LegalizeIntegerTypes.cpp revision 2c8cf4b404e549482f593f62f9e27e0bab4a8b3f
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" 220b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/DerivedTypes.h" 237d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin#include "llvm/Support/ErrorHandling.h" 24fd87a544c00c2ca04ee23aae67bbcad4dc852a54Dan Gohman#include "llvm/Support/raw_ostream.h" 25cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattnerusing namespace llvm; 26cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 27cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Promotion 29cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 30cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 3169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteIntegerResult - This method is called when a result of a node is 3269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// found to be in need of promotion to a larger type. At this point, the node 3369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// may also have invalid operands or may have other results that need 3469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// expansion, we just know that (at least) one result needs promotion. 3569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) { 36d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer result: "; N->dump(&DAG); dbgs() << "\n"); 379fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SDValue Res = SDValue(); 3869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 39126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands // See if the target wants to custom expand this node. 40f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 411607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 42126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 4369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (N->getOpcode()) { 4469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 4569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#ifndef NDEBUG 46d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerResult #" << ResNo << ": "; 47d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 4869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#endif 49c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator!"); 504c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands case ISD::MERGE_VALUES:Res = PromoteIntRes_MERGE_VALUES(N, ResNo); break; 519fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertSext: Res = PromoteIntRes_AssertSext(N); break; 529fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertZext: Res = PromoteIntRes_AssertZext(N); break; 53bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntRes_BITCAST(N); break; 549fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BSWAP: Res = PromoteIntRes_BSWAP(N); break; 559fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BUILD_PAIR: Res = PromoteIntRes_BUILD_PAIR(N); break; 569fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::Constant: Res = PromoteIntRes_Constant(N); break; 5700ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang case ISD::CONVERT_RNDSAT: 589fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_CONVERT_RNDSAT(N); break; 5963974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth case ISD::CTLZ_ZERO_UNDEF: 609fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTLZ: Res = PromoteIntRes_CTLZ(N); break; 619fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTPOP: Res = PromoteIntRes_CTPOP(N); break; 6263974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth case ISD::CTTZ_ZERO_UNDEF: 639fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTTZ: Res = PromoteIntRes_CTTZ(N); break; 64bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ISD::EXTRACT_VECTOR_ELT: 659fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_EXTRACT_VECTOR_ELT(N); break; 669fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::LOAD: Res = PromoteIntRes_LOAD(cast<LoadSDNode>(N));break; 679fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT: Res = PromoteIntRes_SELECT(N); break; 68436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem case ISD::VSELECT: Res = PromoteIntRes_VSELECT(N); break; 699fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT_CC: Res = PromoteIntRes_SELECT_CC(N); break; 709fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SETCC: Res = PromoteIntRes_SETCC(N); break; 719fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SHL: Res = PromoteIntRes_SHL(N); break; 728d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands case ISD::SIGN_EXTEND_INREG: 739fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_SIGN_EXTEND_INREG(N); break; 749fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRA: Res = PromoteIntRes_SRA(N); break; 759fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRL: Res = PromoteIntRes_SRL(N); break; 769fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::TRUNCATE: Res = PromoteIntRes_TRUNCATE(N); break; 779fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UNDEF: Res = PromoteIntRes_UNDEF(N); break; 789fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::VAARG: Res = PromoteIntRes_VAARG(N); break; 79bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 80fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_SUBVECTOR: 81fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_EXTRACT_SUBVECTOR(N); break; 82fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::VECTOR_SHUFFLE: 83fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_VECTOR_SHUFFLE(N); break; 84fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::INSERT_VECTOR_ELT: 85fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_INSERT_VECTOR_ELT(N); break; 86fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::BUILD_VECTOR: 87fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_BUILD_VECTOR(N); break; 88fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::SCALAR_TO_VECTOR: 89fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Res = PromoteIntRes_SCALAR_TO_VECTOR(N); break; 90c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem case ISD::CONCAT_VECTORS: 91c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem Res = PromoteIntRes_CONCAT_VECTORS(N); break; 92fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 9369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SIGN_EXTEND: 9469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ZERO_EXTEND: 959fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::ANY_EXTEND: Res = PromoteIntRes_INT_EXTEND(N); break; 96bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 9769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: 989fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::FP_TO_UINT: Res = PromoteIntRes_FP_TO_XINT(N); break; 9969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 100927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP32_TO_FP16:Res = PromoteIntRes_FP32_TO_FP16(N); break; 101927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 10269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AND: 10369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::OR: 10469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::XOR: 10569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ADD: 10669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SUB: 1079fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::MUL: Res = PromoteIntRes_SimpleIntBinOp(N); break; 10869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SDIV: 1109fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SREM: Res = PromoteIntRes_SDIV(N); break; 11169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 11269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::UDIV: 1139fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UREM: Res = PromoteIntRes_UDIV(N); break; 1148ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 115253174bf50c932abaa680f465e2888c0e5272267Bill Wendling case ISD::SADDO: 1169fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SSUBO: Res = PromoteIntRes_SADDSUBO(N, ResNo); break; 11774c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::UADDO: 1189fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::USUBO: Res = PromoteIntRes_UADDSUBO(N, ResNo); break; 11974c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::SMULO: 1209fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UMULO: Res = PromoteIntRes_XMULO(N, ResNo); break; 121b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 122331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman case ISD::ATOMIC_LOAD: 123331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman Res = PromoteIntRes_Atomic0(cast<AtomicSDNode>(N)); break; 124331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 1250b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_ADD: 1260b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_SUB: 1270b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_AND: 1280b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_OR: 1290b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_XOR: 1300b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_NAND: 1310b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MIN: 1320b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MAX: 1330b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMIN: 1340b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMAX: 1350b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_SWAP: 1369fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic1(cast<AtomicSDNode>(N)); break; 137b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1380b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_CMP_SWAP: 1399fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic2(cast<AtomicSDNode>(N)); break; 14069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 14169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1429fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands // If the result is null then the sub-method took care of registering it. 1439fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (Res.getNode()) 1449fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SetPromotedInteger(SDValue(N, ResNo), Res); 14569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 14669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1474c19e12d28749c717d3b384962c9ec92796af1c9Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_MERGE_VALUES(SDNode *N, 1484c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands unsigned ResNo) { 1494c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands SDValue Op = DisintegrateMERGE_VALUES(N, ResNo); 15062bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman return GetPromotedInteger(Op); 15162bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman} 15262bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman 153475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertSext(SDNode *N) { 15495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Sign-extend the new bits, and continue the assertion. 155c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = SExtPromotedInteger(N->getOperand(0)); 156786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertSext, N->getDebugLoc(), 157786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 15895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 15995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 160475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertZext(SDNode *N) { 16195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Zero the new bits, and continue the assertion. 162c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 163786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertZext, N->getDebugLoc(), 164786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 16595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 16695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 167331120b1a482b782e8dffce63033bb8514ba2a96Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntRes_Atomic0(AtomicSDNode *N) { 168331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman EVT ResVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 169331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 170331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getMemoryVT(), ResVT, 171331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getChain(), N->getBasePtr(), 172331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getMemOperand(), N->getOrdering(), 173331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getSynchScope()); 174331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman // Legalized the chain result - switch anything that used the old chain to 175331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman // use the new one. 176331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 177331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman return Res; 178331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman} 179331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 180b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic1(AtomicSDNode *N) { 181b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 1827fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 183786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getMemoryVT(), 1840b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman N->getChain(), N->getBasePtr(), 18555ba816883842e793cdeb32fcb805c4e011b527fEli Friedman Op2, N->getMemOperand(), N->getOrdering(), 18655ba816883842e793cdeb32fcb805c4e011b527fEli Friedman N->getSynchScope()); 187b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 188b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 189b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 190b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 191b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 192b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 193b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic2(AtomicSDNode *N) { 194b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 195b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op3 = GetPromotedInteger(N->getOperand(3)); 196fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 197f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen N->getMemoryVT(), N->getChain(), N->getBasePtr(), 19855ba816883842e793cdeb32fcb805c4e011b527fEli Friedman Op2, Op3, N->getMemOperand(), N->getOrdering(), 19955ba816883842e793cdeb32fcb805c4e011b527fEli Friedman N->getSynchScope()); 200b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 201b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 202b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 203b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 204b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 205b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 206bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) { 207475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = N->getOperand(0); 208e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT InVT = InOp.getValueType(); 20923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 210e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OutVT = N->getValueType(0); 21123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 212786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 21369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 21469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (getTypeAction(InVT)) { 21596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 21669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 21796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 21844bac7cd659090f15face5171e3c346983aeb521Nadav Rotem if (NOutVT.bitsEq(NInVT) && !NOutVT.isVector() && !NInVT.isVector()) 21969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The input promotes to the same size. Convert the promoted value. 220bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetPromotedInteger(InOp)); 22169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 22296e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSoftenFloat: 22369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the integer operand by hand. 224786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, GetSoftenedFloat(InOp)); 22596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 22696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandFloat: 22769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 22896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeScalarizeVector: 22969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert the element to an integer and promote it by hand. 230c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem if (!NOutVT.isVector()) 231c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 232c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem BitConvertToInteger(GetScalarizedVector(InOp))); 233c2492c28ef04dbc77c5d47ec81ffc64c5407771fNadav Rotem break; 23496e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeSplitVector: { 235bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck // For example, i32 = BITCAST v2i16 on alpha. Convert the split 23669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // pieces of the input into integers and reassemble in the final type. 237475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 23869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetSplitVector(N->getOperand(0), Lo, Hi); 23969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Lo = BitConvertToInteger(Lo); 24069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Hi = BitConvertToInteger(Hi); 24169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 24269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 24369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 24469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 245786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen InOp = DAG.getNode(ISD::ANY_EXTEND, dl, 246adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT::getIntegerVT(*DAG.getContext(), 247adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng NOutVT.getSizeInBits()), 24869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands JoinIntegers(Lo, Hi)); 249bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp); 25069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 25196e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeWidenVector: 252819026f2f8b13ac7f6051727fce54b95868c3d85Nadav Rotem // The input is widened to the same size. Convert to the widened value. 253819026f2f8b13ac7f6051727fce54b95868c3d85Nadav Rotem // Make sure that the outgoing value is not a vector, because this would 254819026f2f8b13ac7f6051727fce54b95868c3d85Nadav Rotem // make us bitcast between two vectors which are legalized in different ways. 255819026f2f8b13ac7f6051727fce54b95868c3d85Nadav Rotem if (NOutVT.bitsEq(NInVT) && !NOutVT.isVector()) 256fbb6f593c264551a5d585a6c97ff03420b142ea3Nadav Rotem return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetWidenedVector(InOp)); 25787c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang } 25869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 259aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 260aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman CreateStackStoreLoad(InOp, OutVT)); 26169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 26269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 263475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BSWAP(SDNode *N) { 264475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 265e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 266e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 267786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 268c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 269c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 270786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, dl, NVT, DAG.getNode(ISD::BSWAP, dl, NVT, Op), 27153dfa78e4133f6cdb5d860279adc337ea099ac15Duncan Sands DAG.getConstant(DiffBits, TLI.getPointerTy())); 272c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands} 273c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 274475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_PAIR(SDNode *N) { 275bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The pair element type may be legal, or may not promote to the same type as 276bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // the result, for example i14 = BUILD_PAIR (i7, i7). Handle all cases. 277786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), 27854e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), 27954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getValueType(0)), JoinIntegers(N->getOperand(0), 28054e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getOperand(1))); 28169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 28269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 283475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_Constant(SDNode *N) { 284e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 285b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen // FIXME there is no actual debug info here 286b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 287bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Zero extend things like i1, sign extend everything else. It shouldn't 288bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // matter in theory which one we pick, but this tends to give better code? 289bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Opc = VT.isByteSized() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND; 29054e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher SDValue Result = DAG.getNode(Opc, dl, 29154e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), VT), 292a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands SDValue(N, 0)); 293bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(isa<ConstantSDNode>(Result) && "Didn't constant fold ext?"); 294bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Result; 29569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 29669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 29700ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P WangSDValue DAGTypeLegalizer::PromoteIntRes_CONVERT_RNDSAT(SDNode *N) { 29800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 29900ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 30000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 30100ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_SF || CvtCode == ISD::CVT_UF) && 30200ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang "can only promote integers"); 30323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT OutVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 304c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(OutVT, N->getDebugLoc(), N->getOperand(0), 30500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(1), N->getOperand(2), 30600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 30700ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang} 30800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang 309475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTLZ(SDNode *N) { 310c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands // Zero extend to the promoted type and do the count there. 311c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 312b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 313e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 314e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 31563974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth Op = DAG.getNode(N->getOpcode(), dl, NVT, Op); 31669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Subtract off the extra leading bits in the bigger type. 317b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen return DAG.getNode(ISD::SUB, dl, NVT, Op, 31869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DAG.getConstant(NVT.getSizeInBits() - 31969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands OVT.getSizeInBits(), NVT)); 32069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 32169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 322475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTPOP(SDNode *N) { 32369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Zero extend to the promoted type and do the count there. 324c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 325786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTPOP, N->getDebugLoc(), Op.getValueType(), Op); 32669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 32769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 328475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTTZ(SDNode *N) { 329475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 330e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 331e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 332786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 33363974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth if (N->getOpcode() == ISD::CTTZ) { 33463974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth // The count is the same in the promoted type except if the original 33563974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth // value was zero. This can be handled by setting the bit just off 33663974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth // the top of the original type. 33763974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth APInt TopBit(NVT.getSizeInBits(), 0); 33863974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth TopBit.setBit(OVT.getSizeInBits()); 33963974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth Op = DAG.getNode(ISD::OR, dl, NVT, Op, DAG.getConstant(TopBit, NVT)); 34063974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth } 34163974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth return DAG.getNode(N->getOpcode(), dl, NVT, Op); 34269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 34369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 344475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N) { 345786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 34623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 347c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NVT, N->getOperand(0), 348c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman N->getOperand(1)); 34969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 35069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 351475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_FP_TO_XINT(SDNode *N) { 35223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 353a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands unsigned NewOpc = N->getOpcode(); 354786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 355d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 3564c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // If we're promoting a UINT to a larger size and the larger FP_TO_UINT is 3574c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // not Legal, check to see if we can use FP_TO_SINT instead. (If both UINT 35854e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // and SINT conversions are Custom, there is no way to tell which is 35954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // preferable. We choose SINT because that's the right thing on PPC.) 360a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands if (N->getOpcode() == ISD::FP_TO_UINT && 3614c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 362f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NVT)) 363a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NewOpc = ISD::FP_TO_SINT; 364a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 365786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(NewOpc, dl, NVT, N->getOperand(0)); 366a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 367a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // Assert that the converted value fits in the original type. If it doesn't 368a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // (eg: because the value being converted is too big), then the result of the 369a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // original operation was undefined anyway, so the assert is still correct. 370a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands return DAG.getNode(N->getOpcode() == ISD::FP_TO_UINT ? 3710928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem ISD::AssertZext : ISD::AssertSext, dl, NVT, Res, 3720928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem DAG.getValueType(N->getValueType(0).getScalarType())); 373d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands} 374d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 375927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton KorobeynikovSDValue DAGTypeLegalizer::PromoteIntRes_FP32_TO_FP16(SDNode *N) { 376927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 377927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov DebugLoc dl = N->getDebugLoc(); 378927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 379927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov SDValue Res = DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 380927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 381927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov return DAG.getNode(ISD::AssertZext, dl, 382927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov NVT, Res, DAG.getValueType(N->getValueType(0))); 383927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov} 384927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 385475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_INT_EXTEND(SDNode *N) { 38623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 387786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 388be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 38996e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem if (getTypeAction(N->getOperand(0).getValueType()) 39096e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem == TargetLowering::TypePromoteInteger) { 391475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(N->getOperand(0)); 3926959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(Res.getValueType().bitsLE(NVT) && "Extension doesn't make sense!"); 393126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 394bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result and operand types are the same after promotion, simplify 395bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // to an in-register extension. 396bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (NVT == Res.getValueType()) { 397bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The high bits are not guaranteed to be anything. Insert an extend. 398bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::SIGN_EXTEND) 399786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 400bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DAG.getValueType(N->getOperand(0).getValueType())); 401bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::ZERO_EXTEND) 4020928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem return DAG.getZeroExtendInReg(Res, dl, 4030928c9e18a1decd856501beeea1bd12453a366b3Nadav Rotem N->getOperand(0).getValueType().getScalarType()); 404bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(N->getOpcode() == ISD::ANY_EXTEND && "Unknown integer extension!"); 405bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 406126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 40769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 40869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 409bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Otherwise, just extend the original operand all the way to the larger type. 410786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 411bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 41269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 413475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_LOAD(LoadSDNode *N) { 414bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 41523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 416bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::LoadExtType ExtType = 417bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::isNON_EXTLoad(N) ? ISD::EXTLOAD : N->getExtensionType(); 418786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 419a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Res = DAG.getExtLoad(ExtType, dl, NVT, N->getChain(), N->getBasePtr(), 4203d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner N->getPointerInfo(), 42147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getMemoryVT(), N->isVolatile(), 4221e559443a17d1b335f697551c6263ba60d5dd827David Greene N->isNonTemporal(), N->getAlignment()); 42369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 424bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Legalized the chain result - switch anything that used the old chain to 425bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 426475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 427bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 42869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 42969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 430874ae251c317788391f9c3f113957802d390a063Dale Johannesen/// Promote the overflow flag of an overflowing arithmetic node. 431ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Overflow(SDNode *N) { 432ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Simply change the return type of the boolean result. 43323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(1)); 434e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ValueVTs[] = { N->getValueType(0), NVT }; 435ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue Ops[] = { N->getOperand(0), N->getOperand(1) }; 436786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(N->getOpcode(), N->getDebugLoc(), 437786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getVTList(ValueVTs, 2), Ops, 2); 438ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 439ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Modified the sum result - switch anything that used the old sum to use 440ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the new one. 441ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 0), Res); 442ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 443ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return SDValue(Res.getNode(), 1); 444ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 445ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 446ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo) { 447ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 448ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 449ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 45094c22716d60ff5edf6a98a3c67e0faa001be1142Sylvestre Ledru // The operation overflowed iff the result in the larger type is not the 451ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // sign extension of its truncation to the original type. 452ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 453ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 454e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 455e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 456786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 457ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 458ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 459ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::SADDO ? ISD::ADD : ISD::SUB; 460786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 461ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 462ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: sign extend the arithmetic result from 463ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 464786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Ofl = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 465ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands DAG.getValueType(OVT)); 466ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 467786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 468ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 469ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 470ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 471ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 472ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 473ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 474ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 475475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SDIV(SDNode *N) { 476bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Sign extend the input. 477c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 478c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 479786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 480786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 48169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 483475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT(SDNode *N) { 484475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(1)); 485475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(2)); 486786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT, N->getDebugLoc(), 487786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0),LHS,RHS); 48869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 490436fe8498a0a3368d2690290e805213a0f114d0dNadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VSELECT(SDNode *N) { 4916059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem SDValue Mask = N->getOperand(0); 4926059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem EVT OpTy = N->getOperand(1).getValueType(); 4936059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem 4946059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem // Promote all the way up to the canonical SetCC type. 4956059b836959f4c1f1da651779d03d0de37f74a8fNadav Rotem Mask = PromoteTargetBoolean(Mask, TLI.getSetCCResultType(OpTy)); 496436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue LHS = GetPromotedInteger(N->getOperand(1)); 497436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem SDValue RHS = GetPromotedInteger(N->getOperand(2)); 498436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem return DAG.getNode(ISD::VSELECT, N->getDebugLoc(), 499436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem LHS.getValueType(), Mask, LHS, RHS); 500436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem} 501436fe8498a0a3368d2690290e805213a0f114d0dNadav Rotem 502475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT_CC(SDNode *N) { 503475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(2)); 504475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(3)); 505786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(), 506786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0), 507bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 50869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 50969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 510475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SETCC(SDNode *N) { 511e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = TLI.getSetCCResultType(N->getOperand(0).getValueType()); 51217e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem 51317e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 51417e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem 51517e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem // Only use the result of getSetCCResultType if it is legal, 51617e76bda552d5afa652c4bb45f6dbdad67dc5c20Nadav Rotem // otherwise just use the promoted result type (NVT). 517a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem if (!TLI.isTypeLegal(SVT)) 518a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem SVT = NVT; 51928b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands 520786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 52128b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(SVT.isVector() == N->getOperand(0).getValueType().isVector() && 52228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands "Vector compare must return a vector result!"); 5237e4982287591945c4e42ba8470a978e629789c76Duncan Sands 5247e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Get the SETCC result using the canonical SETCC type. 52528b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands SDValue SetCC = DAG.getNode(N->getOpcode(), dl, SVT, N->getOperand(0), 5267e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 5277e4982287591945c4e42ba8470a978e629789c76Duncan Sands 5286959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(NVT.bitsLE(SVT) && "Integer type overpromoted?"); 529a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem // Convert to the expected type. 530786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, NVT, SetCC); 53169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 53269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 533475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SHL(SDNode *N) { 534786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SHL, N->getDebugLoc(), 535182465c589f95ff165331d06035ec53ff05bf1f5Evan Cheng TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)), 536bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands GetPromotedInteger(N->getOperand(0)), N->getOperand(1)); 53769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 53869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 539475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N) { 540475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 541786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, N->getDebugLoc(), 542786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 5438d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands} 5448d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands 545475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SimpleIntBinOp(SDNode *N) { 546bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input may have strange things in the top bits of the registers, but 547bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // these operations don't care. They may have weird bits going out, but 548bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // that too is okay if they are integer operations. 549475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(0)); 550475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(1)); 551786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 552786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 55369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 55469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 555475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRA(SDNode *N) { 556bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly sign extended. 557c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Res = SExtPromotedInteger(N->getOperand(0)); 558786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRA, N->getDebugLoc(), 559786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res.getValueType(), Res, N->getOperand(1)); 560bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 56169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 562475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRL(SDNode *N) { 563bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly zero extended. 564e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 56523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 566475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = ZExtPromotedInteger(N->getOperand(0)); 567786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, N->getDebugLoc(), NVT, Res, N->getOperand(1)); 56869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 56969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 570475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_TRUNCATE(SDNode *N) { 57123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 572475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res; 5734720611025276f01b158a1522620391332ffdc32Nadav Rotem SDValue InOp = N->getOperand(0); 5744720611025276f01b158a1522620391332ffdc32Nadav Rotem DebugLoc dl = N->getDebugLoc(); 57569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 5764720611025276f01b158a1522620391332ffdc32Nadav Rotem switch (getTypeAction(InOp.getValueType())) { 577c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown type action!"); 57896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeLegal: 57996e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypeExpandInteger: 5804720611025276f01b158a1522620391332ffdc32Nadav Rotem Res = InOp; 581bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 58296e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem case TargetLowering::TypePromoteInteger: 5834720611025276f01b158a1522620391332ffdc32Nadav Rotem Res = GetPromotedInteger(InOp); 584bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 5854720611025276f01b158a1522620391332ffdc32Nadav Rotem case TargetLowering::TypeSplitVector: 5864720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT InVT = InOp.getValueType(); 5874720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(InVT.isVector() && "Cannot split scalar types"); 5884720611025276f01b158a1522620391332ffdc32Nadav Rotem unsigned NumElts = InVT.getVectorNumElements(); 5894720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(NumElts == NVT.getVectorNumElements() && 5904720611025276f01b158a1522620391332ffdc32Nadav Rotem "Dst and Src must have the same number of elements"); 5914720611025276f01b158a1522620391332ffdc32Nadav Rotem assert(isPowerOf2_32(NumElts) && 5924720611025276f01b158a1522620391332ffdc32Nadav Rotem "Promoted vector type must be a power of two"); 5934720611025276f01b158a1522620391332ffdc32Nadav Rotem 5945589a69f0abd39e583786515cf6c9170554dc8deNadav Rotem SDValue EOp1, EOp2; 5955589a69f0abd39e583786515cf6c9170554dc8deNadav Rotem GetSplitVector(InOp, EOp1, EOp2); 5965589a69f0abd39e583786515cf6c9170554dc8deNadav Rotem 5974720611025276f01b158a1522620391332ffdc32Nadav Rotem EVT HalfNVT = EVT::getVectorVT(*DAG.getContext(), NVT.getScalarType(), 5984720611025276f01b158a1522620391332ffdc32Nadav Rotem NumElts/2); 5994720611025276f01b158a1522620391332ffdc32Nadav Rotem EOp1 = DAG.getNode(ISD::TRUNCATE, dl, HalfNVT, EOp1); 6004720611025276f01b158a1522620391332ffdc32Nadav Rotem EOp2 = DAG.getNode(ISD::TRUNCATE, dl, HalfNVT, EOp2); 6014720611025276f01b158a1522620391332ffdc32Nadav Rotem 6024720611025276f01b158a1522620391332ffdc32Nadav Rotem return DAG.getNode(ISD::CONCAT_VECTORS, dl, NVT, EOp1, EOp2); 603bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands } 604bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 605bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate to NVT instead of VT 6064720611025276f01b158a1522620391332ffdc32Nadav Rotem return DAG.getNode(ISD::TRUNCATE, dl, NVT, Res); 60769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 60869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 609ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo) { 610ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 611ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 612ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 61394c22716d60ff5edf6a98a3c67e0faa001be1142Sylvestre Ledru // The operation overflowed iff the result in the larger type is not the 614ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // zero extension of its truncation to the original type. 615c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 616c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 617e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 618e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 619786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 62069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 621ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 622ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::UADDO ? ISD::ADD : ISD::SUB; 623786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 6248ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 625ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: zero extend the arithmetic result from 626ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 6274be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen SDValue Ofl = DAG.getZeroExtendInReg(Res, dl, OVT); 628ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 629786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 6308ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 631ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 632ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 6338ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 634ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 635ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 636ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 6375c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris LattnerSDValue DAGTypeLegalizer::PromoteIntRes_XMULO(SDNode *N, unsigned ResNo) { 6385c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Promote the overflow bit trivially. 6395c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (ResNo == 1) 6405c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return PromoteIntRes_Overflow(N); 641fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 6425c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 6435c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DebugLoc DL = N->getDebugLoc(); 644fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands EVT SmallVT = LHS.getValueType(); 645fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 646b3e009a165a423536acfa5861c12ef631239d9e4Eric Christopher // To determine if the result overflowed in a larger type, we extend the 64748da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // input to the larger type, do the multiply (checking if it overflows), 64848da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // then also check the high bits of the result to see if overflow happened 64948da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // there. 6505c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::SMULO) { 6515c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = SExtPromotedInteger(LHS); 6525c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = SExtPromotedInteger(RHS); 6535c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 6545c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = ZExtPromotedInteger(LHS); 6555c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = ZExtPromotedInteger(RHS); 6565c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 65748da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands SDVTList VTs = DAG.getVTList(LHS.getValueType(), N->getValueType(1)); 65848da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands SDValue Mul = DAG.getNode(N->getOpcode(), DL, VTs, LHS, RHS); 659fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 66048da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // Overflow occurred if it occurred in the larger type, or if the high part 66148da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // of the result does not zero/sign-extend the low part. Check this second 66248da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // possibility first. 6635c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Overflow; 6645c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::UMULO) { 66548da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // Unsigned overflow occurred if the high part is non-zero. 6665c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Hi = DAG.getNode(ISD::SRL, DL, Mul.getValueType(), Mul, 667fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands DAG.getIntPtrConstant(SmallVT.getSizeInBits())); 6685c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner Overflow = DAG.getSetCC(DL, N->getValueType(1), Hi, 6695c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DAG.getConstant(0, Hi.getValueType()), ISD::SETNE); 6705c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 67148da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // Signed overflow occurred if the high part does not sign extend the low. 672fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands SDValue SExt = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, Mul.getValueType(), 673fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Mul, DAG.getValueType(SmallVT)); 674fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Overflow = DAG.getSetCC(DL, N->getValueType(1), SExt, Mul, ISD::SETNE); 6755c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 6765c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 67748da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // The only other way for overflow to occur is if the multiplication in the 67848da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands // larger type itself overflowed. 67948da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands Overflow = DAG.getNode(ISD::OR, DL, N->getValueType(1), Overflow, 68048da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands SDValue(Mul.getNode(), 1)); 68148da0be8b5821dddbb5233ad9cb198369031684bDuncan Sands 6825c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Use the calculated overflow everywhere. 6835c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner ReplaceValueWith(SDValue(N, 1), Overflow); 6845c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return Mul; 6855c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner} 6865c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 687ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { 688ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Zero extend the input. 689ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 690ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 691786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 692786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 6938ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling} 6948ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 695475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_UNDEF(SDNode *N) { 69653f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng return DAG.getUNDEF(TLI.getTypeToTransformTo(*DAG.getContext(), 69753f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng N->getValueType(0))); 69869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 69969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 700475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_VAARG(SDNode *N) { 701475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = N->getOperand(0); // Get the chain. 702475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getOperand(1); // Get the pointer. 703e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 704786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 70569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 706dfcf33a287d1756721f1f735af687595ce2f5a21Patrik Hagglund MVT RegVT = TLI.getRegisterType(*DAG.getContext(), VT); 70723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson unsigned NumRegs = TLI.getNumRegisters(*DAG.getContext(), VT); 708d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // The argument is passed as NumRegs registers of type RegVT. 709d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 710d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands SmallVector<SDValue, 8> Parts(NumRegs); 711d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 0; i < NumRegs; ++i) { 712cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola Parts[i] = DAG.getVAArg(RegVT, dl, Chain, Ptr, N->getOperand(2), 713cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola N->getConstantOperandVal(3)); 714d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands Chain = Parts[i].getValue(1); 715d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 71669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 717d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Handle endianness of the load. 718d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands if (TLI.isBigEndian()) 719d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands std::reverse(Parts.begin(), Parts.end()); 72069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 721d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Assemble the parts in the promoted type. 72223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 723786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[0]); 724d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 1; i < NumRegs; ++i) { 725786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Part = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[i]); 726d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Shift it to the right position and "or" it in. 727786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Part = DAG.getNode(ISD::SHL, dl, NVT, Part, 728d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands DAG.getConstant(i * RegVT.getSizeInBits(), 72992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 730786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res = DAG.getNode(ISD::OR, dl, NVT, Res, Part); 731d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 73269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 733d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Modified the chain result - switch anything that used the old chain to 734bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 735d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands ReplaceValueWith(SDValue(N, 1), Chain); 736d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 737d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands return Res; 73869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 73969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 740bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 741bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands// Integer Operand Promotion 742bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 7437fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 744bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// PromoteIntegerOperand - This method is called when the specified operand of 745bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// the specified node is found to need promotion. At this point, all of the 746bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// result types of the node are known to be legal, but other operands of the 747bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// node may need promotion or expansion as well as the specified one. 748bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sandsbool DAGTypeLegalizer::PromoteIntegerOperand(SDNode *N, unsigned OpNo) { 749d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer operand: "; N->dump(&DAG); dbgs() << "\n"); 750475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 7517fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 752f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 753bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 75469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 755bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 756bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 757bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #ifndef NDEBUG 758d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerOperand Op #" << OpNo << ": "; 759d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 760bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #endif 761c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator's operand!"); 762bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 763bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ANY_EXTEND: Res = PromoteIntOp_ANY_EXTEND(N); break; 764331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman case ISD::ATOMIC_STORE: 765331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman Res = PromoteIntOp_ATOMIC_STORE(cast<AtomicSDNode>(N)); 766331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman break; 767bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntOp_BITCAST(N); break; 768bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BR_CC: Res = PromoteIntOp_BR_CC(N, OpNo); break; 769bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BRCOND: Res = PromoteIntOp_BRCOND(N, OpNo); break; 770bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_PAIR: Res = PromoteIntOp_BUILD_PAIR(N); break; 771bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_VECTOR: Res = PromoteIntOp_BUILD_VECTOR(N); break; 772fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::CONCAT_VECTORS: Res = PromoteIntOp_CONCAT_VECTORS(N); break; 773fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem case ISD::EXTRACT_VECTOR_ELT: Res = PromoteIntOp_EXTRACT_VECTOR_ELT(N); break; 774bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::CONVERT_RNDSAT: 775bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_CONVERT_RNDSAT(N); break; 776bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: 777bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_INSERT_VECTOR_ELT(N, OpNo);break; 778bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::MEMBARRIER: Res = PromoteIntOp_MEMBARRIER(N); break; 779aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang case ISD::SCALAR_TO_VECTOR: 780aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang Res = PromoteIntOp_SCALAR_TO_VECTOR(N); break; 78128b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands case ISD::VSELECT: 782bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT: Res = PromoteIntOp_SELECT(N, OpNo); break; 783bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT_CC: Res = PromoteIntOp_SELECT_CC(N, OpNo); break; 784bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SETCC: Res = PromoteIntOp_SETCC(N, OpNo); break; 785bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SIGN_EXTEND: Res = PromoteIntOp_SIGN_EXTEND(N); break; 786bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SINT_TO_FP: Res = PromoteIntOp_SINT_TO_FP(N); break; 787bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::STORE: Res = PromoteIntOp_STORE(cast<StoreSDNode>(N), 788bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta OpNo); break; 789bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::TRUNCATE: Res = PromoteIntOp_TRUNCATE(N); break; 790927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP16_TO_FP32: 791bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::UINT_TO_FP: Res = PromoteIntOp_UINT_TO_FP(N); break; 792bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ZERO_EXTEND: Res = PromoteIntOp_ZERO_EXTEND(N); break; 79355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 79455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 79555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 79655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 79755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 79855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = PromoteIntOp_Shift(N); break; 799bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta } 8009fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands 801bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result is null, the sub-method took care of registering results etc. 8029fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (!Res.getNode()) return false; 80347d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 80447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 80547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 80647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 807bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return true; 808bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 809bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 810bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands "Invalid operand expansion"); 811bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 812475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 813bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return false; 81469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 81569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 81669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteSetCCOperands - Promote the operands of a comparison. This code is 81769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// shared among BR_CC, SELECT_CC, and SETCC handlers. 818475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::PromoteSetCCOperands(SDValue &NewLHS,SDValue &NewRHS, 81969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands ISD::CondCode CCCode) { 820cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // We have to insert explicit sign or zero extends. Note that we could 821cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // insert sign extends for ALL conditions, but zero extend is cheaper on 822cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // many machines (an AND instead of two shifts), so prefer it. 82369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (CCCode) { 824c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer comparison!"); 82569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETEQ: 82669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETNE: 82769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGE: 82869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGT: 82969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULE: 83069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULT: 83169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // ALL of these operations will work if we either sign or zero extend 83269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the operands (including the unsigned comparisons!). Zero extend is 83369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // usually a simpler/cheaper operation, so prefer it. 834c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = ZExtPromotedInteger(NewLHS); 835c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = ZExtPromotedInteger(NewRHS); 83611ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 83769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGE: 83869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGT: 83969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLT: 84069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLE: 841c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = SExtPromotedInteger(NewLHS); 842c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = SExtPromotedInteger(NewRHS); 84311ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 84469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 84569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 84669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 847475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ANY_EXTEND(SDNode *N) { 848475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 849786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), N->getValueType(0), Op); 850bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 85169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 852331120b1a482b782e8dffce63033bb8514ba2a96Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntOp_ATOMIC_STORE(AtomicSDNode *N) { 853331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 854331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman return DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), N->getMemoryVT(), 855331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getChain(), N->getBasePtr(), Op2, N->getMemOperand(), 856331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman N->getOrdering(), N->getSynchScope()); 857331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman} 858331120b1a482b782e8dffce63033bb8514ba2a96Eli Friedman 859bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntOp_BITCAST(SDNode *N) { 86027759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // This should only occur in unusual situations like bitcasting to an 86127759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // x86_fp80, so just turn it into a store+load 86227759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman return CreateStackStoreLoad(N->getOperand(0), N->getValueType(0)); 86327759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman} 86427759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman 865475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo) { 866bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 2 && "Don't know how to promote this operand!"); 86769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 868475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(2); 869475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(3); 870bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(1))->get()); 87169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 872bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0), CC (#1) and basic block destination (Op#4) are always 873bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal types. 874027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 875027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), LHS, RHS, N->getOperand(4)), 876027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 877bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 878bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 879475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo) { 880bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 1 && "only know how to promote condition"); 881bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 882b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 883825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson EVT SVT = TLI.getSetCCResultType(MVT::Other); 884b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(1), SVT); 885bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 886bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0) and basic block destination (Op#2) are always legal types. 887027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Cond, 888027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 0); 889bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 890bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 891475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_PAIR(SDNode *N) { 892bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Since the result type is legal, the operands must promote to it. 893e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 894c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Lo = ZExtPromotedInteger(N->getOperand(0)); 895475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = GetPromotedInteger(N->getOperand(1)); 896bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Lo.getValueType() == N->getValueType(0) && "Operand over promoted?"); 897786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 898bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 899786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, N->getValueType(0), Hi, 90092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(OVT.getSizeInBits(), TLI.getPointerTy())); 901786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::OR, dl, N->getValueType(0), Lo, Hi); 90269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 90369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 904475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_VECTOR(SDNode *N) { 90569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The vector type is legal but the element type is not. This implies 90669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // that the vector is a power-of-two in length and that the element 90769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // type does not have a strange size (eg: it is not i1). 908e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VecVT = N->getValueType(0); 90969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned NumElts = VecVT.getVectorNumElements(); 91069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(NumElts & 1) && "Legal vector of one illegal element?"); 91169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 912b1303d05a89972195de023fda432cc621375a27cBob Wilson // Promote the inserted value. The type does not need to match the 913b1303d05a89972195de023fda432cc621375a27cBob Wilson // vector element type. Check that any extra bits introduced will be 914b1303d05a89972195de023fda432cc621375a27cBob Wilson // truncated away. 915b1303d05a89972195de023fda432cc621375a27cBob Wilson assert(N->getOperand(0).getValueType().getSizeInBits() >= 916b1303d05a89972195de023fda432cc621375a27cBob Wilson N->getValueType(0).getVectorElementType().getSizeInBits() && 917b1303d05a89972195de023fda432cc621375a27cBob Wilson "Type of inserted value narrower than vector element type!"); 91869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 919b1303d05a89972195de023fda432cc621375a27cBob Wilson SmallVector<SDValue, 16> NewOps; 920c885165e664f3b465403e1b6ce57ba63f57c5f0cBob Wilson for (unsigned i = 0; i < NumElts; ++i) 921b1303d05a89972195de023fda432cc621375a27cBob Wilson NewOps.push_back(GetPromotedInteger(N->getOperand(i))); 92269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 923027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, &NewOps[0], NumElts), 0); 92469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 92569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 92628088d3c049017a131aa7b07201c6e19c0227cefMon P WangSDValue DAGTypeLegalizer::PromoteIntOp_CONVERT_RNDSAT(SDNode *N) { 92728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 92828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 92928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 93028088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_FS || CvtCode == ISD::CVT_FU) && 93128088d3c049017a131aa7b07201c6e19c0227cefMon P Wang "can only promote integer arguments"); 93228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang SDValue InOp = GetPromotedInteger(N->getOperand(0)); 933c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(N->getValueType(0), N->getDebugLoc(), InOp, 93428088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(1), N->getOperand(2), 93528088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 93628088d3c049017a131aa7b07201c6e19c0227cefMon P Wang} 93728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang 938475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, 939475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned OpNo) { 94069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OpNo == 1) { 94169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the inserted value. This is valid because the type does not 94269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // have to match the vector element type. 94369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 94469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Check that any extra bits introduced will be truncated away. 94569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(N->getOperand(1).getValueType().getSizeInBits() >= 94669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getValueType(0).getVectorElementType().getSizeInBits() && 94769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Type of inserted value narrower than vector element type!"); 948027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 94969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetPromotedInteger(N->getOperand(1)), 950027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 951027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 95269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 95369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 95469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OpNo == 2 && "Different operand and result vector types?"); 95569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 95669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the index. 957c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Idx = ZExtPromotedInteger(N->getOperand(2)); 958027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 959027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), Idx), 0); 96069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 96169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 962475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_MEMBARRIER(SDNode *N) { 963475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewOps[6]; 9644be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 96569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewOps[0] = N->getOperand(0); 96669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 1; i < array_lengthof(NewOps); ++i) { 967475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag = GetPromotedInteger(N->getOperand(i)); 968825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson NewOps[i] = DAG.getZeroExtendInReg(Flag, dl, MVT::i1); 96969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 970027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewOps, array_lengthof(NewOps)), 0); 97169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 97269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 973aa9df0b0c3cef33514095bde2eedead986677955Mon P WangSDValue DAGTypeLegalizer::PromoteIntOp_SCALAR_TO_VECTOR(SDNode *N) { 974b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // Integer SCALAR_TO_VECTOR operands are implicitly truncated, so just promote 975b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // the operand in place. 976027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 977027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman GetPromotedInteger(N->getOperand(0))), 0); 978aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang} 979aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang 980475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT(SDNode *N, unsigned OpNo) { 98128b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands assert(OpNo == 0 && "Only know how to promote the condition!"); 98228b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands SDValue Cond = N->getOperand(0); 98328b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands EVT OpTy = N->getOperand(1).getValueType(); 9847e4982287591945c4e42ba8470a978e629789c76Duncan Sands 985b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 98628b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands EVT SVT = TLI.getSetCCResultType(N->getOpcode() == ISD::SELECT ? 98728b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands OpTy.getScalarType() : OpTy); 98828b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands Cond = PromoteTargetBoolean(Cond, SVT); 989bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 99028b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands return SDValue(DAG.UpdateNodeOperands(N, Cond, N->getOperand(1), 99128b77e968d2b01fc9da724762bd8ddcd80650e32Duncan Sands N->getOperand(2)), 0); 992bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 993bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 994475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo) { 995bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 996bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 997475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 998475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 999bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(4))->get()); 1000bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1001bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#4) and the possible return values (#2 and #3) have legal types. 1002027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2), 1003027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(3), N->getOperand(4)), 0); 1004bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1005bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1006475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SETCC(SDNode *N, unsigned OpNo) { 1007bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 1008bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1009475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 1010475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 1011bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get()); 1012bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1013bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#2) is always legal. 1014027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2)), 0); 1015bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1016bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 101755467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::PromoteIntOp_Shift(SDNode *N) { 1018027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 1019027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(1))), 0); 102055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 102155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 1022475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SIGN_EXTEND(SDNode *N) { 1023475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 1024786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1025786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 1026786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), 1027bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Op, DAG.getValueType(N->getOperand(0).getValueType())); 1028bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1029bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1030c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_SINT_TO_FP(SDNode *N) { 1031027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 1032027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SExtPromotedInteger(N->getOperand(0))), 0); 1033c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 1034c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 1035475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){ 1036bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 1037475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(), Ptr = N->getBasePtr(); 1038bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Alignment = N->getAlignment(); 1039bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands bool isVolatile = N->isVolatile(); 10401e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1041786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1042bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1043475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = GetPromotedInteger(N->getValue()); // Get promoted value. 1044bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1045bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate the value and store the result. 1046ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Val, Ptr, N->getPointerInfo(), 1047ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getMemoryVT(), 10481e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1049bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1050bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1051475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_TRUNCATE(SDNode *N) { 1052475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 1053786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), Op); 1054bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1055bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 1056c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_UINT_TO_FP(SDNode *N) { 1057027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 1058027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(0))), 0); 1059c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 1060c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 1061475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ZERO_EXTEND(SDNode *N) { 10624be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1063475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 10644be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 10658e614322498f9b38995a6bf41100ca617180eacbNadav Rotem return DAG.getZeroExtendInReg(Op, dl, 10668e614322498f9b38995a6bf41100ca617180eacbNadav Rotem N->getOperand(0).getValueType().getScalarType()); 1067bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 1068bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 106969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 107069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 107169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Expansion 107269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 107369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 107469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// ExpandIntegerResult - This method is called when the specified result of the 1075cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// specified node is found to need expansion. At this point, the node may also 1076cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// have invalid operands or may have other results that need promotion, we just 1077cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// know that (at least) one result needs expansion. 107869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) { 1079d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer result: "; N->dump(&DAG); dbgs() << "\n"); 1080475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 1081475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Lo = Hi = SDValue(); 1082cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1083cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // See if the target wants to custom expand this node. 1084f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 10851607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 1086cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1087cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (N->getOpcode()) { 1088cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: 1089cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#ifndef NDEBUG 1090d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerResult #" << ResNo << ": "; 1091d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 1092cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#endif 1093c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand the result of this operator!"); 109469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10954c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, ResNo, Lo, Hi); break; 109678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break; 109778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break; 109878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break; 109978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1100bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: ExpandRes_BITCAST(N, Lo, Hi); break; 110178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break; 11024a307ecce68f90e0eebf1ded52b947816cdc2304Duncan Sands case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break; 110378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break; 110421c2972f7d24680f6475877a3398b7f8cf515b33Duncan Sands case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break; 110578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 110669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ANY_EXTEND: ExpandIntRes_ANY_EXTEND(N, Lo, Hi); break; 110795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands case ISD::AssertSext: ExpandIntRes_AssertSext(N, Lo, Hi); break; 110869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AssertZext: ExpandIntRes_AssertZext(N, Lo, Hi); break; 110905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::BSWAP: ExpandIntRes_BSWAP(N, Lo, Hi); break; 111005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::Constant: ExpandIntRes_Constant(N, Lo, Hi); break; 111163974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth case ISD::CTLZ_ZERO_UNDEF: 111205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTLZ: ExpandIntRes_CTLZ(N, Lo, Hi); break; 111305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTPOP: ExpandIntRes_CTPOP(N, Lo, Hi); break; 111463974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth case ISD::CTTZ_ZERO_UNDEF: 111505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTTZ: ExpandIntRes_CTTZ(N, Lo, Hi); break; 111669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: ExpandIntRes_FP_TO_SINT(N, Lo, Hi); break; 111769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_UINT: ExpandIntRes_FP_TO_UINT(N, Lo, Hi); break; 111869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::LOAD: ExpandIntRes_LOAD(cast<LoadSDNode>(N), Lo, Hi); break; 111905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::MUL: ExpandIntRes_MUL(N, Lo, Hi); break; 112005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SDIV: ExpandIntRes_SDIV(N, Lo, Hi); break; 112105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND: ExpandIntRes_SIGN_EXTEND(N, Lo, Hi); break; 112205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND_INREG: ExpandIntRes_SIGN_EXTEND_INREG(N, Lo, Hi); break; 112305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SREM: ExpandIntRes_SREM(N, Lo, Hi); break; 112405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::TRUNCATE: ExpandIntRes_TRUNCATE(N, Lo, Hi); break; 112505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UDIV: ExpandIntRes_UDIV(N, Lo, Hi); break; 112605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UREM: ExpandIntRes_UREM(N, Lo, Hi); break; 112705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::ZERO_EXTEND: ExpandIntRes_ZERO_EXTEND(N, Lo, Hi); break; 1128ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman case ISD::ATOMIC_LOAD: ExpandIntRes_ATOMIC_LOAD(N, Lo, Hi); break; 112969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 11308d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_ADD: 11318d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_SUB: 11328d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_AND: 11338d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_OR: 11348d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_XOR: 11358d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_NAND: 11368d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MIN: 11378d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MAX: 11388d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMIN: 11398d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMAX: 11408d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_SWAP: { 11418d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher std::pair<SDValue, SDValue> Tmp = ExpandAtomic(N); 11428d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher SplitInteger(Tmp.first, Lo, Hi); 11438d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher ReplaceValueWith(SDValue(N, 1), Tmp.second); 11448d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher break; 11458d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher } 11468d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher 1147cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::AND: 1148cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::OR: 114905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::XOR: ExpandIntRes_Logical(N, Lo, Hi); break; 115005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1151cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADD: 115205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUB: ExpandIntRes_ADDSUB(N, Lo, Hi); break; 115305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1154cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDC: 115505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBC: ExpandIntRes_ADDSUBC(N, Lo, Hi); break; 115605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1157cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDE: 115805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBE: ExpandIntRes_ADDSUBE(N, Lo, Hi); break; 115905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1160cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SHL: 1161cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SRA: 116205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: ExpandIntRes_Shift(N, Lo, Hi); break; 1163268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1164268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SADDO: 1165268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SSUBO: ExpandIntRes_SADDSUBO(N, Lo, Hi); break; 1166268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::UADDO: 1167268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::USUBO: ExpandIntRes_UADDSUBO(N, Lo, Hi); break; 1168362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher case ISD::UMULO: 1169362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher case ISD::SMULO: ExpandIntRes_XMULO(N, Lo, Hi); break; 1170cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1171d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1172cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If Lo/Hi is null, the sub-method took care of registering results etc. 1173ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Lo.getNode()) 1174475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SetExpandedInteger(SDValue(N, ResNo), Lo, Hi); 1175cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1176cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 117793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher/// Lower an atomic node to the appropriate builtin call. 117893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopherstd::pair <SDValue, SDValue> DAGTypeLegalizer::ExpandAtomic(SDNode *Node) { 117993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher unsigned Opc = Node->getOpcode(); 118093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher MVT VT = cast<AtomicSDNode>(Node)->getMemoryVT().getSimpleVT(); 118193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher RTLIB::Libcall LC; 118293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 118393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (Opc) { 118493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: 118593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher llvm_unreachable("Unhandled atomic intrinsic Expand!"); 118693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_SWAP: 118793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 118893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 118993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_1; break; 119093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_2; break; 119193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_4; break; 119293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_8; break; 119393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 119493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 119593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_CMP_SWAP: 119693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 119793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 119893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1; break; 119993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2; break; 120093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4; break; 120193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8; break; 120293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 120393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 120493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_ADD: 120593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 120693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 120793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_ADD_1; break; 120893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_ADD_2; break; 120993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_ADD_4; break; 121093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_ADD_8; break; 121193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 121293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 121393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_SUB: 121493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 121593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 121693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_SUB_1; break; 121793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_SUB_2; break; 121893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_SUB_4; break; 121993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_SUB_8; break; 122093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 122193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 122293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_AND: 122393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 122493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 122593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_AND_1; break; 122693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_AND_2; break; 122793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_AND_4; break; 122893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_AND_8; break; 122993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 123093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 123193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_OR: 123293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 123393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 123493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_OR_1; break; 123593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_OR_2; break; 123693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_OR_4; break; 123793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_OR_8; break; 123893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 123993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 124093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_XOR: 124193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 124293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 124393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_XOR_1; break; 124493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_XOR_2; break; 124593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_XOR_4; break; 124693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_XOR_8; break; 124793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 124893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 124993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_NAND: 125093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 125193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 125293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_NAND_1; break; 125393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_NAND_2; break; 125493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_NAND_4; break; 125593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_NAND_8; break; 125693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 125793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 125893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 125993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 126093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher return ExpandChainLibCall(LC, Node, false); 126193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher} 126293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 126305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftByConstant - N is a shift by a value that needs to be expanded, 126405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// and the shift amount is a constant 'Amt'. Expand the operation. 126505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandShiftByConstant(SDNode *N, unsigned Amt, 1266475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1267e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DebugLoc DL = N->getDebugLoc(); 126805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the incoming operand to be shifted, so that we have its parts 1269475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 127005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1271cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1272e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = InL.getValueType(); 127305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned VTBits = N->getValueType(0).getSizeInBits(); 127405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 1275e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = N->getOperand(1).getValueType(); 1276cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 127705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SHL) { 127805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 127905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = Hi = DAG.getConstant(0, NVT); 128005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 128105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 1282e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SHL, DL, 1283915eeb488786379250808d47668c43e010efe566Chris Lattner NVT, InL, DAG.getConstant(Amt-NVTBits, ShTy)); 128405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 128505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 128605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = InL; 1287104de6cf7b80ec5e9beb502a069f376810a0a1e3Richard Osborne } else if (Amt == 1 && 1288f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::ADDC, 128954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToExpandTo(*DAG.getContext(), NVT))) { 129005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Emit this X << 1 as X+X. 1291f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 1292475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { InL, InL }; 1293e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::ADDC, DL, VTList, LoOps, 2); 1294475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { InH, InH, Lo.getValue(1) }; 1295e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::ADDE, DL, VTList, HiOps, 3); 129605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1297e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SHL, DL, NVT, InL, DAG.getConstant(Amt, ShTy)); 1298e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::OR, DL, NVT, 1299e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 130005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1301e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 130205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 130305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 130405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1305cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1306cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 130705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SRL) { 130805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 130905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 131005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 131105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1312e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRL, DL, 1313786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InH, DAG.getConstant(Amt-NVTBits,ShTy)); 131405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 131505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 131605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 131705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 131805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1319e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1320e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 132105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1322e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 132305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1324e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRL, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 132505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 132605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1327cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1328d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 132905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 133005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 1331e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 133205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 133305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1334e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 133505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt-NVTBits, ShTy)); 1336e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 133705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 133805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 133905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 1340e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 134105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1342d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } else { 1343e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1344e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 134505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1346e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 134705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1348e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 1349d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } 1350d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands} 1351d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 135205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftWithKnownAmountBit - Try to determine whether we can simplify 135305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// this shift based on knowledge of the high bit of the shift amount. If we 135405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// can tell this, we know that it is >= 32 or < 32, without knowing the actual 135505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// shift amount. 135605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer:: 1357475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 1358475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt = N->getOperand(1); 135923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1360e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 13615b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned ShBits = ShTy.getScalarType().getSizeInBits(); 13625b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned NVTBits = NVT.getScalarType().getSizeInBits(); 136305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(isPowerOf2_32(NVTBits) && 136405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Expanded integer type size not a power of two!"); 1365786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1366cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 136705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt HighBitMask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 136805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt KnownZero, KnownOne; 136926c8dcc692fb2addd475446cfff24d6a4e958bcaRafael Espindola DAG.ComputeMaskedBits(N->getOperand(1), KnownZero, KnownOne); 1370cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 137105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we don't know anything about the high bits, exit. 137205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (((KnownZero|KnownOne) & HighBitMask) == 0) 137305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1374cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 137505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get the incoming operand to be shifted. 1376475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 137705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1378be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 137905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that any of the high bits of the shift amount are one, then we 138005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 138105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (KnownOne.intersects(HighBitMask)) { 138205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Mask out the high bit, which we know is set. 1383786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Amt = DAG.getNode(ISD::AND, dl, ShTy, Amt, 138405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(~HighBitMask, ShTy)); 138505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 138605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1387c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 138805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: 138905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); // Low part is zero. 1390786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 139105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 139205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 139305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // Hi part is zero. 1394786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 139505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 139605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: 1397786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 139805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1399786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 140005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 140105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 140205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 140305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 140405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that all of the high bits of the shift amount are zero, then we 140505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 140605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if ((KnownZero & HighBitMask) == HighBitMask) { 14073bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer // Calculate 31-x. 31 is used instead of 32 to avoid creating an undefined 14083bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer // shift if x is zero. We can use XOR here because x is known to be smaller 1409a3b2121ccf4f048640b4d79689b0e4a3906143f2Benjamin Kramer // than 32. 14103bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer SDValue Amt2 = DAG.getNode(ISD::XOR, dl, ShTy, Amt, 14113bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer DAG.getConstant(NVTBits-1, ShTy)); 14123bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer 141305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned Op1, Op2; 141405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1415c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 141605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: Op1 = ISD::SHL; Op2 = ISD::SRL; break; 141705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 141805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: Op1 = ISD::SRL; Op2 = ISD::SHL; break; 141905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 142005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 14213bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer // When shifting right the arithmetic for Lo and Hi is swapped. 14223bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer if (N->getOpcode() != ISD::SHL) 14233bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer std::swap(InL, InH); 14243bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer 14253bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer // Use a little trick to get the bits that move from Lo to Hi. First 1426f1820b54e4d08ed78ca76b80b8bebb91cdc798a5Benjamin Kramer // shift by one bit. 1427f1820b54e4d08ed78ca76b80b8bebb91cdc798a5Benjamin Kramer SDValue Sh1 = DAG.getNode(Op2, dl, NVT, InL, DAG.getConstant(1, ShTy)); 1428f1820b54e4d08ed78ca76b80b8bebb91cdc798a5Benjamin Kramer // Then compute the remaining shift with amount-1. 1429f1820b54e4d08ed78ca76b80b8bebb91cdc798a5Benjamin Kramer SDValue Sh2 = DAG.getNode(Op2, dl, NVT, Sh1, Amt2); 14303bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer 14313bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer Lo = DAG.getNode(N->getOpcode(), dl, NVT, InL, Amt); 14323bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer Hi = DAG.getNode(ISD::OR, dl, NVT, DAG.getNode(Op1, dl, NVT, InH, Amt),Sh2); 14333bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer 14343bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer if (N->getOpcode() != ISD::SHL) 14353bf15ced2b91661ac314911c1f28332da0e1c37cBenjamin Kramer std::swap(Hi, Lo); 143605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 143705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 143805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 143905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 144005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 144105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 14426fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// ExpandShiftWithUnknownAmountBit - Fully general expansion of integer shift 14436fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// of any size. 14446fb2168aaed06e4685d064b6f63dc4c668b42728Evan Chengbool DAGTypeLegalizer:: 14456fb2168aaed06e4685d064b6f63dc4c668b42728Evan ChengExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 14466fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Amt = N->getOperand(1); 144723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1448e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 14496fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng unsigned NVTBits = NVT.getSizeInBits(); 14506fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng assert(isPowerOf2_32(NVTBits) && 14516fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng "Expanded integer type size not a power of two!"); 14526fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DebugLoc dl = N->getDebugLoc(); 14536fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14546fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // Get the incoming operand to be shifted. 14556fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue InL, InH; 14566fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng GetExpandedInteger(N->getOperand(0), InL, InH); 14576fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14586fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue NVBitsNode = DAG.getConstant(NVTBits, ShTy); 14599993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtExcess = DAG.getNode(ISD::SUB, dl, ShTy, Amt, NVBitsNode); 14609993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtLack = DAG.getNode(ISD::SUB, dl, ShTy, NVBitsNode, Amt); 14619993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue isShort = DAG.getSetCC(dl, TLI.getSetCCResultType(ShTy), 14629993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Amt, NVBitsNode, ISD::SETULT); 14636fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14649993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue LoS, HiS, LoL, HiL; 14656fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng switch (N->getOpcode()) { 1466c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 14676fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SHL: 14689993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14699993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); 14709993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::OR, dl, NVT, 14716fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt), 147236236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 147336236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14749993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, AmtLack)); 14759993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14769993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14779993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getConstant(0, NVT); // Lo part is zero. 14789993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SHL, dl, NVT, InL, AmtExcess); // Hi from Lo part. 14796fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 14809993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14819993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14826fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14836fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRL: 14849993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 14859993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); 14869993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 14879993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 148836236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 148936236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 14909993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 14919993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14929993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 14939993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getConstant(0, NVT); // Hi part is zero. 14949993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRL, dl, NVT, InH, AmtExcess); // Lo from Hi part. 14959993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 14969993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 14979993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 14986fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 14996fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRA: 15009993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 15019993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); 15029993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 15036fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 150436236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 150536236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 15069993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 15079993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 15089993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 15099993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign of Hi part. 15109993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getConstant(NVTBits-1, ShTy)); 15119993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRA, dl, NVT, InH, AmtExcess); // Lo from Hi part. 15126fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 15139993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 15149993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 15156fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 15166fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 15176fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng} 15186fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 151905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUB(SDNode *N, 1520475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1521786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 152205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1523475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 152405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 152505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 152629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 1527e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHSL.getValueType(); 1528475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1529475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 153005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 153129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // Do not generate ADDC/ADDE or SUBC/SUBE if the target does not support 153229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // them. TODO: Teach operation legalization how to expand unsupported 153329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // ADDC/ADDE/SUBC/SUBE. The problem is that these operations generate 1534f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner // a carry of type MVT::Glue, but there doesn't seem to be any way to 153529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // generate a value of this type in the expanded code sequence. 153629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands bool hasCarry = 1537f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(N->getOpcode() == ISD::ADD ? 1538f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman ISD::ADDC : ISD::SUBC, 1539bc7a902713c4e3f13a93c383e647d2a18712f447Dan Gohman TLI.getTypeToExpandTo(*DAG.getContext(), NVT)); 154029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 154129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (hasCarry) { 1542f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 154329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1544786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 154529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1546786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 154729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1548786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 154929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1550786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 155129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 1552c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson return; 15535078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner } 1554c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson 15555078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner if (N->getOpcode() == ISD::ADD) { 15565078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::ADD, dl, NVT, LoOps, 2); 15575078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, HiOps, 2); 15585078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[0], 15595078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 15605078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry1 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp1, 15615078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 15625078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 15635078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[1], 15645078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 15655078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry2 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp2, 15665078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), Carry1); 15675078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, Carry2); 156805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 15695078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::SUB, dl, NVT, LoOps, 2); 15705078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, HiOps, 2); 15715078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp = 15725078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getSetCC(dl, TLI.getSetCCResultType(LoOps[0].getValueType()), 15735078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner LoOps[0], LoOps[1], ISD::SETULT); 15745078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Borrow = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, 15755078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 15765078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 15775078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, Hi, Borrow); 157805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 157905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 158005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 158105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBC(SDNode *N, 1582475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 158305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1584475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1585786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 158605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 158705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1588f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1589475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1590475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 159105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 159205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::ADDC) { 1593786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 159405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1595786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 159605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1597786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 159805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1599786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 160005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 160105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1602874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1603874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1604475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 160505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 160605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 160705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBE(SDNode *N, 1608475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 160905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1610475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1611786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 161205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 161305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1614f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1615475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, N->getOperand(2) }; 1616475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 161705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1618786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, VTList, LoOps, 3); 161905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1620786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, VTList, HiOps, 3); 162105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1622874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1623874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1624475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 162505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 1626fcd75e5efb482f35cfc22fd4b64e047930130fd6Eli Friedman 16274c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MERGE_VALUES(SDNode *N, unsigned ResNo, 1628fcd75e5efb482f35cfc22fd4b64e047930130fd6Eli Friedman SDValue &Lo, SDValue &Hi) { 16294c19e12d28749c717d3b384962c9ec92796af1c9Duncan Sands SDValue Res = DisintegrateMERGE_VALUES(N, ResNo); 163062bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman SplitInteger(Res, Lo, Hi); 163162bb16cfd10dd271eab6c31d982bca4d79138602Eli Friedman} 163205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 163305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ANY_EXTEND(SDNode *N, 1634475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 163523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1636786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1637475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 163805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 163905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The low part is any extension of the input (which degenerates to a copy). 1640786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ANY_EXTEND, dl, NVT, Op); 1641e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); // The high part is undefined. 164205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 164305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 164405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 164596e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 164696e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 164705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1648475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 164905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 165005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 165105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 165205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 165305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 165405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 165505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 165695db39a9de48f69f4d764335b492b83a698c7854Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertSext(SDNode *N, 1657475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1658786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 165995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1660e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1661e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 166295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned NVTBits = NVT.getSizeInBits(); 166395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned EVTBits = EVT.getSizeInBits(); 166495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 166595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands if (NVTBits < EVTBits) { 1666786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertSext, dl, NVT, Hi, 16674ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 16684ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng EVTBits - NVTBits))); 166995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } else { 1670786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertSext, dl, NVT, Lo, DAG.getValueType(EVT)); 167195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // The high part replicates the sign bit of Lo, make it explicit. 1672786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 167392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVTBits-1, TLI.getPointerTy())); 167495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } 167595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 167695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 167705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertZext(SDNode *N, 1678475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1679786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 168005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1681e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1682e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 168305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 168405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned EVTBits = EVT.getSizeInBits(); 168505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 168605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (NVTBits < EVTBits) { 1687786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertZext, dl, NVT, Hi, 1688285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 1689285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng EVTBits - NVTBits))); 169005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1691786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertZext, dl, NVT, Lo, DAG.getValueType(EVT)); 169205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part must be zero, make it explicit. 169305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 169405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 169505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 169605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 169705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_BSWAP(SDNode *N, 1698475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1699786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 170005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Hi, Lo); // Note swapped operands. 1701786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::BSWAP, dl, Lo.getValueType(), Lo); 1702786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::BSWAP, dl, Hi.getValueType(), Hi); 170305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 170405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 170505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Constant(SDNode *N, 1706475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 170723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 170805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NBitWidth = NVT.getSizeInBits(); 170905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const APInt &Cst = cast<ConstantSDNode>(N)->getAPIntValue(); 171040f8f6264d5af2c38e797e0dc59827cd231e8ff7Jay Foad Lo = DAG.getConstant(Cst.trunc(NBitWidth), NVT); 171105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(Cst.lshr(NBitWidth).trunc(NBitWidth), NVT); 171205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 171305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 171405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTLZ(SDNode *N, 1715475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1716786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 171705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctlz (HiLo) -> Hi != 0 ? ctlz(Hi) : (ctlz(Lo)+32) 171805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1719e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 172005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1721786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Hi, 1722ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 172305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 172463974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth SDValue LoLZ = DAG.getNode(N->getOpcode(), dl, NVT, Lo); 172563974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth SDValue HiLZ = DAG.getNode(ISD::CTLZ_ZERO_UNDEF, dl, NVT, Hi); 172605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1727786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, HiNotZero, HiLZ, 1728786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, LoLZ, 172905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 173005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 173105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 173205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 173305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTPOP(SDNode *N, 1734475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1735786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 173605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctpop(HiLo) -> ctpop(Hi)+ctpop(Lo) 173705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1738e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1739b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, DAG.getNode(ISD::CTPOP, dl, NVT, Lo), 1740786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::CTPOP, dl, NVT, Hi)); 174105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 174205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 174305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 174405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTTZ(SDNode *N, 1745475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1746786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 174705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // cttz (HiLo) -> Lo != 0 ? cttz(Lo) : (cttz(Hi)+32) 174805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1749e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 175005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1751786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, 1752ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 175305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 175463974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth SDValue LoLZ = DAG.getNode(ISD::CTTZ_ZERO_UNDEF, dl, NVT, Lo); 175563974b2144c87c962effdc0508c27643c8ad98b6Chandler Carruth SDValue HiLZ = DAG.getNode(N->getOpcode(), dl, NVT, Hi); 175605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1757786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, LoNotZero, LoLZ, 1758786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, HiLZ, 175905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 176005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 176105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 176205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1763475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo, 1764475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1765c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1766e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1767475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1768b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT); 1769be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!"); 17702c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover SplitInteger(TLI.makeLibCall(DAG, LC, VT, &Op, 1, true/*irrelevant*/, dl), 17712c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover Lo, Hi); 1772ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1773ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 1774475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo, 1775475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1776c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1777e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1778475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1779b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Op.getValueType(), VT); 1780be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 17812c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover SplitInteger(TLI.makeLibCall(DAG, LC, VT, &Op, 1, false/*irrelevant*/, dl), 17822c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover Lo, Hi); 1783ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1784ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 178569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N, 1786475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1787ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalLoad(N)) { 1788ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands ExpandRes_NormalLoad(N, Lo, Hi); 178978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands return; 179078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands } 179178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 179278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 179378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1794e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 179523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1796475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 1797475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 1798cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::LoadExtType ExtType = N->getExtensionType(); 1799cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 1800cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 18011e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1802d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper bool isInvariant = N->isInvariant(); 1803786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1804cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 180578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 1806cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 180778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 18088a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 1809cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1810a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 18111e559443a17d1b335f697551c6263ba60d5dd827David Greene MemVT, isVolatile, isNonTemporal, Alignment); 1812cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1813cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Remember the chain. 1814cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Ch = Lo.getValue(1); 1815cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1816cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExtType == ISD::SEXTLOAD) { 1817cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is obtained by SRA'ing all but one of the bits of the 1818cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // lo part. 181983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 1820786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 182192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 1822cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (ExtType == ISD::ZEXTLOAD) { 1823cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is just a zero. 1824cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = DAG.getConstant(0, NVT); 1825cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1826cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(ExtType == ISD::EXTLOAD && "Unknown extload!"); 1827cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is undefined. 1828e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); 1829cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1830cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 1831cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 1832ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getLoad(NVT, dl, Ch, Ptr, N->getPointerInfo(), 1833d752e0f7e64585839cb3a458ef52456eaebbea3cPete Cooper isVolatile, isNonTemporal, isInvariant, Alignment); 1834cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1835cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 183683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 183723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 1838cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1839cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 184083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1841786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 18420bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1843a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, 1844ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), NEVT, 18451e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 18461e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1847cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1848cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1849cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1850825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1851cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1852cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1853cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned loads at 1854cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 18558a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 18564e918b2c8ca81edd63f6708e08835b2c14648615Dan Gohman unsigned EBytes = MemVT.getStoreSize(); 185783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1858cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 1859cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1860cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load both the high bits and maybe some of the low bits. 1861a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 18628a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT::getIntegerVT(*DAG.getContext(), 18638a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman MemVT.getSizeInBits() - ExcessBits), 18641e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1865cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1866cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 1867786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 18680bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1869cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load the rest of the low bits. 1870a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr, 1871ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 187223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 18731e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 18741e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1875cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1876cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1877cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1878825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1879cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1880cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 188183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 1882cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer low bits from the bottom of Hi to the top of Lo. 1883786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, Lo, 1884786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, Hi, 1885cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 188692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 1887cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Move high bits to the right position in Hi. 18887fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ExtType == ISD::SEXTLOAD ? ISD::SRA : ISD::SRL, dl, 1889786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, Hi, 189083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 189192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 1892cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1893cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1894cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1895cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Legalized the chain result - switch anything that used the old chain to 1896cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // use the new one. 1897475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Ch); 1898cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1899cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 190069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Logical(SDNode *N, 1901475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1902786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1903475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 190469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 190569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 1906786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LL, RL); 1907786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LH, RH); 1908cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1909cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 191005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N, 1911475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1912e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 191323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1914c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 191569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1916f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, NVT); 1917f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, NVT); 1918f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, NVT); 1919f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, NVT); 1920cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 1921475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 192269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 192369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 192483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned OuterBitSize = VT.getSizeInBits(); 1925e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands unsigned InnerBitSize = NVT.getSizeInBits(); 1926cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned LHSSB = DAG.ComputeNumSignBits(N->getOperand(0)); 1927cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned RHSSB = DAG.ComputeNumSignBits(N->getOperand(1)); 192869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1929e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 1930e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (DAG.MaskedValueIsZero(N->getOperand(0), HighMask) && 1931e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands DAG.MaskedValueIsZero(N->getOperand(1), HighMask)) { 1932cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The inputs are both zero-extended. 1933cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1934cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a umul_lohi. 1935786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::UMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1936ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1937cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1938cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1939cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU) { 1940cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhu+mul. 1941786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1942786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1943cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1944cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1945cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1946e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 1947cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The input values are both sign-extended. 1948cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasSMUL_LOHI) { 1949cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a smul_lohi. 1950786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1951ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1952cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1953cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1954cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHS) { 1955cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhs+mul. 1956786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1957786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHS, dl, NVT, LL, RL); 1958cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1959cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1960cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1961cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1962cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Lo,Hi = umul LHS, RHS. 1963786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, dl, 1964cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getVTList(NVT, NVT), LL, RL); 1965cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Lo = UMulLOHI; 1966cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = UMulLOHI.getValue(1); 1967786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1968786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1969786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1970786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1971cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1972cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1973e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (HasMULHU) { 1974786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1975786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1976786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1977786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1978786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1979786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1980e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands return; 1981e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands } 1982cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 198341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1984cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If nothing else, we can make a libcall. 19855ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1986825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 198715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::MUL_I16; 1988825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 19895ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I32; 1990825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 1991e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands LC = RTLIB::MUL_I64; 1992825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 19935ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I128; 19945ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"); 1995e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands 1996475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 19972c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, true/*irrelevant*/, dl), 19982c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover Lo, Hi); 199941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 2000cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2001268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_SADDSUBO(SDNode *Node, 2002268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 2003268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = Node->getOperand(0); 2004268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = Node->getOperand(1); 2005268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = Node->getDebugLoc(); 2006268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2007268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 2008268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 2009268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(Node->getOpcode() == ISD::SADDO ? 2010268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 2011268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 2012268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 2013268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2014268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Compute the overflow. 2015268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 2016268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // LHSSign -> LHS >= 0 2017268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // RHSSign -> RHS >= 0 2018268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // SumSign -> Sum >= 0 2019268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 2020268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Add: 2021268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign == RHSSign) && (LHSSign != SumSign) 2022268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Sub: 2023268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign != RHSSign) && (LHSSign != SumSign) 2024268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 2025268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman EVT OType = Node->getValueType(1); 2026268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Zero = DAG.getConstant(0, LHS.getValueType()); 2027268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2028268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHSSign = DAG.getSetCC(dl, OType, LHS, Zero, ISD::SETGE); 2029268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHSSign = DAG.getSetCC(dl, OType, RHS, Zero, ISD::SETGE); 2030268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SignsMatch = DAG.getSetCC(dl, OType, LHSSign, RHSSign, 2031268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman Node->getOpcode() == ISD::SADDO ? 2032268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETEQ : ISD::SETNE); 2033268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2034268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSign = DAG.getSetCC(dl, OType, Sum, Zero, ISD::SETGE); 2035268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSignNE = DAG.getSetCC(dl, OType, LHSSign, SumSign, ISD::SETNE); 2036268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2037268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Cmp = DAG.getNode(ISD::AND, dl, OType, SignsMatch, SumSignNE); 2038268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2039268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2040268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(Node, 1), Cmp); 2041268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2042268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 204369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N, 2044475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2045e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2046c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 20475ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 20485ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2049825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2050a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SDIV_I16; 2051825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 20525ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I32; 2053825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 20545ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I64; 2055825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 20565ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I128; 20575ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!"); 20585ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 2059475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 20602c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, true, dl), Lo, Hi); 2061ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 2062ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 206369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N, 2064475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2065e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2066c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 206769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 206869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // If we can emit an efficient shift operation, do so now. Check to see if 2069cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the RHS is a constant. 2070cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1))) 2071f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman return ExpandShiftByConstant(N, CN->getZExtValue(), Lo, Hi); 2072cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2073cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If we can determine that the high bit of the shift is zero or one, even if 2074cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the low bits are variable, emit this shift in an optimized form. 2075cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExpandShiftWithKnownAmountBit(N, Lo, Hi)) 2076cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 207769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2078cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this target supports shift_PARTS, use it. First, map to the _PARTS opc. 2079cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned PartsOpc; 208041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 2081cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SHL_PARTS; 208241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 2083cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRL_PARTS; 208441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 2085cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 2086cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRA_PARTS; 2087cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 208869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2089cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Next check to see if the target supports this SHL_PARTS operation or if it 2090cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // will custom expand it. 209123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2092cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::LegalizeAction Action = TLI.getOperationAction(PartsOpc, NVT); 2093cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 2094cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Action == TargetLowering::Custom) { 2095cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Expand the subcomponents. 2096475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 209769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 209869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2099475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, N->getOperand(1) }; 2100e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = LHSL.getValueType(); 2101fc1665793e62eb4f26d24b8a19eecf59cd872e2aDan Gohman Lo = DAG.getNode(PartsOpc, dl, DAG.getVTList(VT, VT), Ops, 3); 2102cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = Lo.getValue(1); 2103cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2104cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 210541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2106cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Otherwise, emit a libcall. 2107dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 210841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands bool isSigned; 210941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 211041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; /*sign irrelevant*/ 2111825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 211215c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SHL_I16; 2113825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2114dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I32; 2115825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2116dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I64; 2117825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2118dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I128; 211941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 212041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; 2121825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 212215c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRL_I16; 2123825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2124dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I32; 2125825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2126dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I64; 2127825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2128dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I128; 212941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 213041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 213141edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = true; 2132825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 213315c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRA_I16; 2134825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2135dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I32; 2136825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2137dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I64; 2138825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2139dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I128; 214041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } 21418c899ee031481dbece5f111379a274c848cb5902Duncan Sands 21426fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (LC != RTLIB::UNKNOWN_LIBCALL && TLI.getLibcallName(LC)) { 21436fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 21442c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, isSigned, dl), Lo, Hi); 21456fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return; 21466fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 214741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 21486fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (!ExpandShiftWithUnknownAmountBit(N, Lo, Hi)) 2149c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unsupported shift!"); 215041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 2151cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 215205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SIGN_EXTEND(SDNode *N, 2153475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 215423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2155786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2156475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 215705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2158b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is sign extension of the input (degenerates to a copy). 2159786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND, dl, NVT, N->getOperand(0)); 216005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part is obtained by SRA'ing all but one of the bits of low part. 216105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned LoSize = NVT.getSizeInBits(); 2162786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 216392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 216405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 216505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 216605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 216796e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 216896e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 216905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2170475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 217105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 217205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 217305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 217405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 217505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 217605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2177786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 2178285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 2179285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng ExcessBits))); 218005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 218105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 218205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 218305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer:: 2184475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi) { 2185786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 218669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 2187e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 2188d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 218905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (EVT.bitsLE(Lo.getValueType())) { 219005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the low part if needed. 2191786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Lo.getValueType(), Lo, 219205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(1)); 2193d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 219405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part gets the sign extension from the lo-part. This handles 219505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // things like sextinreg V:i64 from i8. 2196786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, Hi.getValueType(), Lo, 219705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Hi.getValueType().getSizeInBits()-1, 219892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 219905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 220005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. Leave the low part alone, 220105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the high part. 220205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 220305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands EVT.getSizeInBits() - Lo.getValueType().getSizeInBits(); 2204786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 220554e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 220654e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits))); 220705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 220805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2209d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 221005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N, 2211475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2212e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2213c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 221405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 221505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2216825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2217a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SREM_I16; 2218825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 221905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I32; 2220825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 222105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I64; 2222825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 222305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I128; 222405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!"); 222505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2226475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 22272c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, true, dl), Lo, Hi); 2228d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2229d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 223005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N, 2231475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 223223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2233786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2234786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::TRUNCATE, dl, NVT, N->getOperand(0)); 2235786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, 2236786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getOperand(0).getValueType(), N->getOperand(0), 223792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVT.getSizeInBits(), TLI.getPointerTy())); 2238786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::TRUNCATE, dl, NVT, Hi); 2239d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2240d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2241268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_UADDSUBO(SDNode *N, 2242268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 2243268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = N->getOperand(0); 2244268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = N->getOperand(1); 2245268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = N->getDebugLoc(); 2246268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2247268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 2248268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 2249268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(N->getOpcode() == ISD::UADDO ? 2250268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 2251268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 2252268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 2253268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 225494c22716d60ff5edf6a98a3c67e0faa001be1142Sylvestre Ledru // Calculate the overflow: addition overflows iff a + b < a, and subtraction 225594c22716d60ff5edf6a98a3c67e0faa001be1142Sylvestre Ledru // overflows iff a - b > a. 2256268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Sum, LHS, 2257268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman N->getOpcode () == ISD::UADDO ? 2258268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETULT : ISD::SETUGT); 2259268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2260268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2261268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(N, 1), Ofl); 2262268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2263268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2264362fee90b9a1d64ac091755466caf6a94ade22ebEric Christophervoid DAGTypeLegalizer::ExpandIntRes_XMULO(SDNode *N, 2265362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue &Lo, SDValue &Hi) { 2266362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT VT = N->getValueType(0); 2267362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DebugLoc dl = N->getDebugLoc(); 2268362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2269a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // A divide for UMULO should be faster than a function call. 2270a3071455e540530ecb644a2e59098129f70ce705Eric Christopher if (N->getOpcode() == ISD::UMULO) { 2271a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 2272a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2273331f64cd0dc1249d0708af63b4d13509850c234eEric Christopher SDValue MUL = DAG.getNode(ISD::MUL, dl, LHS.getValueType(), LHS, RHS); 2274a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SplitInteger(MUL, Lo, Hi); 2275a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2276a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // A divide for UMULO will be faster than a function call. Select to 2277a3071455e540530ecb644a2e59098129f70ce705Eric Christopher // make sure we aren't using 0. 2278a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue isZero = DAG.getSetCC(dl, TLI.getSetCCResultType(VT), 2279ffaf69b8b118808ca35ab84d477fd2e4e54cce90Eric Christopher RHS, DAG.getConstant(0, VT), ISD::SETEQ); 2280a3071455e540530ecb644a2e59098129f70ce705Eric Christopher SDValue NotZero = DAG.getNode(ISD::SELECT, dl, VT, isZero, 228196cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling DAG.getConstant(1, VT), RHS); 2282331f64cd0dc1249d0708af63b4d13509850c234eEric Christopher SDValue DIV = DAG.getNode(ISD::UDIV, dl, VT, MUL, NotZero); 2283331f64cd0dc1249d0708af63b4d13509850c234eEric Christopher SDValue Overflow = DAG.getSetCC(dl, N->getValueType(1), DIV, LHS, 2284331f64cd0dc1249d0708af63b4d13509850c234eEric Christopher ISD::SETNE); 2285ffaf69b8b118808ca35ab84d477fd2e4e54cce90Eric Christopher Overflow = DAG.getNode(ISD::SELECT, dl, N->getValueType(1), isZero, 2286ffaf69b8b118808ca35ab84d477fd2e4e54cce90Eric Christopher DAG.getConstant(0, N->getValueType(1)), 2287ffaf69b8b118808ca35ab84d477fd2e4e54cce90Eric Christopher Overflow); 2288a3071455e540530ecb644a2e59098129f70ce705Eric Christopher ReplaceValueWith(SDValue(N, 1), Overflow); 2289a3071455e540530ecb644a2e59098129f70ce705Eric Christopher return; 2290a3071455e540530ecb644a2e59098129f70ce705Eric Christopher } 2291a3071455e540530ecb644a2e59098129f70ce705Eric Christopher 2292331f64cd0dc1249d0708af63b4d13509850c234eEric Christopher Type *RetTy = VT.getTypeForEVT(*DAG.getContext()); 2293331f64cd0dc1249d0708af63b4d13509850c234eEric Christopher EVT PtrVT = TLI.getPointerTy(); 2294331f64cd0dc1249d0708af63b4d13509850c234eEric Christopher Type *PtrTy = PtrVT.getTypeForEVT(*DAG.getContext()); 2295331f64cd0dc1249d0708af63b4d13509850c234eEric Christopher 22965e687ac6158bc28f1831699d7dbfa39d3120b892Eric Christopher // Replace this with a libcall that will check overflow. 2297362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2298362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher if (VT == MVT::i32) 2299362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I32; 2300362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher else if (VT == MVT::i64) 2301362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I64; 2302362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher else if (VT == MVT::i128) 2303362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher LC = RTLIB::MULO_I128; 2304362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported XMULO!"); 2305362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2306362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Temp = DAG.CreateStackTemporary(PtrVT); 2307362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Temporary for the overflow value, default it to zero. 2308362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Chain = DAG.getStore(DAG.getEntryNode(), dl, 230996cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling DAG.getConstant(0, PtrVT), Temp, 231096cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling MachinePointerInfo(), false, false, 0); 2311362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2312362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TargetLowering::ArgListTy Args; 2313362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher TargetLowering::ArgListEntry Entry; 2314362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { 2315362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher EVT ArgVT = N->getOperand(i).getValueType(); 2316db125cfaf57cc83e7dd7453de2d509bc8efd0e5eChris Lattner Type *ArgTy = ArgVT.getTypeForEVT(*DAG.getContext()); 2317362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Node = N->getOperand(i); 2318362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Ty = ArgTy; 2319362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isSExt = true; 2320362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isZExt = false; 2321362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Args.push_back(Entry); 2322362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher } 2323362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2324362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Also pass the address of the overflow check. 2325362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.Node = Temp; 2326b8bce928f4ffdf50eff69334f3e25b27848536b6Micah Villmow Entry.Ty = PtrTy->getPointerTo(); 2327362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isSExt = true; 2328362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Entry.isZExt = false; 2329362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher Args.push_back(Entry); 2330362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2331362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Func = DAG.getExternalSymbol(TLI.getLibcallName(LC), PtrVT); 2332d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski TargetLowering:: 2333d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski CallLoweringInfo CLI(Chain, RetTy, true, false, false, false, 233496cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling 0, TLI.getLibcallCallingConv(LC), 233596cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling /*isTailCall=*/false, 233696cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling /*doesNotReturn=*/false, /*isReturnValueUsed=*/true, 233796cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling Func, Args, DAG, dl); 2338d2ea0e10cbd158c93fb870cdd03001b9cd1156b8Justin Holewinski std::pair<SDValue, SDValue> CallInfo = TLI.LowerCallTo(CLI); 2339362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 2340362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SplitInteger(CallInfo.first, Lo, Hi); 2341362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Temp2 = DAG.getLoad(PtrVT, dl, CallInfo.second, Temp, 234296cb1128528a512f1ef9c28ae5e1b78a98dcc505Bill Wendling MachinePointerInfo(), false, false, false, 0); 2343362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Temp2, 2344362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher DAG.getConstant(0, PtrVT), 2345362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher ISD::SETNE); 2346362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher // Use the overflow from the libcall everywhere. 2347362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher ReplaceValueWith(SDValue(N, 1), Ofl); 2348362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher} 2349362fee90b9a1d64ac091755466caf6a94ade22ebEric Christopher 235005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N, 2351475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2352e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2353c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2354d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 235505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2356825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2357a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UDIV_I16; 2358825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 235905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I32; 2360825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 236105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I64; 2362825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 236305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I128; 236405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!"); 2365d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2366475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 23672c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, false, dl), Lo, Hi); 2368d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2369cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 237005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N, 2371475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2372e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2373c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 237469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 237505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2376825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2377a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UREM_I16; 2378825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 237905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I32; 2380825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 238105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I64; 2382825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 238305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I128; 238405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!"); 2385cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2386475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 23872c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover SplitInteger(TLI.makeLibCall(DAG, LC, VT, Ops, 2, false, dl), Lo, Hi); 2388cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2389cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 239005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N, 2391475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 239223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2393786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2394475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 239505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2396b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is zero extension of the input (degenerates to a copy). 2397786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N->getOperand(0)); 239805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // The high part is just a zero. 239905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 240005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 240105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 240296e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem assert(getTypeAction(Op.getValueType()) == 240396e0c5477c41b316263e894bbb5821c7cdeb25efNadav Rotem TargetLowering::TypePromoteInteger && 240405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2405475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 240605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 240705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 240805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 240905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 241005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 241105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2412adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng Hi = DAG.getZeroExtendInReg(Hi, dl, 241354e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher EVT::getIntegerVT(*DAG.getContext(), 241454e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits)); 24159e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman } 2416cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2417cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2418ba567d670d32e102a70b106fbfe284835085cb3fEli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_ATOMIC_LOAD(SDNode *N, 2419ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue &Lo, SDValue &Hi) { 2420ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman DebugLoc dl = N->getDebugLoc(); 2421ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman EVT VT = cast<AtomicSDNode>(N)->getMemoryVT(); 2422ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Zero = DAG.getConstant(0, VT); 2423ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Swap = DAG.getAtomic(ISD::ATOMIC_CMP_SWAP, dl, VT, 2424ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(0), 2425ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(1), Zero, Zero, 2426ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemOperand(), 2427ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getOrdering(), 2428ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getSynchScope()); 2429ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman ReplaceValueWith(SDValue(N, 0), Swap.getValue(0)); 2430ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman ReplaceValueWith(SDValue(N, 1), Swap.getValue(1)); 2431ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman} 2432cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2433cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 243469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Operand Expansion 2435cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2436cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 243705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandIntegerOperand - This method is called when the specified operand of 243805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// the specified node is found to need expansion. At this point, all of the 243905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// result types of the node are known to be legal, but other operands of the 244005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// node may need promotion or expansion as well as the specified one. 244105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer::ExpandIntegerOperand(SDNode *N, unsigned OpNo) { 2442d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer operand: "; N->dump(&DAG); dbgs() << "\n"); 2443475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 2444051bb7b07504be9f848f7cce802e62ed24980bc5Duncan Sands 2445f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 2446bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 244711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands 2448bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 2449bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 245005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #ifndef NDEBUG 2451d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerOperand Op #" << OpNo << ": "; 2452d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 245305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #endif 2454c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand this operator's operand!"); 2455bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta 2456bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = ExpandOp_BITCAST(N); break; 245792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BR_CC: Res = ExpandIntOp_BR_CC(N); break; 245892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break; 2459bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break; 2460bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: Res = ExpandOp_INSERT_VECTOR_ELT(N); break; 2461bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SCALAR_TO_VECTOR: Res = ExpandOp_SCALAR_TO_VECTOR(N); break; 246292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SELECT_CC: Res = ExpandIntOp_SELECT_CC(N); break; 246392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SETCC: Res = ExpandIntOp_SETCC(N); break; 246492abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SINT_TO_FP: Res = ExpandIntOp_SINT_TO_FP(N); break; 246592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::STORE: Res = ExpandIntOp_STORE(cast<StoreSDNode>(N), OpNo); break; 246692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::TRUNCATE: Res = ExpandIntOp_TRUNCATE(N); break; 246792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::UINT_TO_FP: Res = ExpandIntOp_UINT_TO_FP(N); break; 246855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 246955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 247055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 247155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 247255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 24731c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::ROTR: Res = ExpandIntOp_Shift(N); break; 24741c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::RETURNADDR: 24751c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::FRAMEADDR: Res = ExpandIntOp_RETURNADDR(N); break; 2476ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2477ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman case ISD::ATOMIC_STORE: Res = ExpandIntOp_ATOMIC_STORE(N); break; 247805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 247969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 248005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If the result is null, the sub-method took care of registering results etc. 2481ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Res.getNode()) return false; 248247d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 248347d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 248447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 248547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 248605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 2487cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 248805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 248905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Invalid operand expansion"); 249005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2491475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 249205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 2493cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2494cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 249511ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// IntegerExpandSetCCOperands - Expand the operands of a comparison. This code 249611ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// is shared among BR_CC, SELECT_CC, and SETCC handlers. 2497475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::IntegerExpandSetCCOperands(SDValue &NewLHS, 2498475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &NewRHS, 2499c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen ISD::CondCode &CCCode, 2500c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl) { 2501475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 250269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewLHS, LHSLo, LHSHi); 250369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewRHS, RHSLo, RHSHi); 250441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2505cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (CCCode == ISD::SETEQ || CCCode == ISD::SETNE) { 250611ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (RHSLo == RHSHi) { 250711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) { 2508cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (RHSCST->isAllOnesValue()) { 2509cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Equality comparison to -1. 25107fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands NewLHS = DAG.getNode(ISD::AND, dl, 2511786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHSLo.getValueType(), LHSLo, LHSHi); 2512cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSLo; 2513cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2514cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 251511ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 251611ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 251769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2518786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSLo, RHSLo); 2519786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewRHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSHi, RHSHi); 2520786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::OR, dl, NewLHS.getValueType(), NewLHS, NewRHS); 2521cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 2522cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2523cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 252469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2525cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this is a comparison of the sign bit, just look at the top part. 2526cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // X > -1, x < 0 2527cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(NewRHS)) 2528002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((CCCode == ISD::SETLT && CST->isNullValue()) || // X < 0 2529cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETGT && CST->isAllOnesValue())) { // X > -1 2530cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = LHSHi; 2531cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSHi; 2532cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2533cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 253469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2535cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // FIXME: This generated code sucks. 2536cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::CondCode LowCC; 2537cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (CCCode) { 2538c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer setcc!"); 2539cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLT: 2540cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULT: LowCC = ISD::SETULT; break; 2541cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGT: 2542cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2543cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLE: 2544cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULE: LowCC = ISD::SETULE; break; 2545cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGE: 2546cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2547cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 254869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2549cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2550cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2551cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 255269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2553cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // NOTE: on targets without efficient SELECT of bools, we can always use 2554cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 2555444b4bf5c84c80833ff283244de0885124091a13Nadav Rotem TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, AfterLegalizeTypes, true, NULL); 2556475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2; 25575480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo.getValueType()), 2558ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSLo, RHSLo, LowCC, false, DagCombineInfo, dl); 2559ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 2560786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()), 25615480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSLo, RHSLo, LowCC); 25625480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2563ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, CCCode, false, DagCombineInfo, dl); 2564ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 2565786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp2 = DAG.getNode(ISD::SETCC, dl, 2566786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(LHSHi.getValueType()), 25675480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, DAG.getCondCode(CCCode)); 256869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2569ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 2570ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 2571002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 2572002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 2573cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 2574cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 2575002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 2576cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 2577cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 2578cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // low part is known false, returns high part. 2579cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LE / GE, if high part is known false, ignore the low part. 2580cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LT / GT, if high part is known true, ignore the low part. 2581cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = Tmp2; 2582475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2583cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2584cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 258569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 25865480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands NewLHS = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2587fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel LHSHi, RHSHi, ISD::SETEQ, false, 2588ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen DagCombineInfo, dl); 2589ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!NewLHS.getNode()) 2590786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()), 25915480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, ISD::SETEQ); 2592786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::SELECT, dl, Tmp1.getValueType(), 2593cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS, Tmp1, Tmp2); 2594475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2595cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2596cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2597475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_BR_CC(SDNode *N) { 2598475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3); 259905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get(); 2600c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 260105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 260205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 260305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2604ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 260505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 260605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 260705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 260805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 260905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2610027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 261105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode), NewLHS, NewRHS, 2612027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(4)), 0); 261305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 261405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2615475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SELECT_CC(SDNode *N) { 2616475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 261705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get(); 2618c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 261905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 262005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 262105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2622ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 262305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 262405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 262505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 262605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 262705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2628027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 262905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(2), N->getOperand(3), 2630027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 263105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 263205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2633475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SETCC(SDNode *N) { 2634475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 263505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get(); 2636c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 263705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 263805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, use it. 2639ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 264005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(NewLHS.getValueType() == N->getValueType(0) && 264105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Unexpected setcc expansion!"); 264205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return NewLHS; 264305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 264405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 264505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, update N to have the operands specified. 2646027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 2647027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 264805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 264905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 265055467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::ExpandIntOp_Shift(SDNode *N) { 265155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // The value being shifted is legal, but the shift amount is too big. 265255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // It follows that either the result of the shift is undefined, or the 265355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // upper half of the shift amount is zero. Just use the lower half. 265455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta SDValue Lo, Hi; 265555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta GetExpandedInteger(N->getOperand(1), Lo, Hi); 2656027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Lo), 0); 265755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 265855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 26591c3436a67afcfaee5f972836ff1ffff2985adce1Anton KorobeynikovSDValue DAGTypeLegalizer::ExpandIntOp_RETURNADDR(SDNode *N) { 26601c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // The argument of RETURNADDR / FRAMEADDR builtin is 32 bit contant. This 26611c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // surely makes pretty nice problems on 8/16 bit targets. Just truncate this 26621c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // constant to valid type. 26631c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov SDValue Lo, Hi; 26641c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov GetExpandedInteger(N->getOperand(0), Lo, Hi); 2665027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, Lo), 0); 26661c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov} 26671c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov 2668475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) { 2669475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2670e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2671b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT); 267205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 267305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this SINT_TO_FP!"); 26742c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover return TLI.makeLibCall(DAG, LC, DstVT, &Op, 1, true, N->getDebugLoc()); 267505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 267605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2677475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) { 2678ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalStore(N)) 2679ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands return ExpandOp_NormalStore(N, OpNo); 268078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 268178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 2682cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(OpNo == 1 && "Can only expand the stored value so far"); 2683cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2684e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getOperand(1).getValueType(); 268523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2686475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 2687475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 2688cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 2689cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 26901e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 2691786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2692475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2693cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2694a1ace76c70ae5332d6f33fce5c0c1e2fdb8cca11Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 2695cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 269678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 269769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2698ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 26991e559443a17d1b335f697551c6263ba60d5dd827David Greene N->getMemoryVT(), isVolatile, isNonTemporal, 27001e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 2701ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2702bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck 2703ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (TLI.isLittleEndian()) { 2704cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 270569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2706cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2707ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 27081e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 2709cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2710cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 271183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 271223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 2713cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2714cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 271583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2716786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 27170bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2718ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, 2719ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2720ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NEVT, isVolatile, isNonTemporal, 27211e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 2722825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2723ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2724cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2725ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Big-endian - high bits are at low addresses. Favor aligned stores at 2726ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // the cost of some bit-fiddling. 2727ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner GetExpandedInteger(N->getValue(), Lo, Hi); 2728ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2729ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT ExtVT = N->getMemoryVT(); 2730ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned EBytes = ExtVT.getStoreSize(); 2731ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned IncrementSize = NVT.getSizeInBits()/8; 2732ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 2733ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT HiVT = EVT::getIntegerVT(*DAG.getContext(), 2734ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner ExtVT.getSizeInBits() - ExcessBits); 2735ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2736ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (ExcessBits < NVT.getSizeInBits()) { 2737ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Transfer high bits from the top of Lo to the bottom of Hi. 2738ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::SHL, dl, NVT, Hi, 2739ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 2740ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy())); 2741ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::OR, dl, NVT, Hi, 2742ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getNode(ISD::SRL, dl, NVT, Lo, 2743ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(ExcessBits, 2744ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy()))); 2745cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2746ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2747ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store both the high bits and maybe some of the low bits. 2748ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getPointerInfo(), 2749ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner HiVT, isVolatile, isNonTemporal, Alignment); 2750ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2751ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Increment the pointer to the other half. 2752ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 2753ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getIntPtrConstant(IncrementSize)); 2754ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store the lowest ExcessBits bits in the second half. 2755ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getTruncStore(Ch, dl, Lo, Ptr, 2756ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2757ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 2758ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner isVolatile, isNonTemporal, 2759ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MinAlign(Alignment, IncrementSize)); 2760ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2761cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 276205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2763475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_TRUNCATE(SDNode *N) { 2764475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 276505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 276605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Just truncate the low part of the source. 2767786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), InL); 276805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 276905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 27708d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesenstatic const fltSemantics *EVTToAPFloatSemantics(EVT VT) { 27718d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen switch (VT.getSimpleVT().SimpleTy) { 27728d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen default: llvm_unreachable("Unknown FP format"); 27738d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f32: return &APFloat::IEEEsingle; 27748d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f64: return &APFloat::IEEEdouble; 27758d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f80: return &APFloat::x87DoubleExtended; 27768d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f128: return &APFloat::IEEEquad; 27778d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::ppcf128: return &APFloat::PPCDoubleDouble; 27788d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen } 27798d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen} 27808d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen 2781475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) { 2782475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2783e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SrcVT = Op.getValueType(); 2784e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2785c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 278605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 27878d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // The following optimization is valid only if every value in SrcVT (when 27888d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // treated as signed) is representable in DstVT. Check that the mantissa 27898d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // size of DstVT is >= than the number of bits in SrcVT -1. 27908d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen const fltSemantics *sem = EVTToAPFloatSemantics(DstVT); 27918d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen if (APFloat::semanticsPrecision(*sem) >= SrcVT.getSizeInBits()-1 && 27928d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen TLI.getOperationAction(ISD::SINT_TO_FP, SrcVT) == TargetLowering::Custom){ 279305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Do a signed conversion then adjust the result. 2794786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SignedConv = DAG.getNode(ISD::SINT_TO_FP, dl, DstVT, Op); 279505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SignedConv = TLI.LowerOperation(SignedConv, DAG); 279605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 279705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The result of the signed conversion needs adjusting if the 'sign bit' of 279805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // the incoming integer was set. To handle this, we dynamically test to see 279905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // if it is set, and, if so, add a fudge factor. 280005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 280105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE32 = 0x4F800000ULL; 280205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE64 = 0x5F800000ULL; 280305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE128 = 0x7F800000ULL; 280405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 280505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt FF(32, 0); 2806825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (SrcVT == MVT::i32) 280705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE32); 2808825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i64) 280905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE64); 2810825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i128) 281105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE128); 281205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else 28135e25ee8a1fcf8288d00d731b0f7ab7976f33b123Craig Topper llvm_unreachable("Unsupported UINT_TO_FP!"); 281405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 281505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Check whether the sign bit is set. 2816475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 281705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(Op, Lo, Hi); 28187fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue SignSet = DAG.getSetCC(dl, 2819786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(Hi.getValueType()), 28205480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Hi, DAG.getConstant(0, Hi.getValueType()), 2821ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands ISD::SETLT); 282205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 282305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Build a 64 bit pair (0, FF) in the constant pool, with FF in the lo bits. 2824001dbfebcbbded8c8e74b19e838b50da2b6c6fb5Owen Anderson SDValue FudgePtr = DAG.getConstantPool( 2825eed707b1e6097aac2bb6b3d47271f6300ace7f2eOwen Anderson ConstantInt::get(*DAG.getContext(), FF.zext(64)), 282649c18cce976c158e86f54c681dff21bb81640fb8Duncan Sands TLI.getPointerTy()); 282705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 282805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get a pointer to FF if the sign bit was set, or to 0 otherwise. 2829475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0); 2830475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Four = DAG.getIntPtrConstant(4); 283105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.isBigEndian()) std::swap(Zero, Four); 2832786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Offset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), SignSet, 2833ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands Zero, Four); 28341606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(FudgePtr)->getAlignment(); 2835786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen FudgePtr = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), FudgePtr, Offset); 283687a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 283705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 283805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Load the value out, extending it from f32 to the destination float type. 283905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // FIXME: Avoid the extend by constructing the right constant pool? 2840a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Fudge = DAG.getExtLoad(ISD::EXTLOAD, dl, DstVT, DAG.getEntryNode(), 28413d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner FudgePtr, 28423d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MachinePointerInfo::getConstantPool(), 28433d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MVT::f32, 28441e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, Alignment); 2845786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::FADD, dl, DstVT, SignedConv, Fudge); 284605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 284705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 284805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, use a libcall. 2849b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT); 285005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 285105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this UINT_TO_FP!"); 28522c8cf4b404e549482f593f62f9e27e0bab4a8b3fTim Northover return TLI.makeLibCall(DAG, LC, DstVT, &Op, 1, true, dl); 285305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2854fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2855ba567d670d32e102a70b106fbfe284835085cb3fEli FriedmanSDValue DAGTypeLegalizer::ExpandIntOp_ATOMIC_STORE(SDNode *N) { 2856ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman DebugLoc dl = N->getDebugLoc(); 2857ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman SDValue Swap = DAG.getAtomic(ISD::ATOMIC_SWAP, dl, 2858ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemoryVT(), 2859ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(0), 2860ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman N->getOperand(1), N->getOperand(2), 2861ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getMemOperand(), 2862ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getOrdering(), 2863ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman cast<AtomicSDNode>(N)->getSynchScope()); 2864ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman return Swap.getValue(1); 2865ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman} 2866ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2867ba567d670d32e102a70b106fbfe284835085cb3fEli Friedman 2868fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_SUBVECTOR(SDNode *N) { 2869fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue InOp0 = N->getOperand(0); 2870fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT InVT = InOp0.getValueType(); 2871fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2872fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2873fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2874fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 28755b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem unsigned OutNumElems = OutVT.getVectorNumElements(); 2876fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2877fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2878fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2879fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue BaseIdx = N->getOperand(1); 2880fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2881fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 28825b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem Ops.reserve(OutNumElems); 2883fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != OutNumElems; ++i) { 2884fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2885fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract the element from the original vector. 2886fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Index = DAG.getNode(ISD::ADD, dl, BaseIdx.getValueType(), 2887fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem BaseIdx, DAG.getIntPtrConstant(i)); 2888fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2889fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem InVT.getVectorElementType(), N->getOperand(0), Index); 2890fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2891fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, Ext); 2892fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Insert the converted element to the new vector. 2893fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2894fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2895fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2896fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2897fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2898fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2899fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2900fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_VECTOR_SHUFFLE(SDNode *N) { 2901fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem ShuffleVectorSDNode *SV = cast<ShuffleVectorSDNode>(N); 2902fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT VT = N->getValueType(0); 2903fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2904fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2905fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElts = VT.getVectorNumElements(); 2906fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<int, 8> NewMask; 2907fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElts; ++i) { 2908fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewMask.push_back(SV->getMaskElt(i)); 2909fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2910fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2911fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2912fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = GetPromotedInteger(N->getOperand(1)); 29135b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem EVT OutVT = V0.getValueType(); 2914fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 29155b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem return DAG.getVectorShuffle(OutVT, dl, V0, V1, &NewMask[0]); 2916fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2917fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2918fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2919fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_VECTOR(SDNode *N) { 2920fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2921fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2922fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2923fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElems = N->getNumOperands(); 2924fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2925fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2926fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2927fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2928fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> Ops; 29295b82c2f8911e7e7bcaa563cf15b5d03cf0292379Nadav Rotem Ops.reserve(NumElems); 2930fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i = 0; i != NumElems; ++i) { 29310fc44aba18ed2f557805ce84fe597356f026f202Pete Cooper SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(i)); 2932fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Ops.push_back(Op); 2933fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 2934fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2935fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2936fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2937fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2938fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_SCALAR_TO_VECTOR(SDNode *N) { 2939fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2940fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2941fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 29421396c403897e3d3e04fbf59f6c5fe77cbbab74a6Benjamin Kramer assert(!N->getOperand(0).getValueType().isVector() && 29431396c403897e3d3e04fbf59f6c5fe77cbbab74a6Benjamin Kramer "Input must be a scalar"); 2944fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2945fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2946fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2947fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2948fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2949fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2950fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Op = DAG.getNode(ISD::ANY_EXTEND, dl, NOutVTElem, N->getOperand(0)); 2951fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2952fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::SCALAR_TO_VECTOR, dl, NOutVT, Op); 2953fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 2954fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2955c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_CONCAT_VECTORS(SDNode *N) { 2956c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2957c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2958c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT OutVT = N->getValueType(0); 2959c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2960c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2961c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2962d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman EVT InElemTy = OutVT.getVectorElementType(); 2963c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem EVT OutElemTy = NOutVT.getVectorElementType(); 2964c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2965d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman unsigned NumElem = N->getOperand(0).getValueType().getVectorNumElements(); 2966c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem unsigned NumOutElem = NOutVT.getVectorNumElements(); 2967d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman unsigned NumOperands = N->getNumOperands(); 2968d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman assert(NumElem * NumOperands == NumOutElem && 2969d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman "Unexpected number of elements"); 2970c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2971c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem // Take the elements from the first vector. 2972c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem SmallVector<SDValue, 8> Ops(NumOutElem); 2973d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman for (unsigned i = 0; i < NumOperands; ++i) { 2974d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman SDValue Op = N->getOperand(i); 2975d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman for (unsigned j = 0; j < NumElem; ++j) { 2976d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 2977d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman InElemTy, Op, DAG.getIntPtrConstant(j)); 2978d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman Ops[i * NumElem + j] = DAG.getNode(ISD::ANY_EXTEND, dl, OutElemTy, Ext); 2979d577df8e5ada3f4f97fa90bdc46c6f9b1db1dee1Eli Friedman } 2980c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem } 2981c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2982c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, NOutVT, &Ops[0], Ops.size()); 2983c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem} 2984c56d65f63cd632ef57d9f80b4539f15a2f937364Nadav Rotem 2985fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntRes_INSERT_VECTOR_ELT(SDNode *N) { 2986fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT OutVT = N->getValueType(0); 2987fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 2988fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem assert(NOutVT.isVector() && "This type must be promoted to a vector type"); 2989fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2990fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT NOutVTElem = NOutVT.getVectorElementType(); 2991fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2992fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 2993811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 2994fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 2995fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue ConvElem = DAG.getNode(ISD::ANY_EXTEND, dl, 2996fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NOutVTElem, N->getOperand(1)); 2997811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem return DAG.getNode(ISD::INSERT_VECTOR_ELT, dl, NOutVT, 29982ff4bc615584fa9f32e64959767d64f2cb09fb99Nadav Rotem V0, ConvElem, N->getOperand(2)); 2999fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 3000fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3001fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_EXTRACT_VECTOR_ELT(SDNode *N) { 3002fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 3003fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V0 = GetPromotedInteger(N->getOperand(0)); 3004fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue V1 = N->getOperand(1); 3005fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ext = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, 3006fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem V0->getValueType(0).getScalarType(), V0, V1); 3007fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 30080eba4fe292a0bb343da5fb2667850a39459cef0bNadav Rotem // EXTRACT_VECTOR_ELT can return types which are wider than the incoming 3009a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem // element types. If this is the case then we need to expand the outgoing 3010a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem // value and not truncate it. 3011a3c42f3d4e5d14c8f4fb9bb123e7759c425d041bNadav Rotem return DAG.getAnyExtOrTrunc(Ext, dl, N->getValueType(0)); 3012fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem} 3013fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3014fc3623bc50aa9e2a56736775edbd3ae919565351Nadav RotemSDValue DAGTypeLegalizer::PromoteIntOp_CONCAT_VECTORS(SDNode *N) { 3015fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem DebugLoc dl = N->getDebugLoc(); 3016811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem unsigned NumElems = N->getNumOperands(); 3017fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3018fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT RetSclrTy = N->getValueType(0).getVectorElementType(); 3019fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3020fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SmallVector<SDValue, 8> NewOps; 3021811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem NewOps.reserve(NumElems); 3022fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3023fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // For each incoming vector 3024811ad8690b798cdcbd9d80a2b6a404145222b9a9Nadav Rotem for (unsigned VecIdx = 0; VecIdx != NumElems; ++VecIdx) { 3025fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Incoming = GetPromotedInteger(N->getOperand(VecIdx)); 3026fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem EVT SclrTy = Incoming->getValueType(0).getVectorElementType(); 3027fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem unsigned NumElem = Incoming->getValueType(0).getVectorNumElements(); 3028fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3029fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem for (unsigned i=0; i<NumElem; ++i) { 3030fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem // Extract element from incoming vector 3031fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Ex = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, SclrTy, 3032fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem Incoming, DAG.getIntPtrConstant(i)); 3033fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem SDValue Tr = DAG.getNode(ISD::TRUNCATE, dl, RetSclrTy, Ex); 3034fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem NewOps.push_back(Tr); 3035fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3036fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3037fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem 3038fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem return DAG.getNode(ISD::BUILD_VECTOR, dl, N->getValueType(0), 3039fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem &NewOps[0], NewOps.size()); 3040fc3623bc50aa9e2a56736775edbd3ae919565351Nadav Rotem } 3041