *N) { 347927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 348927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov DebugLoc dl = N->getDebugLoc(); 349927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 350927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov SDValue Res = DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 351927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 352927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov return DAG.getNode(ISD::AssertZext, dl, 353927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov NVT, Res, DAG.getValueType(N->getValueType(0))); 354927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov} 355927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 356475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_INT_EXTEND(SDNode *N) { 35723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 358786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 359be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 36096e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem if (getTypeAction(N->getOperand(0).getValueType()) 36196e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem == TargetLowering::TypePromoteInteger) { 362475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(N->getOperand(0)); 3636959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(Res.getValueType().bitsLE(NVT) && "Extension doesn't make sense!"); 364126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 365bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result and operand types are the same after promotion, simplify 366bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // to an in-register extension. 367bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (NVT == Res.getValueType()) { 368bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The high bits are not guaranteed to be anything. Insert an extend. 369bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::SIGN_EXTEND) 370786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 371bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DAG.getValueType(N->getOperand(0).getValueType())); 372bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::ZERO_EXTEND) 3734be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen return DAG.getZeroExtendInReg(Res, dl, N->getOperand(0).getValueType()); 374bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(N->getOpcode() == ISD::ANY_EXTEND && "Unknown integer extension!"); 375bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 376126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 37769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 37869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 379bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Otherwise, just extend the original operand all the way to the larger type. 380786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 381bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 38269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 383475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_LOAD(LoadSDNode *N) { 384bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 38523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 386bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::LoadExtType ExtType = 387bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::isNON_EXTLoad(N) ? ISD::EXTLOAD : N->getExtensionType(); 388786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 389a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Res = DAG.getExtLoad(ExtType, dl, NVT, N->getChain(), N->getBasePtr(), 3903d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner N->getPointerInfo(), 39147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getMemoryVT(), N->isVolatile(), 3921e559443a17d1b335f697551c6263ba60d5dd827David Greene N->isNonTemporal(), N->getAlignment()); 39369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 394bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Legalized the chain result - switch anything that used the old chain to 395bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 396475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 397bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 39869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 39969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 400874ae251c317788391f9c3f113957802d390a063Dale Johannesen/// Promote the overflow flag of an overflowing arithmetic node. 401ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Overflow(SDNode *N) { 402ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Simply change the return type of the boolean result. 40323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(1)); 404e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ValueVTs[] = { N->getValueType(0), NVT }; 405ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue Ops[] = { N->getOperand(0), N->getOperand(1) }; 406786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(N->getOpcode(), N->getDebugLoc(), 407786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getVTList(ValueVTs, 2), Ops, 2); 408ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 409ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Modified the sum result - switch anything that used the old sum to use 410ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the new one. 411ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 0), Res); 412ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 413ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return SDValue(Res.getNode(), 1); 414ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 415ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 416ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo) { 417ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 418ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 419ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 420ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 421ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // sign extension of its truncation to the original type. 422ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 423ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 424e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 425e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 426786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 427ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 428ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 429ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::SADDO ? ISD::ADD : ISD::SUB; 430786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 431ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 432ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: sign extend the arithmetic result from 433ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 434786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Ofl = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 435ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands DAG.getValueType(OVT)); 436ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 437786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 438ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 439ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 440ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 441ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 442ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 443ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 444ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 445475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SDIV(SDNode *N) { 446bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Sign extend the input. 447c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 448c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 449786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 450786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 45169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 45269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 453475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT(SDNode *N) { 454475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(1)); 455475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(2)); 456786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT, N->getDebugLoc(), 457786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0),LHS,RHS); 45869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 45969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 460475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT_CC(SDNode *N) { 461475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(2)); 462475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(3)); 463786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(), 464786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0), 465bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 46669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 46769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 468475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SETCC(SDNode *N) { 469e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = TLI.getSetCCResultType(N->getOperand(0).getValueType()); 4707e4982287591945c4e42ba8470a978e629789c76Duncan Sands assert(isTypeLegal(SVT) && "Illegal SetCC type!"); 471786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 4727e4982287591945c4e42ba8470a978e629789c76Duncan Sands 4737e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Get the SETCC result using the canonical SETCC type. 474786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SetCC = DAG.getNode(ISD::SETCC, dl, SVT, N->getOperand(0), 4757e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 4767e4982287591945c4e42ba8470a978e629789c76Duncan Sands 4777e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Convert to the expected type. 47823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 4796959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(NVT.bitsLE(SVT) && "Integer type overpromoted?"); 480786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, NVT, SetCC); 48169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 483475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SHL(SDNode *N) { 484786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SHL, N->getDebugLoc(), 485182465c589f95ff165331d06035ec53ff05bf1f5Evan Cheng TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)), 486bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands GetPromotedInteger(N->getOperand(0)), N->getOperand(1)); 48769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 489475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N) { 490475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 491786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, N->getDebugLoc(), 492786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 4938d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands} 4948d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands 495475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SimpleIntBinOp(SDNode *N) { 496bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input may have strange things in the top bits of the registers, but 497bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // these operations don't care. They may have weird bits going out, but 498bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // that too is okay if they are integer operations. 499475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(0)); 500475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(1)); 501786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 502786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 50369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 50469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 505475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRA(SDNode *N) { 506bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly sign extended. 507c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Res = SExtPromotedInteger(N->getOperand(0)); 508786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRA, N->getDebugLoc(), 509786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res.getValueType(), Res, N->getOperand(1)); 510bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 51169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 512475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRL(SDNode *N) { 513bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly zero extended. 514e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 51523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 516475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = ZExtPromotedInteger(N->getOperand(0)); 517786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, N->getDebugLoc(), NVT, Res, N->getOperand(1)); 51869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 51969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 520475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_TRUNCATE(SDNode *N) { 52123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 522475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res; 52369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 524bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands switch (getTypeAction(N->getOperand(0).getValueType())) { 525c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown type action!"); 52696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 52796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 528bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Res = N->getOperand(0); 529bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 53096e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 531bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Res = GetPromotedInteger(N->getOperand(0)); 532bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 533bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands } 534bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 535bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate to NVT instead of VT 536786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), NVT, Res); 53769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 53869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 539ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo) { 540ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 541ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 542ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 543ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 544ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // zero extension of its truncation to the original type. 545c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 546c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 547e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 548e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 549786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 55069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 551ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 552ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::UADDO ? ISD::ADD : ISD::SUB; 553786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 5548ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 555ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: zero extend the arithmetic result from 556ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 5574be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen SDValue Ofl = DAG.getZeroExtendInReg(Res, dl, OVT); 558ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 559786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 5608ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 561ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 562ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 5638ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 564ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 565ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 566ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 5675c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris LattnerSDValue DAGTypeLegalizer::PromoteIntRes_XMULO(SDNode *N, unsigned ResNo) { 5685c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Promote the overflow bit trivially. 5695c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (ResNo == 1) 5705c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return PromoteIntRes_Overflow(N); 571fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 5725c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 5735c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DebugLoc DL = N->getDebugLoc(); 574fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands EVT SmallVT = LHS.getValueType(); 575fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 576b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // To determine if the result overflowed in a larger type, we extend the 577b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // input to the larger type, do the multiply, then check the high bits of 578b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // the result to see if the overflow happened. 5795c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::SMULO) { 5805c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = SExtPromotedInteger(LHS); 5815c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = SExtPromotedInteger(RHS); 5825c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 5835c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = ZExtPromotedInteger(LHS); 5845c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = ZExtPromotedInteger(RHS); 5855c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 5865c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Mul = DAG.getNode(ISD::MUL, DL, LHS.getValueType(), LHS, RHS); 587fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 588b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // Overflow occurred iff the high part of the result does not 589b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // zero/sign-extend the low part. 5905c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Overflow; 5915c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::UMULO) { 592fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Unsigned overflow occurred iff the high part is non-zero. 5935c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Hi = DAG.getNode(ISD::SRL, DL, Mul.getValueType(), Mul, 594fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands DAG.getIntPtrConstant(SmallVT.getSizeInBits())); 5955c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner Overflow = DAG.getSetCC(DL, N->getValueType(1), Hi, 5965c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DAG.getConstant(0, Hi.getValueType()), ISD::SETNE); 5975c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 598fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Signed overflow occurred iff the high part does not sign extend the low. 599fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands SDValue SExt = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, Mul.getValueType(), 600fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Mul, DAG.getValueType(SmallVT)); 601fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Overflow = DAG.getSetCC(DL, N->getValueType(1), SExt, Mul, ISD::SETNE); 6025c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 6035c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 6045c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Use the calculated overflow everywhere. 6055c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner ReplaceValueWith(SDValue(N, 1), Overflow); 6065c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return Mul; 6075c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner} 6085c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 609ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { 610ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Zero extend the input. 611ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 612ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 613786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 614786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 6158ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling} 6168ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 617475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_UNDEF(SDNode *N) { 61853f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng return DAG.getUNDEF(TLI.getTypeToTransformTo(*DAG.getContext(), 61953f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng N->getValueType(0))); 62069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 62169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 622475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_VAARG(SDNode *N) { 623475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = N->getOperand(0); // Get the chain. 624475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getOperand(1); // Get the pointer. 625e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 626786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 62769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 62823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT RegVT = TLI.getRegisterType(*DAG.getContext(), VT); 62923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson unsigned NumRegs = TLI.getNumRegisters(*DAG.getContext(), VT); 630d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // The argument is passed as NumRegs registers of type RegVT. 631d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 632d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands SmallVector<SDValue, 8> Parts(NumRegs); 633d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 0; i < NumRegs; ++i) { 634cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola Parts[i] = DAG.getVAArg(RegVT, dl, Chain, Ptr, N->getOperand(2), 635cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola N->getConstantOperandVal(3)); 636d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands Chain = Parts[i].getValue(1); 637d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 63869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 639d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Handle endianness of the load. 640d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands if (TLI.isBigEndian()) 641d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands std::reverse(Parts.begin(), Parts.end()); 64269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 643d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Assemble the parts in the promoted type. 64423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 645786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[0]); 646d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 1; i < NumRegs; ++i) { 647786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Part = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[i]); 648d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Shift it to the right position and "or" it in. 649786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Part = DAG.getNode(ISD::SHL, dl, NVT, Part, 650d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands DAG.getConstant(i * RegVT.getSizeInBits(), 65192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 652786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res = DAG.getNode(ISD::OR, dl, NVT, Res, Part); 653d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 65469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 655d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Modified the chain result - switch anything that used the old chain to 656bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 657d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands ReplaceValueWith(SDValue(N, 1), Chain); 658d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 659d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands return Res; 66069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 66169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 662bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 663bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands// Integer Operand Promotion 664bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 6657fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 666bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// PromoteIntegerOperand - This method is called when the specified operand of 667bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// the specified node is found to need promotion. At this point, all of the 668bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// result types of the node are known to be legal, but other operands of the 669bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// node may need promotion or expansion as well as the specified one. 670bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sandsbool DAGTypeLegalizer::PromoteIntegerOperand(SDNode *N, unsigned OpNo) { 671d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer operand: "; N->dump(&DAG); dbgs() << "\n"); 672475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 6737fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 674f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 675bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 67669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 677bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 678bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 679bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #ifndef NDEBUG 680d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerOperand Op #" << OpNo << ": "; 681d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 682bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #endif 683c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator's operand!"); 684bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 685bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ANY_EXTEND: Res = PromoteIntOp_ANY_EXTEND(N); break; 686bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntOp_BITCAST(N); break; 687bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BR_CC: Res = PromoteIntOp_BR_CC(N, OpNo); break; 688bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BRCOND: Res = PromoteIntOp_BRCOND(N, OpNo); break; 689bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_PAIR: Res = PromoteIntOp_BUILD_PAIR(N); break; 690bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_VECTOR: Res = PromoteIntOp_BUILD_VECTOR(N); break; 691fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::CONCAT_VECTORS: Res = PromoteIntOp_CONCAT_VECTORS(N); break; 692fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_VECTOR_ELT: Res = PromoteIntOp_EXTRACT_VECTOR_ELT(N); break; 693bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::CONVERT_RNDSAT: 694bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_CONVERT_RNDSAT(N); break; 695bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: 696bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_INSERT_VECTOR_ELT(N, OpNo);break; 697bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::MEMBARRIER: Res = PromoteIntOp_MEMBARRIER(N); break; 698aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang case ISD::SCALAR_TO_VECTOR: 699aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang Res = PromoteIntOp_SCALAR_TO_VECTOR(N); break; 700bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT: Res = PromoteIntOp_SELECT(N, OpNo); break; 701bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT_CC: Res = PromoteIntOp_SELECT_CC(N, OpNo); break; 702bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SETCC: Res = PromoteIntOp_SETCC(N, OpNo); break; 703bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SIGN_EXTEND: Res = PromoteIntOp_SIGN_EXTEND(N); break; 704bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SINT_TO_FP: Res = PromoteIntOp_SINT_TO_FP(N); break; 705bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::STORE: Res = PromoteIntOp_STORE(cast<StoreSDNode>(N), 706bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta OpNo); break; 707bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::TRUNCATE: Res = PromoteIntOp_TRUNCATE(N); break; 708927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP16_TO_FP32: 709bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::UINT_TO_FP: Res = PromoteIntOp_UINT_TO_FP(N); break; 710bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ZERO_EXTEND: Res = PromoteIntOp_ZERO_EXTEND(N); break; 71155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 71255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 71355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 71455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 71555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 71655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = PromoteIntOp_Shift(N); break; 717bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta } 7189fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands 719bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result is null, the sub-method took care of registering results etc. 7209fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (!Res.getNode()) return false; 72147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 72247d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 72347d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 72447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 725bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return true; 726bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 727bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 728bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands "Invalid operand expansion"); 729bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 730475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 731bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return false; 73269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 73369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 73469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteSetCCOperands - Promote the operands of a comparison. This code is 73569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// shared among BR_CC, SELECT_CC, and SETCC handlers. 736475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::PromoteSetCCOperands(SDValue &NewLHS,SDValue &NewRHS, 73769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands ISD::CondCode CCCode) { 738cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // We have to insert explicit sign or zero extends. Note that we could 739cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // insert sign extends for ALL conditions, but zero extend is cheaper on 740cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // many machines (an AND instead of two shifts), so prefer it. 74169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (CCCode) { 742c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer comparison!"); 74369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETEQ: 74469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETNE: 74569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGE: 74669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGT: 74769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULE: 74869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULT: 74969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // ALL of these operations will work if we either sign or zero extend 75069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the operands (including the unsigned comparisons!). Zero extend is 75169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // usually a simpler/cheaper operation, so prefer it. 752c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = ZExtPromotedInteger(NewLHS); 753c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = ZExtPromotedInteger(NewRHS); 75411ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 75569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGE: 75669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGT: 75769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLT: 75869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLE: 759c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = SExtPromotedInteger(NewLHS); 760c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = SExtPromotedInteger(NewRHS); 76111ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 76269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 76369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 76469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 765475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ANY_EXTEND(SDNode *N) { 766475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 767786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), N->getValueType(0), Op); 768bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 76969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 770bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntOp_BITCAST(SDNode *N) { 77127759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // This should only occur in unusual situations like bitcasting to an 77227759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // x86_fp80, so just turn it into a store+load 77327759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman return CreateStackStoreLoad(N->getOperand(0), N->getValueType(0)); 77427759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman} 77527759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman 776475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo) { 777bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 2 && "Don't know how to promote this operand!"); 77869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 779475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(2); 780475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(3); 781bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(1))->get()); 78269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 783bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0), CC (#1) and basic block destination (Op#4) are always 784bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal types. 785027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 786027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), LHS, RHS, N->getOperand(4)), 787027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 788bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 789bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 790475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo) { 791bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 1 && "only know how to promote condition"); 792bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 793b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 794825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson EVT SVT = TLI.getSetCCResultType(MVT::Other); 795b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(1), SVT); 796bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 797bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0) and basic block destination (Op#2) are always legal types. 798027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Cond, 799027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 0); 800bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 801bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 802475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_PAIR(SDNode *N) { 803bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Since the result type is legal, the operands must promote to it. 804e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 805c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Lo = ZExtPromotedInteger(N->getOperand(0)); 806475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = GetPromotedInteger(N->getOperand(1)); 807bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Lo.getValueType() == N->getValueType(0) && "Operand over promoted?"); 808786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 809bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 810786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, N->getValueType(0), Hi, 81192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(OVT.getSizeInBits(), TLI.getPointerTy())); 812786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::OR, dl, N->getValueType(0), Lo, Hi); 81369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 81469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 815475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_VECTOR(SDNode *N) { 81669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The vector type is legal but the element type is not. This implies 81769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // that the vector is a power-of-two in length and that the element 81869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // type does not have a strange size (eg: it is not i1). 819e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VecVT = N->getValueType(0); 82069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned NumElts = VecVT.getVectorNumElements(); 82169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(NumElts & 1) && "Legal vector of one illegal element?"); 82269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 823b1303d05a89972195de023fda432cc621375a27cBob Wilson // Promote the inserted value. The type does not need to match the 824b1303d05a89972195de023fda432cc621375a27cBob Wilson // vector element type. Check that any extra bits introduced will be 825b1303d05a89972195de023fda432cc621375a27cBob Wilson // truncated away. 826b1303d05a89972195de023fda432cc621375a27cBob Wilson assert(N->getOperand(0).getValueType().getSizeInBits() >= 827b1303d05a89972195de023fda432cc621375a27cBob Wilson N->getValueType(0).getVectorElementType().getSizeInBits() && 828b1303d05a89972195de023fda432cc621375a27cBob Wilson "Type of inserted value narrower than vector element type!"); 82969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 830b1303d05a89972195de023fda432cc621375a27cBob Wilson SmallVector<SDValue, 16> NewOps; 831c885165e664f3b465403e1b6ce57ba63f57c5f0cBob Wilson for (unsigned i = 0; i < NumElts; ++i) 832b1303d05a89972195de023fda432cc621375a27cBob Wilson NewOps.push_back(GetPromotedInteger(N->getOperand(i))); 83369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 834027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, &NewOps[0], NumElts), 0); 83569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 83669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 83728088d3c049017a131aa7b07201c6e19c0227cefMon P WangSDValue DAGTypeLegalizer::PromoteIntOp_CONVERT_RNDSAT(SDNode *N) { 83828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 83928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 84028088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 84128088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_FS || CvtCode == ISD::CVT_FU) && 84228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang "can only promote integer arguments"); 84328088d3c049017a131aa7b07201c6e19c0227cefMon P Wang SDValue InOp = GetPromotedInteger(N->getOperand(0)); 844c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(N->getValueType(0), N->getDebugLoc(), InOp, 84528088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(1), N->getOperand(2), 84628088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 84728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang} 84828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang 849475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, 850475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned OpNo) { 85169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OpNo == 1) { 85269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the inserted value. This is valid because the type does not 85369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // have to match the vector element type. 85469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 85569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Check that any extra bits introduced will be truncated away. 85669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(N->getOperand(1).getValueType().getSizeInBits() >= 85769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getValueType(0).getVectorElementType().getSizeInBits() && 85869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Type of inserted value narrower than vector element type!"); 859027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 86069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetPromotedInteger(N->getOperand(1)), 861027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 862027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 86369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 86469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 86569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OpNo == 2 && "Different operand and result vector types?"); 86669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 86769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the index. 868c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Idx = ZExtPromotedInteger(N->getOperand(2)); 869027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 870027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), Idx), 0); 87169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 87269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 873475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_MEMBARRIER(SDNode *N) { 874475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewOps[6]; 8754be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 87669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewOps[0] = N->getOperand(0); 87769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 1; i < array_lengthof(NewOps); ++i) { 878475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag = GetPromotedInteger(N->getOperand(i)); 879825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson NewOps[i] = DAG.getZeroExtendInReg(Flag, dl, MVT::i1); 88069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 881027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewOps, array_lengthof(NewOps)), 0); 88269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 88369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 884aa9df0b0c3cef33514095bde2eedead986677955Mon P WangSDValue DAGTypeLegalizer::PromoteIntOp_SCALAR_TO_VECTOR(SDNode *N) { 885b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // Integer SCALAR_TO_VECTOR operands are implicitly truncated, so just promote 886b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // the operand in place. 887027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 888027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman GetPromotedInteger(N->getOperand(0))), 0); 889aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang} 890aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang 891475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT(SDNode *N, unsigned OpNo) { 892bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Only know how to promote condition"); 8937e4982287591945c4e42ba8470a978e629789c76Duncan Sands 894b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 895e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = TLI.getSetCCResultType(N->getOperand(1).getValueType()); 896b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(0), SVT); 897bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 898027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, Cond, 899027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), N->getOperand(2)), 0); 900bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 901bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 902475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo) { 903bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 904bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 905475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 906475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 907bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(4))->get()); 908bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 909bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#4) and the possible return values (#2 and #3) have legal types. 910027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2), 911027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(3), N->getOperand(4)), 0); 912bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 913bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 914475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SETCC(SDNode *N, unsigned OpNo) { 915bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 916bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 917475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 918475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 919bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get()); 920bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 921bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#2) is always legal. 922027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2)), 0); 923bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 924bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 92555467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::PromoteIntOp_Shift(SDNode *N) { 926027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 927027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(1))), 0); 92855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 92955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 930475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SIGN_EXTEND(SDNode *N) { 931475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 932786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 933786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 934786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), 935bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Op, DAG.getValueType(N->getOperand(0).getValueType())); 936bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 937bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 938c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_SINT_TO_FP(SDNode *N) { 939027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 940027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SExtPromotedInteger(N->getOperand(0))), 0); 941c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 942c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 943475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){ 944bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 945475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(), Ptr = N->getBasePtr(); 946bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Alignment = N->getAlignment(); 947bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands bool isVolatile = N->isVolatile(); 9481e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 949786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 950bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 951475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = GetPromotedInteger(N->getValue()); // Get promoted value. 952bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 953bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate the value and store the result. 954ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Val, Ptr, N->getPointerInfo(), 955ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getMemoryVT(), 9561e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 957bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 958bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 959475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_TRUNCATE(SDNode *N) { 960475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 961786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), Op); 962bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 963bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 964c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_UINT_TO_FP(SDNode *N) { 965027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 966027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(0))), 0); 967c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 968c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 969475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ZERO_EXTEND(SDNode *N) { 9704be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 971475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 9724be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 9734be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen return DAG.getZeroExtendInReg(Op, dl, N->getOperand(0).getValueType()); 974bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 975bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 97669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 97769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 97869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Expansion 97969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 98069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 98169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// ExpandIntegerResult - This method is called when the specified result of the 982cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// specified node is found to need expansion. At this point, the node may also 983cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// have invalid operands or may have other results that need promotion, we just 984cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// know that (at least) one result needs expansion. 98569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) { 986d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer result: "; N->dump(&DAG); dbgs() << "\n"); 987475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 988475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Lo = Hi = SDValue(); 989cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 990cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // See if the target wants to custom expand this node. 991f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 9921607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 993cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 994cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (N->getOpcode()) { 995cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: 996cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#ifndef NDEBUG 997d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerResult #" << ResNo << ": "; 998d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 999cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#endif 1000c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand the result of this operator!"); 100169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 100278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, Lo, Hi); break; 100378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break; 100478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break; 100578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break; 100678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1007bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: ExpandRes_BITCAST(N, Lo, Hi); break; 100878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break; 10094a307ecce68f90e0eebf1ded52b947816cdc2304Duncan Sands case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break; 101078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break; 101121c2972f7d24680f6475877a3398b7f8cf515b33Duncan Sands case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break; 101278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 101369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ANY_EXTEND: ExpandIntRes_ANY_EXTEND(N, Lo, Hi); break; 101495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands case ISD::AssertSext: ExpandIntRes_AssertSext(N, Lo, Hi); break; 101569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AssertZext: ExpandIntRes_AssertZext(N, Lo, Hi); break; 101605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::BSWAP: ExpandIntRes_BSWAP(N, Lo, Hi); break; 101705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::Constant: ExpandIntRes_Constant(N, Lo, Hi); break; 101805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTLZ: ExpandIntRes_CTLZ(N, Lo, Hi); break; 101905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTPOP: ExpandIntRes_CTPOP(N, Lo, Hi); break; 102005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTTZ: ExpandIntRes_CTTZ(N, Lo, Hi); break; 102169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: ExpandIntRes_FP_TO_SINT(N, Lo, Hi); break; 102269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_UINT: ExpandIntRes_FP_TO_UINT(N, Lo, Hi); break; 102369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::LOAD: ExpandIntRes_LOAD(cast<LoadSDNode>(N), Lo, Hi); break; 102405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::MUL: ExpandIntRes_MUL(N, Lo, Hi); break; 102505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SDIV: ExpandIntRes_SDIV(N, Lo, Hi); break; 102605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND: ExpandIntRes_SIGN_EXTEND(N, Lo, Hi); break; 102705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND_INREG: ExpandIntRes_SIGN_EXTEND_INREG(N, Lo, Hi); break; 102805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SREM: ExpandIntRes_SREM(N, Lo, Hi); break; 102905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::TRUNCATE: ExpandIntRes_TRUNCATE(N, Lo, Hi); break; 103005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UDIV: ExpandIntRes_UDIV(N, Lo, Hi); break; 103105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UREM: ExpandIntRes_UREM(N, Lo, Hi); break; 103205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::ZERO_EXTEND: ExpandIntRes_ZERO_EXTEND(N, Lo, Hi); break; 103369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10348d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_ADD: 10358d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_SUB: 10368d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_AND: 10378d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_OR: 10388d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_XOR: 10398d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_NAND: 10408d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MIN: 10418d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MAX: 10428d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMIN: 10438d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMAX: 10448d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_SWAP: { 10458d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher std::pair<SDValue, SDValue> Tmp = ExpandAtomic(N); 10468d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher SplitInteger(Tmp.first, Lo, Hi); 10478d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher ReplaceValueWith(SDValue(N, 1), Tmp.second); 10488d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher break; 10498d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher } 10508d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher 1051cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::AND: 1052cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::OR: 105305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::XOR: ExpandIntRes_Logical(N, Lo, Hi); break; 105405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1055cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADD: 105605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUB: ExpandIntRes_ADDSUB(N, Lo, Hi); break; 105705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1058cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDC: 105905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBC: ExpandIntRes_ADDSUBC(N, Lo, Hi); break; 106005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1061cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDE: 106205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBE: ExpandIntRes_ADDSUBE(N, Lo, Hi); break; 106305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1064cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SHL: 1065cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SRA: 106605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: ExpandIntRes_Shift(N, Lo, Hi); break; 1067268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1068268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SADDO: 1069268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SSUBO: ExpandIntRes_SADDSUBO(N, Lo, Hi); break; 1070268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::UADDO: 1071268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::USUBO: ExpandIntRes_UADDSUBO(N, Lo, Hi); break; 1072cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1073d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1074cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If Lo/Hi is null, the sub-method took care of registering results etc. 1075ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Lo.getNode()) 1076475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SetExpandedInteger(SDValue(N, ResNo), Lo, Hi); 1077cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1078cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 107993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher/// Lower an atomic node to the appropriate builtin call. 108093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopherstd::pair <SDValue, SDValue> DAGTypeLegalizer::ExpandAtomic(SDNode *Node) { 108193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher unsigned Opc = Node->getOpcode(); 108293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher MVT VT = cast<AtomicSDNode>(Node)->getMemoryVT().getSimpleVT(); 108393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher RTLIB::Libcall LC; 108493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 108593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (Opc) { 108693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: 108793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher llvm_unreachable("Unhandled atomic intrinsic Expand!"); 108893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 108993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_SWAP: 109093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 109193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 109293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_1; break; 109393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_2; break; 109493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_4; break; 109593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_8; break; 109693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 109793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 109893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_CMP_SWAP: 109993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 110093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 110193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1; break; 110293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2; break; 110393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4; break; 110493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8; break; 110593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 110693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 110793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_ADD: 110893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 110993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 111093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_ADD_1; break; 111193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_ADD_2; break; 111293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_ADD_4; break; 111393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_ADD_8; break; 111493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 111593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 111693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_SUB: 111793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 111893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 111993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_SUB_1; break; 112093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_SUB_2; break; 112193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_SUB_4; break; 112293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_SUB_8; break; 112393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 112493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 112593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_AND: 112693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 112793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 112893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_AND_1; break; 112993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_AND_2; break; 113093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_AND_4; break; 113193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_AND_8; break; 113293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 113393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 113493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_OR: 113593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 113693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 113793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_OR_1; break; 113893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_OR_2; break; 113993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_OR_4; break; 114093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_OR_8; break; 114193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 114293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 114393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_XOR: 114493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 114593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 114693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_XOR_1; break; 114793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_XOR_2; break; 114893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_XOR_4; break; 114993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_XOR_8; break; 115093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 115193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 115293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_NAND: 115393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 115493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 115593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_NAND_1; break; 115693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_NAND_2; break; 115793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_NAND_4; break; 115893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_NAND_8; break; 115993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 116093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 116193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 116293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 116393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher return ExpandChainLibCall(LC, Node, false); 116493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher} 116593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 116605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftByConstant - N is a shift by a value that needs to be expanded, 116705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// and the shift amount is a constant 'Amt'. Expand the operation. 116805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandShiftByConstant(SDNode *N, unsigned Amt, 1169475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1170e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DebugLoc DL = N->getDebugLoc(); 117105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the incoming operand to be shifted, so that we have its parts 1172475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 117305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1174cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1175e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = InL.getValueType(); 117605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned VTBits = N->getValueType(0).getSizeInBits(); 117705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 1178e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = N->getOperand(1).getValueType(); 1179cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 118005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SHL) { 118105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 118205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = Hi = DAG.getConstant(0, NVT); 118305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 118405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 1185e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SHL, DL, 1186915eeb488786379250808d47668c43e010efe566Chris Lattner NVT, InL, DAG.getConstant(Amt-NVTBits, ShTy)); 118705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 118805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 118905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = InL; 1190104de6cf7b80ec5e9beb502a069f376810a0a1e3Richard Osborne } else if (Amt == 1 && 1191f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::ADDC, 119254e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToExpandTo(*DAG.getContext(), NVT))) { 119305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Emit this X << 1 as X+X. 1194f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 1195475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { InL, InL }; 1196e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::ADDC, DL, VTList, LoOps, 2); 1197475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { InH, InH, Lo.getValue(1) }; 1198e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::ADDE, DL, VTList, HiOps, 3); 119905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1200e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SHL, DL, NVT, InL, DAG.getConstant(Amt, ShTy)); 1201e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::OR, DL, NVT, 1202e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 120305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1204e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 120505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 120605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 120705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1208cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1209cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 121005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SRL) { 121105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 121205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 121305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 121405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1215e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRL, DL, 1216786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InH, DAG.getConstant(Amt-NVTBits,ShTy)); 121705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 121805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 121905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 122005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 122105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1222e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1223e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 122405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1225e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 122605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1227e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRL, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 122805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 122905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1230cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1231d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 123205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 123305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 1234e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 123505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 123605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1237e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 123805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt-NVTBits, ShTy)); 1239e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 124005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 124105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 124205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 1243e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 124405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1245d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } else { 1246e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1247e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 124805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1249e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 125005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1251e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 1252d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } 1253d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands} 1254d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 125505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftWithKnownAmountBit - Try to determine whether we can simplify 125605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// this shift based on knowledge of the high bit of the shift amount. If we 125705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// can tell this, we know that it is >= 32 or < 32, without knowing the actual 125805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// shift amount. 125905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer:: 1260475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 1261475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt = N->getOperand(1); 126223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1263e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 12645b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned ShBits = ShTy.getScalarType().getSizeInBits(); 12655b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned NVTBits = NVT.getScalarType().getSizeInBits(); 126605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(isPowerOf2_32(NVTBits) && 126705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Expanded integer type size not a power of two!"); 1268786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1269cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 127005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt HighBitMask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 127105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt KnownZero, KnownOne; 127205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.ComputeMaskedBits(N->getOperand(1), HighBitMask, KnownZero, KnownOne); 1273cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 127405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we don't know anything about the high bits, exit. 127505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (((KnownZero|KnownOne) & HighBitMask) == 0) 127605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1277cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 127805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get the incoming operand to be shifted. 1279475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 128005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1281be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 128205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that any of the high bits of the shift amount are one, then we 128305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 128405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (KnownOne.intersects(HighBitMask)) { 128505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Mask out the high bit, which we know is set. 1286786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Amt = DAG.getNode(ISD::AND, dl, ShTy, Amt, 128705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(~HighBitMask, ShTy)); 128805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 128905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1290c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 129105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: 129205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); // Low part is zero. 1293786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 129405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 129505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 129605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // Hi part is zero. 1297786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 129805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 129905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: 1300786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 130105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1302786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 130305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 130405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 130505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 130605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 130728dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#if 0 130828dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman // FIXME: This code is broken for shifts with a zero amount! 130905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that all of the high bits of the shift amount are zero, then we 131005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 131105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if ((KnownZero & HighBitMask) == HighBitMask) { 131205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Compute 32-amt. 1313475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt2 = DAG.getNode(ISD::SUB, ShTy, 131405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits, ShTy), 131505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Amt); 131605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned Op1, Op2; 131705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1318c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 131905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: Op1 = ISD::SHL; Op2 = ISD::SRL; break; 132005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 132105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: Op1 = ISD::SRL; Op2 = ISD::SHL; break; 132205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 132305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 132405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getNode(N->getOpcode(), NVT, InL, Amt); 132505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getNode(ISD::OR, NVT, 132605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op1, NVT, InH, Amt), 132705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op2, NVT, InL, Amt2)); 132805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 132905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 133028dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#endif 133105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 133205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 133305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 133405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 13356fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// ExpandShiftWithUnknownAmountBit - Fully general expansion of integer shift 13366fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// of any size. 13376fb2168aaed06e4685d064b6f63dc4c668b42728Evan Chengbool DAGTypeLegalizer:: 13386fb2168aaed06e4685d064b6f63dc4c668b42728Evan ChengExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 13396fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Amt = N->getOperand(1); 134023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1341e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 13426fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng unsigned NVTBits = NVT.getSizeInBits(); 13436fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng assert(isPowerOf2_32(NVTBits) && 13446fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng "Expanded integer type size not a power of two!"); 13456fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DebugLoc dl = N->getDebugLoc(); 13466fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13476fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // Get the incoming operand to be shifted. 13486fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue InL, InH; 13496fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng GetExpandedInteger(N->getOperand(0), InL, InH); 13506fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13516fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue NVBitsNode = DAG.getConstant(NVTBits, ShTy); 13529993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtExcess = DAG.getNode(ISD::SUB, dl, ShTy, Amt, NVBitsNode); 13539993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtLack = DAG.getNode(ISD::SUB, dl, ShTy, NVBitsNode, Amt); 13549993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue isShort = DAG.getSetCC(dl, TLI.getSetCCResultType(ShTy), 13559993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Amt, NVBitsNode, ISD::SETULT); 13566fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13579993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue LoS, HiS, LoL, HiL; 13586fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng switch (N->getOpcode()) { 1359c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 13606fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SHL: 13619993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 13629993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); 13639993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::OR, dl, NVT, 13646fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt), 136536236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 136636236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 13679993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, AmtLack)); 13689993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 13699993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 13709993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getConstant(0, NVT); // Lo part is zero. 13719993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SHL, dl, NVT, InL, AmtExcess); // Hi from Lo part. 13726fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13739993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 13749993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 13756fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 13766fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRL: 13779993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 13789993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); 13799993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 13809993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 138136236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 138236236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 13839993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 13849993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 13859993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 13869993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getConstant(0, NVT); // Hi part is zero. 13879993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRL, dl, NVT, InH, AmtExcess); // Lo from Hi part. 13889993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 13899993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 13909993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 13916fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 13926fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRA: 13939993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 13949993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); 13959993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 13966fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 139736236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 139836236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 13999993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 14009993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14019993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14029993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign of Hi part. 14039993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getConstant(NVTBits-1, ShTy)); 14049993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRA, dl, NVT, InH, AmtExcess); // Lo from Hi part. 14056fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14069993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14079993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14086fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14096fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 14106fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14116fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return false; 14126fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng} 14136fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 141405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUB(SDNode *N, 1415475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1416786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 141705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1418475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 141905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 142005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 142129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 1422e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHSL.getValueType(); 1423475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1424475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 142505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 142629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // Do not generate ADDC/ADDE or SUBC/SUBE if the target does not support 142729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // them. TODO: Teach operation legalization how to expand unsupported 142829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // ADDC/ADDE/SUBC/SUBE. The problem is that these operations generate 1429f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner // a carry of type MVT::Glue, but there doesn't seem to be any way to 143029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // generate a value of this type in the expanded code sequence. 143129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands bool hasCarry = 1432f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(N->getOpcode() == ISD::ADD ? 1433f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman ISD::ADDC : ISD::SUBC, 1434bc7a902713c4e3f13a93c383e647d2a18712f447Dan Gohman TLI.getTypeToExpandTo(*DAG.getContext(), NVT)); 143529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 143629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (hasCarry) { 1437f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 143829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1439786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 144029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1441786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 144229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1443786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 144429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1445786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 144629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 1447c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson return; 14485078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner } 1449c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson 14505078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner if (N->getOpcode() == ISD::ADD) { 14515078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::ADD, dl, NVT, LoOps, 2); 14525078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, HiOps, 2); 14535078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[0], 14545078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 14555078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry1 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp1, 14565078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 14575078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 14585078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[1], 14595078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 14605078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry2 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp2, 14615078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), Carry1); 14625078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, Carry2); 146305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 14645078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::SUB, dl, NVT, LoOps, 2); 14655078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, HiOps, 2); 14665078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp = 14675078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getSetCC(dl, TLI.getSetCCResultType(LoOps[0].getValueType()), 14685078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner LoOps[0], LoOps[1], ISD::SETULT); 14695078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Borrow = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, 14705078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 14715078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 14725078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, Hi, Borrow); 147305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 147405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 147505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 147605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBC(SDNode *N, 1477475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 147805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1479475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1480786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 148105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 148205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1483f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1484475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1485475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 148605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 148705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::ADDC) { 1488786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 148905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1490786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 149105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1492786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 149305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1494786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 149505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 149605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1497874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1498874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1499475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 150005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 150105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 150205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBE(SDNode *N, 1503475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 150405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1505475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1506786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 150705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 150805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1509f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1510475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, N->getOperand(2) }; 1511475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 151205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1513786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, VTList, LoOps, 3); 151405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1515786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, VTList, HiOps, 3); 151605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1517874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1518874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1519475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 152005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 152105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 152205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ANY_EXTEND(SDNode *N, 1523475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 152423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1525786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1526475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 152705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 152805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The low part is any extension of the input (which degenerates to a copy). 1529786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ANY_EXTEND, dl, NVT, Op); 1530e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); // The high part is undefined. 153105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 153205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 153305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 153496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 153596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 153605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1537475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 153805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 153905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 154005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 154105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 154205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 154305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 154405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 154595db39a9de48f69f4d764335b492b83a698c7854Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertSext(SDNode *N, 1546475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1547786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 154895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1549e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1550e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 155195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned NVTBits = NVT.getSizeInBits(); 155295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned EVTBits = EVT.getSizeInBits(); 155395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 155495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands if (NVTBits < EVTBits) { 1555786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertSext, dl, NVT, Hi, 15564ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 15574ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng EVTBits - NVTBits))); 155895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } else { 1559786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertSext, dl, NVT, Lo, DAG.getValueType(EVT)); 156095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // The high part replicates the sign bit of Lo, make it explicit. 1561786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 156292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVTBits-1, TLI.getPointerTy())); 156395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } 156495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 156595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 156605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertZext(SDNode *N, 1567475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1568786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 156905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1570e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1571e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 157205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 157305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned EVTBits = EVT.getSizeInBits(); 157405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 157505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (NVTBits < EVTBits) { 1576786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertZext, dl, NVT, Hi, 1577285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 1578285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng EVTBits - NVTBits))); 157905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1580786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertZext, dl, NVT, Lo, DAG.getValueType(EVT)); 158105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part must be zero, make it explicit. 158205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 158305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 158405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 158505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 158605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_BSWAP(SDNode *N, 1587475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1588786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 158905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Hi, Lo); // Note swapped operands. 1590786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::BSWAP, dl, Lo.getValueType(), Lo); 1591786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::BSWAP, dl, Hi.getValueType(), Hi); 159205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 159305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 159405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Constant(SDNode *N, 1595475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 159623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 159705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NBitWidth = NVT.getSizeInBits(); 159805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const APInt &Cst = cast<ConstantSDNode>(N)->getAPIntValue(); 159940f8f6264d5af2c38e797e0dc59827cd231e8ff7Jay Foad Lo = DAG.getConstant(Cst.trunc(NBitWidth), NVT); 160005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(Cst.lshr(NBitWidth).trunc(NBitWidth), NVT); 160105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 160205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 160305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTLZ(SDNode *N, 1604475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1605786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 160605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctlz (HiLo) -> Hi != 0 ? ctlz(Hi) : (ctlz(Lo)+32) 160705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1608e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 160905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1610786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Hi, 1611ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 161205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1613786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Lo); 1614786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Hi); 161505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1616786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, HiNotZero, HiLZ, 1617786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, LoLZ, 161805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 161905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 162005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 162105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 162205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTPOP(SDNode *N, 1623475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1624786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 162505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctpop(HiLo) -> ctpop(Hi)+ctpop(Lo) 162605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1627e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1628b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, DAG.getNode(ISD::CTPOP, dl, NVT, Lo), 1629786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::CTPOP, dl, NVT, Hi)); 163005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 163105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 163205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 163305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTTZ(SDNode *N, 1634475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1635786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 163605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // cttz (HiLo) -> Lo != 0 ? cttz(Lo) : (cttz(Hi)+32) 163705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1638e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 163905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1640786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, 1641ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 164205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1643786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Lo); 1644786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Hi); 164505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1646786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, LoNotZero, LoLZ, 1647786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, HiLZ, 164805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 164905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 165005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 165105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1652475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo, 1653475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1654c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1655e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1656475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1657b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT); 1658be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!"); 1659c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, true/*irrelevant*/, dl), Lo, Hi); 1660ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1661ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 1662475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo, 1663475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1664c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1665e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1666475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1667b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Op.getValueType(), VT); 1668be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 1669c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, false/*irrelevant*/, dl), Lo, Hi); 1670ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1671ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 167269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N, 1673475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1674ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalLoad(N)) { 1675ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands ExpandRes_NormalLoad(N, Lo, Hi); 167678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands return; 167778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands } 167878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 167978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 168078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1681e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 168223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1683475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 1684475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 1685cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::LoadExtType ExtType = N->getExtensionType(); 1686cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 1687cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 16881e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1689786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1690cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 169178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 1692cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 169378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 16948a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 1695cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1696a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 16971e559443a17d1b335f697551c6263ba60d5dd827David Greene MemVT, isVolatile, isNonTemporal, Alignment); 1698cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1699cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Remember the chain. 1700cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Ch = Lo.getValue(1); 1701cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1702cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExtType == ISD::SEXTLOAD) { 1703cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is obtained by SRA'ing all but one of the bits of the 1704cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // lo part. 170583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 1706786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 170792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 1708cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (ExtType == ISD::ZEXTLOAD) { 1709cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is just a zero. 1710cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = DAG.getConstant(0, NVT); 1711cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1712cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(ExtType == ISD::EXTLOAD && "Unknown extload!"); 1713cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is undefined. 1714e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); 1715cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1716cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 1717cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 1718ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getLoad(NVT, dl, Ch, Ptr, N->getPointerInfo(), 17191e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1720cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1721cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 172283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 172323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 1724cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1725cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 172683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1727786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 17280bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1729a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, 1730ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), NEVT, 17311e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 17321e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1733cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1734cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1735cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1736825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1737cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1738cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1739cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned loads at 1740cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 17418a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 17424e918b2c8ca81edd63f6708e08835b2c14648615Dan Gohman unsigned EBytes = MemVT.getStoreSize(); 174383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1744cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 1745cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1746cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load both the high bits and maybe some of the low bits. 1747a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 17488a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT::getIntegerVT(*DAG.getContext(), 17498a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman MemVT.getSizeInBits() - ExcessBits), 17501e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1751cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1752cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 1753786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 17540bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1755cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load the rest of the low bits. 1756a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr, 1757ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 175823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 17591e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 17601e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1761cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1762cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1763cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1764825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1765cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1766cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 176783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 1768cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer low bits from the bottom of Hi to the top of Lo. 1769786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, Lo, 1770786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, Hi, 1771cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 177292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 1773cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Move high bits to the right position in Hi. 17747fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ExtType == ISD::SEXTLOAD ? ISD::SRA : ISD::SRL, dl, 1775786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, Hi, 177683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 177792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 1778cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1779cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1780cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1781cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Legalized the chain result - switch anything that used the old chain to 1782cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // use the new one. 1783475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Ch); 1784cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1785cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 178669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Logical(SDNode *N, 1787475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1788786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1789475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 179069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 179169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 1792786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LL, RL); 1793786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LH, RH); 1794cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1795cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 179605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N, 1797475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1798e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 179923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1800c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 180169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1802f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, NVT); 1803f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, NVT); 1804f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, NVT); 1805f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, NVT); 1806cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 1807475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 180869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 180969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 181083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned OuterBitSize = VT.getSizeInBits(); 1811e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands unsigned InnerBitSize = NVT.getSizeInBits(); 1812cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned LHSSB = DAG.ComputeNumSignBits(N->getOperand(0)); 1813cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned RHSSB = DAG.ComputeNumSignBits(N->getOperand(1)); 181469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1815e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 1816e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (DAG.MaskedValueIsZero(N->getOperand(0), HighMask) && 1817e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands DAG.MaskedValueIsZero(N->getOperand(1), HighMask)) { 1818cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The inputs are both zero-extended. 1819cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1820cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a umul_lohi. 1821786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::UMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1822ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1823cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1824cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1825cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU) { 1826cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhu+mul. 1827786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1828786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1829cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1830cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1831cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1832e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 1833cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The input values are both sign-extended. 1834cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasSMUL_LOHI) { 1835cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a smul_lohi. 1836786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1837ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1838cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1839cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1840cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHS) { 1841cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhs+mul. 1842786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1843786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHS, dl, NVT, LL, RL); 1844cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1845cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1846cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1847cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1848cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Lo,Hi = umul LHS, RHS. 1849786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, dl, 1850cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getVTList(NVT, NVT), LL, RL); 1851cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Lo = UMulLOHI; 1852cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = UMulLOHI.getValue(1); 1853786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1854786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1855786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1856786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1857cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1858cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1859e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (HasMULHU) { 1860786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1861786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1862786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1863786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1864786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1865786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1866e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands return; 1867e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands } 1868cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 186941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1870cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If nothing else, we can make a libcall. 18715ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1872825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 187315c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::MUL_I16; 1874825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 18755ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I32; 1876825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 1877e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands LC = RTLIB::MUL_I64; 1878825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 18795ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I128; 18805ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"); 1881e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands 1882475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1883c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true/*irrelevant*/, dl), Lo, Hi); 188441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1885cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1886268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_SADDSUBO(SDNode *Node, 1887268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 1888268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = Node->getOperand(0); 1889268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = Node->getOperand(1); 1890268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = Node->getDebugLoc(); 1891268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1892268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 1893268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 1894268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(Node->getOpcode() == ISD::SADDO ? 1895268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 1896268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 1897268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 1898268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1899268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Compute the overflow. 1900268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1901268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // LHSSign -> LHS >= 0 1902268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // RHSSign -> RHS >= 0 1903268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // SumSign -> Sum >= 0 1904268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1905268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Add: 1906268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign == RHSSign) && (LHSSign != SumSign) 1907268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Sub: 1908268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign != RHSSign) && (LHSSign != SumSign) 1909268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1910268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman EVT OType = Node->getValueType(1); 1911268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Zero = DAG.getConstant(0, LHS.getValueType()); 1912268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1913268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHSSign = DAG.getSetCC(dl, OType, LHS, Zero, ISD::SETGE); 1914268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHSSign = DAG.getSetCC(dl, OType, RHS, Zero, ISD::SETGE); 1915268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SignsMatch = DAG.getSetCC(dl, OType, LHSSign, RHSSign, 1916268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman Node->getOpcode() == ISD::SADDO ? 1917268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETEQ : ISD::SETNE); 1918268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1919268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSign = DAG.getSetCC(dl, OType, Sum, Zero, ISD::SETGE); 1920268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSignNE = DAG.getSetCC(dl, OType, LHSSign, SumSign, ISD::SETNE); 1921268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1922268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Cmp = DAG.getNode(ISD::AND, dl, OType, SignsMatch, SumSignNE); 1923268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1924268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 1925268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(Node, 1), Cmp); 1926268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 1927268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 192869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N, 1929475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1930e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1931c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 19325ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 19335ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1934825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 1935a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SDIV_I16; 1936825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 19375ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I32; 1938825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 19395ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I64; 1940825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 19415ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I128; 19425ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!"); 19435ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 1944475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1945c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 1946ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1947ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 194869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N, 1949475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1950e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1951c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 195269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 195369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // If we can emit an efficient shift operation, do so now. Check to see if 1954cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the RHS is a constant. 1955cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1))) 1956f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman return ExpandShiftByConstant(N, CN->getZExtValue(), Lo, Hi); 1957cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1958cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If we can determine that the high bit of the shift is zero or one, even if 1959cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the low bits are variable, emit this shift in an optimized form. 1960cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExpandShiftWithKnownAmountBit(N, Lo, Hi)) 1961cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 196269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1963cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this target supports shift_PARTS, use it. First, map to the _PARTS opc. 1964cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned PartsOpc; 196541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 1966cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SHL_PARTS; 196741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 1968cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRL_PARTS; 196941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 1970cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 1971cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRA_PARTS; 1972cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 197369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1974cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Next check to see if the target supports this SHL_PARTS operation or if it 1975cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // will custom expand it. 197623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1977cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::LegalizeAction Action = TLI.getOperationAction(PartsOpc, NVT); 1978cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 1979cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Action == TargetLowering::Custom) { 1980cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Expand the subcomponents. 1981475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 198269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 198369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1984475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, N->getOperand(1) }; 1985e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = LHSL.getValueType(); 1986fc1665793e62eb4f26d24b8a19eecf59cd872e2aDan Gohman Lo = DAG.getNode(PartsOpc, dl, DAG.getVTList(VT, VT), Ops, 3); 1987cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = Lo.getValue(1); 1988cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1989cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 199041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1991cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Otherwise, emit a libcall. 1992dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 199341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands bool isSigned; 199441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 199541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; /*sign irrelevant*/ 1996825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 199715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SHL_I16; 1998825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 1999dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I32; 2000825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2001dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I64; 2002825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2003dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I128; 200441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 200541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; 2006825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 200715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRL_I16; 2008825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2009dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I32; 2010825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2011dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I64; 2012825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2013dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I128; 201441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 201541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 201641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = true; 2017825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 201815c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRA_I16; 2019825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2020dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I32; 2021825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2022dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I64; 2023825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2024dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I128; 202541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } 20268c899ee031481dbece5f111379a274c848cb5902Duncan Sands 20276fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (LC != RTLIB::UNKNOWN_LIBCALL && TLI.getLibcallName(LC)) { 20286fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 20296fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SplitInteger(MakeLibCall(LC, VT, Ops, 2, isSigned, dl), Lo, Hi); 20306fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return; 20316fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 203241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 20336fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (!ExpandShiftWithUnknownAmountBit(N, Lo, Hi)) 2034c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unsupported shift!"); 203541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 2036cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 203705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SIGN_EXTEND(SDNode *N, 2038475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 203923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2040786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2041475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 204205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2043b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is sign extension of the input (degenerates to a copy). 2044786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND, dl, NVT, N->getOperand(0)); 204505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part is obtained by SRA'ing all but one of the bits of low part. 204605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned LoSize = NVT.getSizeInBits(); 2047786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 204892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 204905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 205005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 205105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 205296e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 205396e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 205405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2055475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 205605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 205705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 205805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 205905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 206005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 206105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2062786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 2063285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 2064285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng ExcessBits))); 206505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 206605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 206705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 206805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer:: 2069475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi) { 2070786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 207169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 2072e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 2073d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 207405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (EVT.bitsLE(Lo.getValueType())) { 207505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the low part if needed. 2076786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Lo.getValueType(), Lo, 207705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(1)); 2078d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 207905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part gets the sign extension from the lo-part. This handles 208005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // things like sextinreg V:i64 from i8. 2081786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, Hi.getValueType(), Lo, 208205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Hi.getValueType().getSizeInBits()-1, 208392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 208405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 208505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. Leave the low part alone, 208605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the high part. 208705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 208805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands EVT.getSizeInBits() - Lo.getValueType().getSizeInBits(); 2089786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 209054e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 209154e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits))); 209205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 209305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2094d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 209505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N, 2096475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2097e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2098c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 209905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 210005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2101825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2102a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SREM_I16; 2103825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 210405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I32; 2105825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 210605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I64; 2107825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 210805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I128; 210905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!"); 211005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2111475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2112c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 2113d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2114d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 211505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N, 2116475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 211723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2118786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2119786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::TRUNCATE, dl, NVT, N->getOperand(0)); 2120786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, 2121786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getOperand(0).getValueType(), N->getOperand(0), 212292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVT.getSizeInBits(), TLI.getPointerTy())); 2123786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::TRUNCATE, dl, NVT, Hi); 2124d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2125d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2126268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_UADDSUBO(SDNode *N, 2127268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 2128268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = N->getOperand(0); 2129268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = N->getOperand(1); 2130268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = N->getDebugLoc(); 2131268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2132268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 2133268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 2134268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(N->getOpcode() == ISD::UADDO ? 2135268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 2136268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 2137268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 2138268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2139268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Calculate the overflow: addition overflows iff a + b < a, and subtraction 2140268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // overflows iff a - b > a. 2141268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Sum, LHS, 2142268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman N->getOpcode () == ISD::UADDO ? 2143268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETULT : ISD::SETUGT); 2144268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2145268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2146268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(N, 1), Ofl); 2147268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2148268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 214905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N, 2150475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2151e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2152c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2153d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 215405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2155825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2156a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UDIV_I16; 2157825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 215805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I32; 2159825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 216005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I64; 2161825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 216205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I128; 216305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!"); 2164d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2165475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2166c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2167d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2168cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 216905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N, 2170475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2171e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2172c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 217369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 217405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2175825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2176a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UREM_I16; 2177825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 217805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I32; 2179825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 218005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I64; 2181825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 218205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I128; 218305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!"); 2184cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2185475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2186c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2187cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2188cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 218905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N, 2190475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 219123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2192786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2193475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 219405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2195b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is zero extension of the input (degenerates to a copy). 2196786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N->getOperand(0)); 219705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // The high part is just a zero. 219805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 219905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 220005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 220196e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 220296e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 220305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2204475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 220505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 220605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 220705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 220805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 220905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 221005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2211adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng Hi = DAG.getZeroExtendInReg(Hi, dl, 221254e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher EVT::getIntegerVT(*DAG.getContext(), 221354e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits)); 22149e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman } 2215cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2216cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2217cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2218cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 221969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Operand Expansion 2220cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2221cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 222205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandIntegerOperand - This method is called when the specified operand of 222305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// the specified node is found to need expansion. At this point, all of the 222405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// result types of the node are known to be legal, but other operands of the 222505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// node may need promotion or expansion as well as the specified one. 222605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer::ExpandIntegerOperand(SDNode *N, unsigned OpNo) { 2227d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer operand: "; N->dump(&DAG); dbgs() << "\n"); 2228475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 2229051bb7b07504be9f848f7cce802e62ed24980bc5Duncan Sands 2230f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 2231bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 223211ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands 2233bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 2234bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 223505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #ifndef NDEBUG 2236d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerOperand Op #" << OpNo << ": "; 2237d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 223805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #endif 2239c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand this operator's operand!"); 2240bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta 2241bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = ExpandOp_BITCAST(N); break; 224292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BR_CC: Res = ExpandIntOp_BR_CC(N); break; 224392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break; 2244bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break; 2245bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: Res = ExpandOp_INSERT_VECTOR_ELT(N); break; 2246bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SCALAR_TO_VECTOR: Res = ExpandOp_SCALAR_TO_VECTOR(N); break; 224792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SELECT_CC: Res = ExpandIntOp_SELECT_CC(N); break; 224892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SETCC: Res = ExpandIntOp_SETCC(N); break; 224992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SINT_TO_FP: Res = ExpandIntOp_SINT_TO_FP(N); break; 225092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::STORE: Res = ExpandIntOp_STORE(cast<StoreSDNode>(N), OpNo); break; 225192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::TRUNCATE: Res = ExpandIntOp_TRUNCATE(N); break; 225292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::UINT_TO_FP: Res = ExpandIntOp_UINT_TO_FP(N); break; 225355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 225455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 225555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 225655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 225755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 22581c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::ROTR: Res = ExpandIntOp_Shift(N); break; 22591c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::RETURNADDR: 22601c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::FRAMEADDR: Res = ExpandIntOp_RETURNADDR(N); break; 226105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 226269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 226305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If the result is null, the sub-method took care of registering results etc. 2264ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Res.getNode()) return false; 226547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 226647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 226747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 226847d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 226905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 2270cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 227105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 227205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Invalid operand expansion"); 227305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2274475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 227505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 2276cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2277cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 227811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// IntegerExpandSetCCOperands - Expand the operands of a comparison. This code 227911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// is shared among BR_CC, SELECT_CC, and SETCC handlers. 2280475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::IntegerExpandSetCCOperands(SDValue &NewLHS, 2281475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &NewRHS, 2282c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen ISD::CondCode &CCCode, 2283c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl) { 2284475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 228569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewLHS, LHSLo, LHSHi); 228669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewRHS, RHSLo, RHSHi); 228741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2288cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (CCCode == ISD::SETEQ || CCCode == ISD::SETNE) { 228911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (RHSLo == RHSHi) { 229011ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) { 2291cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (RHSCST->isAllOnesValue()) { 2292cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Equality comparison to -1. 22937fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands NewLHS = DAG.getNode(ISD::AND, dl, 2294786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHSLo.getValueType(), LHSLo, LHSHi); 2295cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSLo; 2296cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2297cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 229811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 229911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 230069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2301786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSLo, RHSLo); 2302786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewRHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSHi, RHSHi); 2303786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::OR, dl, NewLHS.getValueType(), NewLHS, NewRHS); 2304cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 2305cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2306cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 230769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2308cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this is a comparison of the sign bit, just look at the top part. 2309cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // X > -1, x < 0 2310cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(NewRHS)) 2311002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((CCCode == ISD::SETLT && CST->isNullValue()) || // X < 0 2312cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETGT && CST->isAllOnesValue())) { // X > -1 2313cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = LHSHi; 2314cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSHi; 2315cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2316cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 231769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2318cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // FIXME: This generated code sucks. 2319cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::CondCode LowCC; 2320cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (CCCode) { 2321c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer setcc!"); 2322cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLT: 2323cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULT: LowCC = ISD::SETULT; break; 2324cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGT: 2325cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2326cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLE: 2327cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULE: LowCC = ISD::SETULE; break; 2328cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGE: 2329cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2330cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 233169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2332cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2333cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2334cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 233569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2336cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // NOTE: on targets without efficient SELECT of bools, we can always use 2337cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 233878d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, true, NULL); 2339475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2; 23405480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo.getValueType()), 2341ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSLo, RHSLo, LowCC, false, DagCombineInfo, dl); 2342ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 2343786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()), 23445480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSLo, RHSLo, LowCC); 23455480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2346ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, CCCode, false, DagCombineInfo, dl); 2347ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 2348786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp2 = DAG.getNode(ISD::SETCC, dl, 2349786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(LHSHi.getValueType()), 23505480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, DAG.getCondCode(CCCode)); 235169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2352ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 2353ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 2354002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 2355002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 2356cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 2357cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 2358002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 2359cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 2360cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 2361cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // low part is known false, returns high part. 2362cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LE / GE, if high part is known false, ignore the low part. 2363cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LT / GT, if high part is known true, ignore the low part. 2364cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = Tmp2; 2365475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2366cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2367cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 236869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 23695480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands NewLHS = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2370fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel LHSHi, RHSHi, ISD::SETEQ, false, 2371ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen DagCombineInfo, dl); 2372ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!NewLHS.getNode()) 2373786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()), 23745480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, ISD::SETEQ); 2375786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::SELECT, dl, Tmp1.getValueType(), 2376cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS, Tmp1, Tmp2); 2377475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2378cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2379cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2380475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_BR_CC(SDNode *N) { 2381475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3); 238205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get(); 2383c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 238405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 238505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 238605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2387ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 238805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 238905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 239005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 239105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 239205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2393027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 239405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode), NewLHS, NewRHS, 2395027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(4)), 0); 239605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 239705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2398475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SELECT_CC(SDNode *N) { 2399475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 240005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get(); 2401c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 240205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 240305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 240405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2405ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 240605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 240705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 240805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 240905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 241005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2411027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 241205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(2), N->getOperand(3), 2413027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 241405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 241505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2416475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SETCC(SDNode *N) { 2417475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 241805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get(); 2419c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 242005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 242105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, use it. 2422ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 242305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(NewLHS.getValueType() == N->getValueType(0) && 242405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Unexpected setcc expansion!"); 242505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return NewLHS; 242605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 242705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 242805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, update N to have the operands specified. 2429027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 2430027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 243105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 243205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 243355467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::ExpandIntOp_Shift(SDNode *N) { 243455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // The value being shifted is legal, but the shift amount is too big. 243555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // It follows that either the result of the shift is undefined, or the 243655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // upper half of the shift amount is zero. Just use the lower half. 243755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta SDValue Lo, Hi; 243855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta GetExpandedInteger(N->getOperand(1), Lo, Hi); 2439027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Lo), 0); 244055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 244155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 24421c3436a67afcfaee5f972836ff1ffff2985adce1Anton KorobeynikovSDValue DAGTypeLegalizer::ExpandIntOp_RETURNADDR(SDNode *N) { 24431c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // The argument of RETURNADDR / FRAMEADDR builtin is 32 bit contant. This 24441c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // surely makes pretty nice problems on 8/16 bit targets. Just truncate this 24451c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // constant to valid type. 24461c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov SDValue Lo, Hi; 24471c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov GetExpandedInteger(N->getOperand(0), Lo, Hi); 2448027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, Lo), 0); 24491c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov} 24501c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov 2451475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) { 2452475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2453e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2454b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT); 245505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 245605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this SINT_TO_FP!"); 2457c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, N->getDebugLoc()); 245805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 245905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2460475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) { 2461ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalStore(N)) 2462ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands return ExpandOp_NormalStore(N, OpNo); 246378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 246478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 2465cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(OpNo == 1 && "Can only expand the stored value so far"); 2466cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2467e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getOperand(1).getValueType(); 246823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2469475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 2470475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 2471cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 2472cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 24731e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 2474786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2475475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2476cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2477a1ace76c70ae5332d6f33fce5c0c1e2fdb8cca11Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 2478cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 247978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 248069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2481ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 24821e559443a17d1b335f697551c6263ba60d5dd827David Greene N->getMemoryVT(), isVolatile, isNonTemporal, 24831e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 2484ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2485bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck 2486ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (TLI.isLittleEndian()) { 2487cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 248869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2489cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2490ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 24911e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 2492cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2493cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 249483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 249523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 2496cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2497cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 249883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2499786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 25000bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2501ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, 2502ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2503ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NEVT, isVolatile, isNonTemporal, 25041e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 2505825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2506ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2507cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2508ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Big-endian - high bits are at low addresses. Favor aligned stores at 2509ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // the cost of some bit-fiddling. 2510ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner GetExpandedInteger(N->getValue(), Lo, Hi); 2511ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2512ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT ExtVT = N->getMemoryVT(); 2513ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned EBytes = ExtVT.getStoreSize(); 2514ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned IncrementSize = NVT.getSizeInBits()/8; 2515ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 2516ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT HiVT = EVT::getIntegerVT(*DAG.getContext(), 2517ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner ExtVT.getSizeInBits() - ExcessBits); 2518ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2519ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (ExcessBits < NVT.getSizeInBits()) { 2520ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Transfer high bits from the top of Lo to the bottom of Hi. 2521ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::SHL, dl, NVT, Hi, 2522ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 2523ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy())); 2524ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::OR, dl, NVT, Hi, 2525ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getNode(ISD::SRL, dl, NVT, Lo, 2526ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(ExcessBits, 2527ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy()))); 2528cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2529ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2530ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store both the high bits and maybe some of the low bits. 2531ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getPointerInfo(), 2532ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner HiVT, isVolatile, isNonTemporal, Alignment); 2533ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2534ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Increment the pointer to the other half. 2535ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 2536ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getIntPtrConstant(IncrementSize)); 2537ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store the lowest ExcessBits bits in the second half. 2538ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getTruncStore(Ch, dl, Lo, Ptr, 2539ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2540ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 2541ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner isVolatile, isNonTemporal, 2542ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MinAlign(Alignment, IncrementSize)); 2543ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2544cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 254505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2546475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_TRUNCATE(SDNode *N) { 2547475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 254805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 254905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Just truncate the low part of the source. 2550786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), InL); 255105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 255205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 25538d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesenstatic const fltSemantics *EVTToAPFloatSemantics(EVT VT) { 25548d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen switch (VT.getSimpleVT().SimpleTy) { 25558d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen default: llvm_unreachable("Unknown FP format"); 25568d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f32: return &APFloat::IEEEsingle; 25578d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f64: return &APFloat::IEEEdouble; 25588d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f80: return &APFloat::x87DoubleExtended; 25598d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f128: return &APFloat::IEEEquad; 25608d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::ppcf128: return &APFloat::PPCDoubleDouble; 25618d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen } 25628d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen} 25638d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen 2564475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) { 2565475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2566e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SrcVT = Op.getValueType(); 2567e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2568c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 256905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 25708d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // The following optimization is valid only if every value in SrcVT (when 25718d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // treated as signed) is representable in DstVT. Check that the mantissa 25728d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // size of DstVT is >= than the number of bits in SrcVT -1. 25738d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen const fltSemantics *sem = EVTToAPFloatSemantics(DstVT); 25748d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen if (APFloat::semanticsPrecision(*sem) >= SrcVT.getSizeInBits()-1 && 25758d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen TLI.getOperationAction(ISD::SINT_TO_FP, SrcVT) == TargetLowering::Custom){ 257605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Do a signed conversion then adjust the result. 2577786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SignedConv = DAG.getNode(ISD::SINT_TO_FP, dl, DstVT, Op); 257805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SignedConv = TLI.LowerOperation(SignedConv, DAG); 257905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 258005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The result of the signed conversion needs adjusting if the 'sign bit' of 258105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // the incoming integer was set. To handle this, we dynamically test to see 258205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // if it is set, and, if so, add a fudge factor. 258305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 258405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE32 = 0x4F800000ULL; 258505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE64 = 0x5F800000ULL; 258605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE128 = 0x7F800000ULL; 258705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 258805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt FF(32, 0); 2589825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (SrcVT == MVT::i32) 259005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE32); 2591825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i64) 259205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE64); 2593825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i128) 259405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE128); 259505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else 259605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(false && "Unsupported UINT_TO_FP!"); 259705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 259805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Check whether the sign bit is set. 2599475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 260005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(Op, Lo, Hi); 26017fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue SignSet = DAG.getSetCC(dl, 2602786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(Hi.getValueType()), 26035480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Hi, DAG.getConstant(0, Hi.getValueType()), 2604ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands ISD::SETLT); 260505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 260605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Build a 64 bit pair (0, FF) in the constant pool, with FF in the lo bits. 2607001dbfebcbbded8c8e74b19e838b50da2b6c6fb5Owen Anderson SDValue FudgePtr = DAG.getConstantPool( 2608eed707b1e6097aac2bb6b3d47271f6300ace7f2eOwen Anderson ConstantInt::get(*DAG.getContext(), FF.zext(64)), 260949c18cce976c158e86f54c681dff21bb81640fb8Duncan Sands TLI.getPointerTy()); 261005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 261105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get a pointer to FF if the sign bit was set, or to 0 otherwise. 2612475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0); 2613475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Four = DAG.getIntPtrConstant(4); 261405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.isBigEndian()) std::swap(Zero, Four); 2615786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Offset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), SignSet, 2616ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands Zero, Four); 26171606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(FudgePtr)->getAlignment(); 2618786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen FudgePtr = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), FudgePtr, Offset); 261987a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 262005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 262105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Load the value out, extending it from f32 to the destination float type. 262205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // FIXME: Avoid the extend by constructing the right constant pool? 2623a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Fudge = DAG.getExtLoad(ISD::EXTLOAD, dl, DstVT, DAG.getEntryNode(), 26243d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner FudgePtr, 26253d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MachinePointerInfo::getConstantPool(), 26263d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MVT::f32, 26271e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, Alignment); 2628786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::FADD, dl, DstVT, SignedConv, Fudge); 262905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 263005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 263105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, use a libcall. 2632b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT); 263305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 263405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this UINT_TO_FP!"); 2635c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, dl); 263605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2637fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2638fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N) { 2639fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue InOp0 = N->getOperand(0); 2640fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InVT = InOp0.getValueType(); 2641fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 2642fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2643fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2644fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2645fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2646fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned OutNumElems = N->getValueType(0).getVectorNumElements(); 2647fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2648fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2649fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2650fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue BaseIdx = N->getOperand(1); 2651fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2652fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 2653fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != OutNumElems; ++i) { 2654fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2655fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract the element from the original vector. 2656fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Index = DAG.getNode(ISD::ADD, dl, BaseIdx.getValueType(), 2657fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem BaseIdx, DAG.getIntPtrConstant(i)); 2658fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2659fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem InVT.getVectorElementType(), N->getOperand(0), Index); 2660fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2661fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, Ext); 2662fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Insert the converted element to the new vector. 2663fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2664fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2665fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2666fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2667fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2668fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2669fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2670fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VECTOR_SHUFFLE(SDNode *N) { 2671fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2672fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem ShuffleVectorSDNode *SV = cast<ShuffleVectorSDNode>(N); 2673fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT VT = N->getValueType(0); 2674fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2675fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2676fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElts = VT.getVectorNumElements(); 2677fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<int, 8> NewMask; 2678fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElts; ++i) { 2679fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewMask.push_back(SV->getMaskElt(i)); 2680fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2681fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2682fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2683fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = GetPromotedInteger(N->getOperand(1)); 2684fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2685fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2686fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getVectorShuffle(OutVT, dl, V0,V1, &NewMask[0]); 2687fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2688fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2689fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2690fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_VECTOR(SDNode *N) { 2691fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2692fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue InOp0 = N->getOperand(0); 2693fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InVT = InOp0.getValueType(); 2694fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 2695fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2696fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2697fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2698fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2699fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElems = N->getNumOperands(); 2700fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2701fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2702fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2703fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2704fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 2705fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElems; ++i) { 2706fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(i)); 2707fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2708fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2709fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2710fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2711fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2712fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2713fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_SCALAR_TO_VECTOR(SDNode *N) { 2714fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2715fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2716fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2717fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue InOp0 = N->getOperand(0); 2718fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InVT = InOp0.getValueType(); 2719fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 2720fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(!InVT.isVector() && "Input must not be a scalar"); 2721fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2722fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2723fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2724fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2725fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2726fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2727fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(0)); 2728fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2729fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, NOutVT, Op); 2730fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2731fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2732fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_INSERT_VECTOR_ELT(SDNode *N) { 2733fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2734fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue InOp0 = N->getOperand(0); 2735fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InVT = InOp0.getValueType(); 2736fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InElVT = InVT.getVectorElementType(); 2737fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 2738fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2739fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2740fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2741fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2742fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2743fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2744fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2745fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2746fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2747fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue ConvertedVector = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, InOp0); 2748fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2749fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue ConvElem = DAG.getNode(ISD::ANY_EXTEND, dl, 2750fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NOutVTElem, N->getOperand(1)); 2751fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::INSERT_VECTOR_ELT, dl,NOutVT, 2752fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem ConvertedVector, ConvElem, N->getOperand(2)); 2753fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2754fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2755fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N) { 2756fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2757fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2758fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = N->getOperand(1); 2759fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2760fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem V0->getValueType(0).getScalarType(), V0, V1); 2761fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2762fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::TRUNCATE, dl, N->getValueType(0), Ext); 2763fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2764fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2765fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2766fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_CONCAT_VECTORS(SDNode *N) { 2767fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2768fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2769fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2770fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT RetSclrTy = N->getValueType(0).getVectorElementType(); 2771fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2772fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> NewOps; 2773fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2774fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // For each incoming vector 2775fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned VecIdx = 0, E = N->getNumOperands(); VecIdx!= E; ++VecIdx) { 2776fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Incoming = GetPromotedInteger(N->getOperand(VecIdx)); 2777fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT SclrTy = Incoming->getValueType(0).getVectorElementType(); 2778fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElem = Incoming->getValueType(0).getVectorNumElements(); 2779fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2780fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i=0; i<NumElem; ++i) { 2781fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract element from incoming vector 2782fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ex = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, SclrTy, 2783fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Incoming, DAG.getIntPtrConstant(i)); 2784fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Tr = DAG.getNode(ISD::TRUNCATE, dl, RetSclrTy, Ex); 2785fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewOps.push_back(Tr); 2786fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2787fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2788fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2789fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, N->getValueType(0), 2790fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem &NewOps[0], NewOps.size()); 2791fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2792