LegalizeIntegerTypes.cpp revision 0eba4fe292a0bb343da5fb2667850a39459cef0b
169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----- LegalizeIntegerTypes.cpp - Legalization of integer types -------===// 2cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 3cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// The LLVM Compiler Infrastructure 4cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 8cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 9cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 1069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// This file implements integer type expansion and promotion for LegalizeTypes. 1169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Promotion is the act of changing a computation in an illegal type into a 1269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// computation in a larger type. For example, implementing i8 arithmetic in an 1369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// i32 register (often needed on powerpc). 1469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Expansion is the act of changing a computation in an illegal type into a 1578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands// computation in two identical registers of a smaller type. For example, 1669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// implementing i64 arithmetic in two i32 registers (often needed on 32-bit 1769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// targets). 18cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 19cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 20cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 21cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#include "LegalizeTypes.h" 22362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher#include "llvm/DerivedTypes.h" 23c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang#include "llvm/CodeGen/PseudoSourceValue.h" 247d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin#include "llvm/Support/ErrorHandling.h" 25fd87a544c00c2ca04ee23aae67bbcad4dc852a54Dan Gohman#include "llvm/Support/raw_ostream.h" 26cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattnerusing namespace llvm; 27cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 28cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Promotion 30cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 31cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 3269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteIntegerResult - This method is called when a result of a node is 3369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// found to be in need of promotion to a larger type. At this point, the node 3469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// may also have invalid operands or may have other results that need 3569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// expansion, we just know that (at least) one result needs promotion. 3669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) { 37d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer result: "; N->dump(&DAG); dbgs() << "\n"); 389fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SDValue Res = SDValue(); 3969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 40126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands // See if the target wants to custom expand this node. 41f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 421607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 43126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 4469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (N->getOpcode()) { 4569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 4669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#ifndef NDEBUG 47d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerResult #" << ResNo << ": "; 48d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 4969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#endif 50c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator!"); 514c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands case ISD::MERGE_VALUES:Res = PromoteIntRes_MERGE_VALUES(N, ResNo); break; 529fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertSext: Res = PromoteIntRes_AssertSext(N); break; 539fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertZext: Res = PromoteIntRes_AssertZext(N); break; 54bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntRes_BITCAST(N); break; 559fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BSWAP: Res = PromoteIntRes_BSWAP(N); break; 569fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BUILD_PAIR: Res = PromoteIntRes_BUILD_PAIR(N); break; 579fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::Constant: Res = PromoteIntRes_Constant(N); break; 5800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang case ISD::CONVERT_RNDSAT: 599fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_CONVERT_RNDSAT(N); break; 609fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTLZ: Res = PromoteIntRes_CTLZ(N); break; 619fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTPOP: Res = PromoteIntRes_CTPOP(N); break; 629fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTTZ: Res = PromoteIntRes_CTTZ(N); break; 63bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ISD::EXTRACT_VECTOR_ELT: 649fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_EXTRACT_VECTOR_ELT(N); break; 659fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::LOAD: Res = PromoteIntRes_LOAD(cast<LoadSDNode>(N));break; 669fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT: Res = PromoteIntRes_SELECT(N); break; 67436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem case ISD::VSELECT: Res = PromoteIntRes_VSELECT(N); break; 689fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT_CC: Res = PromoteIntRes_SELECT_CC(N); break; 699fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SETCC: Res = PromoteIntRes_SETCC(N); break; 709fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SHL: Res = PromoteIntRes_SHL(N); break; 718d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands case ISD::SIGN_EXTEND_INREG: 729fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_SIGN_EXTEND_INREG(N); break; 739fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRA: Res = PromoteIntRes_SRA(N); break; 749fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRL: Res = PromoteIntRes_SRL(N); break; 759fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::TRUNCATE: Res = PromoteIntRes_TRUNCATE(N); break; 769fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UNDEF: Res = PromoteIntRes_UNDEF(N); break; 779fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::VAARG: Res = PromoteIntRes_VAARG(N); break; 78bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 79fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_SUBVECTOR: 80fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_EXTRACT_SUBVECTOR(N); break; 81fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::VECTOR_SHUFFLE: 82fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_VECTOR_SHUFFLE(N); break; 83fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::INSERT_VECTOR_ELT: 84fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_INSERT_VECTOR_ELT(N); break; 85fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::BUILD_VECTOR: 86fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_BUILD_VECTOR(N); break; 87fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::SCALAR_TO_VECTOR: 88fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_SCALAR_TO_VECTOR(N); break; 89c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem case ISD::CONCAT_VECTORS: 90c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem Res = PromoteIntRes_CONCAT_VECTORS(N); break; 91fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 9269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SIGN_EXTEND: 9369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ZERO_EXTEND: 949fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::ANY_EXTEND: Res = PromoteIntRes_INT_EXTEND(N); break; 95bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 9669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: 979fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::FP_TO_UINT: Res = PromoteIntRes_FP_TO_XINT(N); break; 9869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 99927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP32_TO_FP16:Res = PromoteIntRes_FP32_TO_FP16(N); break; 100927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 10169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AND: 10269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::OR: 10369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::XOR: 10469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ADD: 10569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SUB: 1069fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::MUL: Res = PromoteIntRes_SimpleIntBinOp(N); break; 10769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SDIV: 1099fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SREM: Res = PromoteIntRes_SDIV(N); break; 11069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 11169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::UDIV: 1129fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UREM: Res = PromoteIntRes_UDIV(N); break; 1138ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 114253174bf50c932abaa680f465e2888c0e5272267Bill Wendling case ISD::SADDO: 1159fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SSUBO: Res = PromoteIntRes_SADDSUBO(N, ResNo); break; 11674c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::UADDO: 1179fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::USUBO: Res = PromoteIntRes_UADDSUBO(N, ResNo); break; 11874c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::SMULO: 1199fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UMULO: Res = PromoteIntRes_XMULO(N, ResNo); break; 120b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 121331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman case ISD::ATOMIC_LOAD: 122331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman Res = PromoteIntRes_Atomic0(cast<AtomicSDNode>(N)); break; 123331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 1240b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_ADD: 1250b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_SUB: 1260b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_AND: 1270b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_OR: 1280b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_XOR: 1290b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_NAND: 1300b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MIN: 1310b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MAX: 1320b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMIN: 1330b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMAX: 1340b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_SWAP: 1359fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic1(cast<AtomicSDNode>(N)); break; 136b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1370b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_CMP_SWAP: 1389fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic2(cast<AtomicSDNode>(N)); break; 13969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 14069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1419fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands // If the result is null then the sub-method took care of registering it. 1429fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (Res.getNode()) 1439fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SetPromotedInteger(SDValue(N, ResNo), Res); 14469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 14569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1464c19e12d28749c717d3b384962c9ec92796af1c9Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_MERGE_VALUES(SDNode *N, 1474c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands unsigned ResNo) { 1484c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands SDValue Op = DisintegrateMERGE_VALUES(N, ResNo); 14962bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman return GetPromotedInteger(Op); 15062bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman} 15162bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman 152475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertSext(SDNode *N) { 15395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Sign-extend the new bits, and continue the assertion. 154c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = SExtPromotedInteger(N->getOperand(0)); 155786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertSext, N->getDebugLoc(), 156786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 15795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 15895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 159475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertZext(SDNode *N) { 16095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Zero the new bits, and continue the assertion. 161c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 162786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertZext, N->getDebugLoc(), 163786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 16495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 16595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 166331120b1a482b782e8dffce63033bb8514ba2a96Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntRes_Atomic0(AtomicSDNode *N) { 167331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman EVT ResVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 168331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 169331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getMemoryVT(), ResVT, 170331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getChain(), N->getBasePtr(), 171331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getMemOperand(), N->getOrdering(), 172331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getSynchScope()); 173331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman // Legalized the chain result - switch anything that used the old chain to 174331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman // use the new one. 175331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 176331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman return Res; 177331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman} 178331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 179b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic1(AtomicSDNode *N) { 180b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 1817fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 182786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getMemoryVT(), 1830b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman N->getChain(), N->getBasePtr(), 18455ba816883842e793cdeb32fcb805c4e011b527fEli Friedman Op2, N->getMemOperand(), N->getOrdering(), 18555ba816883842e793cdeb32fcb805c4e011b527fEli Friedman N->getSynchScope()); 186b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 187b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 188b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 189b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 190b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 191b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 192b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic2(AtomicSDNode *N) { 193b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 194b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op3 = GetPromotedInteger(N->getOperand(3)); 195fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 196f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen N->getMemoryVT(), N->getChain(), N->getBasePtr(), 19755ba816883842e793cdeb32fcb805c4e011b527fEli Friedman Op2, Op3, N->getMemOperand(), N->getOrdering(), 19855ba816883842e793cdeb32fcb805c4e011b527fEli Friedman N->getSynchScope()); 199b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 200b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 201b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 202b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 203b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 204b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 205bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) { 206475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = N->getOperand(0); 207e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT InVT = InOp.getValueType(); 20823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 209e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OutVT = N->getValueType(0); 21023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 211786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 21269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 21369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (getTypeAction(InVT)) { 21469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 21569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(false && "Unknown type action!"); 21669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 21796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 21869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 21996e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 22047d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (NOutVT.bitsEq(NInVT)) 22169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The input promotes to the same size. Convert the promoted value. 222bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetPromotedInteger(InOp)); 22369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 22496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSoftenFloat: 22569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the integer operand by hand. 226786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, GetSoftenedFloat(InOp)); 22796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 22896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandFloat: 22969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 23096e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeScalarizeVector: 23169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert the element to an integer and promote it by hand. 232c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem if (!NOutVT.isVector()) 233c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 234c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem BitConvertToInteger(GetScalarizedVector(InOp))); 235c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem break; 23696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSplitVector: { 237bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck // For example, i32 = BITCAST v2i16 on alpha. Convert the split 23869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // pieces of the input into integers and reassemble in the final type. 239475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 24069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetSplitVector(N->getOperand(0), Lo, Hi); 24169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Lo = BitConvertToInteger(Lo); 24269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Hi = BitConvertToInteger(Hi); 24369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 24469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 24569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 24669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 247786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen InOp = DAG.getNode(ISD::ANY_EXTEND, dl, 248adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT::getIntegerVT(*DAG.getContext(), 249adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng NOutVT.getSizeInBits()), 25069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands JoinIntegers(Lo, Hi)); 251bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp); 25269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 25396e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeWidenVector: 25487c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang if (OutVT.bitsEq(NInVT)) 25587c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang // The input is widened to the same size. Convert to the widened value. 256bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, OutVT, 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(); 315b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Op = DAG.getNode(ISD::CTLZ, 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(); 33369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The count is the same in the promoted type except if the original 33469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // value was zero. This can be handled by setting the bit just off 33569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the top of the original type. 33603dc093a2e63d20984c8fd67809fa762f1e31f1aDuncan Sands APInt TopBit(NVT.getSizeInBits(), 0); 3377a874ddda037349184fbeb22838cc11a1a9bb78fJay Foad TopBit.setBit(OVT.getSizeInBits()); 338786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::OR, dl, NVT, Op, DAG.getConstant(TopBit, NVT)); 339786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTTZ, dl, NVT, Op); 34069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 34169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 342475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N) { 343786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 34423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 345c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NVT, N->getOperand(0), 346c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman N->getOperand(1)); 34769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 34869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 349475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_FP_TO_XINT(SDNode *N) { 35023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 351a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands unsigned NewOpc = N->getOpcode(); 352786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 353d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 3544c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // If we're promoting a UINT to a larger size and the larger FP_TO_UINT is 3554c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // not Legal, check to see if we can use FP_TO_SINT instead. (If both UINT 35654e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // and SINT conversions are Custom, there is no way to tell which is 35754e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // preferable. We choose SINT because that's the right thing on PPC.) 358a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands if (N->getOpcode() == ISD::FP_TO_UINT && 3594c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 360f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NVT)) 361a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NewOpc = ISD::FP_TO_SINT; 362a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 363786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(NewOpc, dl, NVT, N->getOperand(0)); 364a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 365a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // Assert that the converted value fits in the original type. If it doesn't 366a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // (eg: because the value being converted is too big), then the result of the 367a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // original operation was undefined anyway, so the assert is still correct. 368a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands return DAG.getNode(N->getOpcode() == ISD::FP_TO_UINT ? 3690928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem ISD::AssertZext : ISD::AssertSext, dl, NVT, Res, 3700928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem DAG.getValueType(N->getValueType(0).getScalarType())); 371d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands} 372d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 373927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton KorobeynikovSDValue DAGTypeLegalizer::PromoteIntRes_FP32_TO_FP16(SDNode *N) { 374927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 375927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov DebugLoc dl = N->getDebugLoc(); 376927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 377927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov SDValue Res = DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 378927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 379927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov return DAG.getNode(ISD::AssertZext, dl, 380927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov NVT, Res, DAG.getValueType(N->getValueType(0))); 381927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov} 382927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 383475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_INT_EXTEND(SDNode *N) { 38423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 385786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 386be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 38796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem if (getTypeAction(N->getOperand(0).getValueType()) 38896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem == TargetLowering::TypePromoteInteger) { 389475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(N->getOperand(0)); 3906959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(Res.getValueType().bitsLE(NVT) && "Extension doesn't make sense!"); 391126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 392bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result and operand types are the same after promotion, simplify 393bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // to an in-register extension. 394bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (NVT == Res.getValueType()) { 395bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The high bits are not guaranteed to be anything. Insert an extend. 396bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::SIGN_EXTEND) 397786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 398bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DAG.getValueType(N->getOperand(0).getValueType())); 399bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::ZERO_EXTEND) 4000928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem return DAG.getZeroExtendInReg(Res, dl, 4010928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem N->getOperand(0).getValueType().getScalarType()); 402bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(N->getOpcode() == ISD::ANY_EXTEND && "Unknown integer extension!"); 403bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 404126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 40569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 40669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 407bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Otherwise, just extend the original operand all the way to the larger type. 408786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 409bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 41069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 411475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_LOAD(LoadSDNode *N) { 412bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 41323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 414bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::LoadExtType ExtType = 415bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::isNON_EXTLoad(N) ? ISD::EXTLOAD : N->getExtensionType(); 416786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 417a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Res = DAG.getExtLoad(ExtType, dl, NVT, N->getChain(), N->getBasePtr(), 4183d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner N->getPointerInfo(), 41947d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getMemoryVT(), N->isVolatile(), 4201e559443a17d1b335f697551c6263ba60d5dd827David Greene N->isNonTemporal(), N->getAlignment()); 42169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 422bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Legalized the chain result - switch anything that used the old chain to 423bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 424475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 425bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 42669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 42769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 428874ae251c317788391f9c3f113957802d390a063Dale Johannesen/// Promote the overflow flag of an overflowing arithmetic node. 429ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Overflow(SDNode *N) { 430ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Simply change the return type of the boolean result. 43123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(1)); 432e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ValueVTs[] = { N->getValueType(0), NVT }; 433ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue Ops[] = { N->getOperand(0), N->getOperand(1) }; 434786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(N->getOpcode(), N->getDebugLoc(), 435786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getVTList(ValueVTs, 2), Ops, 2); 436ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 437ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Modified the sum result - switch anything that used the old sum to use 438ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the new one. 439ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 0), Res); 440ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 441ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return SDValue(Res.getNode(), 1); 442ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 443ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 444ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo) { 445ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 446ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 447ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 448ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 449ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // sign extension of its truncation to the original type. 450ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 451ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 452e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 453e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 454786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 455ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 456ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 457ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::SADDO ? ISD::ADD : ISD::SUB; 458786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 459ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 460ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: sign extend the arithmetic result from 461ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 462786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Ofl = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 463ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands DAG.getValueType(OVT)); 464ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 465786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 466ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 467ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 468ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 469ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 470ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 471ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 472ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 473475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SDIV(SDNode *N) { 474bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Sign extend the input. 475c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 476c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 477786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 478786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 47969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 481475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT(SDNode *N) { 482475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(1)); 483475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(2)); 484786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT, N->getDebugLoc(), 485786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0),LHS,RHS); 48669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 488436fe8498a0a3368d2690290e805213a0f114d0dNadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VSELECT(SDNode *N) { 489436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue Mask = GetPromotedInteger(N->getOperand(0)); 490436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue LHS = GetPromotedInteger(N->getOperand(1)); 491436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue RHS = GetPromotedInteger(N->getOperand(2)); 492436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem return DAG.getNode(ISD::VSELECT, N->getDebugLoc(), 493436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem LHS.getValueType(), Mask, LHS, RHS); 494436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem} 495436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem 496475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT_CC(SDNode *N) { 497475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(2)); 498475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(3)); 499786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(), 500786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0), 501bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 50269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 50369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 504475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SETCC(SDNode *N) { 505e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = TLI.getSetCCResultType(N->getOperand(0).getValueType()); 50617e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem 50717e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem // Convert to the expected type. 50817e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 50917e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem 51017e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem // Only use the result of getSetCCResultType if it is legal, 51117e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem // otherwise just use the promoted result type (NVT). 51217e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem if (getTypeAction(SVT) != TargetLowering::TypeLegal) { 51317e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem SVT = NVT; 51417e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem } 51528b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands 516786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 51728b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(SVT.isVector() == N->getOperand(0).getValueType().isVector() && 51828b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands "Vector compare must return a vector result!"); 5197e4982287591945c4e42ba8470a978e629789c76Duncan Sands 5207e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Get the SETCC result using the canonical SETCC type. 52128b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands SDValue SetCC = DAG.getNode(N->getOpcode(), dl, SVT, N->getOperand(0), 5227e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 5237e4982287591945c4e42ba8470a978e629789c76Duncan Sands 5246959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(NVT.bitsLE(SVT) && "Integer type overpromoted?"); 525786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, NVT, SetCC); 52669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 52769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 528475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SHL(SDNode *N) { 529786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SHL, N->getDebugLoc(), 530182465c589f95ff165331d06035ec53ff05bf1f5Evan Cheng TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)), 531bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands GetPromotedInteger(N->getOperand(0)), N->getOperand(1)); 53269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 53369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 534475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N) { 535475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 536786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, N->getDebugLoc(), 537786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 5388d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands} 5398d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands 540475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SimpleIntBinOp(SDNode *N) { 541bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input may have strange things in the top bits of the registers, but 542bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // these operations don't care. They may have weird bits going out, but 543bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // that too is okay if they are integer operations. 544475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(0)); 545475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(1)); 546786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 547786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 54869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 54969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 550475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRA(SDNode *N) { 551bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly sign extended. 552c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Res = SExtPromotedInteger(N->getOperand(0)); 553786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRA, N->getDebugLoc(), 554786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res.getValueType(), Res, N->getOperand(1)); 555bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 55669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 557475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRL(SDNode *N) { 558bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly zero extended. 559e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 56023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 561475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = ZExtPromotedInteger(N->getOperand(0)); 562786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, N->getDebugLoc(), NVT, Res, N->getOperand(1)); 56369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 56469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 565475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_TRUNCATE(SDNode *N) { 56623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 567475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res; 5684720611025276f01b158a1522620391332ffdc32Nadav Rotem SDValue InOp = N->getOperand(0); 5694720611025276f01b158a1522620391332ffdc32Nadav Rotem DebugLoc dl = N->getDebugLoc(); 57069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 5714720611025276f01b158a1522620391332ffdc32Nadav Rotem switch (getTypeAction(InOp.getValueType())) { 572c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown type action!"); 57396e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 57496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 5754720611025276f01b158a1522620391332ffdc32Nadav Rotem Res = InOp; 576bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 57796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 5784720611025276f01b158a1522620391332ffdc32Nadav Rotem Res = GetPromotedInteger(InOp); 579bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 5804720611025276f01b158a1522620391332ffdc32Nadav Rotem case TargetLowering::TypeSplitVector: 5814720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT InVT = InOp.getValueType(); 5824720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(InVT.isVector() && "Cannot split scalar types"); 5834720611025276f01b158a1522620391332ffdc32Nadav Rotem unsigned NumElts = InVT.getVectorNumElements(); 5844720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(NumElts == NVT.getVectorNumElements() && 5854720611025276f01b158a1522620391332ffdc32Nadav Rotem "Dst and Src must have the same number of elements"); 5864720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT EltVT = InVT.getScalarType(); 5874720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(isPowerOf2_32(NumElts) && 5884720611025276f01b158a1522620391332ffdc32Nadav Rotem "Promoted vector type must be a power of two"); 5894720611025276f01b158a1522620391332ffdc32Nadav Rotem 5904720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT HalfVT = EVT::getVectorVT(*DAG.getContext(), EltVT, NumElts/2); 5914720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT HalfNVT = EVT::getVectorVT(*DAG.getContext(), NVT.getScalarType(), 5924720611025276f01b158a1522620391332ffdc32Nadav Rotem NumElts/2); 5934720611025276f01b158a1522620391332ffdc32Nadav Rotem 5944720611025276f01b158a1522620391332ffdc32Nadav Rotem SDValue EOp1 = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, HalfVT, InOp, 5954720611025276f01b158a1522620391332ffdc32Nadav Rotem DAG.getIntPtrConstant(0)); 5964720611025276f01b158a1522620391332ffdc32Nadav Rotem SDValue EOp2 = DAG.getNode(ISD::EXTRACT_SUBVECTOR, dl, HalfVT, InOp, 5974720611025276f01b158a1522620391332ffdc32Nadav Rotem DAG.getIntPtrConstant(NumElts/2)); 5984720611025276f01b158a1522620391332ffdc32Nadav Rotem EOp1 = DAG.getNode(ISD::TRUNCATE, dl, HalfNVT, EOp1); 5994720611025276f01b158a1522620391332ffdc32Nadav Rotem EOp2 = DAG.getNode(ISD::TRUNCATE, dl, HalfNVT, EOp2); 6004720611025276f01b158a1522620391332ffdc32Nadav Rotem 6014720611025276f01b158a1522620391332ffdc32Nadav Rotem return DAG.getNode(ISD::CONCAT_VECTORS, dl, NVT, EOp1, EOp2); 602bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands } 603bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 604bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate to NVT instead of VT 6054720611025276f01b158a1522620391332ffdc32Nadav Rotem return DAG.getNode(ISD::TRUNCATE, dl, NVT, Res); 60669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 60769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 608ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo) { 609ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 610ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 611ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 612ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 613ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // zero extension of its truncation to the original type. 614c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 615c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 616e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 617e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 618786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 61969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 620ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 621ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::UADDO ? ISD::ADD : ISD::SUB; 622786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 6238ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 624ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: zero extend the arithmetic result from 625ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 6264be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen SDValue Ofl = DAG.getZeroExtendInReg(Res, dl, OVT); 627ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 628786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 6298ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 630ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 631ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 6328ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 633ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 634ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 635ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 6365c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris LattnerSDValue DAGTypeLegalizer::PromoteIntRes_XMULO(SDNode *N, unsigned ResNo) { 6375c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Promote the overflow bit trivially. 6385c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (ResNo == 1) 6395c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return PromoteIntRes_Overflow(N); 640fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 6415c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 6425c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DebugLoc DL = N->getDebugLoc(); 643fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands EVT SmallVT = LHS.getValueType(); 644fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 645b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // To determine if the result overflowed in a larger type, we extend the 646b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // input to the larger type, do the multiply, then check the high bits of 647b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // the result to see if the overflow happened. 6485c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::SMULO) { 6495c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = SExtPromotedInteger(LHS); 6505c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = SExtPromotedInteger(RHS); 6515c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 6525c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = ZExtPromotedInteger(LHS); 6535c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = ZExtPromotedInteger(RHS); 6545c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 6555c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Mul = DAG.getNode(ISD::MUL, DL, LHS.getValueType(), LHS, RHS); 656fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 657b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // Overflow occurred iff the high part of the result does not 658b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // zero/sign-extend the low part. 6595c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Overflow; 6605c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::UMULO) { 661fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Unsigned overflow occurred iff the high part is non-zero. 6625c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Hi = DAG.getNode(ISD::SRL, DL, Mul.getValueType(), Mul, 663fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands DAG.getIntPtrConstant(SmallVT.getSizeInBits())); 6645c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner Overflow = DAG.getSetCC(DL, N->getValueType(1), Hi, 6655c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DAG.getConstant(0, Hi.getValueType()), ISD::SETNE); 6665c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 667fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Signed overflow occurred iff the high part does not sign extend the low. 668fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands SDValue SExt = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, Mul.getValueType(), 669fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Mul, DAG.getValueType(SmallVT)); 670fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Overflow = DAG.getSetCC(DL, N->getValueType(1), SExt, Mul, ISD::SETNE); 6715c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 6725c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 6735c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Use the calculated overflow everywhere. 6745c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner ReplaceValueWith(SDValue(N, 1), Overflow); 6755c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return Mul; 6765c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner} 6775c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 678ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { 679ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Zero extend the input. 680ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 681ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 682786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 683786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 6848ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling} 6858ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 686475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_UNDEF(SDNode *N) { 68753f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng return DAG.getUNDEF(TLI.getTypeToTransformTo(*DAG.getContext(), 68853f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng N->getValueType(0))); 68969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 69069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 691475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_VAARG(SDNode *N) { 692475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = N->getOperand(0); // Get the chain. 693475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getOperand(1); // Get the pointer. 694e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 695786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 69669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 69723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT RegVT = TLI.getRegisterType(*DAG.getContext(), VT); 69823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson unsigned NumRegs = TLI.getNumRegisters(*DAG.getContext(), VT); 699d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // The argument is passed as NumRegs registers of type RegVT. 700d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 701d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands SmallVector<SDValue, 8> Parts(NumRegs); 702d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 0; i < NumRegs; ++i) { 703cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola Parts[i] = DAG.getVAArg(RegVT, dl, Chain, Ptr, N->getOperand(2), 704cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola N->getConstantOperandVal(3)); 705d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands Chain = Parts[i].getValue(1); 706d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 70769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 708d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Handle endianness of the load. 709d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands if (TLI.isBigEndian()) 710d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands std::reverse(Parts.begin(), Parts.end()); 71169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 712d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Assemble the parts in the promoted type. 71323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 714786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[0]); 715d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 1; i < NumRegs; ++i) { 716786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Part = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[i]); 717d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Shift it to the right position and "or" it in. 718786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Part = DAG.getNode(ISD::SHL, dl, NVT, Part, 719d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands DAG.getConstant(i * RegVT.getSizeInBits(), 72092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 721786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res = DAG.getNode(ISD::OR, dl, NVT, Res, Part); 722d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 72369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 724d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Modified the chain result - switch anything that used the old chain to 725bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 726d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands ReplaceValueWith(SDValue(N, 1), Chain); 727d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 728d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands return Res; 72969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 73069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 731bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 732bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands// Integer Operand Promotion 733bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 7347fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 735bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// PromoteIntegerOperand - This method is called when the specified operand of 736bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// the specified node is found to need promotion. At this point, all of the 737bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// result types of the node are known to be legal, but other operands of the 738bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// node may need promotion or expansion as well as the specified one. 739bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sandsbool DAGTypeLegalizer::PromoteIntegerOperand(SDNode *N, unsigned OpNo) { 740d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer operand: "; N->dump(&DAG); dbgs() << "\n"); 741475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 7427fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 743f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 744bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 74569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 746bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 747bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 748bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #ifndef NDEBUG 749d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerOperand Op #" << OpNo << ": "; 750d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 751bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #endif 752c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator's operand!"); 753bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 754bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ANY_EXTEND: Res = PromoteIntOp_ANY_EXTEND(N); break; 755331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman case ISD::ATOMIC_STORE: 756331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman Res = PromoteIntOp_ATOMIC_STORE(cast<AtomicSDNode>(N)); 757331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman break; 758bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntOp_BITCAST(N); break; 759bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BR_CC: Res = PromoteIntOp_BR_CC(N, OpNo); break; 760bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BRCOND: Res = PromoteIntOp_BRCOND(N, OpNo); break; 761bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_PAIR: Res = PromoteIntOp_BUILD_PAIR(N); break; 762bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_VECTOR: Res = PromoteIntOp_BUILD_VECTOR(N); break; 763fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::CONCAT_VECTORS: Res = PromoteIntOp_CONCAT_VECTORS(N); break; 764fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_VECTOR_ELT: Res = PromoteIntOp_EXTRACT_VECTOR_ELT(N); break; 765bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::CONVERT_RNDSAT: 766bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_CONVERT_RNDSAT(N); break; 767bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: 768bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_INSERT_VECTOR_ELT(N, OpNo);break; 769bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::MEMBARRIER: Res = PromoteIntOp_MEMBARRIER(N); break; 770aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang case ISD::SCALAR_TO_VECTOR: 771aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang Res = PromoteIntOp_SCALAR_TO_VECTOR(N); break; 77228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands case ISD::VSELECT: 773bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT: Res = PromoteIntOp_SELECT(N, OpNo); break; 774bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT_CC: Res = PromoteIntOp_SELECT_CC(N, OpNo); break; 775bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SETCC: Res = PromoteIntOp_SETCC(N, OpNo); break; 776bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SIGN_EXTEND: Res = PromoteIntOp_SIGN_EXTEND(N); break; 777bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SINT_TO_FP: Res = PromoteIntOp_SINT_TO_FP(N); break; 778bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::STORE: Res = PromoteIntOp_STORE(cast<StoreSDNode>(N), 779bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta OpNo); break; 780bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::TRUNCATE: Res = PromoteIntOp_TRUNCATE(N); break; 781927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP16_TO_FP32: 782bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::UINT_TO_FP: Res = PromoteIntOp_UINT_TO_FP(N); break; 783bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ZERO_EXTEND: Res = PromoteIntOp_ZERO_EXTEND(N); break; 78455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 78555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 78655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 78755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 78855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 78955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = PromoteIntOp_Shift(N); break; 790bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta } 7919fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands 792bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result is null, the sub-method took care of registering results etc. 7939fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (!Res.getNode()) return false; 79447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 79547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 79647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 79747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 798bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return true; 799bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 800bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 801bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands "Invalid operand expansion"); 802bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 803475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 804bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return false; 80569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 80669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 80769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteSetCCOperands - Promote the operands of a comparison. This code is 80869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// shared among BR_CC, SELECT_CC, and SETCC handlers. 809475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::PromoteSetCCOperands(SDValue &NewLHS,SDValue &NewRHS, 81069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands ISD::CondCode CCCode) { 811cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // We have to insert explicit sign or zero extends. Note that we could 812cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // insert sign extends for ALL conditions, but zero extend is cheaper on 813cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // many machines (an AND instead of two shifts), so prefer it. 81469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (CCCode) { 815c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer comparison!"); 81669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETEQ: 81769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETNE: 81869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGE: 81969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGT: 82069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULE: 82169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULT: 82269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // ALL of these operations will work if we either sign or zero extend 82369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the operands (including the unsigned comparisons!). Zero extend is 82469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // usually a simpler/cheaper operation, so prefer it. 825c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = ZExtPromotedInteger(NewLHS); 826c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = ZExtPromotedInteger(NewRHS); 82711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 82869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGE: 82969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGT: 83069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLT: 83169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLE: 832c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = SExtPromotedInteger(NewLHS); 833c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = SExtPromotedInteger(NewRHS); 83411ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 83569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 83669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 83769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 838475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ANY_EXTEND(SDNode *N) { 839475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 840786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), N->getValueType(0), Op); 841bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 84269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 843331120b1a482b782e8dffce63033bb8514ba2a96Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntOp_ATOMIC_STORE(AtomicSDNode *N) { 844331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 845331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman return DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), N->getMemoryVT(), 846331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getChain(), N->getBasePtr(), Op2, N->getMemOperand(), 847331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getOrdering(), N->getSynchScope()); 848331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman} 849331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 850bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntOp_BITCAST(SDNode *N) { 85127759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // This should only occur in unusual situations like bitcasting to an 85227759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // x86_fp80, so just turn it into a store+load 85327759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman return CreateStackStoreLoad(N->getOperand(0), N->getValueType(0)); 85427759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman} 85527759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman 856475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo) { 857bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 2 && "Don't know how to promote this operand!"); 85869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 859475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(2); 860475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(3); 861bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(1))->get()); 86269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 863bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0), CC (#1) and basic block destination (Op#4) are always 864bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal types. 865027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 866027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), LHS, RHS, N->getOperand(4)), 867027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 868bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 869bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 870475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo) { 871bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 1 && "only know how to promote condition"); 872bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 873b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 874825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson EVT SVT = TLI.getSetCCResultType(MVT::Other); 875b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(1), SVT); 876bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 877bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0) and basic block destination (Op#2) are always legal types. 878027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Cond, 879027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 0); 880bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 881bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 882475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_PAIR(SDNode *N) { 883bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Since the result type is legal, the operands must promote to it. 884e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 885c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Lo = ZExtPromotedInteger(N->getOperand(0)); 886475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = GetPromotedInteger(N->getOperand(1)); 887bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Lo.getValueType() == N->getValueType(0) && "Operand over promoted?"); 888786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 889bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 890786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, N->getValueType(0), Hi, 89192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(OVT.getSizeInBits(), TLI.getPointerTy())); 892786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::OR, dl, N->getValueType(0), Lo, Hi); 89369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 89469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 895475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_VECTOR(SDNode *N) { 89669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The vector type is legal but the element type is not. This implies 89769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // that the vector is a power-of-two in length and that the element 89869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // type does not have a strange size (eg: it is not i1). 899e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VecVT = N->getValueType(0); 90069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned NumElts = VecVT.getVectorNumElements(); 90169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(NumElts & 1) && "Legal vector of one illegal element?"); 90269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 903b1303d05a89972195de023fda432cc621375a27cBob Wilson // Promote the inserted value. The type does not need to match the 904b1303d05a89972195de023fda432cc621375a27cBob Wilson // vector element type. Check that any extra bits introduced will be 905b1303d05a89972195de023fda432cc621375a27cBob Wilson // truncated away. 906b1303d05a89972195de023fda432cc621375a27cBob Wilson assert(N->getOperand(0).getValueType().getSizeInBits() >= 907b1303d05a89972195de023fda432cc621375a27cBob Wilson N->getValueType(0).getVectorElementType().getSizeInBits() && 908b1303d05a89972195de023fda432cc621375a27cBob Wilson "Type of inserted value narrower than vector element type!"); 90969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 910b1303d05a89972195de023fda432cc621375a27cBob Wilson SmallVector<SDValue, 16> NewOps; 911c885165e664f3b465403e1b6ce57ba63f57c5f0cBob Wilson for (unsigned i = 0; i < NumElts; ++i) 912b1303d05a89972195de023fda432cc621375a27cBob Wilson NewOps.push_back(GetPromotedInteger(N->getOperand(i))); 91369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 914027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, &NewOps[0], NumElts), 0); 91569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 91669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 91728088d3c049017a131aa7b07201c6e19c0227cefMon P WangSDValue DAGTypeLegalizer::PromoteIntOp_CONVERT_RNDSAT(SDNode *N) { 91828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 91928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 92028088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 92128088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_FS || CvtCode == ISD::CVT_FU) && 92228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang "can only promote integer arguments"); 92328088d3c049017a131aa7b07201c6e19c0227cefMon P Wang SDValue InOp = GetPromotedInteger(N->getOperand(0)); 924c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(N->getValueType(0), N->getDebugLoc(), InOp, 92528088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(1), N->getOperand(2), 92628088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 92728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang} 92828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang 929475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, 930475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned OpNo) { 93169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OpNo == 1) { 93269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the inserted value. This is valid because the type does not 93369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // have to match the vector element type. 93469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 93569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Check that any extra bits introduced will be truncated away. 93669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(N->getOperand(1).getValueType().getSizeInBits() >= 93769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getValueType(0).getVectorElementType().getSizeInBits() && 93869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Type of inserted value narrower than vector element type!"); 939027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 94069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetPromotedInteger(N->getOperand(1)), 941027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 942027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 94369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 94469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 94569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OpNo == 2 && "Different operand and result vector types?"); 94669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 94769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the index. 948c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Idx = ZExtPromotedInteger(N->getOperand(2)); 949027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 950027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), Idx), 0); 95169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 95269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 953475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_MEMBARRIER(SDNode *N) { 954475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewOps[6]; 9554be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 95669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewOps[0] = N->getOperand(0); 95769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 1; i < array_lengthof(NewOps); ++i) { 958475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag = GetPromotedInteger(N->getOperand(i)); 959825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson NewOps[i] = DAG.getZeroExtendInReg(Flag, dl, MVT::i1); 96069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 961027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewOps, array_lengthof(NewOps)), 0); 96269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 96369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 964aa9df0b0c3cef33514095bde2eedead986677955Mon P WangSDValue DAGTypeLegalizer::PromoteIntOp_SCALAR_TO_VECTOR(SDNode *N) { 965b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // Integer SCALAR_TO_VECTOR operands are implicitly truncated, so just promote 966b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // the operand in place. 967027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 968027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman GetPromotedInteger(N->getOperand(0))), 0); 969aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang} 970aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang 971475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT(SDNode *N, unsigned OpNo) { 97228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(OpNo == 0 && "Only know how to promote the condition!"); 97328b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands SDValue Cond = N->getOperand(0); 97428b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands EVT OpTy = N->getOperand(1).getValueType(); 9757e4982287591945c4e42ba8470a978e629789c76Duncan Sands 976b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 97728b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands EVT SVT = TLI.getSetCCResultType(N->getOpcode() == ISD::SELECT ? 97828b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands OpTy.getScalarType() : OpTy); 97928b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands Cond = PromoteTargetBoolean(Cond, SVT); 980bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 98128b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands return SDValue(DAG.UpdateNodeOperands(N, Cond, N->getOperand(1), 98228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands N->getOperand(2)), 0); 983bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 984bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 985475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo) { 986bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 987bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 988475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 989475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 990bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(4))->get()); 991bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 992bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#4) and the possible return values (#2 and #3) have legal types. 993027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2), 994027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(3), N->getOperand(4)), 0); 995bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 996bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 997475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SETCC(SDNode *N, unsigned OpNo) { 998bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 999bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1000475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 1001475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 1002bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get()); 1003bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1004bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#2) is always legal. 1005027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2)), 0); 1006bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1007bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 100855467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::PromoteIntOp_Shift(SDNode *N) { 1009027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 1010027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(1))), 0); 101155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 101255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 1013475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SIGN_EXTEND(SDNode *N) { 1014475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 1015786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1016786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 1017786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), 1018bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Op, DAG.getValueType(N->getOperand(0).getValueType())); 1019bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1020bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1021c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_SINT_TO_FP(SDNode *N) { 1022027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 1023027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SExtPromotedInteger(N->getOperand(0))), 0); 1024c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 1025c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 1026475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){ 1027bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 1028475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(), Ptr = N->getBasePtr(); 1029bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Alignment = N->getAlignment(); 1030bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands bool isVolatile = N->isVolatile(); 10311e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1032786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1033bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1034475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = GetPromotedInteger(N->getValue()); // Get promoted value. 1035bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1036bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate the value and store the result. 1037ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Val, Ptr, N->getPointerInfo(), 1038ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getMemoryVT(), 10391e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1040bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1041bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1042475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_TRUNCATE(SDNode *N) { 1043475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 1044786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), Op); 1045bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1046bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1047c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_UINT_TO_FP(SDNode *N) { 1048027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 1049027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(0))), 0); 1050c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 1051c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 1052475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ZERO_EXTEND(SDNode *N) { 10534be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1054475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 10554be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 10568e614322498f9b38995a6bf41100ca617180eacbNadav Rotem return DAG.getZeroExtendInReg(Op, dl, 10578e614322498f9b38995a6bf41100ca617180eacbNadav Rotem N->getOperand(0).getValueType().getScalarType()); 1058bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1059bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 106069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 106169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 106269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Expansion 106369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 106469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 106569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// ExpandIntegerResult - This method is called when the specified result of the 1066cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// specified node is found to need expansion. At this point, the node may also 1067cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// have invalid operands or may have other results that need promotion, we just 1068cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// know that (at least) one result needs expansion. 106969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) { 1070d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer result: "; N->dump(&DAG); dbgs() << "\n"); 1071475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 1072475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Lo = Hi = SDValue(); 1073cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1074cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // See if the target wants to custom expand this node. 1075f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 10761607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 1077cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1078cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (N->getOpcode()) { 1079cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: 1080cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#ifndef NDEBUG 1081d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerResult #" << ResNo << ": "; 1082d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 1083cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#endif 1084c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand the result of this operator!"); 108569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10864c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, ResNo, Lo, Hi); break; 108778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break; 108878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break; 108978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break; 109078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1091bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: ExpandRes_BITCAST(N, Lo, Hi); break; 109278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break; 10934a307ecce68f90e0eebf1ded52b947816cdc2304Duncan Sands case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break; 109478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break; 109521c2972f7d24680f6475877a3398b7f8cf515b33Duncan Sands case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break; 109678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 109769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ANY_EXTEND: ExpandIntRes_ANY_EXTEND(N, Lo, Hi); break; 109895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands case ISD::AssertSext: ExpandIntRes_AssertSext(N, Lo, Hi); break; 109969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AssertZext: ExpandIntRes_AssertZext(N, Lo, Hi); break; 110005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::BSWAP: ExpandIntRes_BSWAP(N, Lo, Hi); break; 110105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::Constant: ExpandIntRes_Constant(N, Lo, Hi); break; 110205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTLZ: ExpandIntRes_CTLZ(N, Lo, Hi); break; 110305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTPOP: ExpandIntRes_CTPOP(N, Lo, Hi); break; 110405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTTZ: ExpandIntRes_CTTZ(N, Lo, Hi); break; 110569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: ExpandIntRes_FP_TO_SINT(N, Lo, Hi); break; 110669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_UINT: ExpandIntRes_FP_TO_UINT(N, Lo, Hi); break; 110769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::LOAD: ExpandIntRes_LOAD(cast<LoadSDNode>(N), Lo, Hi); break; 110805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::MUL: ExpandIntRes_MUL(N, Lo, Hi); break; 110905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SDIV: ExpandIntRes_SDIV(N, Lo, Hi); break; 111005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND: ExpandIntRes_SIGN_EXTEND(N, Lo, Hi); break; 111105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND_INREG: ExpandIntRes_SIGN_EXTEND_INREG(N, Lo, Hi); break; 111205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SREM: ExpandIntRes_SREM(N, Lo, Hi); break; 111305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::TRUNCATE: ExpandIntRes_TRUNCATE(N, Lo, Hi); break; 111405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UDIV: ExpandIntRes_UDIV(N, Lo, Hi); break; 111505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UREM: ExpandIntRes_UREM(N, Lo, Hi); break; 111605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::ZERO_EXTEND: ExpandIntRes_ZERO_EXTEND(N, Lo, Hi); break; 1117ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman case ISD::ATOMIC_LOAD: ExpandIntRes_ATOMIC_LOAD(N, Lo, Hi); break; 111869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 11198d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_ADD: 11208d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_SUB: 11218d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_AND: 11228d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_OR: 11238d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_XOR: 11248d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_NAND: 11258d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MIN: 11268d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MAX: 11278d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMIN: 11288d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMAX: 11298d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_SWAP: { 11308d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher std::pair<SDValue, SDValue> Tmp = ExpandAtomic(N); 11318d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher SplitInteger(Tmp.first, Lo, Hi); 11328d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher ReplaceValueWith(SDValue(N, 1), Tmp.second); 11338d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher break; 11348d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher } 11358d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher 1136cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::AND: 1137cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::OR: 113805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::XOR: ExpandIntRes_Logical(N, Lo, Hi); break; 113905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1140cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADD: 114105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUB: ExpandIntRes_ADDSUB(N, Lo, Hi); break; 114205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1143cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDC: 114405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBC: ExpandIntRes_ADDSUBC(N, Lo, Hi); break; 114505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1146cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDE: 114705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBE: ExpandIntRes_ADDSUBE(N, Lo, Hi); break; 114805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1149cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SHL: 1150cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SRA: 115105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: ExpandIntRes_Shift(N, Lo, Hi); break; 1152268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1153268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SADDO: 1154268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SSUBO: ExpandIntRes_SADDSUBO(N, Lo, Hi); break; 1155268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::UADDO: 1156268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::USUBO: ExpandIntRes_UADDSUBO(N, Lo, Hi); break; 1157362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher case ISD::UMULO: 1158362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher case ISD::SMULO: ExpandIntRes_XMULO(N, Lo, Hi); break; 1159cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1160d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1161cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If Lo/Hi is null, the sub-method took care of registering results etc. 1162ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Lo.getNode()) 1163475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SetExpandedInteger(SDValue(N, ResNo), Lo, Hi); 1164cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1165cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 116693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher/// Lower an atomic node to the appropriate builtin call. 116793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopherstd::pair <SDValue, SDValue> DAGTypeLegalizer::ExpandAtomic(SDNode *Node) { 116893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher unsigned Opc = Node->getOpcode(); 116993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher MVT VT = cast<AtomicSDNode>(Node)->getMemoryVT().getSimpleVT(); 117093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher RTLIB::Libcall LC; 117193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 117293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (Opc) { 117393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: 117493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher llvm_unreachable("Unhandled atomic intrinsic Expand!"); 117593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 117693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_SWAP: 117793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 117893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 117993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_1; break; 118093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_2; break; 118193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_4; break; 118293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_8; break; 118393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 118493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 118593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_CMP_SWAP: 118693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 118793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 118893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1; break; 118993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2; break; 119093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4; break; 119193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8; break; 119293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 119393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 119493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_ADD: 119593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 119693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 119793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_ADD_1; break; 119893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_ADD_2; break; 119993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_ADD_4; break; 120093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_ADD_8; break; 120193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 120293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 120393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_SUB: 120493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 120593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 120693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_SUB_1; break; 120793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_SUB_2; break; 120893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_SUB_4; break; 120993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_SUB_8; break; 121093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 121193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 121293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_AND: 121393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 121493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 121593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_AND_1; break; 121693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_AND_2; break; 121793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_AND_4; break; 121893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_AND_8; break; 121993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 122093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 122193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_OR: 122293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 122393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 122493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_OR_1; break; 122593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_OR_2; break; 122693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_OR_4; break; 122793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_OR_8; break; 122893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 122993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 123093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_XOR: 123193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 123293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 123393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_XOR_1; break; 123493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_XOR_2; break; 123593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_XOR_4; break; 123693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_XOR_8; break; 123793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 123893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 123993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_NAND: 124093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 124193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 124293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_NAND_1; break; 124393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_NAND_2; break; 124493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_NAND_4; break; 124593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_NAND_8; break; 124693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 124793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 124893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 124993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 125093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher return ExpandChainLibCall(LC, Node, false); 125193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher} 125293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 125305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftByConstant - N is a shift by a value that needs to be expanded, 125405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// and the shift amount is a constant 'Amt'. Expand the operation. 125505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandShiftByConstant(SDNode *N, unsigned Amt, 1256475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1257e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DebugLoc DL = N->getDebugLoc(); 125805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the incoming operand to be shifted, so that we have its parts 1259475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 126005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1261cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1262e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = InL.getValueType(); 126305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned VTBits = N->getValueType(0).getSizeInBits(); 126405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 1265e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = N->getOperand(1).getValueType(); 1266cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 126705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SHL) { 126805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 126905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = Hi = DAG.getConstant(0, NVT); 127005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 127105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 1272e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SHL, DL, 1273915eeb488786379250808d47668c43e010efe566Chris Lattner NVT, InL, DAG.getConstant(Amt-NVTBits, ShTy)); 127405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 127505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 127605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = InL; 1277104de6cf7b80ec5e9beb502a069f376810a0a1e3Richard Osborne } else if (Amt == 1 && 1278f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::ADDC, 127954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToExpandTo(*DAG.getContext(), NVT))) { 128005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Emit this X << 1 as X+X. 1281f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 1282475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { InL, InL }; 1283e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::ADDC, DL, VTList, LoOps, 2); 1284475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { InH, InH, Lo.getValue(1) }; 1285e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::ADDE, DL, VTList, HiOps, 3); 128605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1287e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SHL, DL, NVT, InL, DAG.getConstant(Amt, ShTy)); 1288e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::OR, DL, NVT, 1289e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 129005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1291e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 129205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 129305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 129405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1295cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1296cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 129705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SRL) { 129805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 129905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 130005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 130105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1302e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRL, DL, 1303786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InH, DAG.getConstant(Amt-NVTBits,ShTy)); 130405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 130505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 130605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 130705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 130805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1309e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1310e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 131105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1312e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 131305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1314e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRL, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 131505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 131605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1317cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1318d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 131905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 132005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 1321e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 132205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 132305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1324e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 132505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt-NVTBits, ShTy)); 1326e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 132705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 132805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 132905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 1330e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 133105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1332d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } else { 1333e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1334e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 133505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1336e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 133705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1338e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 1339d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } 1340d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands} 1341d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 134205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftWithKnownAmountBit - Try to determine whether we can simplify 134305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// this shift based on knowledge of the high bit of the shift amount. If we 134405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// can tell this, we know that it is >= 32 or < 32, without knowing the actual 134505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// shift amount. 134605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer:: 1347475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 1348475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt = N->getOperand(1); 134923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1350e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 13515b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned ShBits = ShTy.getScalarType().getSizeInBits(); 13525b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned NVTBits = NVT.getScalarType().getSizeInBits(); 135305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(isPowerOf2_32(NVTBits) && 135405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Expanded integer type size not a power of two!"); 1355786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1356cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 135705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt HighBitMask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 135805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt KnownZero, KnownOne; 135905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.ComputeMaskedBits(N->getOperand(1), HighBitMask, KnownZero, KnownOne); 1360cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 136105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we don't know anything about the high bits, exit. 136205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (((KnownZero|KnownOne) & HighBitMask) == 0) 136305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1364cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 136505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get the incoming operand to be shifted. 1366475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 136705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1368be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 136905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that any of the high bits of the shift amount are one, then we 137005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 137105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (KnownOne.intersects(HighBitMask)) { 137205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Mask out the high bit, which we know is set. 1373786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Amt = DAG.getNode(ISD::AND, dl, ShTy, Amt, 137405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(~HighBitMask, ShTy)); 137505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 137605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1377c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 137805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: 137905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); // Low part is zero. 1380786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 138105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 138205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 138305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // Hi part is zero. 1384786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 138505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 138605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: 1387786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 138805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1389786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 139005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 139105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 139205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 139305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 139428dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#if 0 139528dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman // FIXME: This code is broken for shifts with a zero amount! 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) { 139905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Compute 32-amt. 1400475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt2 = DAG.getNode(ISD::SUB, ShTy, 140105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits, ShTy), 140205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Amt); 140305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned Op1, Op2; 140405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1405c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 140605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: Op1 = ISD::SHL; Op2 = ISD::SRL; break; 140705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 140805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: Op1 = ISD::SRL; Op2 = ISD::SHL; break; 140905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 141005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 141105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getNode(N->getOpcode(), NVT, InL, Amt); 141205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getNode(ISD::OR, NVT, 141305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op1, NVT, InH, Amt), 141405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op2, NVT, InL, Amt2)); 141505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 141605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 141728dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#endif 141805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 141905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 142005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 142105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 14226fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// ExpandShiftWithUnknownAmountBit - Fully general expansion of integer shift 14236fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// of any size. 14246fb2168aaed06e4685d064b6f63dc4c668b42728Evan Chengbool DAGTypeLegalizer:: 14256fb2168aaed06e4685d064b6f63dc4c668b42728Evan ChengExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 14266fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Amt = N->getOperand(1); 142723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1428e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 14296fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng unsigned NVTBits = NVT.getSizeInBits(); 14306fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng assert(isPowerOf2_32(NVTBits) && 14316fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng "Expanded integer type size not a power of two!"); 14326fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DebugLoc dl = N->getDebugLoc(); 14336fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14346fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // Get the incoming operand to be shifted. 14356fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue InL, InH; 14366fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng GetExpandedInteger(N->getOperand(0), InL, InH); 14376fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14386fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue NVBitsNode = DAG.getConstant(NVTBits, ShTy); 14399993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtExcess = DAG.getNode(ISD::SUB, dl, ShTy, Amt, NVBitsNode); 14409993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtLack = DAG.getNode(ISD::SUB, dl, ShTy, NVBitsNode, Amt); 14419993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue isShort = DAG.getSetCC(dl, TLI.getSetCCResultType(ShTy), 14429993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Amt, NVBitsNode, ISD::SETULT); 14436fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14449993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue LoS, HiS, LoL, HiL; 14456fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng switch (N->getOpcode()) { 1446c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 14476fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SHL: 14489993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14499993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); 14509993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::OR, dl, NVT, 14516fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt), 145236236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 145336236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14549993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, AmtLack)); 14559993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14569993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14579993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getConstant(0, NVT); // Lo part is zero. 14589993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SHL, dl, NVT, InL, AmtExcess); // Hi from Lo part. 14596fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14609993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14619993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14626fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14636fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRL: 14649993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14659993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); 14669993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 14679993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 146836236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 146936236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14709993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 14719993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14729993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14739993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getConstant(0, NVT); // Hi part is zero. 14749993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRL, dl, NVT, InH, AmtExcess); // Lo from Hi part. 14759993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14769993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14779993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14786fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14796fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRA: 14809993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14819993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); 14829993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 14836fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 148436236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 148536236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14869993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 14879993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14889993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14899993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign of Hi part. 14909993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getConstant(NVTBits-1, ShTy)); 14919993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRA, dl, NVT, InH, AmtExcess); // Lo from Hi part. 14926fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14939993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14949993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14956fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14966fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 14976fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14986fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return false; 14996fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng} 15006fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 150105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUB(SDNode *N, 1502475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1503786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 150405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1505475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 150605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 150705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 150829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 1509e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHSL.getValueType(); 1510475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1511475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 151205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 151329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // Do not generate ADDC/ADDE or SUBC/SUBE if the target does not support 151429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // them. TODO: Teach operation legalization how to expand unsupported 151529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // ADDC/ADDE/SUBC/SUBE. The problem is that these operations generate 1516f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner // a carry of type MVT::Glue, but there doesn't seem to be any way to 151729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // generate a value of this type in the expanded code sequence. 151829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands bool hasCarry = 1519f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(N->getOpcode() == ISD::ADD ? 1520f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman ISD::ADDC : ISD::SUBC, 1521bc7a902713c4e3f13a93c383e647d2a18712f447Dan Gohman TLI.getTypeToExpandTo(*DAG.getContext(), NVT)); 152229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 152329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (hasCarry) { 1524f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 152529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1526786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 152729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1528786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 152929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1530786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 153129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1532786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 153329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 1534c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson return; 15355078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner } 1536c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson 15375078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner if (N->getOpcode() == ISD::ADD) { 15385078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::ADD, dl, NVT, LoOps, 2); 15395078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, HiOps, 2); 15405078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[0], 15415078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 15425078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry1 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp1, 15435078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 15445078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 15455078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[1], 15465078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 15475078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry2 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp2, 15485078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), Carry1); 15495078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, Carry2); 155005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 15515078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::SUB, dl, NVT, LoOps, 2); 15525078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, HiOps, 2); 15535078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp = 15545078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getSetCC(dl, TLI.getSetCCResultType(LoOps[0].getValueType()), 15555078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner LoOps[0], LoOps[1], ISD::SETULT); 15565078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Borrow = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, 15575078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 15585078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 15595078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, Hi, Borrow); 156005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 156105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 156205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 156305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBC(SDNode *N, 1564475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 156505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1566475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1567786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 156805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 156905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1570f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1571475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1572475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 157305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 157405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::ADDC) { 1575786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 157605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1577786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 157805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1579786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 158005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1581786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 158205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 158305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1584874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1585874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1586475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 158705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 158805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 158905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBE(SDNode *N, 1590475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 159105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1592475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1593786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 159405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 159505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1596f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1597475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, N->getOperand(2) }; 1598475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 159905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1600786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, VTList, LoOps, 3); 160105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1602786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, VTList, HiOps, 3); 160305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1604874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1605874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1606475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 160705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 1608fcd75e5efb482f35cfc22fd4b64e047930130fd6Eli Friedman 16094c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MERGE_VALUES(SDNode *N, unsigned ResNo, 1610fcd75e5efb482f35cfc22fd4b64e047930130fd6Eli Friedman SDValue &Lo, SDValue &Hi) { 16114c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands SDValue Res = DisintegrateMERGE_VALUES(N, ResNo); 161262bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman SplitInteger(Res, Lo, Hi); 161362bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman} 161405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 161505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ANY_EXTEND(SDNode *N, 1616475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 161723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1618786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1619475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 162005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 162105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The low part is any extension of the input (which degenerates to a copy). 1622786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ANY_EXTEND, dl, NVT, Op); 1623e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); // The high part is undefined. 162405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 162505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 162605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 162796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 162896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 162905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1630475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 163105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 163205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 163305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 163405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 163505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 163605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 163705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 163895db39a9de48f69f4d764335b492b83a698c7854Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertSext(SDNode *N, 1639475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1640786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 164195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1642e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1643e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 164495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned NVTBits = NVT.getSizeInBits(); 164595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned EVTBits = EVT.getSizeInBits(); 164695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 164795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands if (NVTBits < EVTBits) { 1648786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertSext, dl, NVT, Hi, 16494ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 16504ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng EVTBits - NVTBits))); 165195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } else { 1652786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertSext, dl, NVT, Lo, DAG.getValueType(EVT)); 165395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // The high part replicates the sign bit of Lo, make it explicit. 1654786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 165592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVTBits-1, TLI.getPointerTy())); 165695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } 165795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 165895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 165905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertZext(SDNode *N, 1660475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1661786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 166205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1663e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1664e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 166505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 166605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned EVTBits = EVT.getSizeInBits(); 166705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 166805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (NVTBits < EVTBits) { 1669786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertZext, dl, NVT, Hi, 1670285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 1671285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng EVTBits - NVTBits))); 167205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1673786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertZext, dl, NVT, Lo, DAG.getValueType(EVT)); 167405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part must be zero, make it explicit. 167505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 167605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 167705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 167805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 167905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_BSWAP(SDNode *N, 1680475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1681786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 168205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Hi, Lo); // Note swapped operands. 1683786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::BSWAP, dl, Lo.getValueType(), Lo); 1684786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::BSWAP, dl, Hi.getValueType(), Hi); 168505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 168605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 168705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Constant(SDNode *N, 1688475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 168923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 169005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NBitWidth = NVT.getSizeInBits(); 169105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const APInt &Cst = cast<ConstantSDNode>(N)->getAPIntValue(); 169240f8f6264d5af2c38e797e0dc59827cd231e8ff7Jay Foad Lo = DAG.getConstant(Cst.trunc(NBitWidth), NVT); 169305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(Cst.lshr(NBitWidth).trunc(NBitWidth), NVT); 169405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 169505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 169605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTLZ(SDNode *N, 1697475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1698786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 169905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctlz (HiLo) -> Hi != 0 ? ctlz(Hi) : (ctlz(Lo)+32) 170005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1701e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 170205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1703786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Hi, 1704ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 170505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1706786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Lo); 1707786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Hi); 170805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1709786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, HiNotZero, HiLZ, 1710786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, LoLZ, 171105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 171205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 171305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 171405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 171505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTPOP(SDNode *N, 1716475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1717786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 171805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctpop(HiLo) -> ctpop(Hi)+ctpop(Lo) 171905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1720e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1721b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, DAG.getNode(ISD::CTPOP, dl, NVT, Lo), 1722786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::CTPOP, dl, NVT, Hi)); 172305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 172405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 172505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 172605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTTZ(SDNode *N, 1727475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1728786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 172905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // cttz (HiLo) -> Lo != 0 ? cttz(Lo) : (cttz(Hi)+32) 173005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1731e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 173205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1733786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, 1734ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 173505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1736786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Lo); 1737786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Hi); 173805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1739786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, LoNotZero, LoLZ, 1740786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, HiLZ, 174105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 174205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 174305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 174405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1745475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo, 1746475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1747c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1748e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1749475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1750b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT); 1751be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!"); 1752c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, true/*irrelevant*/, dl), Lo, Hi); 1753ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1754ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 1755475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(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::getFPTOUINT(Op.getValueType(), VT); 1761be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 1762c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, false/*irrelevant*/, dl), Lo, Hi); 1763ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1764ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 176569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N, 1766475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1767ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalLoad(N)) { 1768ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands ExpandRes_NormalLoad(N, Lo, Hi); 176978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands return; 177078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands } 177178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 177278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 177378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1774e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 177523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1776475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 1777475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 1778cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::LoadExtType ExtType = N->getExtensionType(); 1779cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 1780cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 17811e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1782786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1783cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 178478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 1785cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 178678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 17878a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 1788cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1789a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 17901e559443a17d1b335f697551c6263ba60d5dd827David Greene MemVT, isVolatile, isNonTemporal, Alignment); 1791cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1792cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Remember the chain. 1793cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Ch = Lo.getValue(1); 1794cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1795cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExtType == ISD::SEXTLOAD) { 1796cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is obtained by SRA'ing all but one of the bits of the 1797cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // lo part. 179883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 1799786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 180092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 1801cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (ExtType == ISD::ZEXTLOAD) { 1802cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is just a zero. 1803cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = DAG.getConstant(0, NVT); 1804cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1805cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(ExtType == ISD::EXTLOAD && "Unknown extload!"); 1806cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is undefined. 1807e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); 1808cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1809cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 1810cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 1811ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getLoad(NVT, dl, Ch, Ptr, N->getPointerInfo(), 18121e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1813cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1814cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 181583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 181623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 1817cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1818cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 181983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1820786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 18210bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1822a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, 1823ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), NEVT, 18241e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 18251e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1826cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1827cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1828cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1829825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1830cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1831cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1832cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned loads at 1833cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 18348a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 18354e918b2c8ca81edd63f6708e08835b2c14648615Dan Gohman unsigned EBytes = MemVT.getStoreSize(); 183683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1837cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 1838cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1839cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load both the high bits and maybe some of the low bits. 1840a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 18418a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT::getIntegerVT(*DAG.getContext(), 18428a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman MemVT.getSizeInBits() - ExcessBits), 18431e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1844cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1845cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 1846786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 18470bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1848cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load the rest of the low bits. 1849a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr, 1850ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 185123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 18521e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 18531e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1854cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1855cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1856cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1857825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1858cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1859cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 186083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 1861cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer low bits from the bottom of Hi to the top of Lo. 1862786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, Lo, 1863786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, Hi, 1864cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 186592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 1866cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Move high bits to the right position in Hi. 18677fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ExtType == ISD::SEXTLOAD ? ISD::SRA : ISD::SRL, dl, 1868786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, Hi, 186983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 187092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 1871cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1872cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1873cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1874cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Legalized the chain result - switch anything that used the old chain to 1875cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // use the new one. 1876475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Ch); 1877cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1878cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 187969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Logical(SDNode *N, 1880475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1881786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1882475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 188369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 188469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 1885786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LL, RL); 1886786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LH, RH); 1887cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1888cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 188905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N, 1890475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1891e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 189223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1893c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 189469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1895f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, NVT); 1896f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, NVT); 1897f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, NVT); 1898f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, NVT); 1899cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 1900475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 190169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 190269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 190383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned OuterBitSize = VT.getSizeInBits(); 1904e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands unsigned InnerBitSize = NVT.getSizeInBits(); 1905cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned LHSSB = DAG.ComputeNumSignBits(N->getOperand(0)); 1906cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned RHSSB = DAG.ComputeNumSignBits(N->getOperand(1)); 190769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1908e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 1909e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (DAG.MaskedValueIsZero(N->getOperand(0), HighMask) && 1910e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands DAG.MaskedValueIsZero(N->getOperand(1), HighMask)) { 1911cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The inputs are both zero-extended. 1912cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1913cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a umul_lohi. 1914786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::UMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1915ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1916cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1917cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1918cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU) { 1919cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhu+mul. 1920786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1921786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1922cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1923cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1924cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1925e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 1926cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The input values are both sign-extended. 1927cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasSMUL_LOHI) { 1928cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a smul_lohi. 1929786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1930ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1931cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1932cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1933cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHS) { 1934cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhs+mul. 1935786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1936786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHS, dl, NVT, LL, RL); 1937cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1938cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1939cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1940cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1941cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Lo,Hi = umul LHS, RHS. 1942786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, dl, 1943cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getVTList(NVT, NVT), LL, RL); 1944cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Lo = UMulLOHI; 1945cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = UMulLOHI.getValue(1); 1946786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1947786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1948786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1949786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1950cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1951cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1952e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (HasMULHU) { 1953786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1954786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1955786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1956786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1957786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1958786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1959e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands return; 1960e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands } 1961cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 196241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1963cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If nothing else, we can make a libcall. 19645ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1965825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 196615c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::MUL_I16; 1967825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 19685ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I32; 1969825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 1970e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands LC = RTLIB::MUL_I64; 1971825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 19725ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I128; 19735ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"); 1974e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands 1975475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1976c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true/*irrelevant*/, dl), Lo, Hi); 197741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1978cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1979268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_SADDSUBO(SDNode *Node, 1980268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 1981268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = Node->getOperand(0); 1982268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = Node->getOperand(1); 1983268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = Node->getDebugLoc(); 1984268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1985268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 1986268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 1987268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(Node->getOpcode() == ISD::SADDO ? 1988268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 1989268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 1990268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 1991268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1992268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Compute the overflow. 1993268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1994268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // LHSSign -> LHS >= 0 1995268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // RHSSign -> RHS >= 0 1996268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // SumSign -> Sum >= 0 1997268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1998268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Add: 1999268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign == RHSSign) && (LHSSign != SumSign) 2000268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Sub: 2001268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign != RHSSign) && (LHSSign != SumSign) 2002268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 2003268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman EVT OType = Node->getValueType(1); 2004268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Zero = DAG.getConstant(0, LHS.getValueType()); 2005268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2006268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHSSign = DAG.getSetCC(dl, OType, LHS, Zero, ISD::SETGE); 2007268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHSSign = DAG.getSetCC(dl, OType, RHS, Zero, ISD::SETGE); 2008268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SignsMatch = DAG.getSetCC(dl, OType, LHSSign, RHSSign, 2009268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman Node->getOpcode() == ISD::SADDO ? 2010268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETEQ : ISD::SETNE); 2011268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2012268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSign = DAG.getSetCC(dl, OType, Sum, Zero, ISD::SETGE); 2013268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSignNE = DAG.getSetCC(dl, OType, LHSSign, SumSign, ISD::SETNE); 2014268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2015268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Cmp = DAG.getNode(ISD::AND, dl, OType, SignsMatch, SumSignNE); 2016268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2017268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2018268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(Node, 1), Cmp); 2019268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2020268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 202169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N, 2022475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2023e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2024c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 20255ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 20265ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2027825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2028a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SDIV_I16; 2029825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 20305ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I32; 2031825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 20325ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I64; 2033825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 20345ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I128; 20355ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!"); 20365ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 2037475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2038c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 2039ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 2040ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 204169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N, 2042475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2043e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2044c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 204569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 204669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // If we can emit an efficient shift operation, do so now. Check to see if 2047cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the RHS is a constant. 2048cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1))) 2049f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman return ExpandShiftByConstant(N, CN->getZExtValue(), Lo, Hi); 2050cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2051cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If we can determine that the high bit of the shift is zero or one, even if 2052cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the low bits are variable, emit this shift in an optimized form. 2053cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExpandShiftWithKnownAmountBit(N, Lo, Hi)) 2054cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 205569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2056cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this target supports shift_PARTS, use it. First, map to the _PARTS opc. 2057cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned PartsOpc; 205841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 2059cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SHL_PARTS; 206041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 2061cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRL_PARTS; 206241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 2063cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 2064cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRA_PARTS; 2065cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 206669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2067cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Next check to see if the target supports this SHL_PARTS operation or if it 2068cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // will custom expand it. 206923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2070cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::LegalizeAction Action = TLI.getOperationAction(PartsOpc, NVT); 2071cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 2072cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Action == TargetLowering::Custom) { 2073cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Expand the subcomponents. 2074475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 207569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 207669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2077475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, N->getOperand(1) }; 2078e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = LHSL.getValueType(); 2079fc1665793e62eb4f26d24b8a19eecf59cd872e2aDan Gohman Lo = DAG.getNode(PartsOpc, dl, DAG.getVTList(VT, VT), Ops, 3); 2080cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = Lo.getValue(1); 2081cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2082cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 208341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2084cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Otherwise, emit a libcall. 2085dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 208641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands bool isSigned; 208741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 208841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; /*sign irrelevant*/ 2089825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 209015c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SHL_I16; 2091825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2092dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I32; 2093825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2094dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I64; 2095825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2096dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I128; 209741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 209841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; 2099825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 210015c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRL_I16; 2101825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2102dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I32; 2103825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2104dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I64; 2105825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2106dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I128; 210741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 210841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 210941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = true; 2110825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 211115c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRA_I16; 2112825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2113dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I32; 2114825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2115dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I64; 2116825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2117dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I128; 211841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } 21198c899ee031481dbece5f111379a274c848cb5902Duncan Sands 21206fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (LC != RTLIB::UNKNOWN_LIBCALL && TLI.getLibcallName(LC)) { 21216fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 21226fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SplitInteger(MakeLibCall(LC, VT, Ops, 2, isSigned, dl), Lo, Hi); 21236fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return; 21246fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 212541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 21266fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (!ExpandShiftWithUnknownAmountBit(N, Lo, Hi)) 2127c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unsupported shift!"); 212841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 2129cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 213005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SIGN_EXTEND(SDNode *N, 2131475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 213223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2133786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2134475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 213505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2136b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is sign extension of the input (degenerates to a copy). 2137786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND, dl, NVT, N->getOperand(0)); 213805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part is obtained by SRA'ing all but one of the bits of low part. 213905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned LoSize = NVT.getSizeInBits(); 2140786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 214192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 214205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 214305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 214405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 214596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 214696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 214705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2148475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 214905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 215005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 215105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 215205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 215305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 215405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2155786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 2156285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 2157285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng ExcessBits))); 215805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 215905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 216005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 216105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer:: 2162475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi) { 2163786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 216469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 2165e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 2166d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 216705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (EVT.bitsLE(Lo.getValueType())) { 216805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the low part if needed. 2169786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Lo.getValueType(), Lo, 217005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(1)); 2171d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 217205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part gets the sign extension from the lo-part. This handles 217305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // things like sextinreg V:i64 from i8. 2174786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, Hi.getValueType(), Lo, 217505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Hi.getValueType().getSizeInBits()-1, 217692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 217705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 217805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. Leave the low part alone, 217905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the high part. 218005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 218105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands EVT.getSizeInBits() - Lo.getValueType().getSizeInBits(); 2182786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 218354e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 218454e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits))); 218505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 218605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2187d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 218805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N, 2189475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2190e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2191c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 219205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 219305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2194825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2195a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SREM_I16; 2196825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 219705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I32; 2198825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 219905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I64; 2200825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 220105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I128; 220205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!"); 220305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2204475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2205c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 2206d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2207d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 220805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N, 2209475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 221023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2211786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2212786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::TRUNCATE, dl, NVT, N->getOperand(0)); 2213786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, 2214786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getOperand(0).getValueType(), N->getOperand(0), 221592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVT.getSizeInBits(), TLI.getPointerTy())); 2216786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::TRUNCATE, dl, NVT, Hi); 2217d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2218d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2219268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_UADDSUBO(SDNode *N, 2220268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 2221268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = N->getOperand(0); 2222268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = N->getOperand(1); 2223268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = N->getDebugLoc(); 2224268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2225268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 2226268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 2227268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(N->getOpcode() == ISD::UADDO ? 2228268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 2229268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 2230268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 2231268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2232268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Calculate the overflow: addition overflows iff a + b < a, and subtraction 2233268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // overflows iff a - b > a. 2234268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Sum, LHS, 2235268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman N->getOpcode () == ISD::UADDO ? 2236268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETULT : ISD::SETUGT); 2237268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2238268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2239268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(N, 1), Ofl); 2240268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2241268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2242362fee90b9a1d64ac091755466caf6a94ade22ebEric Christophervoid DAGTypeLegalizer::ExpandIntRes_XMULO(SDNode *N, 2243362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue &Lo, SDValue &Hi) { 2244362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT VT = N->getValueType(0); 2245db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *RetTy = VT.getTypeForEVT(*DAG.getContext()); 2246362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT PtrVT = TLI.getPointerTy(); 2247db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *PtrTy = PtrVT.getTypeForEVT(*DAG.getContext()); 2248362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DebugLoc dl = N->getDebugLoc(); 2249362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2250a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // A divide for UMULO should be faster than a function call. 2251a3071455e540530ecb644a2e59098129f70ce705Eric Christopher if (N->getOpcode() == ISD::UMULO) { 2252a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 2253a3071455e540530ecb644a2e59098129f70ce705Eric Christopher DebugLoc DL = N->getDebugLoc(); 2254a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2255a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue MUL = DAG.getNode(ISD::MUL, DL, LHS.getValueType(), LHS, RHS); 2256a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SplitInteger(MUL, Lo, Hi); 2257a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2258a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // A divide for UMULO will be faster than a function call. Select to 2259a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // make sure we aren't using 0. 2260a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue isZero = DAG.getSetCC(dl, TLI.getSetCCResultType(VT), 2261a3071455e540530ecb644a2e59098129f70ce705Eric Christopher RHS, DAG.getConstant(0, VT), ISD::SETNE); 2262a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue NotZero = DAG.getNode(ISD::SELECT, dl, VT, isZero, 2263a3071455e540530ecb644a2e59098129f70ce705Eric Christopher DAG.getConstant(1, VT), RHS); 2264a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue DIV = DAG.getNode(ISD::UDIV, DL, LHS.getValueType(), MUL, NotZero); 2265a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue Overflow; 2266a3071455e540530ecb644a2e59098129f70ce705Eric Christopher Overflow = DAG.getSetCC(DL, N->getValueType(1), DIV, LHS, ISD::SETNE); 2267a3071455e540530ecb644a2e59098129f70ce705Eric Christopher ReplaceValueWith(SDValue(N, 1), Overflow); 2268a3071455e540530ecb644a2e59098129f70ce705Eric Christopher return; 2269a3071455e540530ecb644a2e59098129f70ce705Eric Christopher } 2270a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 22715e687ac6158bc28f1831699d7dbfa39d3120b892Eric Christopher // Replace this with a libcall that will check overflow. 2272362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2273362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher if (VT == MVT::i32) 2274362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I32; 2275362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher else if (VT == MVT::i64) 2276362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I64; 2277362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher else if (VT == MVT::i128) 2278362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I128; 2279362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported XMULO!"); 2280362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2281362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Temp = DAG.CreateStackTemporary(PtrVT); 2282362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Temporary for the overflow value, default it to zero. 2283362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Chain = DAG.getStore(DAG.getEntryNode(), dl, 2284362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DAG.getConstant(0, PtrVT), Temp, 2285362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher MachinePointerInfo(), false, false, 0); 2286362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2287362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TargetLowering::ArgListTy Args; 2288362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TargetLowering::ArgListEntry Entry; 2289362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { 2290362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT ArgVT = N->getOperand(i).getValueType(); 2291db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *ArgTy = ArgVT.getTypeForEVT(*DAG.getContext()); 2292362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Node = N->getOperand(i); 2293362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Ty = ArgTy; 2294362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isSExt = true; 2295362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isZExt = false; 2296362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Args.push_back(Entry); 2297362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher } 2298362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2299362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Also pass the address of the overflow check. 2300362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Node = Temp; 2301362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Ty = PtrTy->getPointerTo(); 2302362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isSExt = true; 2303362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isZExt = false; 2304362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Args.push_back(Entry); 2305362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2306362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Func = DAG.getExternalSymbol(TLI.getLibcallName(LC), PtrVT); 2307362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher std::pair<SDValue, SDValue> CallInfo = 2308362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TLI.LowerCallTo(Chain, RetTy, true, false, false, false, 2309362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 0, TLI.getLibcallCallingConv(LC), false, 2310362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher true, Func, Args, DAG, dl); 2311362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2312362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SplitInteger(CallInfo.first, Lo, Hi); 2313362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Temp2 = DAG.getLoad(PtrVT, dl, CallInfo.second, Temp, 2314362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher MachinePointerInfo(), false, false, 0); 2315362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Temp2, 2316362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DAG.getConstant(0, PtrVT), 2317362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher ISD::SETNE); 2318362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Use the overflow from the libcall everywhere. 2319362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher ReplaceValueWith(SDValue(N, 1), Ofl); 2320362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher} 2321362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 232205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N, 2323475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2324e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2325c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2326d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 232705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2328825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2329a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UDIV_I16; 2330825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 233105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I32; 2332825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 233305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I64; 2334825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 233505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I128; 233605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!"); 2337d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2338475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2339c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2340d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2341cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 234205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N, 2343475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2344e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2345c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 234669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 234705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2348825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2349a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UREM_I16; 2350825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 235105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I32; 2352825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 235305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I64; 2354825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 235505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I128; 235605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!"); 2357cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2358475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2359c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2360cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2361cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 236205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N, 2363475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 236423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2365786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2366475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 236705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2368b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is zero extension of the input (degenerates to a copy). 2369786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N->getOperand(0)); 237005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // The high part is just a zero. 237105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 237205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 237305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 237496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 237596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 237605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2377475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 237805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 237905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 238005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 238105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 238205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 238305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2384adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng Hi = DAG.getZeroExtendInReg(Hi, dl, 238554e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher EVT::getIntegerVT(*DAG.getContext(), 238654e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits)); 23879e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman } 2388cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2389cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2390ba567d670d32e102a70b106fbfe284835085cb3fEli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_ATOMIC_LOAD(SDNode *N, 2391ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue &Lo, SDValue &Hi) { 2392ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman DebugLoc dl = N->getDebugLoc(); 2393ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman EVT VT = cast<AtomicSDNode>(N)->getMemoryVT(); 2394ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Zero = DAG.getConstant(0, VT); 2395ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Swap = DAG.getAtomic(ISD::ATOMIC_CMP_SWAP, dl, VT, 2396ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(0), 2397ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(1), Zero, Zero, 2398ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemOperand(), 2399ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getOrdering(), 2400ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getSynchScope()); 2401ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman ReplaceValueWith(SDValue(N, 0), Swap.getValue(0)); 2402ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman ReplaceValueWith(SDValue(N, 1), Swap.getValue(1)); 2403ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman} 2404cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2405cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 240669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Operand Expansion 2407cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2408cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 240905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandIntegerOperand - This method is called when the specified operand of 241005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// the specified node is found to need expansion. At this point, all of the 241105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// result types of the node are known to be legal, but other operands of the 241205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// node may need promotion or expansion as well as the specified one. 241305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer::ExpandIntegerOperand(SDNode *N, unsigned OpNo) { 2414d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer operand: "; N->dump(&DAG); dbgs() << "\n"); 2415475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 2416051bb7b07504be9f848f7cce802e62ed24980bc5Duncan Sands 2417f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 2418bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 241911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands 2420bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 2421bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 242205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #ifndef NDEBUG 2423d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerOperand Op #" << OpNo << ": "; 2424d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 242505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #endif 2426c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand this operator's operand!"); 2427bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta 2428bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = ExpandOp_BITCAST(N); break; 242992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BR_CC: Res = ExpandIntOp_BR_CC(N); break; 243092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break; 2431bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break; 2432bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: Res = ExpandOp_INSERT_VECTOR_ELT(N); break; 2433bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SCALAR_TO_VECTOR: Res = ExpandOp_SCALAR_TO_VECTOR(N); break; 243492abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SELECT_CC: Res = ExpandIntOp_SELECT_CC(N); break; 243592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SETCC: Res = ExpandIntOp_SETCC(N); break; 243692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SINT_TO_FP: Res = ExpandIntOp_SINT_TO_FP(N); break; 243792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::STORE: Res = ExpandIntOp_STORE(cast<StoreSDNode>(N), OpNo); break; 243892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::TRUNCATE: Res = ExpandIntOp_TRUNCATE(N); break; 243992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::UINT_TO_FP: Res = ExpandIntOp_UINT_TO_FP(N); break; 244055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 244155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 244255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 244355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 244455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 24451c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::ROTR: Res = ExpandIntOp_Shift(N); break; 24461c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::RETURNADDR: 24471c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::FRAMEADDR: Res = ExpandIntOp_RETURNADDR(N); break; 2448ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2449ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman case ISD::ATOMIC_STORE: Res = ExpandIntOp_ATOMIC_STORE(N); break; 245005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 245169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 245205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If the result is null, the sub-method took care of registering results etc. 2453ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Res.getNode()) return false; 245447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 245547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 245647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 245747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 245805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 2459cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 246005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 246105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Invalid operand expansion"); 246205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2463475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 246405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 2465cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2466cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 246711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// IntegerExpandSetCCOperands - Expand the operands of a comparison. This code 246811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// is shared among BR_CC, SELECT_CC, and SETCC handlers. 2469475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::IntegerExpandSetCCOperands(SDValue &NewLHS, 2470475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &NewRHS, 2471c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen ISD::CondCode &CCCode, 2472c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl) { 2473475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 247469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewLHS, LHSLo, LHSHi); 247569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewRHS, RHSLo, RHSHi); 247641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2477cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (CCCode == ISD::SETEQ || CCCode == ISD::SETNE) { 247811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (RHSLo == RHSHi) { 247911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) { 2480cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (RHSCST->isAllOnesValue()) { 2481cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Equality comparison to -1. 24827fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands NewLHS = DAG.getNode(ISD::AND, dl, 2483786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHSLo.getValueType(), LHSLo, LHSHi); 2484cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSLo; 2485cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2486cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 248711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 248811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 248969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2490786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSLo, RHSLo); 2491786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewRHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSHi, RHSHi); 2492786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::OR, dl, NewLHS.getValueType(), NewLHS, NewRHS); 2493cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 2494cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2495cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 249669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2497cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this is a comparison of the sign bit, just look at the top part. 2498cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // X > -1, x < 0 2499cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(NewRHS)) 2500002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((CCCode == ISD::SETLT && CST->isNullValue()) || // X < 0 2501cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETGT && CST->isAllOnesValue())) { // X > -1 2502cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = LHSHi; 2503cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSHi; 2504cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2505cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 250669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2507cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // FIXME: This generated code sucks. 2508cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::CondCode LowCC; 2509cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (CCCode) { 2510c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer setcc!"); 2511cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLT: 2512cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULT: LowCC = ISD::SETULT; break; 2513cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGT: 2514cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2515cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLE: 2516cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULE: LowCC = ISD::SETULE; break; 2517cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGE: 2518cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2519cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 252069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2521cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2522cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2523cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 252469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2525cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // NOTE: on targets without efficient SELECT of bools, we can always use 2526cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 252778d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, true, NULL); 2528475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2; 25295480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo.getValueType()), 2530ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSLo, RHSLo, LowCC, false, DagCombineInfo, dl); 2531ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 2532786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()), 25335480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSLo, RHSLo, LowCC); 25345480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2535ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, CCCode, false, DagCombineInfo, dl); 2536ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 2537786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp2 = DAG.getNode(ISD::SETCC, dl, 2538786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(LHSHi.getValueType()), 25395480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, DAG.getCondCode(CCCode)); 254069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2541ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 2542ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 2543002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 2544002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 2545cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 2546cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 2547002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 2548cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 2549cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 2550cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // low part is known false, returns high part. 2551cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LE / GE, if high part is known false, ignore the low part. 2552cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LT / GT, if high part is known true, ignore the low part. 2553cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = Tmp2; 2554475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2555cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2556cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 255769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 25585480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands NewLHS = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2559fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel LHSHi, RHSHi, ISD::SETEQ, false, 2560ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen DagCombineInfo, dl); 2561ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!NewLHS.getNode()) 2562786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()), 25635480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, ISD::SETEQ); 2564786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::SELECT, dl, Tmp1.getValueType(), 2565cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS, Tmp1, Tmp2); 2566475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2567cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2568cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2569475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_BR_CC(SDNode *N) { 2570475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3); 257105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get(); 2572c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 257305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 257405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 257505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2576ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 257705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 257805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 257905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 258005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 258105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2582027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 258305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode), NewLHS, NewRHS, 2584027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(4)), 0); 258505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 258605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2587475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SELECT_CC(SDNode *N) { 2588475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 258905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get(); 2590c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 259105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 259205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 259305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2594ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 259505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 259605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 259705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 259805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 259905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2600027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 260105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(2), N->getOperand(3), 2602027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 260305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 260405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2605475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SETCC(SDNode *N) { 2606475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 260705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get(); 2608c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 260905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 261005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, use it. 2611ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 261205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(NewLHS.getValueType() == N->getValueType(0) && 261305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Unexpected setcc expansion!"); 261405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return NewLHS; 261505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 261605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 261705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, update N to have the operands specified. 2618027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 2619027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 262005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 262105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 262255467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::ExpandIntOp_Shift(SDNode *N) { 262355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // The value being shifted is legal, but the shift amount is too big. 262455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // It follows that either the result of the shift is undefined, or the 262555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // upper half of the shift amount is zero. Just use the lower half. 262655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta SDValue Lo, Hi; 262755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta GetExpandedInteger(N->getOperand(1), Lo, Hi); 2628027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Lo), 0); 262955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 263055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 26311c3436a67afcfaee5f972836ff1ffff2985adce1Anton KorobeynikovSDValue DAGTypeLegalizer::ExpandIntOp_RETURNADDR(SDNode *N) { 26321c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // The argument of RETURNADDR / FRAMEADDR builtin is 32 bit contant. This 26331c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // surely makes pretty nice problems on 8/16 bit targets. Just truncate this 26341c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // constant to valid type. 26351c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov SDValue Lo, Hi; 26361c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov GetExpandedInteger(N->getOperand(0), Lo, Hi); 2637027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, Lo), 0); 26381c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov} 26391c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov 2640475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) { 2641475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2642e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2643b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT); 264405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 264505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this SINT_TO_FP!"); 2646c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, N->getDebugLoc()); 264705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 264805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2649475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) { 2650ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalStore(N)) 2651ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands return ExpandOp_NormalStore(N, OpNo); 265278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 265378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 2654cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(OpNo == 1 && "Can only expand the stored value so far"); 2655cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2656e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getOperand(1).getValueType(); 265723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2658475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 2659475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 2660cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 2661cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 26621e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 2663786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2664475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2665cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2666a1ace76c70ae5332d6f33fce5c0c1e2fdb8cca11Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 2667cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 266878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 266969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2670ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 26711e559443a17d1b335f697551c6263ba60d5dd827David Greene N->getMemoryVT(), isVolatile, isNonTemporal, 26721e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 2673ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2674bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck 2675ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (TLI.isLittleEndian()) { 2676cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 267769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2678cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2679ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 26801e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 2681cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2682cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 268383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 268423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 2685cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2686cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 268783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2688786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 26890bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2690ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, 2691ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2692ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NEVT, isVolatile, isNonTemporal, 26931e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 2694825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2695ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2696cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2697ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Big-endian - high bits are at low addresses. Favor aligned stores at 2698ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // the cost of some bit-fiddling. 2699ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner GetExpandedInteger(N->getValue(), Lo, Hi); 2700ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2701ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT ExtVT = N->getMemoryVT(); 2702ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned EBytes = ExtVT.getStoreSize(); 2703ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned IncrementSize = NVT.getSizeInBits()/8; 2704ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 2705ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT HiVT = EVT::getIntegerVT(*DAG.getContext(), 2706ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner ExtVT.getSizeInBits() - ExcessBits); 2707ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2708ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (ExcessBits < NVT.getSizeInBits()) { 2709ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Transfer high bits from the top of Lo to the bottom of Hi. 2710ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::SHL, dl, NVT, Hi, 2711ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 2712ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy())); 2713ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::OR, dl, NVT, Hi, 2714ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getNode(ISD::SRL, dl, NVT, Lo, 2715ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(ExcessBits, 2716ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy()))); 2717cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2718ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2719ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store both the high bits and maybe some of the low bits. 2720ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getPointerInfo(), 2721ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner HiVT, isVolatile, isNonTemporal, Alignment); 2722ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2723ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Increment the pointer to the other half. 2724ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 2725ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getIntPtrConstant(IncrementSize)); 2726ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store the lowest ExcessBits bits in the second half. 2727ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getTruncStore(Ch, dl, Lo, Ptr, 2728ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2729ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 2730ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner isVolatile, isNonTemporal, 2731ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MinAlign(Alignment, IncrementSize)); 2732ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2733cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 273405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2735475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_TRUNCATE(SDNode *N) { 2736475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 273705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 273805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Just truncate the low part of the source. 2739786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), InL); 274005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 274105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 27428d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesenstatic const fltSemantics *EVTToAPFloatSemantics(EVT VT) { 27438d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen switch (VT.getSimpleVT().SimpleTy) { 27448d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen default: llvm_unreachable("Unknown FP format"); 27458d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f32: return &APFloat::IEEEsingle; 27468d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f64: return &APFloat::IEEEdouble; 27478d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f80: return &APFloat::x87DoubleExtended; 27488d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f128: return &APFloat::IEEEquad; 27498d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::ppcf128: return &APFloat::PPCDoubleDouble; 27508d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen } 27518d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen} 27528d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen 2753475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) { 2754475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2755e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SrcVT = Op.getValueType(); 2756e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2757c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 275805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 27598d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // The following optimization is valid only if every value in SrcVT (when 27608d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // treated as signed) is representable in DstVT. Check that the mantissa 27618d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // size of DstVT is >= than the number of bits in SrcVT -1. 27628d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen const fltSemantics *sem = EVTToAPFloatSemantics(DstVT); 27638d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen if (APFloat::semanticsPrecision(*sem) >= SrcVT.getSizeInBits()-1 && 27648d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen TLI.getOperationAction(ISD::SINT_TO_FP, SrcVT) == TargetLowering::Custom){ 276505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Do a signed conversion then adjust the result. 2766786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SignedConv = DAG.getNode(ISD::SINT_TO_FP, dl, DstVT, Op); 276705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SignedConv = TLI.LowerOperation(SignedConv, DAG); 276805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 276905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The result of the signed conversion needs adjusting if the 'sign bit' of 277005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // the incoming integer was set. To handle this, we dynamically test to see 277105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // if it is set, and, if so, add a fudge factor. 277205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 277305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE32 = 0x4F800000ULL; 277405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE64 = 0x5F800000ULL; 277505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE128 = 0x7F800000ULL; 277605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 277705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt FF(32, 0); 2778825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (SrcVT == MVT::i32) 277905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE32); 2780825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i64) 278105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE64); 2782825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i128) 278305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE128); 278405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else 278505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(false && "Unsupported UINT_TO_FP!"); 278605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 278705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Check whether the sign bit is set. 2788475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 278905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(Op, Lo, Hi); 27907fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue SignSet = DAG.getSetCC(dl, 2791786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(Hi.getValueType()), 27925480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Hi, DAG.getConstant(0, Hi.getValueType()), 2793ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands ISD::SETLT); 279405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 279505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Build a 64 bit pair (0, FF) in the constant pool, with FF in the lo bits. 2796001dbfebcbbded8c8e74b19e838b50da2b6c6fb5Owen Anderson SDValue FudgePtr = DAG.getConstantPool( 2797eed707b1e6097aac2bb6b3d47271f6300ace7f2eOwen Anderson ConstantInt::get(*DAG.getContext(), FF.zext(64)), 279849c18cce976c158e86f54c681dff21bb81640fb8Duncan Sands TLI.getPointerTy()); 279905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 280005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get a pointer to FF if the sign bit was set, or to 0 otherwise. 2801475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0); 2802475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Four = DAG.getIntPtrConstant(4); 280305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.isBigEndian()) std::swap(Zero, Four); 2804786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Offset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), SignSet, 2805ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands Zero, Four); 28061606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(FudgePtr)->getAlignment(); 2807786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen FudgePtr = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), FudgePtr, Offset); 280887a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 280905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 281005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Load the value out, extending it from f32 to the destination float type. 281105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // FIXME: Avoid the extend by constructing the right constant pool? 2812a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Fudge = DAG.getExtLoad(ISD::EXTLOAD, dl, DstVT, DAG.getEntryNode(), 28133d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner FudgePtr, 28143d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MachinePointerInfo::getConstantPool(), 28153d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MVT::f32, 28161e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, Alignment); 2817786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::FADD, dl, DstVT, SignedConv, Fudge); 281805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 281905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 282005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, use a libcall. 2821b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT); 282205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 282305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this UINT_TO_FP!"); 2824c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, dl); 282505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2826fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2827ba567d670d32e102a70b106fbfe284835085cb3fEli FriedmanSDValue DAGTypeLegalizer::ExpandIntOp_ATOMIC_STORE(SDNode *N) { 2828ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman DebugLoc dl = N->getDebugLoc(); 2829ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Swap = DAG.getAtomic(ISD::ATOMIC_SWAP, dl, 2830ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemoryVT(), 2831ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(0), 2832ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(1), N->getOperand(2), 2833ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemOperand(), 2834ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getOrdering(), 2835ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getSynchScope()); 2836ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman return Swap.getValue(1); 2837ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman} 2838ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2839ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2840fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N) { 2841fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue InOp0 = N->getOperand(0); 2842fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InVT = InOp0.getValueType(); 2843fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2844fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2845fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2846fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 28475b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem unsigned OutNumElems = OutVT.getVectorNumElements(); 2848fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2849fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2850fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2851fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue BaseIdx = N->getOperand(1); 2852fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2853fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 28545b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem Ops.reserve(OutNumElems); 2855fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != OutNumElems; ++i) { 2856fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2857fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract the element from the original vector. 2858fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Index = DAG.getNode(ISD::ADD, dl, BaseIdx.getValueType(), 2859fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem BaseIdx, DAG.getIntPtrConstant(i)); 2860fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2861fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem InVT.getVectorElementType(), N->getOperand(0), Index); 2862fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2863fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, Ext); 2864fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Insert the converted element to the new vector. 2865fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2866fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2867fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2868fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2869fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2870fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2871fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2872fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VECTOR_SHUFFLE(SDNode *N) { 2873fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem ShuffleVectorSDNode *SV = cast<ShuffleVectorSDNode>(N); 2874fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT VT = N->getValueType(0); 2875fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2876fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2877fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElts = VT.getVectorNumElements(); 2878fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<int, 8> NewMask; 2879fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElts; ++i) { 2880fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewMask.push_back(SV->getMaskElt(i)); 2881fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2882fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2883fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2884fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = GetPromotedInteger(N->getOperand(1)); 28855b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem EVT OutVT = V0.getValueType(); 2886fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 28875b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem return DAG.getVectorShuffle(OutVT, dl, V0, V1, &NewMask[0]); 2888fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2889fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2890fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2891fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_VECTOR(SDNode *N) { 2892fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2893fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2894fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2895fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElems = N->getNumOperands(); 2896fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2897fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2898fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2899fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2900fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 29015b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem Ops.reserve(NumElems); 2902fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElems; ++i) { 2903fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(i)); 2904fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2905fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2906fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2907fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2908fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2909fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2910fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_SCALAR_TO_VECTOR(SDNode *N) { 2911fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2912fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2913fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 29141396c403897e3d3e04fbf59f6c5fe77cbbab74a6Benjamin Kramer assert(!N->getOperand(0).getValueType().isVector() && 29151396c403897e3d3e04fbf59f6c5fe77cbbab74a6Benjamin Kramer "Input must be a scalar"); 2916fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2917fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2918fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2919fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2920fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2921fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2922fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(0)); 2923fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2924fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, NOutVT, Op); 2925fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2926fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2927c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_CONCAT_VECTORS(SDNode *N) { 2928c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2929c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2930c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem SDValue Op0 = N->getOperand(1); 2931c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem SDValue Op1 = N->getOperand(1); 2932c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem assert(Op0.getValueType() == Op1.getValueType() && 2933c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem "Invalid input vector types"); 2934c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2935c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT OutVT = N->getValueType(0); 2936c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2937c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2938c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2939c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT OutElemTy = NOutVT.getVectorElementType(); 2940c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2941c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem unsigned NumElem0 = Op0.getValueType().getVectorNumElements(); 2942c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem unsigned NumElem1 = Op1.getValueType().getVectorNumElements(); 2943c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem unsigned NumOutElem = NOutVT.getVectorNumElements(); 2944c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem assert(NumElem0 + NumElem1 == NumOutElem && 2945c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem "Invalid number of incoming elements"); 2946c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2947c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem // Take the elements from the first vector. 2948c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem SmallVector<SDValue, 8> Ops(NumOutElem); 2949c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem for (unsigned i = 0; i < NumElem0; ++i) { 2950c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2951c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem Op0.getValueType().getScalarType(), Op0, 2952c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem DAG.getIntPtrConstant(i)); 2953c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem Ops[i] = DAG.getNode(ISD::ANY_EXTEND, dl, OutElemTy, Ext); 2954c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem } 2955c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2956c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem // Take the elements from the second vector 2957c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem for (unsigned i = 0; i < NumElem1; ++i) { 2958c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2959c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem Op1.getValueType().getScalarType(), Op1, 2960c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem DAG.getIntPtrConstant(i)); 2961c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem Ops[i + NumElem0] = DAG.getNode(ISD::ANY_EXTEND, dl, OutElemTy, Ext); 2962c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem } 2963c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2964c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2965c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem} 2966c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2967fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_INSERT_VECTOR_ELT(SDNode *N) { 2968fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2969fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2970fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2971fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2972fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2973fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2974fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2975811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2976fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2977fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue ConvElem = DAG.getNode(ISD::ANY_EXTEND, dl, 2978fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NOutVTElem, N->getOperand(1)); 2979811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem return DAG.getNode(ISD::INSERT_VECTOR_ELT, dl, NOutVT, 29802ff4bc615584fa9f32e64959767d64f2cb09fb99Nadav Rotem V0, ConvElem, N->getOperand(2)); 2981fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2982fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2983fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N) { 2984fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2985fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2986fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = N->getOperand(1); 2987fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2988fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem V0->getValueType(0).getScalarType(), V0, V1); 2989fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 29900eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem // EXTRACT_VECTOR_ELT can return types which are wider than the incoming 29910eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem // element types (see PromoteIntRes_EXTRACT_VECTOR_ELT). If this is the case 29920eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem // then we need to expand the outgoing value and not truncate it. 29930eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem bool trunc = (N->getValueType(0).getSizeInBits() < 29940eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem Ext.getValueType().getSizeInBits()); 29950eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem return DAG.getNode(trunc ? ISD::TRUNCATE : ISD::ANY_EXTEND, 29960eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem dl, N->getValueType(0), Ext); 2997fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2998fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2999fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_CONCAT_VECTORS(SDNode *N) { 3000fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 3001811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem unsigned NumElems = N->getNumOperands(); 3002fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3003fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT RetSclrTy = N->getValueType(0).getVectorElementType(); 3004fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3005fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> NewOps; 3006811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem NewOps.reserve(NumElems); 3007fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3008fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // For each incoming vector 3009811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem for (unsigned VecIdx = 0; VecIdx != NumElems; ++VecIdx) { 3010fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Incoming = GetPromotedInteger(N->getOperand(VecIdx)); 3011fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT SclrTy = Incoming->getValueType(0).getVectorElementType(); 3012fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElem = Incoming->getValueType(0).getVectorNumElements(); 3013fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3014fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i=0; i<NumElem; ++i) { 3015fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract element from incoming vector 3016fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ex = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, SclrTy, 3017fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Incoming, DAG.getIntPtrConstant(i)); 3018fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Tr = DAG.getNode(ISD::TRUNCATE, dl, RetSclrTy, Ex); 3019fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewOps.push_back(Tr); 3020fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3021fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3022fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3023fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, N->getValueType(0), 3024fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem &NewOps[0], NewOps.size()); 3025fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3026