169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----- LegalizeIntegerTypes.cpp - Legalization of integer types -------===// 2cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 3cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// The LLVM Compiler Infrastructure 4cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 8cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 9cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 1069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// This file implements integer type expansion and promotion for LegalizeTypes. 1169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Promotion is the act of changing a computation in an illegal type into a 1269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// computation in a larger type. For example, implementing i8 arithmetic in an 1369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// i32 register (often needed on powerpc). 1469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Expansion is the act of changing a computation in an illegal type into a 1578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands// computation in two identical registers of a smaller type. For example, 1669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// implementing i64 arithmetic in two i32 registers (often needed on 32-bit 1769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// targets). 18cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 19cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 20cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 21cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#include "LegalizeTypes.h" 22362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher#include "llvm/DerivedTypes.h" 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!"); 504c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands case ISD::MERGE_VALUES:Res = PromoteIntRes_MERGE_VALUES(N, ResNo); break; 519fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertSext: Res = PromoteIntRes_AssertSext(N); break; 529fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertZext: Res = PromoteIntRes_AssertZext(N); break; 53bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntRes_BITCAST(N); break; 549fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BSWAP: Res = PromoteIntRes_BSWAP(N); break; 559fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BUILD_PAIR: Res = PromoteIntRes_BUILD_PAIR(N); break; 569fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::Constant: Res = PromoteIntRes_Constant(N); break; 5700ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang case ISD::CONVERT_RNDSAT: 589fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_CONVERT_RNDSAT(N); break; 5963974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth case ISD::CTLZ_ZERO_UNDEF: 609fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTLZ: Res = PromoteIntRes_CTLZ(N); break; 619fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTPOP: Res = PromoteIntRes_CTPOP(N); break; 6263974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth case ISD::CTTZ_ZERO_UNDEF: 639fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTTZ: Res = PromoteIntRes_CTTZ(N); break; 64bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ISD::EXTRACT_VECTOR_ELT: 659fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_EXTRACT_VECTOR_ELT(N); break; 669fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::LOAD: Res = PromoteIntRes_LOAD(cast<LoadSDNode>(N));break; 679fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT: Res = PromoteIntRes_SELECT(N); break; 68436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem case ISD::VSELECT: Res = PromoteIntRes_VSELECT(N); break; 699fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT_CC: Res = PromoteIntRes_SELECT_CC(N); break; 709fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SETCC: Res = PromoteIntRes_SETCC(N); break; 719fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SHL: Res = PromoteIntRes_SHL(N); break; 728d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands case ISD::SIGN_EXTEND_INREG: 739fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_SIGN_EXTEND_INREG(N); break; 749fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRA: Res = PromoteIntRes_SRA(N); break; 759fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRL: Res = PromoteIntRes_SRL(N); break; 769fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::TRUNCATE: Res = PromoteIntRes_TRUNCATE(N); break; 779fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UNDEF: Res = PromoteIntRes_UNDEF(N); break; 789fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::VAARG: Res = PromoteIntRes_VAARG(N); break; 79bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 80fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_SUBVECTOR: 81fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_EXTRACT_SUBVECTOR(N); break; 82fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::VECTOR_SHUFFLE: 83fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_VECTOR_SHUFFLE(N); break; 84fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::INSERT_VECTOR_ELT: 85fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_INSERT_VECTOR_ELT(N); break; 86fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::BUILD_VECTOR: 87fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_BUILD_VECTOR(N); break; 88fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::SCALAR_TO_VECTOR: 89fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_SCALAR_TO_VECTOR(N); break; 90c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem case ISD::CONCAT_VECTORS: 91c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem Res = PromoteIntRes_CONCAT_VECTORS(N); break; 92fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 9369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SIGN_EXTEND: 9469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ZERO_EXTEND: 959fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::ANY_EXTEND: Res = PromoteIntRes_INT_EXTEND(N); break; 96bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 9769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: 989fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::FP_TO_UINT: Res = PromoteIntRes_FP_TO_XINT(N); break; 9969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 100927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP32_TO_FP16:Res = PromoteIntRes_FP32_TO_FP16(N); break; 101927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 10269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AND: 10369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::OR: 10469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::XOR: 10569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ADD: 10669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SUB: 1079fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::MUL: Res = PromoteIntRes_SimpleIntBinOp(N); break; 10869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SDIV: 1109fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SREM: Res = PromoteIntRes_SDIV(N); break; 11169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 11269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::UDIV: 1139fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UREM: Res = PromoteIntRes_UDIV(N); break; 1148ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 115253174bf50c932abaa680f465e2888c0e5272267Bill Wendling case ISD::SADDO: 1169fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SSUBO: Res = PromoteIntRes_SADDSUBO(N, ResNo); break; 11774c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::UADDO: 1189fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::USUBO: Res = PromoteIntRes_UADDSUBO(N, ResNo); break; 11974c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::SMULO: 1209fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UMULO: Res = PromoteIntRes_XMULO(N, ResNo); break; 121b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 122331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman case ISD::ATOMIC_LOAD: 123331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman Res = PromoteIntRes_Atomic0(cast<AtomicSDNode>(N)); break; 124331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 1250b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_ADD: 1260b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_SUB: 1270b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_AND: 1280b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_OR: 1290b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_XOR: 1300b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_NAND: 1310b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MIN: 1320b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MAX: 1330b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMIN: 1340b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMAX: 1350b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_SWAP: 1369fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic1(cast<AtomicSDNode>(N)); break; 137b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1380b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_CMP_SWAP: 1399fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic2(cast<AtomicSDNode>(N)); break; 14069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 14169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1429fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands // If the result is null then the sub-method took care of registering it. 1439fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (Res.getNode()) 1449fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SetPromotedInteger(SDValue(N, ResNo), Res); 14569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 14669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1474c19e12d28749c717d3b384962c9ec92796af1c9Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_MERGE_VALUES(SDNode *N, 1484c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands unsigned ResNo) { 1494c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands SDValue Op = DisintegrateMERGE_VALUES(N, ResNo); 15062bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman return GetPromotedInteger(Op); 15162bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman} 15262bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman 153475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertSext(SDNode *N) { 15495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Sign-extend the new bits, and continue the assertion. 155c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = SExtPromotedInteger(N->getOperand(0)); 156786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertSext, N->getDebugLoc(), 157786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 15895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 15995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 160475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertZext(SDNode *N) { 16195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Zero the new bits, and continue the assertion. 162c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 163786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertZext, N->getDebugLoc(), 164786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 16595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 16695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 167331120b1a482b782e8dffce63033bb8514ba2a96Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntRes_Atomic0(AtomicSDNode *N) { 168331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman EVT ResVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 169331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 170331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getMemoryVT(), ResVT, 171331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getChain(), N->getBasePtr(), 172331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getMemOperand(), N->getOrdering(), 173331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getSynchScope()); 174331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman // Legalized the chain result - switch anything that used the old chain to 175331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman // use the new one. 176331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 177331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman return Res; 178331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman} 179331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 180b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic1(AtomicSDNode *N) { 181b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 1827fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 183786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getMemoryVT(), 1840b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman N->getChain(), N->getBasePtr(), 18555ba816883842e793cdeb32fcb805c4e011b527fEli Friedman Op2, N->getMemOperand(), N->getOrdering(), 18655ba816883842e793cdeb32fcb805c4e011b527fEli Friedman N->getSynchScope()); 187b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 188b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 189b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 190b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 191b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 192b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 193b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic2(AtomicSDNode *N) { 194b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 195b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op3 = GetPromotedInteger(N->getOperand(3)); 196fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 197f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen N->getMemoryVT(), N->getChain(), N->getBasePtr(), 19855ba816883842e793cdeb32fcb805c4e011b527fEli Friedman Op2, Op3, N->getMemOperand(), N->getOrdering(), 19955ba816883842e793cdeb32fcb805c4e011b527fEli Friedman N->getSynchScope()); 200b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 201b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 202b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 203b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 204b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 205b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 206bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) { 207475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = N->getOperand(0); 208e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT InVT = InOp.getValueType(); 20923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 210e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OutVT = N->getValueType(0); 21123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 212786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 21369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 21469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (getTypeAction(InVT)) { 21596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 21669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 21796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 21844bac7cd659090f15face5171e3c346983aeb521Nadav Rotem if (NOutVT.bitsEq(NInVT) && !NOutVT.isVector() && !NInVT.isVector()) 21969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The input promotes to the same size. Convert the promoted value. 220bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetPromotedInteger(InOp)); 22169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 22296e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSoftenFloat: 22369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the integer operand by hand. 224786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, GetSoftenedFloat(InOp)); 22596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 22696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandFloat: 22769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 22896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeScalarizeVector: 22969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert the element to an integer and promote it by hand. 230c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem if (!NOutVT.isVector()) 231c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 232c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem BitConvertToInteger(GetScalarizedVector(InOp))); 233c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem break; 23496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSplitVector: { 235bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck // For example, i32 = BITCAST v2i16 on alpha. Convert the split 23669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // pieces of the input into integers and reassemble in the final type. 237475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 23869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetSplitVector(N->getOperand(0), Lo, Hi); 23969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Lo = BitConvertToInteger(Lo); 24069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Hi = BitConvertToInteger(Hi); 24169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 24269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 24369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 24469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 245786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen InOp = DAG.getNode(ISD::ANY_EXTEND, dl, 246adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT::getIntegerVT(*DAG.getContext(), 247adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng NOutVT.getSizeInBits()), 24869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands JoinIntegers(Lo, Hi)); 249bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp); 25069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 25196e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeWidenVector: 252819026f2f8b13ac7f6051727fce54b95868c3d85Nadav Rotem // The input is widened to the same size. Convert to the widened value. 253819026f2f8b13ac7f6051727fce54b95868c3d85Nadav Rotem // Make sure that the outgoing value is not a vector, because this would 254819026f2f8b13ac7f6051727fce54b95868c3d85Nadav Rotem // make us bitcast between two vectors which are legalized in different ways. 255819026f2f8b13ac7f6051727fce54b95868c3d85Nadav Rotem if (NOutVT.bitsEq(NInVT) && !NOutVT.isVector()) 256fbb6f593c264551a5d585a6c97ff03420b142ea3Nadav Rotem return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetWidenedVector(InOp)); 25787c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang } 25869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 259aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 260aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman CreateStackStoreLoad(InOp, OutVT)); 26169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 26269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 263475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BSWAP(SDNode *N) { 264475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 265e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 266e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 267786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 268c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 269c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 270786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, dl, NVT, DAG.getNode(ISD::BSWAP, dl, NVT, Op), 27153dfa78e4133f6cdb5d860279adc337ea099ac15Duncan Sands DAG.getConstant(DiffBits, TLI.getPointerTy())); 272c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands} 273c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 274475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_PAIR(SDNode *N) { 275bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The pair element type may be legal, or may not promote to the same type as 276bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // the result, for example i14 = BUILD_PAIR (i7, i7). Handle all cases. 277786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), 27854e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), 27954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getValueType(0)), JoinIntegers(N->getOperand(0), 28054e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getOperand(1))); 28169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 28269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 283475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_Constant(SDNode *N) { 284e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 285b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen // FIXME there is no actual debug info here 286b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 287bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Zero extend things like i1, sign extend everything else. It shouldn't 288bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // matter in theory which one we pick, but this tends to give better code? 289bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Opc = VT.isByteSized() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND; 29054e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher SDValue Result = DAG.getNode(Opc, dl, 29154e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), VT), 292a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands SDValue(N, 0)); 293bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(isa<ConstantSDNode>(Result) && "Didn't constant fold ext?"); 294bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Result; 29569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 29669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 29700ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P WangSDValue DAGTypeLegalizer::PromoteIntRes_CONVERT_RNDSAT(SDNode *N) { 29800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 29900ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 30000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 30100ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_SF || CvtCode == ISD::CVT_UF) && 30200ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang "can only promote integers"); 30323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT OutVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 304c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(OutVT, N->getDebugLoc(), N->getOperand(0), 30500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(1), N->getOperand(2), 30600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 30700ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang} 30800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang 309475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTLZ(SDNode *N) { 310c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands // Zero extend to the promoted type and do the count there. 311c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 312b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 313e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 314e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 31563974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth Op = DAG.getNode(N->getOpcode(), dl, NVT, Op); 31669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Subtract off the extra leading bits in the bigger type. 317b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen return DAG.getNode(ISD::SUB, dl, NVT, Op, 31869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DAG.getConstant(NVT.getSizeInBits() - 31969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands OVT.getSizeInBits(), NVT)); 32069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 32169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 322475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTPOP(SDNode *N) { 32369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Zero extend to the promoted type and do the count there. 324c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 325786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTPOP, N->getDebugLoc(), Op.getValueType(), Op); 32669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 32769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 328475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTTZ(SDNode *N) { 329475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 330e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 331e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 332786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 33363974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth if (N->getOpcode() == ISD::CTTZ) { 33463974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth // The count is the same in the promoted type except if the original 33563974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth // value was zero. This can be handled by setting the bit just off 33663974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth // the top of the original type. 33763974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth APInt TopBit(NVT.getSizeInBits(), 0); 33863974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth TopBit.setBit(OVT.getSizeInBits()); 33963974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth Op = DAG.getNode(ISD::OR, dl, NVT, Op, DAG.getConstant(TopBit, NVT)); 34063974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth } 34163974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth return DAG.getNode(N->getOpcode(), dl, NVT, Op); 34269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 34369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 344475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N) { 345786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 34623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 347c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NVT, N->getOperand(0), 348c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman N->getOperand(1)); 34969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 35069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 351475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_FP_TO_XINT(SDNode *N) { 35223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 353a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands unsigned NewOpc = N->getOpcode(); 354786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 355d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 3564c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // If we're promoting a UINT to a larger size and the larger FP_TO_UINT is 3574c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // not Legal, check to see if we can use FP_TO_SINT instead. (If both UINT 35854e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // and SINT conversions are Custom, there is no way to tell which is 35954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // preferable. We choose SINT because that's the right thing on PPC.) 360a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands if (N->getOpcode() == ISD::FP_TO_UINT && 3614c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 362f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NVT)) 363a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NewOpc = ISD::FP_TO_SINT; 364a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 365786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(NewOpc, dl, NVT, N->getOperand(0)); 366a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 367a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // Assert that the converted value fits in the original type. If it doesn't 368a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // (eg: because the value being converted is too big), then the result of the 369a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // original operation was undefined anyway, so the assert is still correct. 370a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands return DAG.getNode(N->getOpcode() == ISD::FP_TO_UINT ? 3710928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem ISD::AssertZext : ISD::AssertSext, dl, NVT, Res, 3720928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem DAG.getValueType(N->getValueType(0).getScalarType())); 373d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands} 374d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 375927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton KorobeynikovSDValue DAGTypeLegalizer::PromoteIntRes_FP32_TO_FP16(SDNode *N) { 376927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 377927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov DebugLoc dl = N->getDebugLoc(); 378927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 379927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov SDValue Res = DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 380927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 381927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov return DAG.getNode(ISD::AssertZext, dl, 382927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov NVT, Res, DAG.getValueType(N->getValueType(0))); 383927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov} 384927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 385475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_INT_EXTEND(SDNode *N) { 38623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 387786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 388be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 38996e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem if (getTypeAction(N->getOperand(0).getValueType()) 39096e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem == TargetLowering::TypePromoteInteger) { 391475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(N->getOperand(0)); 3926959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(Res.getValueType().bitsLE(NVT) && "Extension doesn't make sense!"); 393126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 394bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result and operand types are the same after promotion, simplify 395bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // to an in-register extension. 396bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (NVT == Res.getValueType()) { 397bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The high bits are not guaranteed to be anything. Insert an extend. 398bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::SIGN_EXTEND) 399786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 400bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DAG.getValueType(N->getOperand(0).getValueType())); 401bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::ZERO_EXTEND) 4020928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem return DAG.getZeroExtendInReg(Res, dl, 4030928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem N->getOperand(0).getValueType().getScalarType()); 404bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(N->getOpcode() == ISD::ANY_EXTEND && "Unknown integer extension!"); 405bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 406126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 40769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 40869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 409bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Otherwise, just extend the original operand all the way to the larger type. 410786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 411bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 41269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 413475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_LOAD(LoadSDNode *N) { 414bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 41523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 416bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::LoadExtType ExtType = 417bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::isNON_EXTLoad(N) ? ISD::EXTLOAD : N->getExtensionType(); 418786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 419a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Res = DAG.getExtLoad(ExtType, dl, NVT, N->getChain(), N->getBasePtr(), 4203d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner N->getPointerInfo(), 42147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getMemoryVT(), N->isVolatile(), 4221e559443a17d1b335f697551c6263ba60d5dd827David Greene N->isNonTemporal(), N->getAlignment()); 42369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 424bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Legalized the chain result - switch anything that used the old chain to 425bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 426475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 427bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 42869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 42969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 430874ae251c317788391f9c3f113957802d390a063Dale Johannesen/// Promote the overflow flag of an overflowing arithmetic node. 431ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Overflow(SDNode *N) { 432ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Simply change the return type of the boolean result. 43323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(1)); 434e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ValueVTs[] = { N->getValueType(0), NVT }; 435ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue Ops[] = { N->getOperand(0), N->getOperand(1) }; 436786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(N->getOpcode(), N->getDebugLoc(), 437786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getVTList(ValueVTs, 2), Ops, 2); 438ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 439ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Modified the sum result - switch anything that used the old sum to use 440ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the new one. 441ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 0), Res); 442ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 443ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return SDValue(Res.getNode(), 1); 444ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 445ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 446ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo) { 447ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 448ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 449ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 450ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 451ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // sign extension of its truncation to the original type. 452ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 453ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 454e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 455e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 456786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 457ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 458ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 459ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::SADDO ? ISD::ADD : ISD::SUB; 460786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 461ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 462ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: sign extend the arithmetic result from 463ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 464786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Ofl = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 465ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands DAG.getValueType(OVT)); 466ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 467786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 468ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 469ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 470ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 471ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 472ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 473ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 474ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 475475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SDIV(SDNode *N) { 476bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Sign extend the input. 477c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 478c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 479786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 480786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 48169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 483475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT(SDNode *N) { 484475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(1)); 485475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(2)); 486786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT, N->getDebugLoc(), 487786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0),LHS,RHS); 48869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 490436fe8498a0a3368d2690290e805213a0f114d0dNadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VSELECT(SDNode *N) { 4916059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem SDValue Mask = N->getOperand(0); 4926059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem EVT OpTy = N->getOperand(1).getValueType(); 4936059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem 4946059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem // Promote all the way up to the canonical SetCC type. 4956059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem Mask = PromoteTargetBoolean(Mask, TLI.getSetCCResultType(OpTy)); 496436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue LHS = GetPromotedInteger(N->getOperand(1)); 497436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue RHS = GetPromotedInteger(N->getOperand(2)); 498436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem return DAG.getNode(ISD::VSELECT, N->getDebugLoc(), 499436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem LHS.getValueType(), Mask, LHS, RHS); 500436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem} 501436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem 502475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT_CC(SDNode *N) { 503475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(2)); 504475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(3)); 505786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(), 506786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0), 507bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 50869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 50969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 510475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SETCC(SDNode *N) { 511e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = TLI.getSetCCResultType(N->getOperand(0).getValueType()); 51217e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem 51317e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 51417e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem 51517e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem // Only use the result of getSetCCResultType if it is legal, 51617e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem // otherwise just use the promoted result type (NVT). 517a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem if (!TLI.isTypeLegal(SVT)) 518a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem SVT = NVT; 51928b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands 520786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 52128b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(SVT.isVector() == N->getOperand(0).getValueType().isVector() && 52228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands "Vector compare must return a vector result!"); 5237e4982287591945c4e42ba8470a978e629789c76Duncan Sands 5247e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Get the SETCC result using the canonical SETCC type. 52528b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands SDValue SetCC = DAG.getNode(N->getOpcode(), dl, SVT, N->getOperand(0), 5267e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 5277e4982287591945c4e42ba8470a978e629789c76Duncan Sands 5286959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(NVT.bitsLE(SVT) && "Integer type overpromoted?"); 529a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem // Convert to the expected type. 530786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, NVT, SetCC); 53169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 53269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 533475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SHL(SDNode *N) { 534786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SHL, N->getDebugLoc(), 535182465c589f95ff165331d06035ec53ff05bf1f5Evan Cheng TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)), 536bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands GetPromotedInteger(N->getOperand(0)), N->getOperand(1)); 53769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 53869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 539475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N) { 540475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 541786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, N->getDebugLoc(), 542786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 5438d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands} 5448d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands 545475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SimpleIntBinOp(SDNode *N) { 546bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input may have strange things in the top bits of the registers, but 547bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // these operations don't care. They may have weird bits going out, but 548bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // that too is okay if they are integer operations. 549475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(0)); 550475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(1)); 551786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 552786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 55369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 55469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 555475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRA(SDNode *N) { 556bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly sign extended. 557c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Res = SExtPromotedInteger(N->getOperand(0)); 558786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRA, N->getDebugLoc(), 559786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res.getValueType(), Res, N->getOperand(1)); 560bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 56169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 562475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRL(SDNode *N) { 563bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly zero extended. 564e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 56523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 566475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = ZExtPromotedInteger(N->getOperand(0)); 567786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, N->getDebugLoc(), NVT, Res, N->getOperand(1)); 56869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 56969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 570475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_TRUNCATE(SDNode *N) { 57123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 572475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res; 5734720611025276f01b158a1522620391332ffdc32Nadav Rotem SDValue InOp = N->getOperand(0); 5744720611025276f01b158a1522620391332ffdc32Nadav Rotem DebugLoc dl = N->getDebugLoc(); 57569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 5764720611025276f01b158a1522620391332ffdc32Nadav Rotem switch (getTypeAction(InOp.getValueType())) { 577c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown type action!"); 57896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 57996e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 5804720611025276f01b158a1522620391332ffdc32Nadav Rotem Res = InOp; 581bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 58296e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 5834720611025276f01b158a1522620391332ffdc32Nadav Rotem Res = GetPromotedInteger(InOp); 584bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 5854720611025276f01b158a1522620391332ffdc32Nadav Rotem case TargetLowering::TypeSplitVector: 5864720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT InVT = InOp.getValueType(); 5874720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(InVT.isVector() && "Cannot split scalar types"); 5884720611025276f01b158a1522620391332ffdc32Nadav Rotem unsigned NumElts = InVT.getVectorNumElements(); 5894720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(NumElts == NVT.getVectorNumElements() && 5904720611025276f01b158a1522620391332ffdc32Nadav Rotem "Dst and Src must have the same number of elements"); 5914720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(isPowerOf2_32(NumElts) && 5924720611025276f01b158a1522620391332ffdc32Nadav Rotem "Promoted vector type must be a power of two"); 5934720611025276f01b158a1522620391332ffdc32Nadav Rotem 5945589a69f0abd39e583786515cf6c9170554dc8deNadav Rotem SDValue EOp1, EOp2; 5955589a69f0abd39e583786515cf6c9170554dc8deNadav Rotem GetSplitVector(InOp, EOp1, EOp2); 5965589a69f0abd39e583786515cf6c9170554dc8deNadav Rotem 5974720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT HalfNVT = EVT::getVectorVT(*DAG.getContext(), NVT.getScalarType(), 5984720611025276f01b158a1522620391332ffdc32Nadav Rotem NumElts/2); 5994720611025276f01b158a1522620391332ffdc32Nadav Rotem EOp1 = DAG.getNode(ISD::TRUNCATE, dl, HalfNVT, EOp1); 6004720611025276f01b158a1522620391332ffdc32Nadav Rotem EOp2 = DAG.getNode(ISD::TRUNCATE, dl, HalfNVT, EOp2); 6014720611025276f01b158a1522620391332ffdc32Nadav Rotem 6024720611025276f01b158a1522620391332ffdc32Nadav Rotem return DAG.getNode(ISD::CONCAT_VECTORS, dl, NVT, EOp1, EOp2); 603bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands } 604bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 605bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate to NVT instead of VT 6064720611025276f01b158a1522620391332ffdc32Nadav Rotem return DAG.getNode(ISD::TRUNCATE, dl, NVT, Res); 60769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 60869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 609ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo) { 610ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 611ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 612ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 613ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 614ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // zero extension of its truncation to the original type. 615c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 616c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 617e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 618e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 619786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 62069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 621ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 622ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::UADDO ? ISD::ADD : ISD::SUB; 623786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 6248ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 625ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: zero extend the arithmetic result from 626ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 6274be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen SDValue Ofl = DAG.getZeroExtendInReg(Res, dl, OVT); 628ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 629786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 6308ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 631ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 632ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 6338ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 634ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 635ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 636ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 6375c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris LattnerSDValue DAGTypeLegalizer::PromoteIntRes_XMULO(SDNode *N, unsigned ResNo) { 6385c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Promote the overflow bit trivially. 6395c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (ResNo == 1) 6405c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return PromoteIntRes_Overflow(N); 641fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 6425c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 6435c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DebugLoc DL = N->getDebugLoc(); 644fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands EVT SmallVT = LHS.getValueType(); 645fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 646b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // To determine if the result overflowed in a larger type, we extend the 647b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // input to the larger type, do the multiply, then check the high bits of 648b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // the result to see if the overflow happened. 6495c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::SMULO) { 6505c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = SExtPromotedInteger(LHS); 6515c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = SExtPromotedInteger(RHS); 6525c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 6535c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = ZExtPromotedInteger(LHS); 6545c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = ZExtPromotedInteger(RHS); 6555c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 6565c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Mul = DAG.getNode(ISD::MUL, DL, LHS.getValueType(), LHS, RHS); 657fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 658b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // Overflow occurred iff the high part of the result does not 659b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // zero/sign-extend the low part. 6605c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Overflow; 6615c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::UMULO) { 662fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Unsigned overflow occurred iff the high part is non-zero. 6635c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Hi = DAG.getNode(ISD::SRL, DL, Mul.getValueType(), Mul, 664fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands DAG.getIntPtrConstant(SmallVT.getSizeInBits())); 6655c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner Overflow = DAG.getSetCC(DL, N->getValueType(1), Hi, 6665c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DAG.getConstant(0, Hi.getValueType()), ISD::SETNE); 6675c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 668fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Signed overflow occurred iff the high part does not sign extend the low. 669fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands SDValue SExt = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, Mul.getValueType(), 670fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Mul, DAG.getValueType(SmallVT)); 671fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Overflow = DAG.getSetCC(DL, N->getValueType(1), SExt, Mul, ISD::SETNE); 6725c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 6735c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 6745c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Use the calculated overflow everywhere. 6755c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner ReplaceValueWith(SDValue(N, 1), Overflow); 6765c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return Mul; 6775c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner} 6785c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 679ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { 680ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Zero extend the input. 681ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 682ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 683786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 684786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 6858ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling} 6868ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 687475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_UNDEF(SDNode *N) { 68853f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng return DAG.getUNDEF(TLI.getTypeToTransformTo(*DAG.getContext(), 68953f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng N->getValueType(0))); 69069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 69169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 692475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_VAARG(SDNode *N) { 693475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = N->getOperand(0); // Get the chain. 694475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getOperand(1); // Get the pointer. 695e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 696786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 69769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 69823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT RegVT = TLI.getRegisterType(*DAG.getContext(), VT); 69923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson unsigned NumRegs = TLI.getNumRegisters(*DAG.getContext(), VT); 700d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // The argument is passed as NumRegs registers of type RegVT. 701d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 702d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands SmallVector<SDValue, 8> Parts(NumRegs); 703d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 0; i < NumRegs; ++i) { 704cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola Parts[i] = DAG.getVAArg(RegVT, dl, Chain, Ptr, N->getOperand(2), 705cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola N->getConstantOperandVal(3)); 706d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands Chain = Parts[i].getValue(1); 707d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 70869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 709d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Handle endianness of the load. 710d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands if (TLI.isBigEndian()) 711d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands std::reverse(Parts.begin(), Parts.end()); 71269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 713d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Assemble the parts in the promoted type. 71423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 715786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[0]); 716d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 1; i < NumRegs; ++i) { 717786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Part = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[i]); 718d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Shift it to the right position and "or" it in. 719786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Part = DAG.getNode(ISD::SHL, dl, NVT, Part, 720d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands DAG.getConstant(i * RegVT.getSizeInBits(), 72192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 722786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res = DAG.getNode(ISD::OR, dl, NVT, Res, Part); 723d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 72469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 725d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Modified the chain result - switch anything that used the old chain to 726bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 727d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands ReplaceValueWith(SDValue(N, 1), Chain); 728d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 729d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands return Res; 73069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 73169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 732bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 733bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands// Integer Operand Promotion 734bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 7357fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 736bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// PromoteIntegerOperand - This method is called when the specified operand of 737bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// the specified node is found to need promotion. At this point, all of the 738bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// result types of the node are known to be legal, but other operands of the 739bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// node may need promotion or expansion as well as the specified one. 740bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sandsbool DAGTypeLegalizer::PromoteIntegerOperand(SDNode *N, unsigned OpNo) { 741d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer operand: "; N->dump(&DAG); dbgs() << "\n"); 742475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 7437fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 744f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 745bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 74669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 747bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 748bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 749bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #ifndef NDEBUG 750d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerOperand Op #" << OpNo << ": "; 751d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 752bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #endif 753c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator's operand!"); 754bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 755bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ANY_EXTEND: Res = PromoteIntOp_ANY_EXTEND(N); break; 756331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman case ISD::ATOMIC_STORE: 757331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman Res = PromoteIntOp_ATOMIC_STORE(cast<AtomicSDNode>(N)); 758331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman break; 759bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntOp_BITCAST(N); break; 760bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BR_CC: Res = PromoteIntOp_BR_CC(N, OpNo); break; 761bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BRCOND: Res = PromoteIntOp_BRCOND(N, OpNo); break; 762bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_PAIR: Res = PromoteIntOp_BUILD_PAIR(N); break; 763bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_VECTOR: Res = PromoteIntOp_BUILD_VECTOR(N); break; 764fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::CONCAT_VECTORS: Res = PromoteIntOp_CONCAT_VECTORS(N); break; 765fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_VECTOR_ELT: Res = PromoteIntOp_EXTRACT_VECTOR_ELT(N); break; 766bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::CONVERT_RNDSAT: 767bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_CONVERT_RNDSAT(N); break; 768bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: 769bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_INSERT_VECTOR_ELT(N, OpNo);break; 770bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::MEMBARRIER: Res = PromoteIntOp_MEMBARRIER(N); break; 771aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang case ISD::SCALAR_TO_VECTOR: 772aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang Res = PromoteIntOp_SCALAR_TO_VECTOR(N); break; 77328b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands case ISD::VSELECT: 774bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT: Res = PromoteIntOp_SELECT(N, OpNo); break; 775bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT_CC: Res = PromoteIntOp_SELECT_CC(N, OpNo); break; 776bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SETCC: Res = PromoteIntOp_SETCC(N, OpNo); break; 777bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SIGN_EXTEND: Res = PromoteIntOp_SIGN_EXTEND(N); break; 778bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SINT_TO_FP: Res = PromoteIntOp_SINT_TO_FP(N); break; 779bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::STORE: Res = PromoteIntOp_STORE(cast<StoreSDNode>(N), 780bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta OpNo); break; 781bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::TRUNCATE: Res = PromoteIntOp_TRUNCATE(N); break; 782927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP16_TO_FP32: 783bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::UINT_TO_FP: Res = PromoteIntOp_UINT_TO_FP(N); break; 784bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ZERO_EXTEND: Res = PromoteIntOp_ZERO_EXTEND(N); break; 78555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 78655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 78755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 78855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 78955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 79055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = PromoteIntOp_Shift(N); break; 791bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta } 7929fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands 793bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result is null, the sub-method took care of registering results etc. 7949fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (!Res.getNode()) return false; 79547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 79647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 79747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 79847d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 799bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return true; 800bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 801bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 802bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands "Invalid operand expansion"); 803bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 804475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 805bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return false; 80669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 80769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 80869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteSetCCOperands - Promote the operands of a comparison. This code is 80969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// shared among BR_CC, SELECT_CC, and SETCC handlers. 810475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::PromoteSetCCOperands(SDValue &NewLHS,SDValue &NewRHS, 81169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands ISD::CondCode CCCode) { 812cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // We have to insert explicit sign or zero extends. Note that we could 813cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // insert sign extends for ALL conditions, but zero extend is cheaper on 814cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // many machines (an AND instead of two shifts), so prefer it. 81569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (CCCode) { 816c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer comparison!"); 81769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETEQ: 81869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETNE: 81969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGE: 82069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGT: 82169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULE: 82269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULT: 82369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // ALL of these operations will work if we either sign or zero extend 82469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the operands (including the unsigned comparisons!). Zero extend is 82569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // usually a simpler/cheaper operation, so prefer it. 826c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = ZExtPromotedInteger(NewLHS); 827c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = ZExtPromotedInteger(NewRHS); 82811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 82969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGE: 83069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGT: 83169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLT: 83269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLE: 833c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = SExtPromotedInteger(NewLHS); 834c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = SExtPromotedInteger(NewRHS); 83511ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 83669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 83769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 83869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 839475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ANY_EXTEND(SDNode *N) { 840475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 841786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), N->getValueType(0), Op); 842bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 84369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 844331120b1a482b782e8dffce63033bb8514ba2a96Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntOp_ATOMIC_STORE(AtomicSDNode *N) { 845331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 846331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman return DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), N->getMemoryVT(), 847331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getChain(), N->getBasePtr(), Op2, N->getMemOperand(), 848331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getOrdering(), N->getSynchScope()); 849331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman} 850331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 851bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntOp_BITCAST(SDNode *N) { 85227759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // This should only occur in unusual situations like bitcasting to an 85327759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // x86_fp80, so just turn it into a store+load 85427759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman return CreateStackStoreLoad(N->getOperand(0), N->getValueType(0)); 85527759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman} 85627759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman 857475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo) { 858bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 2 && "Don't know how to promote this operand!"); 85969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 860475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(2); 861475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(3); 862bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(1))->get()); 86369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 864bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0), CC (#1) and basic block destination (Op#4) are always 865bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal types. 866027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 867027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), LHS, RHS, N->getOperand(4)), 868027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 869bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 870bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 871475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo) { 872bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 1 && "only know how to promote condition"); 873bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 874b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 875825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson EVT SVT = TLI.getSetCCResultType(MVT::Other); 876b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(1), SVT); 877bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 878bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0) and basic block destination (Op#2) are always legal types. 879027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Cond, 880027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 0); 881bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 882bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 883475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_PAIR(SDNode *N) { 884bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Since the result type is legal, the operands must promote to it. 885e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 886c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Lo = ZExtPromotedInteger(N->getOperand(0)); 887475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = GetPromotedInteger(N->getOperand(1)); 888bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Lo.getValueType() == N->getValueType(0) && "Operand over promoted?"); 889786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 890bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 891786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, N->getValueType(0), Hi, 89292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(OVT.getSizeInBits(), TLI.getPointerTy())); 893786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::OR, dl, N->getValueType(0), Lo, Hi); 89469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 89569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 896475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_VECTOR(SDNode *N) { 89769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The vector type is legal but the element type is not. This implies 89869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // that the vector is a power-of-two in length and that the element 89969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // type does not have a strange size (eg: it is not i1). 900e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VecVT = N->getValueType(0); 90169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned NumElts = VecVT.getVectorNumElements(); 90269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(NumElts & 1) && "Legal vector of one illegal element?"); 90369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 904b1303d05a89972195de023fda432cc621375a27cBob Wilson // Promote the inserted value. The type does not need to match the 905b1303d05a89972195de023fda432cc621375a27cBob Wilson // vector element type. Check that any extra bits introduced will be 906b1303d05a89972195de023fda432cc621375a27cBob Wilson // truncated away. 907b1303d05a89972195de023fda432cc621375a27cBob Wilson assert(N->getOperand(0).getValueType().getSizeInBits() >= 908b1303d05a89972195de023fda432cc621375a27cBob Wilson N->getValueType(0).getVectorElementType().getSizeInBits() && 909b1303d05a89972195de023fda432cc621375a27cBob Wilson "Type of inserted value narrower than vector element type!"); 91069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 911b1303d05a89972195de023fda432cc621375a27cBob Wilson SmallVector<SDValue, 16> NewOps; 912c885165e664f3b465403e1b6ce57ba63f57c5f0cBob Wilson for (unsigned i = 0; i < NumElts; ++i) 913b1303d05a89972195de023fda432cc621375a27cBob Wilson NewOps.push_back(GetPromotedInteger(N->getOperand(i))); 91469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 915027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, &NewOps[0], NumElts), 0); 91669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 91769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 91828088d3c049017a131aa7b07201c6e19c0227cefMon P WangSDValue DAGTypeLegalizer::PromoteIntOp_CONVERT_RNDSAT(SDNode *N) { 91928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 92028088d3c049017a131aa7b07201c6e19c0227cefMon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 92128088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 92228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_FS || CvtCode == ISD::CVT_FU) && 92328088d3c049017a131aa7b07201c6e19c0227cefMon P Wang "can only promote integer arguments"); 92428088d3c049017a131aa7b07201c6e19c0227cefMon P Wang SDValue InOp = GetPromotedInteger(N->getOperand(0)); 925c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(N->getValueType(0), N->getDebugLoc(), InOp, 92628088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(1), N->getOperand(2), 92728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 92828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang} 92928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang 930475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, 931475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned OpNo) { 93269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OpNo == 1) { 93369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the inserted value. This is valid because the type does not 93469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // have to match the vector element type. 93569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 93669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Check that any extra bits introduced will be truncated away. 93769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(N->getOperand(1).getValueType().getSizeInBits() >= 93869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getValueType(0).getVectorElementType().getSizeInBits() && 93969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Type of inserted value narrower than vector element type!"); 940027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 94169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetPromotedInteger(N->getOperand(1)), 942027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 943027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 94469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 94569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 94669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OpNo == 2 && "Different operand and result vector types?"); 94769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 94869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the index. 949c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Idx = ZExtPromotedInteger(N->getOperand(2)); 950027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 951027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), Idx), 0); 95269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 95369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 954475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_MEMBARRIER(SDNode *N) { 955475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewOps[6]; 9564be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 95769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewOps[0] = N->getOperand(0); 95869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 1; i < array_lengthof(NewOps); ++i) { 959475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag = GetPromotedInteger(N->getOperand(i)); 960825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson NewOps[i] = DAG.getZeroExtendInReg(Flag, dl, MVT::i1); 96169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 962027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewOps, array_lengthof(NewOps)), 0); 96369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 96469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 965aa9df0b0c3cef33514095bde2eedead986677955Mon P WangSDValue DAGTypeLegalizer::PromoteIntOp_SCALAR_TO_VECTOR(SDNode *N) { 966b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // Integer SCALAR_TO_VECTOR operands are implicitly truncated, so just promote 967b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // the operand in place. 968027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 969027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman GetPromotedInteger(N->getOperand(0))), 0); 970aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang} 971aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang 972475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT(SDNode *N, unsigned OpNo) { 97328b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(OpNo == 0 && "Only know how to promote the condition!"); 97428b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands SDValue Cond = N->getOperand(0); 97528b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands EVT OpTy = N->getOperand(1).getValueType(); 9767e4982287591945c4e42ba8470a978e629789c76Duncan Sands 977b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 97828b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands EVT SVT = TLI.getSetCCResultType(N->getOpcode() == ISD::SELECT ? 97928b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands OpTy.getScalarType() : OpTy); 98028b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands Cond = PromoteTargetBoolean(Cond, SVT); 981bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 98228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands return SDValue(DAG.UpdateNodeOperands(N, Cond, N->getOperand(1), 98328b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands N->getOperand(2)), 0); 984bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 985bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 986475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo) { 987bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 988bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 989475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 990475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 991bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(4))->get()); 992bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 993bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#4) and the possible return values (#2 and #3) have legal types. 994027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2), 995027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(3), N->getOperand(4)), 0); 996bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 997bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 998475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SETCC(SDNode *N, unsigned OpNo) { 999bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 1000bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1001475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 1002475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 1003bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get()); 1004bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1005bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#2) is always legal. 1006027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2)), 0); 1007bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1008bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 100955467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::PromoteIntOp_Shift(SDNode *N) { 1010027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 1011027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(1))), 0); 101255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 101355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 1014475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SIGN_EXTEND(SDNode *N) { 1015475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 1016786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1017786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 1018786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), 1019bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Op, DAG.getValueType(N->getOperand(0).getValueType())); 1020bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1021bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1022c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_SINT_TO_FP(SDNode *N) { 1023027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 1024027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SExtPromotedInteger(N->getOperand(0))), 0); 1025c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 1026c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 1027475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){ 1028bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 1029475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(), Ptr = N->getBasePtr(); 1030bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Alignment = N->getAlignment(); 1031bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands bool isVolatile = N->isVolatile(); 10321e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1033786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1034bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1035475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = GetPromotedInteger(N->getValue()); // Get promoted value. 1036bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1037bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate the value and store the result. 1038ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Val, Ptr, N->getPointerInfo(), 1039ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getMemoryVT(), 10401e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1041bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1042bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1043475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_TRUNCATE(SDNode *N) { 1044475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 1045786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), Op); 1046bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1047bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1048c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_UINT_TO_FP(SDNode *N) { 1049027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 1050027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(0))), 0); 1051c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 1052c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 1053475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ZERO_EXTEND(SDNode *N) { 10544be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1055475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 10564be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 10578e614322498f9b38995a6bf41100ca617180eacbNadav Rotem return DAG.getZeroExtendInReg(Op, dl, 10588e614322498f9b38995a6bf41100ca617180eacbNadav Rotem N->getOperand(0).getValueType().getScalarType()); 1059bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1060bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 106169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 106269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 106369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Expansion 106469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 106569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 106669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// ExpandIntegerResult - This method is called when the specified result of the 1067cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// specified node is found to need expansion. At this point, the node may also 1068cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// have invalid operands or may have other results that need promotion, we just 1069cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// know that (at least) one result needs expansion. 107069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) { 1071d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer result: "; N->dump(&DAG); dbgs() << "\n"); 1072475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 1073475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Lo = Hi = SDValue(); 1074cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1075cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // See if the target wants to custom expand this node. 1076f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 10771607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 1078cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1079cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (N->getOpcode()) { 1080cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: 1081cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#ifndef NDEBUG 1082d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerResult #" << ResNo << ": "; 1083d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 1084cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#endif 1085c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand the result of this operator!"); 108669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10874c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, ResNo, Lo, Hi); break; 108878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break; 108978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break; 109078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break; 109178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1092bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: ExpandRes_BITCAST(N, Lo, Hi); break; 109378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break; 10944a307ecce68f90e0eebf1ded52b947816cdc2304Duncan Sands case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break; 109578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break; 109621c2972f7d24680f6475877a3398b7f8cf515b33Duncan Sands case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break; 109778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 109869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ANY_EXTEND: ExpandIntRes_ANY_EXTEND(N, Lo, Hi); break; 109995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands case ISD::AssertSext: ExpandIntRes_AssertSext(N, Lo, Hi); break; 110069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AssertZext: ExpandIntRes_AssertZext(N, Lo, Hi); break; 110105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::BSWAP: ExpandIntRes_BSWAP(N, Lo, Hi); break; 110205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::Constant: ExpandIntRes_Constant(N, Lo, Hi); break; 110363974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth case ISD::CTLZ_ZERO_UNDEF: 110405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTLZ: ExpandIntRes_CTLZ(N, Lo, Hi); break; 110505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTPOP: ExpandIntRes_CTPOP(N, Lo, Hi); break; 110663974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth case ISD::CTTZ_ZERO_UNDEF: 110705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTTZ: ExpandIntRes_CTTZ(N, Lo, Hi); break; 110869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: ExpandIntRes_FP_TO_SINT(N, Lo, Hi); break; 110969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_UINT: ExpandIntRes_FP_TO_UINT(N, Lo, Hi); break; 111069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::LOAD: ExpandIntRes_LOAD(cast<LoadSDNode>(N), Lo, Hi); break; 111105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::MUL: ExpandIntRes_MUL(N, Lo, Hi); break; 111205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SDIV: ExpandIntRes_SDIV(N, Lo, Hi); break; 111305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND: ExpandIntRes_SIGN_EXTEND(N, Lo, Hi); break; 111405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND_INREG: ExpandIntRes_SIGN_EXTEND_INREG(N, Lo, Hi); break; 111505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SREM: ExpandIntRes_SREM(N, Lo, Hi); break; 111605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::TRUNCATE: ExpandIntRes_TRUNCATE(N, Lo, Hi); break; 111705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UDIV: ExpandIntRes_UDIV(N, Lo, Hi); break; 111805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UREM: ExpandIntRes_UREM(N, Lo, Hi); break; 111905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::ZERO_EXTEND: ExpandIntRes_ZERO_EXTEND(N, Lo, Hi); break; 1120ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman case ISD::ATOMIC_LOAD: ExpandIntRes_ATOMIC_LOAD(N, Lo, Hi); break; 112169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 11228d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_ADD: 11238d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_SUB: 11248d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_AND: 11258d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_OR: 11268d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_XOR: 11278d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_NAND: 11288d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MIN: 11298d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MAX: 11308d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMIN: 11318d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMAX: 11328d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_SWAP: { 11338d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher std::pair<SDValue, SDValue> Tmp = ExpandAtomic(N); 11348d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher SplitInteger(Tmp.first, Lo, Hi); 11358d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher ReplaceValueWith(SDValue(N, 1), Tmp.second); 11368d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher break; 11378d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher } 11388d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher 1139cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::AND: 1140cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::OR: 114105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::XOR: ExpandIntRes_Logical(N, Lo, Hi); break; 114205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1143cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADD: 114405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUB: ExpandIntRes_ADDSUB(N, Lo, Hi); break; 114505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1146cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDC: 114705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBC: ExpandIntRes_ADDSUBC(N, Lo, Hi); break; 114805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1149cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDE: 115005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBE: ExpandIntRes_ADDSUBE(N, Lo, Hi); break; 115105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1152cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SHL: 1153cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SRA: 115405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: ExpandIntRes_Shift(N, Lo, Hi); break; 1155268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1156268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SADDO: 1157268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SSUBO: ExpandIntRes_SADDSUBO(N, Lo, Hi); break; 1158268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::UADDO: 1159268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::USUBO: ExpandIntRes_UADDSUBO(N, Lo, Hi); break; 1160362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher case ISD::UMULO: 1161362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher case ISD::SMULO: ExpandIntRes_XMULO(N, Lo, Hi); break; 1162cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1163d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1164cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If Lo/Hi is null, the sub-method took care of registering results etc. 1165ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Lo.getNode()) 1166475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SetExpandedInteger(SDValue(N, ResNo), Lo, Hi); 1167cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1168cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 116993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher/// Lower an atomic node to the appropriate builtin call. 117093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopherstd::pair <SDValue, SDValue> DAGTypeLegalizer::ExpandAtomic(SDNode *Node) { 117193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher unsigned Opc = Node->getOpcode(); 117293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher MVT VT = cast<AtomicSDNode>(Node)->getMemoryVT().getSimpleVT(); 117393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher RTLIB::Libcall LC; 117493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 117593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (Opc) { 117693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: 117793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher llvm_unreachable("Unhandled atomic intrinsic Expand!"); 117893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_SWAP: 117993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 118093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 118193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_1; break; 118293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_2; break; 118393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_4; break; 118493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_8; break; 118593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 118693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 118793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_CMP_SWAP: 118893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 118993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 119093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1; break; 119193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2; break; 119293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4; break; 119393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8; break; 119493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 119593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 119693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_ADD: 119793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 119893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 119993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_ADD_1; break; 120093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_ADD_2; break; 120193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_ADD_4; break; 120293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_ADD_8; break; 120393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 120493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 120593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_SUB: 120693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 120793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 120893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_SUB_1; break; 120993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_SUB_2; break; 121093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_SUB_4; break; 121193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_SUB_8; break; 121293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 121393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 121493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_AND: 121593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 121693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 121793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_AND_1; break; 121893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_AND_2; break; 121993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_AND_4; break; 122093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_AND_8; break; 122193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 122293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 122393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_OR: 122493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 122593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 122693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_OR_1; break; 122793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_OR_2; break; 122893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_OR_4; break; 122993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_OR_8; break; 123093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 123193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 123293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_XOR: 123393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 123493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 123593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_XOR_1; break; 123693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_XOR_2; break; 123793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_XOR_4; break; 123893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_XOR_8; break; 123993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 124093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 124193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_NAND: 124293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 124393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 124493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_NAND_1; break; 124593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_NAND_2; break; 124693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_NAND_4; break; 124793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_NAND_8; break; 124893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 124993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 125093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 125193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 125293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher return ExpandChainLibCall(LC, Node, false); 125393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher} 125493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 125505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftByConstant - N is a shift by a value that needs to be expanded, 125605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// and the shift amount is a constant 'Amt'. Expand the operation. 125705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandShiftByConstant(SDNode *N, unsigned Amt, 1258475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1259e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DebugLoc DL = N->getDebugLoc(); 126005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the incoming operand to be shifted, so that we have its parts 1261475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 126205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1263cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1264e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = InL.getValueType(); 126505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned VTBits = N->getValueType(0).getSizeInBits(); 126605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 1267e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = N->getOperand(1).getValueType(); 1268cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 126905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SHL) { 127005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 127105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = Hi = DAG.getConstant(0, NVT); 127205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 127305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 1274e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SHL, DL, 1275915eeb488786379250808d47668c43e010efe566Chris Lattner NVT, InL, DAG.getConstant(Amt-NVTBits, ShTy)); 127605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 127705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 127805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = InL; 1279104de6cf7b80ec5e9beb502a069f376810a0a1e3Richard Osborne } else if (Amt == 1 && 1280f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::ADDC, 128154e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToExpandTo(*DAG.getContext(), NVT))) { 128205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Emit this X << 1 as X+X. 1283f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 1284475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { InL, InL }; 1285e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::ADDC, DL, VTList, LoOps, 2); 1286475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { InH, InH, Lo.getValue(1) }; 1287e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::ADDE, DL, VTList, HiOps, 3); 128805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1289e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SHL, DL, NVT, InL, DAG.getConstant(Amt, ShTy)); 1290e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::OR, DL, NVT, 1291e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 129205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1293e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 129405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 129505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 129605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1297cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1298cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 129905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SRL) { 130005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 130105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 130205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 130305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1304e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRL, DL, 1305786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InH, DAG.getConstant(Amt-NVTBits,ShTy)); 130605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 130705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 130805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 130905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 131005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1311e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1312e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 131305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1314e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 131505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1316e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRL, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 131705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 131805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1319cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1320d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 132105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 132205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 1323e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 132405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 132505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1326e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 132705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt-NVTBits, ShTy)); 1328e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 132905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 133005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 133105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 1332e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 133305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1334d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } else { 1335e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1336e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 133705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1338e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 133905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1340e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 1341d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } 1342d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands} 1343d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 134405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftWithKnownAmountBit - Try to determine whether we can simplify 134505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// this shift based on knowledge of the high bit of the shift amount. If we 134605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// can tell this, we know that it is >= 32 or < 32, without knowing the actual 134705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// shift amount. 134805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer:: 1349475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 1350475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt = N->getOperand(1); 135123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1352e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 13535b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned ShBits = ShTy.getScalarType().getSizeInBits(); 13545b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned NVTBits = NVT.getScalarType().getSizeInBits(); 135505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(isPowerOf2_32(NVTBits) && 135605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Expanded integer type size not a power of two!"); 1357786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1358cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 135905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt HighBitMask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 136005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt KnownZero, KnownOne; 136126c8dcc692fb2addd475446cfff24d6a4e958bcaRafael Espindola DAG.ComputeMaskedBits(N->getOperand(1), KnownZero, KnownOne); 1362cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 136305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we don't know anything about the high bits, exit. 136405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (((KnownZero|KnownOne) & HighBitMask) == 0) 136505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1366cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 136705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get the incoming operand to be shifted. 1368475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 136905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1370be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 137105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that any of the high bits of the shift amount are one, then we 137205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 137305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (KnownOne.intersects(HighBitMask)) { 137405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Mask out the high bit, which we know is set. 1375786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Amt = DAG.getNode(ISD::AND, dl, ShTy, Amt, 137605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(~HighBitMask, ShTy)); 137705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 137805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1379c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 138005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: 138105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); // Low part is zero. 1382786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 138305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 138405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 138505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // Hi part is zero. 1386786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 138705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 138805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: 1389786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 139005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1391786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 139205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 139305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 139405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 139505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 139605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that all of the high bits of the shift amount are zero, then we 139705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 139805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if ((KnownZero & HighBitMask) == HighBitMask) { 13993bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer // Calculate 31-x. 31 is used instead of 32 to avoid creating an undefined 14003bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer // shift if x is zero. We can use XOR here because x is known to be smaller 1401a3b2121ccf4f048640b4d79689b0e4a3906143f2Benjamin Kramer // than 32. 14023bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer SDValue Amt2 = DAG.getNode(ISD::XOR, dl, ShTy, Amt, 14033bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer DAG.getConstant(NVTBits-1, ShTy)); 14043bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer 140505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned Op1, Op2; 140605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1407c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 140805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: Op1 = ISD::SHL; Op2 = ISD::SRL; break; 140905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 141005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: Op1 = ISD::SRL; Op2 = ISD::SHL; break; 141105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 141205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 14133bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer // When shifting right the arithmetic for Lo and Hi is swapped. 14143bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer if (N->getOpcode() != ISD::SHL) 14153bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer std::swap(InL, InH); 14163bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer 14173bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer // Use a little trick to get the bits that move from Lo to Hi. First 1418f1820b54e4d08ed78ca76b80b8bebb91cdc798a5Benjamin Kramer // shift by one bit. 1419f1820b54e4d08ed78ca76b80b8bebb91cdc798a5Benjamin Kramer SDValue Sh1 = DAG.getNode(Op2, dl, NVT, InL, DAG.getConstant(1, ShTy)); 1420f1820b54e4d08ed78ca76b80b8bebb91cdc798a5Benjamin Kramer // Then compute the remaining shift with amount-1. 1421f1820b54e4d08ed78ca76b80b8bebb91cdc798a5Benjamin Kramer SDValue Sh2 = DAG.getNode(Op2, dl, NVT, Sh1, Amt2); 14223bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer 14233bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer Lo = DAG.getNode(N->getOpcode(), dl, NVT, InL, Amt); 14243bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer Hi = DAG.getNode(ISD::OR, dl, NVT, DAG.getNode(Op1, dl, NVT, InH, Amt),Sh2); 14253bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer 14263bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer if (N->getOpcode() != ISD::SHL) 14273bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer std::swap(Hi, Lo); 142805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 142905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 143005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 143105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 143205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 143305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 14346fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// ExpandShiftWithUnknownAmountBit - Fully general expansion of integer shift 14356fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// of any size. 14366fb2168aaed06e4685d064b6f63dc4c668b42728Evan Chengbool DAGTypeLegalizer:: 14376fb2168aaed06e4685d064b6f63dc4c668b42728Evan ChengExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 14386fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Amt = N->getOperand(1); 143923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1440e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 14416fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng unsigned NVTBits = NVT.getSizeInBits(); 14426fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng assert(isPowerOf2_32(NVTBits) && 14436fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng "Expanded integer type size not a power of two!"); 14446fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DebugLoc dl = N->getDebugLoc(); 14456fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14466fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // Get the incoming operand to be shifted. 14476fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue InL, InH; 14486fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng GetExpandedInteger(N->getOperand(0), InL, InH); 14496fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14506fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue NVBitsNode = DAG.getConstant(NVTBits, ShTy); 14519993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtExcess = DAG.getNode(ISD::SUB, dl, ShTy, Amt, NVBitsNode); 14529993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtLack = DAG.getNode(ISD::SUB, dl, ShTy, NVBitsNode, Amt); 14539993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue isShort = DAG.getSetCC(dl, TLI.getSetCCResultType(ShTy), 14549993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Amt, NVBitsNode, ISD::SETULT); 14556fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14569993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue LoS, HiS, LoL, HiL; 14576fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng switch (N->getOpcode()) { 1458c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 14596fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SHL: 14609993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14619993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); 14629993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::OR, dl, NVT, 14636fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt), 146436236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 146536236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14669993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, AmtLack)); 14679993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14689993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14699993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getConstant(0, NVT); // Lo part is zero. 14709993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SHL, dl, NVT, InL, AmtExcess); // Hi from Lo part. 14716fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14729993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14739993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14746fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14756fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRL: 14769993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14779993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); 14789993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 14799993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 148036236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 148136236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14829993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 14839993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14849993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14859993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getConstant(0, NVT); // Hi part is zero. 14869993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRL, dl, NVT, InH, AmtExcess); // Lo from Hi part. 14879993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14889993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14899993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14906fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14916fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRA: 14929993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14939993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); 14949993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 14956fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 149636236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 149736236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14989993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 14999993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 15009993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 15019993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign of Hi part. 15029993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getConstant(NVTBits-1, ShTy)); 15039993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRA, dl, NVT, InH, AmtExcess); // Lo from Hi part. 15046fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 15059993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 15069993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 15076fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 15086fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 15096fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng} 15106fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 151105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUB(SDNode *N, 1512475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1513786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 151405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1515475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 151605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 151705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 151829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 1519e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHSL.getValueType(); 1520475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1521475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 152205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 152329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // Do not generate ADDC/ADDE or SUBC/SUBE if the target does not support 152429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // them. TODO: Teach operation legalization how to expand unsupported 152529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // ADDC/ADDE/SUBC/SUBE. The problem is that these operations generate 1526f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner // a carry of type MVT::Glue, but there doesn't seem to be any way to 152729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // generate a value of this type in the expanded code sequence. 152829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands bool hasCarry = 1529f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(N->getOpcode() == ISD::ADD ? 1530f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman ISD::ADDC : ISD::SUBC, 1531bc7a902713c4e3f13a93c383e647d2a18712f447Dan Gohman TLI.getTypeToExpandTo(*DAG.getContext(), NVT)); 153229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 153329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (hasCarry) { 1534f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 153529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1536786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 153729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1538786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 153929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1540786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 154129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1542786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 154329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 1544c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson return; 15455078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner } 1546c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson 15475078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner if (N->getOpcode() == ISD::ADD) { 15485078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::ADD, dl, NVT, LoOps, 2); 15495078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, HiOps, 2); 15505078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[0], 15515078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 15525078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry1 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp1, 15535078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 15545078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 15555078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[1], 15565078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 15575078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry2 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp2, 15585078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), Carry1); 15595078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, Carry2); 156005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 15615078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::SUB, dl, NVT, LoOps, 2); 15625078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, HiOps, 2); 15635078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp = 15645078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getSetCC(dl, TLI.getSetCCResultType(LoOps[0].getValueType()), 15655078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner LoOps[0], LoOps[1], ISD::SETULT); 15665078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Borrow = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, 15675078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 15685078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 15695078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, Hi, Borrow); 157005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 157105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 157205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 157305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBC(SDNode *N, 1574475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 157505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1576475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1577786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 157805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 157905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1580f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1581475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1582475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 158305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 158405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::ADDC) { 1585786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 158605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1587786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 158805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1589786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 159005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1591786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 159205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 159305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1594874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1595874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1596475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 159705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 159805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 159905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBE(SDNode *N, 1600475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 160105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1602475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1603786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 160405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 160505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1606f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1607475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, N->getOperand(2) }; 1608475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 160905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1610786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, VTList, LoOps, 3); 161105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1612786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, VTList, HiOps, 3); 161305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1614874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1615874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1616475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 161705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 1618fcd75e5efb482f35cfc22fd4b64e047930130fd6Eli Friedman 16194c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MERGE_VALUES(SDNode *N, unsigned ResNo, 1620fcd75e5efb482f35cfc22fd4b64e047930130fd6Eli Friedman SDValue &Lo, SDValue &Hi) { 16214c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands SDValue Res = DisintegrateMERGE_VALUES(N, ResNo); 162262bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman SplitInteger(Res, Lo, Hi); 162362bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman} 162405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 162505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ANY_EXTEND(SDNode *N, 1626475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 162723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1628786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1629475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 163005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 163105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The low part is any extension of the input (which degenerates to a copy). 1632786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ANY_EXTEND, dl, NVT, Op); 1633e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); // The high part is undefined. 163405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 163505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 163605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 163796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 163896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 163905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1640475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 164105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 164205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 164305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 164405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 164505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 164605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 164705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 164895db39a9de48f69f4d764335b492b83a698c7854Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertSext(SDNode *N, 1649475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1650786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 165195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1652e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1653e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 165495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned NVTBits = NVT.getSizeInBits(); 165595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned EVTBits = EVT.getSizeInBits(); 165695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 165795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands if (NVTBits < EVTBits) { 1658786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertSext, dl, NVT, Hi, 16594ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 16604ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng EVTBits - NVTBits))); 166195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } else { 1662786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertSext, dl, NVT, Lo, DAG.getValueType(EVT)); 166395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // The high part replicates the sign bit of Lo, make it explicit. 1664786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 166592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVTBits-1, TLI.getPointerTy())); 166695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } 166795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 166895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 166905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertZext(SDNode *N, 1670475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1671786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 167205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1673e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1674e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 167505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 167605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned EVTBits = EVT.getSizeInBits(); 167705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 167805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (NVTBits < EVTBits) { 1679786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertZext, dl, NVT, Hi, 1680285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 1681285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng EVTBits - NVTBits))); 168205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1683786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertZext, dl, NVT, Lo, DAG.getValueType(EVT)); 168405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part must be zero, make it explicit. 168505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 168605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 168705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 168805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 168905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_BSWAP(SDNode *N, 1690475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1691786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 169205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Hi, Lo); // Note swapped operands. 1693786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::BSWAP, dl, Lo.getValueType(), Lo); 1694786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::BSWAP, dl, Hi.getValueType(), Hi); 169505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 169605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 169705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Constant(SDNode *N, 1698475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 169923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 170005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NBitWidth = NVT.getSizeInBits(); 170105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const APInt &Cst = cast<ConstantSDNode>(N)->getAPIntValue(); 170240f8f6264d5af2c38e797e0dc59827cd231e8ff7Jay Foad Lo = DAG.getConstant(Cst.trunc(NBitWidth), NVT); 170305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(Cst.lshr(NBitWidth).trunc(NBitWidth), NVT); 170405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 170505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 170605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTLZ(SDNode *N, 1707475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1708786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 170905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctlz (HiLo) -> Hi != 0 ? ctlz(Hi) : (ctlz(Lo)+32) 171005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1711e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 171205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1713786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Hi, 1714ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 171505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 171663974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth SDValue LoLZ = DAG.getNode(N->getOpcode(), dl, NVT, Lo); 171763974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth SDValue HiLZ = DAG.getNode(ISD::CTLZ_ZERO_UNDEF, dl, NVT, Hi); 171805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1719786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, HiNotZero, HiLZ, 1720786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, LoLZ, 172105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 172205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 172305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 172405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 172505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTPOP(SDNode *N, 1726475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1727786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 172805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctpop(HiLo) -> ctpop(Hi)+ctpop(Lo) 172905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1730e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1731b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, DAG.getNode(ISD::CTPOP, dl, NVT, Lo), 1732786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::CTPOP, dl, NVT, Hi)); 173305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 173405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 173505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 173605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTTZ(SDNode *N, 1737475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1738786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 173905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // cttz (HiLo) -> Lo != 0 ? cttz(Lo) : (cttz(Hi)+32) 174005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1741e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 174205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1743786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, 1744ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 174505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 174663974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth SDValue LoLZ = DAG.getNode(ISD::CTTZ_ZERO_UNDEF, dl, NVT, Lo); 174763974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth SDValue HiLZ = DAG.getNode(N->getOpcode(), dl, NVT, Hi); 174805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1749786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, LoNotZero, LoLZ, 1750786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, HiLZ, 175105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 175205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 175305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 175405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1755475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo, 1756475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1757c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1758e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1759475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1760b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT); 1761be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!"); 1762c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, true/*irrelevant*/, dl), Lo, Hi); 1763ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1764ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 1765475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo, 1766475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1767c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1768e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1769475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1770b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Op.getValueType(), VT); 1771be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 1772c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, false/*irrelevant*/, dl), Lo, Hi); 1773ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1774ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 177569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N, 1776475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1777ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalLoad(N)) { 1778ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands ExpandRes_NormalLoad(N, Lo, Hi); 177978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands return; 178078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands } 178178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 178278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 178378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1784e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 178523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1786475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 1787475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 1788cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::LoadExtType ExtType = N->getExtensionType(); 1789cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 1790cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 17911e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1792d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper bool isInvariant = N->isInvariant(); 1793786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1794cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 179578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 1796cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 179778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 17988a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 1799cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1800a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 18011e559443a17d1b335f697551c6263ba60d5dd827David Greene MemVT, isVolatile, isNonTemporal, Alignment); 1802cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1803cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Remember the chain. 1804cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Ch = Lo.getValue(1); 1805cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1806cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExtType == ISD::SEXTLOAD) { 1807cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is obtained by SRA'ing all but one of the bits of the 1808cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // lo part. 180983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 1810786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 181192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 1812cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (ExtType == ISD::ZEXTLOAD) { 1813cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is just a zero. 1814cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = DAG.getConstant(0, NVT); 1815cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1816cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(ExtType == ISD::EXTLOAD && "Unknown extload!"); 1817cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is undefined. 1818e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); 1819cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1820cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 1821cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 1822ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getLoad(NVT, dl, Ch, Ptr, N->getPointerInfo(), 1823d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper isVolatile, isNonTemporal, isInvariant, Alignment); 1824cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1825cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 182683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 182723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 1828cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1829cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 183083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1831786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 18320bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1833a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, 1834ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), NEVT, 18351e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 18361e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1837cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1838cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1839cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1840825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1841cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1842cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1843cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned loads at 1844cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 18458a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 18464e918b2c8ca81edd63f6708e08835b2c14648615Dan Gohman unsigned EBytes = MemVT.getStoreSize(); 184783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1848cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 1849cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1850cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load both the high bits and maybe some of the low bits. 1851a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 18528a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT::getIntegerVT(*DAG.getContext(), 18538a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman MemVT.getSizeInBits() - ExcessBits), 18541e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1855cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1856cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 1857786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 18580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1859cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load the rest of the low bits. 1860a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr, 1861ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 186223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 18631e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 18641e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1865cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1866cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1867cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1868825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1869cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1870cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 187183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 1872cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer low bits from the bottom of Hi to the top of Lo. 1873786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, Lo, 1874786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, Hi, 1875cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 187692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 1877cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Move high bits to the right position in Hi. 18787fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ExtType == ISD::SEXTLOAD ? ISD::SRA : ISD::SRL, dl, 1879786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, Hi, 188083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 188192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 1882cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1883cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1884cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1885cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Legalized the chain result - switch anything that used the old chain to 1886cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // use the new one. 1887475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Ch); 1888cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1889cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 189069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Logical(SDNode *N, 1891475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1892786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1893475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 189469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 189569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 1896786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LL, RL); 1897786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LH, RH); 1898cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1899cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 190005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N, 1901475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1902e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 190323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1904c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 190569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1906f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, NVT); 1907f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, NVT); 1908f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, NVT); 1909f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, NVT); 1910cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 1911475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 191269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 191369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 191483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned OuterBitSize = VT.getSizeInBits(); 1915e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands unsigned InnerBitSize = NVT.getSizeInBits(); 1916cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned LHSSB = DAG.ComputeNumSignBits(N->getOperand(0)); 1917cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned RHSSB = DAG.ComputeNumSignBits(N->getOperand(1)); 191869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1919e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 1920e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (DAG.MaskedValueIsZero(N->getOperand(0), HighMask) && 1921e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands DAG.MaskedValueIsZero(N->getOperand(1), HighMask)) { 1922cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The inputs are both zero-extended. 1923cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1924cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a umul_lohi. 1925786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::UMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1926ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1927cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1928cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1929cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU) { 1930cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhu+mul. 1931786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1932786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1933cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1934cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1935cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1936e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 1937cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The input values are both sign-extended. 1938cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasSMUL_LOHI) { 1939cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a smul_lohi. 1940786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1941ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1942cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1943cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1944cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHS) { 1945cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhs+mul. 1946786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1947786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHS, dl, NVT, LL, RL); 1948cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1949cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1950cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1951cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1952cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Lo,Hi = umul LHS, RHS. 1953786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, dl, 1954cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getVTList(NVT, NVT), LL, RL); 1955cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Lo = UMulLOHI; 1956cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = UMulLOHI.getValue(1); 1957786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1958786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1959786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1960786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1961cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1962cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1963e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (HasMULHU) { 1964786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1965786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1966786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1967786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1968786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1969786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1970e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands return; 1971e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands } 1972cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 197341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1974cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If nothing else, we can make a libcall. 19755ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1976825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 197715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::MUL_I16; 1978825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 19795ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I32; 1980825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 1981e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands LC = RTLIB::MUL_I64; 1982825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 19835ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I128; 19845ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"); 1985e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands 1986475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1987c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true/*irrelevant*/, dl), Lo, Hi); 198841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1989cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1990268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_SADDSUBO(SDNode *Node, 1991268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 1992268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = Node->getOperand(0); 1993268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = Node->getOperand(1); 1994268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = Node->getDebugLoc(); 1995268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1996268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 1997268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 1998268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(Node->getOpcode() == ISD::SADDO ? 1999268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 2000268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 2001268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 2002268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2003268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Compute the overflow. 2004268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 2005268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // LHSSign -> LHS >= 0 2006268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // RHSSign -> RHS >= 0 2007268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // SumSign -> Sum >= 0 2008268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 2009268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Add: 2010268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign == RHSSign) && (LHSSign != SumSign) 2011268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Sub: 2012268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign != RHSSign) && (LHSSign != SumSign) 2013268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 2014268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman EVT OType = Node->getValueType(1); 2015268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Zero = DAG.getConstant(0, LHS.getValueType()); 2016268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2017268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHSSign = DAG.getSetCC(dl, OType, LHS, Zero, ISD::SETGE); 2018268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHSSign = DAG.getSetCC(dl, OType, RHS, Zero, ISD::SETGE); 2019268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SignsMatch = DAG.getSetCC(dl, OType, LHSSign, RHSSign, 2020268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman Node->getOpcode() == ISD::SADDO ? 2021268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETEQ : ISD::SETNE); 2022268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2023268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSign = DAG.getSetCC(dl, OType, Sum, Zero, ISD::SETGE); 2024268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSignNE = DAG.getSetCC(dl, OType, LHSSign, SumSign, ISD::SETNE); 2025268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2026268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Cmp = DAG.getNode(ISD::AND, dl, OType, SignsMatch, SumSignNE); 2027268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2028268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2029268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(Node, 1), Cmp); 2030268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2031268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 203269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N, 2033475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2034e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2035c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 20365ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 20375ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2038825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2039a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SDIV_I16; 2040825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 20415ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I32; 2042825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 20435ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I64; 2044825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 20455ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I128; 20465ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!"); 20475ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 2048475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2049c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 2050ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 2051ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 205269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N, 2053475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2054e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2055c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 205669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 205769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // If we can emit an efficient shift operation, do so now. Check to see if 2058cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the RHS is a constant. 2059cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1))) 2060f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman return ExpandShiftByConstant(N, CN->getZExtValue(), Lo, Hi); 2061cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2062cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If we can determine that the high bit of the shift is zero or one, even if 2063cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the low bits are variable, emit this shift in an optimized form. 2064cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExpandShiftWithKnownAmountBit(N, Lo, Hi)) 2065cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 206669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2067cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this target supports shift_PARTS, use it. First, map to the _PARTS opc. 2068cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned PartsOpc; 206941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 2070cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SHL_PARTS; 207141edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 2072cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRL_PARTS; 207341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 2074cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 2075cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRA_PARTS; 2076cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 207769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2078cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Next check to see if the target supports this SHL_PARTS operation or if it 2079cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // will custom expand it. 208023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2081cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::LegalizeAction Action = TLI.getOperationAction(PartsOpc, NVT); 2082cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 2083cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Action == TargetLowering::Custom) { 2084cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Expand the subcomponents. 2085475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 208669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 208769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2088475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, N->getOperand(1) }; 2089e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = LHSL.getValueType(); 2090fc1665793e62eb4f26d24b8a19eecf59cd872e2aDan Gohman Lo = DAG.getNode(PartsOpc, dl, DAG.getVTList(VT, VT), Ops, 3); 2091cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = Lo.getValue(1); 2092cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2093cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 209441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2095cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Otherwise, emit a libcall. 2096dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 209741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands bool isSigned; 209841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 209941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; /*sign irrelevant*/ 2100825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 210115c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SHL_I16; 2102825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2103dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I32; 2104825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2105dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I64; 2106825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2107dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I128; 210841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 210941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; 2110825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 211115c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRL_I16; 2112825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2113dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I32; 2114825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2115dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I64; 2116825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2117dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I128; 211841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 211941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 212041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = true; 2121825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 212215c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRA_I16; 2123825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2124dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I32; 2125825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2126dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I64; 2127825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2128dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I128; 212941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } 21308c899ee031481dbece5f111379a274c848cb5902Duncan Sands 21316fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (LC != RTLIB::UNKNOWN_LIBCALL && TLI.getLibcallName(LC)) { 21326fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 21336fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SplitInteger(MakeLibCall(LC, VT, Ops, 2, isSigned, dl), Lo, Hi); 21346fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return; 21356fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 213641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 21376fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (!ExpandShiftWithUnknownAmountBit(N, Lo, Hi)) 2138c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unsupported shift!"); 213941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 2140cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 214105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SIGN_EXTEND(SDNode *N, 2142475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 214323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2144786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2145475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 214605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2147b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is sign extension of the input (degenerates to a copy). 2148786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND, dl, NVT, N->getOperand(0)); 214905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part is obtained by SRA'ing all but one of the bits of low part. 215005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned LoSize = NVT.getSizeInBits(); 2151786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 215292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 215305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 215405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 215505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 215696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 215796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 215805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2159475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 216005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 216105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 216205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 216305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 216405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 216505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2166786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 2167285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 2168285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng ExcessBits))); 216905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 217005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 217105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 217205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer:: 2173475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi) { 2174786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 217569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 2176e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 2177d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 217805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (EVT.bitsLE(Lo.getValueType())) { 217905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the low part if needed. 2180786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Lo.getValueType(), Lo, 218105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(1)); 2182d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 218305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part gets the sign extension from the lo-part. This handles 218405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // things like sextinreg V:i64 from i8. 2185786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, Hi.getValueType(), Lo, 218605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Hi.getValueType().getSizeInBits()-1, 218792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 218805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 218905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. Leave the low part alone, 219005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the high part. 219105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 219205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands EVT.getSizeInBits() - Lo.getValueType().getSizeInBits(); 2193786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 219454e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 219554e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits))); 219605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 219705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2198d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 219905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N, 2200475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2201e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2202c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 220305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 220405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2205825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2206a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SREM_I16; 2207825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 220805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I32; 2209825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 221005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I64; 2211825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 221205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I128; 221305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!"); 221405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2215475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2216c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 2217d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2218d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 221905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N, 2220475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 222123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2222786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2223786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::TRUNCATE, dl, NVT, N->getOperand(0)); 2224786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, 2225786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getOperand(0).getValueType(), N->getOperand(0), 222692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVT.getSizeInBits(), TLI.getPointerTy())); 2227786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::TRUNCATE, dl, NVT, Hi); 2228d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2229d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2230268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_UADDSUBO(SDNode *N, 2231268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 2232268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = N->getOperand(0); 2233268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = N->getOperand(1); 2234268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = N->getDebugLoc(); 2235268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2236268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 2237268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 2238268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(N->getOpcode() == ISD::UADDO ? 2239268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 2240268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 2241268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 2242268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2243268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Calculate the overflow: addition overflows iff a + b < a, and subtraction 2244268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // overflows iff a - b > a. 2245268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Sum, LHS, 2246268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman N->getOpcode () == ISD::UADDO ? 2247268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETULT : ISD::SETUGT); 2248268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2249268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2250268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(N, 1), Ofl); 2251268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2252268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2253362fee90b9a1d64ac091755466caf6a94ade22ebEric Christophervoid DAGTypeLegalizer::ExpandIntRes_XMULO(SDNode *N, 2254362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue &Lo, SDValue &Hi) { 2255362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT VT = N->getValueType(0); 2256db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *RetTy = VT.getTypeForEVT(*DAG.getContext()); 2257362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT PtrVT = TLI.getPointerTy(); 2258db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *PtrTy = PtrVT.getTypeForEVT(*DAG.getContext()); 2259362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DebugLoc dl = N->getDebugLoc(); 2260362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2261a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // A divide for UMULO should be faster than a function call. 2262a3071455e540530ecb644a2e59098129f70ce705Eric Christopher if (N->getOpcode() == ISD::UMULO) { 2263a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 2264a3071455e540530ecb644a2e59098129f70ce705Eric Christopher DebugLoc DL = N->getDebugLoc(); 2265a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2266a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue MUL = DAG.getNode(ISD::MUL, DL, LHS.getValueType(), LHS, RHS); 2267a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SplitInteger(MUL, Lo, Hi); 2268a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2269a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // A divide for UMULO will be faster than a function call. Select to 2270a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // make sure we aren't using 0. 2271a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue isZero = DAG.getSetCC(dl, TLI.getSetCCResultType(VT), 227296cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling RHS, DAG.getConstant(0, VT), ISD::SETNE); 2273a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue NotZero = DAG.getNode(ISD::SELECT, dl, VT, isZero, 227496cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling DAG.getConstant(1, VT), RHS); 2275a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue DIV = DAG.getNode(ISD::UDIV, DL, LHS.getValueType(), MUL, NotZero); 2276a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue Overflow; 2277a3071455e540530ecb644a2e59098129f70ce705Eric Christopher Overflow = DAG.getSetCC(DL, N->getValueType(1), DIV, LHS, ISD::SETNE); 2278a3071455e540530ecb644a2e59098129f70ce705Eric Christopher ReplaceValueWith(SDValue(N, 1), Overflow); 2279a3071455e540530ecb644a2e59098129f70ce705Eric Christopher return; 2280a3071455e540530ecb644a2e59098129f70ce705Eric Christopher } 2281a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 22825e687ac6158bc28f1831699d7dbfa39d3120b892Eric Christopher // Replace this with a libcall that will check overflow. 2283362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2284362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher if (VT == MVT::i32) 2285362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I32; 2286362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher else if (VT == MVT::i64) 2287362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I64; 2288362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher else if (VT == MVT::i128) 2289362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I128; 2290362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported XMULO!"); 2291362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2292362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Temp = DAG.CreateStackTemporary(PtrVT); 2293362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Temporary for the overflow value, default it to zero. 2294362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Chain = DAG.getStore(DAG.getEntryNode(), dl, 229596cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling DAG.getConstant(0, PtrVT), Temp, 229696cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling MachinePointerInfo(), false, false, 0); 2297362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2298362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TargetLowering::ArgListTy Args; 2299362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TargetLowering::ArgListEntry Entry; 2300362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { 2301362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT ArgVT = N->getOperand(i).getValueType(); 2302db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *ArgTy = ArgVT.getTypeForEVT(*DAG.getContext()); 2303362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Node = N->getOperand(i); 2304362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Ty = ArgTy; 2305362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isSExt = true; 2306362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isZExt = false; 2307362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Args.push_back(Entry); 2308362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher } 2309362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2310362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Also pass the address of the overflow check. 2311362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Node = Temp; 2312362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Ty = PtrTy->getPointerTo(); 2313362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isSExt = true; 2314362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isZExt = false; 2315362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Args.push_back(Entry); 2316362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2317362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Func = DAG.getExternalSymbol(TLI.getLibcallName(LC), PtrVT); 2318d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski TargetLowering:: 2319d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski CallLoweringInfo CLI(Chain, RetTy, true, false, false, false, 232096cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling 0, TLI.getLibcallCallingConv(LC), 232196cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling /*isTailCall=*/false, 232296cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling /*doesNotReturn=*/false, /*isReturnValueUsed=*/true, 232396cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling Func, Args, DAG, dl); 2324d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski std::pair<SDValue, SDValue> CallInfo = TLI.LowerCallTo(CLI); 2325362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2326362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SplitInteger(CallInfo.first, Lo, Hi); 2327362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Temp2 = DAG.getLoad(PtrVT, dl, CallInfo.second, Temp, 232896cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling MachinePointerInfo(), false, false, false, 0); 2329362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Temp2, 2330362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DAG.getConstant(0, PtrVT), 2331362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher ISD::SETNE); 2332362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Use the overflow from the libcall everywhere. 2333362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher ReplaceValueWith(SDValue(N, 1), Ofl); 2334362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher} 2335362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 233605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N, 2337475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2338e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2339c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2340d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 234105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2342825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2343a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UDIV_I16; 2344825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 234505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I32; 2346825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 234705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I64; 2348825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 234905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I128; 235005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!"); 2351d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2352475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2353c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2354d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2355cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 235605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N, 2357475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2358e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2359c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 236069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 236105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2362825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2363a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UREM_I16; 2364825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 236505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I32; 2366825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 236705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I64; 2368825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 236905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I128; 237005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!"); 2371cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2372475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2373c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2374cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2375cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 237605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N, 2377475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 237823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2379786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2380475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 238105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2382b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is zero extension of the input (degenerates to a copy). 2383786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N->getOperand(0)); 238405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // The high part is just a zero. 238505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 238605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 238705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 238896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 238996e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 239005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2391475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 239205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 239305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 239405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 239505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 239605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 239705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2398adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng Hi = DAG.getZeroExtendInReg(Hi, dl, 239954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher EVT::getIntegerVT(*DAG.getContext(), 240054e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits)); 24019e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman } 2402cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2403cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2404ba567d670d32e102a70b106fbfe284835085cb3fEli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_ATOMIC_LOAD(SDNode *N, 2405ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue &Lo, SDValue &Hi) { 2406ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman DebugLoc dl = N->getDebugLoc(); 2407ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman EVT VT = cast<AtomicSDNode>(N)->getMemoryVT(); 2408ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Zero = DAG.getConstant(0, VT); 2409ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Swap = DAG.getAtomic(ISD::ATOMIC_CMP_SWAP, dl, VT, 2410ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(0), 2411ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(1), Zero, Zero, 2412ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemOperand(), 2413ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getOrdering(), 2414ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getSynchScope()); 2415ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman ReplaceValueWith(SDValue(N, 0), Swap.getValue(0)); 2416ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman ReplaceValueWith(SDValue(N, 1), Swap.getValue(1)); 2417ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman} 2418cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2419cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 242069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Operand Expansion 2421cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2422cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 242305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandIntegerOperand - This method is called when the specified operand of 242405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// the specified node is found to need expansion. At this point, all of the 242505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// result types of the node are known to be legal, but other operands of the 242605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// node may need promotion or expansion as well as the specified one. 242705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer::ExpandIntegerOperand(SDNode *N, unsigned OpNo) { 2428d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer operand: "; N->dump(&DAG); dbgs() << "\n"); 2429475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 2430051bb7b07504be9f848f7cce802e62ed24980bc5Duncan Sands 2431f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 2432bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 243311ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands 2434bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 2435bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 243605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #ifndef NDEBUG 2437d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerOperand Op #" << OpNo << ": "; 2438d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 243905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #endif 2440c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand this operator's operand!"); 2441bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta 2442bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = ExpandOp_BITCAST(N); break; 244392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BR_CC: Res = ExpandIntOp_BR_CC(N); break; 244492abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break; 2445bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break; 2446bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: Res = ExpandOp_INSERT_VECTOR_ELT(N); break; 2447bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SCALAR_TO_VECTOR: Res = ExpandOp_SCALAR_TO_VECTOR(N); break; 244892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SELECT_CC: Res = ExpandIntOp_SELECT_CC(N); break; 244992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SETCC: Res = ExpandIntOp_SETCC(N); break; 245092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SINT_TO_FP: Res = ExpandIntOp_SINT_TO_FP(N); break; 245192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::STORE: Res = ExpandIntOp_STORE(cast<StoreSDNode>(N), OpNo); break; 245292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::TRUNCATE: Res = ExpandIntOp_TRUNCATE(N); break; 245392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::UINT_TO_FP: Res = ExpandIntOp_UINT_TO_FP(N); break; 245455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 245555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 245655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 245755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 245855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 24591c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::ROTR: Res = ExpandIntOp_Shift(N); break; 24601c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::RETURNADDR: 24611c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::FRAMEADDR: Res = ExpandIntOp_RETURNADDR(N); break; 2462ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2463ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman case ISD::ATOMIC_STORE: Res = ExpandIntOp_ATOMIC_STORE(N); break; 246405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 246569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 246605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If the result is null, the sub-method took care of registering results etc. 2467ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Res.getNode()) return false; 246847d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 246947d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 247047d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 247147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 247205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 2473cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 247405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 247505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Invalid operand expansion"); 247605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2477475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 247805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 2479cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2480cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 248111ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// IntegerExpandSetCCOperands - Expand the operands of a comparison. This code 248211ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// is shared among BR_CC, SELECT_CC, and SETCC handlers. 2483475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::IntegerExpandSetCCOperands(SDValue &NewLHS, 2484475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &NewRHS, 2485c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen ISD::CondCode &CCCode, 2486c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl) { 2487475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 248869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewLHS, LHSLo, LHSHi); 248969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewRHS, RHSLo, RHSHi); 249041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2491cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (CCCode == ISD::SETEQ || CCCode == ISD::SETNE) { 249211ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (RHSLo == RHSHi) { 249311ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) { 2494cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (RHSCST->isAllOnesValue()) { 2495cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Equality comparison to -1. 24967fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands NewLHS = DAG.getNode(ISD::AND, dl, 2497786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHSLo.getValueType(), LHSLo, LHSHi); 2498cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSLo; 2499cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2500cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 250111ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 250211ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 250369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2504786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSLo, RHSLo); 2505786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewRHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSHi, RHSHi); 2506786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::OR, dl, NewLHS.getValueType(), NewLHS, NewRHS); 2507cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 2508cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2509cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 251069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2511cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this is a comparison of the sign bit, just look at the top part. 2512cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // X > -1, x < 0 2513cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(NewRHS)) 2514002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((CCCode == ISD::SETLT && CST->isNullValue()) || // X < 0 2515cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETGT && CST->isAllOnesValue())) { // X > -1 2516cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = LHSHi; 2517cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSHi; 2518cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2519cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 252069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2521cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // FIXME: This generated code sucks. 2522cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::CondCode LowCC; 2523cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (CCCode) { 2524c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer setcc!"); 2525cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLT: 2526cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULT: LowCC = ISD::SETULT; break; 2527cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGT: 2528cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2529cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLE: 2530cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULE: LowCC = ISD::SETULE; break; 2531cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGE: 2532cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2533cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 253469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2535cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2536cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2537cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 253869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2539cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // NOTE: on targets without efficient SELECT of bools, we can always use 2540cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 254178d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, true, NULL); 2542475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2; 25435480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo.getValueType()), 2544ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSLo, RHSLo, LowCC, false, DagCombineInfo, dl); 2545ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 2546786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()), 25475480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSLo, RHSLo, LowCC); 25485480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2549ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, CCCode, false, DagCombineInfo, dl); 2550ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 2551786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp2 = DAG.getNode(ISD::SETCC, dl, 2552786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(LHSHi.getValueType()), 25535480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, DAG.getCondCode(CCCode)); 255469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2555ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 2556ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 2557002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 2558002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 2559cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 2560cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 2561002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 2562cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 2563cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 2564cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // low part is known false, returns high part. 2565cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LE / GE, if high part is known false, ignore the low part. 2566cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LT / GT, if high part is known true, ignore the low part. 2567cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = Tmp2; 2568475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2569cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2570cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 257169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 25725480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands NewLHS = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2573fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel LHSHi, RHSHi, ISD::SETEQ, false, 2574ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen DagCombineInfo, dl); 2575ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!NewLHS.getNode()) 2576786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()), 25775480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, ISD::SETEQ); 2578786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::SELECT, dl, Tmp1.getValueType(), 2579cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS, Tmp1, Tmp2); 2580475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2581cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2582cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2583475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_BR_CC(SDNode *N) { 2584475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3); 258505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get(); 2586c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 258705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 258805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 258905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2590ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 259105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 259205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 259305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 259405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 259505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2596027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 259705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode), NewLHS, NewRHS, 2598027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(4)), 0); 259905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 260005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2601475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SELECT_CC(SDNode *N) { 2602475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 260305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get(); 2604c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 260505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 260605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 260705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2608ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 260905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 261005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 261105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 261205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 261305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2614027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 261505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(2), N->getOperand(3), 2616027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 261705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 261805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2619475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SETCC(SDNode *N) { 2620475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 262105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get(); 2622c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 262305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 262405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, use it. 2625ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 262605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(NewLHS.getValueType() == N->getValueType(0) && 262705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Unexpected setcc expansion!"); 262805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return NewLHS; 262905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 263005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 263105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, update N to have the operands specified. 2632027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 2633027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 263405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 263505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 263655467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::ExpandIntOp_Shift(SDNode *N) { 263755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // The value being shifted is legal, but the shift amount is too big. 263855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // It follows that either the result of the shift is undefined, or the 263955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // upper half of the shift amount is zero. Just use the lower half. 264055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta SDValue Lo, Hi; 264155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta GetExpandedInteger(N->getOperand(1), Lo, Hi); 2642027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Lo), 0); 264355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 264455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 26451c3436a67afcfaee5f972836ff1ffff2985adce1Anton KorobeynikovSDValue DAGTypeLegalizer::ExpandIntOp_RETURNADDR(SDNode *N) { 26461c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // The argument of RETURNADDR / FRAMEADDR builtin is 32 bit contant. This 26471c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // surely makes pretty nice problems on 8/16 bit targets. Just truncate this 26481c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // constant to valid type. 26491c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov SDValue Lo, Hi; 26501c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov GetExpandedInteger(N->getOperand(0), Lo, Hi); 2651027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, Lo), 0); 26521c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov} 26531c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov 2654475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) { 2655475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2656e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2657b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT); 265805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 265905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this SINT_TO_FP!"); 2660c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, N->getDebugLoc()); 266105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 266205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2663475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) { 2664ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalStore(N)) 2665ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands return ExpandOp_NormalStore(N, OpNo); 266678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 266778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 2668cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(OpNo == 1 && "Can only expand the stored value so far"); 2669cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2670e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getOperand(1).getValueType(); 267123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2672475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 2673475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 2674cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 2675cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 26761e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 2677786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2678475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2679cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2680a1ace76c70ae5332d6f33fce5c0c1e2fdb8cca11Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 2681cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 268278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 268369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2684ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 26851e559443a17d1b335f697551c6263ba60d5dd827David Greene N->getMemoryVT(), isVolatile, isNonTemporal, 26861e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 2687ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2688bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck 2689ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (TLI.isLittleEndian()) { 2690cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 269169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2692cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2693ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 26941e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 2695cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2696cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 269783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 269823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 2699cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2700cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 270183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2702786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 27030bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2704ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, 2705ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2706ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NEVT, isVolatile, isNonTemporal, 27071e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 2708825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2709ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2710cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2711ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Big-endian - high bits are at low addresses. Favor aligned stores at 2712ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // the cost of some bit-fiddling. 2713ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner GetExpandedInteger(N->getValue(), Lo, Hi); 2714ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2715ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT ExtVT = N->getMemoryVT(); 2716ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned EBytes = ExtVT.getStoreSize(); 2717ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned IncrementSize = NVT.getSizeInBits()/8; 2718ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 2719ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT HiVT = EVT::getIntegerVT(*DAG.getContext(), 2720ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner ExtVT.getSizeInBits() - ExcessBits); 2721ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2722ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (ExcessBits < NVT.getSizeInBits()) { 2723ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Transfer high bits from the top of Lo to the bottom of Hi. 2724ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::SHL, dl, NVT, Hi, 2725ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 2726ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy())); 2727ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::OR, dl, NVT, Hi, 2728ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getNode(ISD::SRL, dl, NVT, Lo, 2729ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(ExcessBits, 2730ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy()))); 2731cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2732ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2733ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store both the high bits and maybe some of the low bits. 2734ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getPointerInfo(), 2735ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner HiVT, isVolatile, isNonTemporal, Alignment); 2736ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2737ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Increment the pointer to the other half. 2738ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 2739ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getIntPtrConstant(IncrementSize)); 2740ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store the lowest ExcessBits bits in the second half. 2741ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getTruncStore(Ch, dl, Lo, Ptr, 2742ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2743ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 2744ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner isVolatile, isNonTemporal, 2745ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MinAlign(Alignment, IncrementSize)); 2746ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2747cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 274805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2749475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_TRUNCATE(SDNode *N) { 2750475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 275105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 275205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Just truncate the low part of the source. 2753786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), InL); 275405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 275505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 27568d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesenstatic const fltSemantics *EVTToAPFloatSemantics(EVT VT) { 27578d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen switch (VT.getSimpleVT().SimpleTy) { 27588d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen default: llvm_unreachable("Unknown FP format"); 27598d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f32: return &APFloat::IEEEsingle; 27608d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f64: return &APFloat::IEEEdouble; 27618d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f80: return &APFloat::x87DoubleExtended; 27628d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f128: return &APFloat::IEEEquad; 27638d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::ppcf128: return &APFloat::PPCDoubleDouble; 27648d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen } 27658d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen} 27668d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen 2767475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) { 2768475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2769e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SrcVT = Op.getValueType(); 2770e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2771c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 277205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 27738d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // The following optimization is valid only if every value in SrcVT (when 27748d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // treated as signed) is representable in DstVT. Check that the mantissa 27758d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // size of DstVT is >= than the number of bits in SrcVT -1. 27768d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen const fltSemantics *sem = EVTToAPFloatSemantics(DstVT); 27778d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen if (APFloat::semanticsPrecision(*sem) >= SrcVT.getSizeInBits()-1 && 27788d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen TLI.getOperationAction(ISD::SINT_TO_FP, SrcVT) == TargetLowering::Custom){ 277905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Do a signed conversion then adjust the result. 2780786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SignedConv = DAG.getNode(ISD::SINT_TO_FP, dl, DstVT, Op); 278105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SignedConv = TLI.LowerOperation(SignedConv, DAG); 278205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 278305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The result of the signed conversion needs adjusting if the 'sign bit' of 278405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // the incoming integer was set. To handle this, we dynamically test to see 278505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // if it is set, and, if so, add a fudge factor. 278605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 278705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE32 = 0x4F800000ULL; 278805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE64 = 0x5F800000ULL; 278905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE128 = 0x7F800000ULL; 279005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 279105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt FF(32, 0); 2792825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (SrcVT == MVT::i32) 279305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE32); 2794825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i64) 279505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE64); 2796825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i128) 279705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE128); 279805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else 27995e25ee8a1fcf8288d00d731b0f7ab7976f33b123Craig Topper llvm_unreachable("Unsupported UINT_TO_FP!"); 280005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 280105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Check whether the sign bit is set. 2802475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 280305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(Op, Lo, Hi); 28047fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue SignSet = DAG.getSetCC(dl, 2805786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(Hi.getValueType()), 28065480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Hi, DAG.getConstant(0, Hi.getValueType()), 2807ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands ISD::SETLT); 280805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 280905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Build a 64 bit pair (0, FF) in the constant pool, with FF in the lo bits. 2810001dbfebcbbded8c8e74b19e838b50da2b6c6fb5Owen Anderson SDValue FudgePtr = DAG.getConstantPool( 2811eed707b1e6097aac2bb6b3d47271f6300ace7f2eOwen Anderson ConstantInt::get(*DAG.getContext(), FF.zext(64)), 281249c18cce976c158e86f54c681dff21bb81640fb8Duncan Sands TLI.getPointerTy()); 281305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 281405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get a pointer to FF if the sign bit was set, or to 0 otherwise. 2815475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0); 2816475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Four = DAG.getIntPtrConstant(4); 281705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.isBigEndian()) std::swap(Zero, Four); 2818786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Offset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), SignSet, 2819ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands Zero, Four); 28201606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(FudgePtr)->getAlignment(); 2821786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen FudgePtr = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), FudgePtr, Offset); 282287a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 282305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 282405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Load the value out, extending it from f32 to the destination float type. 282505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // FIXME: Avoid the extend by constructing the right constant pool? 2826a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Fudge = DAG.getExtLoad(ISD::EXTLOAD, dl, DstVT, DAG.getEntryNode(), 28273d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner FudgePtr, 28283d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MachinePointerInfo::getConstantPool(), 28293d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MVT::f32, 28301e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, Alignment); 2831786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::FADD, dl, DstVT, SignedConv, Fudge); 283205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 283305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 283405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, use a libcall. 2835b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT); 283605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 283705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this UINT_TO_FP!"); 2838c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, dl); 283905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2840fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2841ba567d670d32e102a70b106fbfe284835085cb3fEli FriedmanSDValue DAGTypeLegalizer::ExpandIntOp_ATOMIC_STORE(SDNode *N) { 2842ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman DebugLoc dl = N->getDebugLoc(); 2843ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Swap = DAG.getAtomic(ISD::ATOMIC_SWAP, dl, 2844ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemoryVT(), 2845ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(0), 2846ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(1), N->getOperand(2), 2847ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemOperand(), 2848ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getOrdering(), 2849ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getSynchScope()); 2850ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman return Swap.getValue(1); 2851ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman} 2852ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2853ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2854fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N) { 2855fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue InOp0 = N->getOperand(0); 2856fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InVT = InOp0.getValueType(); 2857fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2858fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2859fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2860fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 28615b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem unsigned OutNumElems = OutVT.getVectorNumElements(); 2862fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2863fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2864fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2865fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue BaseIdx = N->getOperand(1); 2866fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2867fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 28685b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem Ops.reserve(OutNumElems); 2869fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != OutNumElems; ++i) { 2870fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2871fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract the element from the original vector. 2872fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Index = DAG.getNode(ISD::ADD, dl, BaseIdx.getValueType(), 2873fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem BaseIdx, DAG.getIntPtrConstant(i)); 2874fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2875fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem InVT.getVectorElementType(), N->getOperand(0), Index); 2876fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2877fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, Ext); 2878fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Insert the converted element to the new vector. 2879fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2880fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2881fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2882fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2883fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2884fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2885fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2886fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VECTOR_SHUFFLE(SDNode *N) { 2887fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem ShuffleVectorSDNode *SV = cast<ShuffleVectorSDNode>(N); 2888fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT VT = N->getValueType(0); 2889fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2890fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2891fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElts = VT.getVectorNumElements(); 2892fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<int, 8> NewMask; 2893fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElts; ++i) { 2894fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewMask.push_back(SV->getMaskElt(i)); 2895fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2896fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2897fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2898fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = GetPromotedInteger(N->getOperand(1)); 28995b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem EVT OutVT = V0.getValueType(); 2900fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 29015b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem return DAG.getVectorShuffle(OutVT, dl, V0, V1, &NewMask[0]); 2902fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2903fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2904fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2905fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_VECTOR(SDNode *N) { 2906fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2907fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2908fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2909fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElems = N->getNumOperands(); 2910fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2911fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2912fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2913fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2914fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 29155b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem Ops.reserve(NumElems); 2916fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElems; ++i) { 2917fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(i)); 2918fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2919fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2920fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2921fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2922fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2923fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2924fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_SCALAR_TO_VECTOR(SDNode *N) { 2925fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2926fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2927fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 29281396c403897e3d3e04fbf59f6c5fe77cbbab74a6Benjamin Kramer assert(!N->getOperand(0).getValueType().isVector() && 29291396c403897e3d3e04fbf59f6c5fe77cbbab74a6Benjamin Kramer "Input must be a scalar"); 2930fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2931fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2932fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2933fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2934fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2935fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2936fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(0)); 2937fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2938fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, NOutVT, Op); 2939fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2940fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2941c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_CONCAT_VECTORS(SDNode *N) { 2942c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2943c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2944c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT OutVT = N->getValueType(0); 2945c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2946c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2947c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2948d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman EVT InElemTy = OutVT.getVectorElementType(); 2949c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT OutElemTy = NOutVT.getVectorElementType(); 2950c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2951d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman unsigned NumElem = N->getOperand(0).getValueType().getVectorNumElements(); 2952c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem unsigned NumOutElem = NOutVT.getVectorNumElements(); 2953d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman unsigned NumOperands = N->getNumOperands(); 2954d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman assert(NumElem * NumOperands == NumOutElem && 2955d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman "Unexpected number of elements"); 2956c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2957c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem // Take the elements from the first vector. 2958c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem SmallVector<SDValue, 8> Ops(NumOutElem); 2959d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman for (unsigned i = 0; i < NumOperands; ++i) { 2960d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman SDValue Op = N->getOperand(i); 2961d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman for (unsigned j = 0; j < NumElem; ++j) { 2962d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2963d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman InElemTy, Op, DAG.getIntPtrConstant(j)); 2964d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman Ops[i * NumElem + j] = DAG.getNode(ISD::ANY_EXTEND, dl, OutElemTy, Ext); 2965d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman } 2966c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem } 2967c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2968c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2969c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem} 2970c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2971fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_INSERT_VECTOR_ELT(SDNode *N) { 2972fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2973fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2974fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2975fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2976fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2977fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2978fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2979811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2980fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2981fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue ConvElem = DAG.getNode(ISD::ANY_EXTEND, dl, 2982fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NOutVTElem, N->getOperand(1)); 2983811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem return DAG.getNode(ISD::INSERT_VECTOR_ELT, dl, NOutVT, 29842ff4bc615584fa9f32e64959767d64f2cb09fb99Nadav Rotem V0, ConvElem, N->getOperand(2)); 2985fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2986fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2987fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N) { 2988fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2989fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2990fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = N->getOperand(1); 2991fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2992fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem V0->getValueType(0).getScalarType(), V0, V1); 2993fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 29940eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem // EXTRACT_VECTOR_ELT can return types which are wider than the incoming 2995a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem // element types. If this is the case then we need to expand the outgoing 2996a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem // value and not truncate it. 2997a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem return DAG.getAnyExtOrTrunc(Ext, dl, N->getValueType(0)); 2998fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2999fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3000fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_CONCAT_VECTORS(SDNode *N) { 3001fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 3002811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem unsigned NumElems = N->getNumOperands(); 3003fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3004fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT RetSclrTy = N->getValueType(0).getVectorElementType(); 3005fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3006fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> NewOps; 3007811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem NewOps.reserve(NumElems); 3008fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3009fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // For each incoming vector 3010811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem for (unsigned VecIdx = 0; VecIdx != NumElems; ++VecIdx) { 3011fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Incoming = GetPromotedInteger(N->getOperand(VecIdx)); 3012fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT SclrTy = Incoming->getValueType(0).getVectorElementType(); 3013fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElem = Incoming->getValueType(0).getVectorNumElements(); 3014fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3015fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i=0; i<NumElem; ++i) { 3016fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract element from incoming vector 3017fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ex = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, SclrTy, 3018fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Incoming, DAG.getIntPtrConstant(i)); 3019fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Tr = DAG.getNode(ISD::TRUNCATE, dl, RetSclrTy, Ex); 3020fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewOps.push_back(Tr); 3021fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3022fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3023fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3024fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, N->getValueType(0), 3025fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem &NewOps[0], NewOps.size()); 3026fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3027