LegalizeIntegerTypes.cpp revision b300d2aa3ef08b5074449e2c05804717f488f4e4
169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----- LegalizeIntegerTypes.cpp - Legalization of integer types -------===// 2cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 3cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// The LLVM Compiler Infrastructure 4cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 8cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 9cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 1069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// This file implements integer type expansion and promotion for LegalizeTypes. 1169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Promotion is the act of changing a computation in an illegal type into a 1269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// computation in a larger type. For example, implementing i8 arithmetic in an 1369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// i32 register (often needed on powerpc). 1469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Expansion is the act of changing a computation in an illegal type into a 1578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands// computation in two identical registers of a smaller type. For example, 1669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// implementing i64 arithmetic in two i32 registers (often needed on 32-bit 1769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// targets). 18cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 19cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 20cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 21cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#include "LegalizeTypes.h" 22c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang#include "llvm/CodeGen/PseudoSourceValue.h" 23cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattnerusing namespace llvm; 24cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 25cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Promotion 27cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 28cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteIntegerResult - This method is called when a result of a node is 3069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// found to be in need of promotion to a larger type. At this point, the node 3169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// may also have invalid operands or may have other results that need 3269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// expansion, we just know that (at least) one result needs promotion. 3369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) { 3469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DEBUG(cerr << "Promote integer result: "; N->dump(&DAG); cerr << "\n"); 359fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SDValue Res = SDValue(); 3669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 37126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands // See if the target wants to custom expand this node. 389fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (CustomLowerResults(N, N->getValueType(ResNo), true)) 391607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 40126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 4169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (N->getOpcode()) { 4269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 4369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#ifndef NDEBUG 4469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands cerr << "PromoteIntegerResult #" << ResNo << ": "; 4569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->dump(&DAG); cerr << "\n"; 4669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#endif 4769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(0 && "Do not know how to promote this operator!"); 4869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands abort(); 499fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertSext: Res = PromoteIntRes_AssertSext(N); break; 509fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertZext: Res = PromoteIntRes_AssertZext(N); break; 519fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BIT_CONVERT: Res = PromoteIntRes_BIT_CONVERT(N); break; 529fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BSWAP: Res = PromoteIntRes_BSWAP(N); break; 539fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BUILD_PAIR: Res = PromoteIntRes_BUILD_PAIR(N); break; 549fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::Constant: Res = PromoteIntRes_Constant(N); break; 5500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang case ISD::CONVERT_RNDSAT: 569fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_CONVERT_RNDSAT(N); break; 579fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTLZ: Res = PromoteIntRes_CTLZ(N); break; 589fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTPOP: Res = PromoteIntRes_CTPOP(N); break; 599fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTTZ: Res = PromoteIntRes_CTTZ(N); break; 60bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ISD::EXTRACT_VECTOR_ELT: 619fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_EXTRACT_VECTOR_ELT(N); break; 629fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::LOAD: Res = PromoteIntRes_LOAD(cast<LoadSDNode>(N));break; 639fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT: Res = PromoteIntRes_SELECT(N); break; 649fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT_CC: Res = PromoteIntRes_SELECT_CC(N); break; 659fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SETCC: Res = PromoteIntRes_SETCC(N); break; 669fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SHL: Res = PromoteIntRes_SHL(N); break; 678d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands case ISD::SIGN_EXTEND_INREG: 689fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_SIGN_EXTEND_INREG(N); break; 699fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRA: Res = PromoteIntRes_SRA(N); break; 709fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRL: Res = PromoteIntRes_SRL(N); break; 719fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::TRUNCATE: Res = PromoteIntRes_TRUNCATE(N); break; 729fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UNDEF: Res = PromoteIntRes_UNDEF(N); break; 739fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::VAARG: Res = PromoteIntRes_VAARG(N); break; 74bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 7569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SIGN_EXTEND: 7669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ZERO_EXTEND: 779fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::ANY_EXTEND: Res = PromoteIntRes_INT_EXTEND(N); break; 78bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 7969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: 809fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::FP_TO_UINT: Res = PromoteIntRes_FP_TO_XINT(N); break; 8169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 8269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AND: 8369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::OR: 8469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::XOR: 8569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ADD: 8669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SUB: 879fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::MUL: Res = PromoteIntRes_SimpleIntBinOp(N); break; 8869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 8969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SDIV: 909fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SREM: Res = PromoteIntRes_SDIV(N); break; 9169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 9269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::UDIV: 939fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UREM: Res = PromoteIntRes_UDIV(N); break; 948ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 95253174bf50c932abaa680f465e2888c0e5272267Bill Wendling case ISD::SADDO: 969fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SSUBO: Res = PromoteIntRes_SADDSUBO(N, ResNo); break; 9774c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::UADDO: 989fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::USUBO: Res = PromoteIntRes_UADDSUBO(N, ResNo); break; 9974c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::SMULO: 1009fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UMULO: Res = PromoteIntRes_XMULO(N, ResNo); break; 101b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1020b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_ADD: 1030b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_SUB: 1040b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_AND: 1050b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_OR: 1060b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_XOR: 1070b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_NAND: 1080b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MIN: 1090b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MAX: 1100b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMIN: 1110b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMAX: 1120b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_SWAP: 1139fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic1(cast<AtomicSDNode>(N)); break; 114b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1150b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_CMP_SWAP: 1169fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic2(cast<AtomicSDNode>(N)); break; 11769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 11869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1199fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands // If the result is null then the sub-method took care of registering it. 1209fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (Res.getNode()) 1219fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SetPromotedInteger(SDValue(N, ResNo), Res); 12269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 12369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 124475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertSext(SDNode *N) { 12595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Sign-extend the new bits, and continue the assertion. 126c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = SExtPromotedInteger(N->getOperand(0)); 127786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertSext, N->getDebugLoc(), 128786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 12995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 13095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 131475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertZext(SDNode *N) { 13295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Zero the new bits, and continue the assertion. 133c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 134786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertZext, N->getDebugLoc(), 135786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 13695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 13795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 138b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic1(AtomicSDNode *N) { 139b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 1407fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 141786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getMemoryVT(), 1420b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman N->getChain(), N->getBasePtr(), 143b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands Op2, N->getSrcValue(), N->getAlignment()); 144b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 145b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 146b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 147b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 148b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 149b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 150b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic2(AtomicSDNode *N) { 151b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 152b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op3 = GetPromotedInteger(N->getOperand(3)); 153f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 154f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen N->getMemoryVT(), N->getChain(), N->getBasePtr(), 155b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands Op2, Op3, N->getSrcValue(), N->getAlignment()); 156b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 157b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 158b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 159b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 160b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 161b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 162475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BIT_CONVERT(SDNode *N) { 163475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = N->getOperand(0); 16469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT InVT = InOp.getValueType(); 16569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT NInVT = TLI.getTypeToTransformTo(InVT); 16647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands MVT OutVT = N->getValueType(0); 16747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands MVT NOutVT = TLI.getTypeToTransformTo(OutVT); 168786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 16969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 17069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (getTypeAction(InVT)) { 17169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 17269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(false && "Unknown type action!"); 17369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 17469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case Legal: 17569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 17669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case PromoteInteger: 17747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (NOutVT.bitsEq(NInVT)) 17869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The input promotes to the same size. Convert the promoted value. 1797fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands return DAG.getNode(ISD::BIT_CONVERT, dl, 180786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NOutVT, GetPromotedInteger(InOp)); 18169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 1824fc4fd657d4266059dac3849133a3a351b03d99dDuncan Sands case SoftenFloat: 18369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the integer operand by hand. 184786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, GetSoftenedFloat(InOp)); 18569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ExpandInteger: 18669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ExpandFloat: 18769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 188f4e4629ee8c218f892ad8ae3e182fe40bc160895Duncan Sands case ScalarizeVector: 18969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert the element to an integer and promote it by hand. 190786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 19169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands BitConvertToInteger(GetScalarizedVector(InOp))); 19287c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang case SplitVector: { 19369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // For example, i32 = BIT_CONVERT v2i16 on alpha. Convert the split 19469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // pieces of the input into integers and reassemble in the final type. 195475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 19669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetSplitVector(N->getOperand(0), Lo, Hi); 19769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Lo = BitConvertToInteger(Lo); 19869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Hi = BitConvertToInteger(Hi); 19969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 20069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 20169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 20269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 203786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen InOp = DAG.getNode(ISD::ANY_EXTEND, dl, 20447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands MVT::getIntegerVT(NOutVT.getSizeInBits()), 20569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands JoinIntegers(Lo, Hi)); 206786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::BIT_CONVERT, dl, NOutVT, InOp); 20769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 20887c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang case WidenVector: 20987c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang if (OutVT.bitsEq(NInVT)) 21087c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang // The input is widened to the same size. Convert to the widened value. 211786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::BIT_CONVERT, dl, OutVT, GetWidenedVector(InOp)); 21287c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang } 21369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 21447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // Otherwise, lower the bit-convert to a store/load from the stack. 21547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // Create the stack frame object. Make sure it is aligned for both 21647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // the source and destination types. 21747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands SDValue FIPtr = DAG.CreateStackTemporary(InVT, OutVT); 218c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang int FI = cast<FrameIndexSDNode>(FIPtr.getNode())->getIndex(); 219c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang const Value *SV = PseudoSourceValue::getFixedStack(FI); 22047d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 22147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // Emit a store to the stack slot. 222c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang SDValue Store = DAG.getStore(DAG.getEntryNode(), dl, InOp, FIPtr, SV, 0); 22347d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 22447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // Result is an extending load from the stack slot. 225c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang return DAG.getExtLoad(ISD::EXTLOAD, dl, NOutVT, Store, FIPtr, SV, 0, OutVT); 22669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 22769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 228475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BSWAP(SDNode *N) { 229475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 230c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands MVT OVT = N->getValueType(0); 231c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands MVT NVT = Op.getValueType(); 232786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 233c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 234c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 235786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, dl, NVT, DAG.getNode(ISD::BSWAP, dl, NVT, Op), 23692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(DiffBits, TLI.getPointerTy())); 237c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands} 238c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 239475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_PAIR(SDNode *N) { 240bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The pair element type may be legal, or may not promote to the same type as 241bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // the result, for example i14 = BUILD_PAIR (i7, i7). Handle all cases. 242786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), 243bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands TLI.getTypeToTransformTo(N->getValueType(0)), 244bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands JoinIntegers(N->getOperand(0), N->getOperand(1))); 24569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 24669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 247475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_Constant(SDNode *N) { 24869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT VT = N->getValueType(0); 249b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen // FIXME there is no actual debug info here 250b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 251bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Zero extend things like i1, sign extend everything else. It shouldn't 252bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // matter in theory which one we pick, but this tends to give better code? 253bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Opc = VT.isByteSized() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND; 254b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen SDValue Result = DAG.getNode(Opc, dl, TLI.getTypeToTransformTo(VT), 255a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands SDValue(N, 0)); 256bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(isa<ConstantSDNode>(Result) && "Didn't constant fold ext?"); 257bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Result; 25869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 25969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 26000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P WangSDValue DAGTypeLegalizer::PromoteIntRes_CONVERT_RNDSAT(SDNode *N) { 26100ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 26200ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 26300ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 26400ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_SF || CvtCode == ISD::CVT_UF) && 26500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang "can only promote integers"); 26600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang MVT OutVT = TLI.getTypeToTransformTo(N->getValueType(0)); 267c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(OutVT, N->getDebugLoc(), N->getOperand(0), 26800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(1), N->getOperand(2), 26900ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 27000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang} 27100ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang 272475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTLZ(SDNode *N) { 273c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands // Zero extend to the promoted type and do the count there. 274c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 275b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 27669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT OVT = N->getValueType(0); 27769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT NVT = Op.getValueType(); 278b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Op = DAG.getNode(ISD::CTLZ, dl, NVT, Op); 27969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Subtract off the extra leading bits in the bigger type. 280b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen return DAG.getNode(ISD::SUB, dl, NVT, Op, 28169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DAG.getConstant(NVT.getSizeInBits() - 28269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands OVT.getSizeInBits(), NVT)); 28369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 28469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 285475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTPOP(SDNode *N) { 28669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Zero extend to the promoted type and do the count there. 287c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 288786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTPOP, N->getDebugLoc(), Op.getValueType(), Op); 28969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 29069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 291475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTTZ(SDNode *N) { 292475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 29369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT OVT = N->getValueType(0); 29469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT NVT = Op.getValueType(); 295786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 29669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The count is the same in the promoted type except if the original 29769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // value was zero. This can be handled by setting the bit just off 29869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the top of the original type. 29903dc093a2e63d20984c8fd67809fa762f1e31f1aDuncan Sands APInt TopBit(NVT.getSizeInBits(), 0); 30003dc093a2e63d20984c8fd67809fa762f1e31f1aDuncan Sands TopBit.set(OVT.getSizeInBits()); 301786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::OR, dl, NVT, Op, DAG.getConstant(TopBit, NVT)); 302786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTTZ, dl, NVT, Op); 30369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 30469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 305475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N) { 30669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT OldVT = N->getValueType(0); 307475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue OldVec = N->getOperand(0); 308f7eef6811c8b701b815c64e754a174691953a35fMon P Wang if (getTypeAction(OldVec.getValueType()) == WidenVector) 309f7eef6811c8b701b815c64e754a174691953a35fMon P Wang OldVec = GetWidenedVector(N->getOperand(0)); 31069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned OldElts = OldVec.getValueType().getVectorNumElements(); 311786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 31269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 31369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OldElts == 1) { 31469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!isTypeLegal(OldVec.getValueType()) && 31569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Legal one-element vector of a type needing promotion!"); 31669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // It is tempting to follow GetScalarizedVector by a call to 31769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // GetPromotedInteger, but this would be wrong because the 31869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // scalarized value may not yet have been processed. 319786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, TLI.getTypeToTransformTo(OldVT), 32069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetScalarizedVector(OldVec)); 32169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 32269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 32369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert to a vector half as long with an element type of twice the width, 32469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // for example <4 x i16> -> <2 x i32>. 32569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(OldElts & 1) && "Odd length vectors not supported!"); 32669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT NewVT = MVT::getIntegerVT(2 * OldVT.getSizeInBits()); 32769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OldVT.isSimple() && NewVT.isSimple()); 32869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 329786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue NewVec = DAG.getNode(ISD::BIT_CONVERT, dl, 33069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT::getVectorVT(NewVT, OldElts / 2), 33169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands OldVec); 33269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 33369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Extract the element at OldIdx / 2 from the new vector. 334475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue OldIdx = N->getOperand(1); 335786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue NewIdx = DAG.getNode(ISD::SRL, dl, OldIdx.getValueType(), OldIdx, 33692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(1, TLI.getPointerTy())); 337786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Elt = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NewVT, NewVec, NewIdx); 33869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 33969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Select the appropriate half of the element: Lo if OldIdx was even, 34069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Hi if it was odd. 341475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo = Elt; 342786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Hi = DAG.getNode(ISD::SRL, dl, NewVT, Elt, 3436959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands DAG.getConstant(OldVT.getSizeInBits(), 34492abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 34569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 34669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 34769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 348042fb3199f480cd8096d9c51ba1aceecd9af6f0eDuncan Sands // Extend to the promoted type. 349786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Odd = DAG.getNode(ISD::TRUNCATE, dl, MVT::i1, OldIdx); 350786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::SELECT, dl, NewVT, Odd, Hi, Lo); 351786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, TLI.getTypeToTransformTo(OldVT), Res); 35269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 35369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 354475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_FP_TO_XINT(SDNode *N) { 355bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 356a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands unsigned NewOpc = N->getOpcode(); 357786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 358d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 359bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If we're promoting a UINT to a larger size, check to see if the new node 360bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since 361bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // we can use that instead. This allows us to generate better code for 362bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not 363bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal, such as PowerPC. 364a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands if (N->getOpcode() == ISD::FP_TO_UINT && 365f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman !TLI.isOperationLegalOrCustom(ISD::FP_TO_UINT, NVT) && 366f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NVT)) 367a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NewOpc = ISD::FP_TO_SINT; 368a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 369786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(NewOpc, dl, NVT, N->getOperand(0)); 370a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 371a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // Assert that the converted value fits in the original type. If it doesn't 372a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // (eg: because the value being converted is too big), then the result of the 373a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // original operation was undefined anyway, so the assert is still correct. 374a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands return DAG.getNode(N->getOpcode() == ISD::FP_TO_UINT ? 375786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen ISD::AssertZext : ISD::AssertSext, dl, 376a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NVT, Res, DAG.getValueType(N->getValueType(0))); 377d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands} 378d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 379475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_INT_EXTEND(SDNode *N) { 380bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 381786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 382be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 383bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (getTypeAction(N->getOperand(0).getValueType()) == PromoteInteger) { 384475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(N->getOperand(0)); 3856959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(Res.getValueType().bitsLE(NVT) && "Extension doesn't make sense!"); 386126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 387bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result and operand types are the same after promotion, simplify 388bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // to an in-register extension. 389bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (NVT == Res.getValueType()) { 390bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The high bits are not guaranteed to be anything. Insert an extend. 391bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::SIGN_EXTEND) 392786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 393bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DAG.getValueType(N->getOperand(0).getValueType())); 394bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::ZERO_EXTEND) 3954be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen return DAG.getZeroExtendInReg(Res, dl, N->getOperand(0).getValueType()); 396bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(N->getOpcode() == ISD::ANY_EXTEND && "Unknown integer extension!"); 397bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 398126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 39969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 40069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 401bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Otherwise, just extend the original operand all the way to the larger type. 402786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 403bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 40469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 405475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_LOAD(LoadSDNode *N) { 406bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 407bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 408bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::LoadExtType ExtType = 409bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::isNON_EXTLoad(N) ? ISD::EXTLOAD : N->getExtensionType(); 410786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 411786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getExtLoad(ExtType, dl, NVT, N->getChain(), N->getBasePtr(), 41247d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getSrcValue(), N->getSrcValueOffset(), 41347d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getMemoryVT(), N->isVolatile(), 41447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getAlignment()); 41569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 416bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Legalized the chain result - switch anything that used the old chain to 417bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 418475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 419bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 42069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 42169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 422ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands/// Promote the overflow flag of an overflowing arithmetic node. 423ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Overflow(SDNode *N) { 424ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Simply change the return type of the boolean result. 425ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(1)); 426ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT ValueVTs[] = { N->getValueType(0), NVT }; 427ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue Ops[] = { N->getOperand(0), N->getOperand(1) }; 428786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(N->getOpcode(), N->getDebugLoc(), 429786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getVTList(ValueVTs, 2), Ops, 2); 430ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 431ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Modified the sum result - switch anything that used the old sum to use 432ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the new one. 433ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 0), Res); 434ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 435ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return SDValue(Res.getNode(), 1); 436ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 437ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 438ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo) { 439ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 440ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 441ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 442ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 443ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // sign extension of its truncation to the original type. 444ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 445ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 446ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT OVT = N->getOperand(0).getValueType(); 447ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT NVT = LHS.getValueType(); 448786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 449ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 450ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 451ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::SADDO ? ISD::ADD : ISD::SUB; 452786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 453ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 454ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: sign extend the arithmetic result from 455ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 456786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Ofl = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 457ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands DAG.getValueType(OVT)); 458ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 459786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 460ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 461ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 462ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 463ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 464ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 465ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 466ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 467475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SDIV(SDNode *N) { 468bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Sign extend the input. 469c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 470c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 471786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 472786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 47369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 47469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 475475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT(SDNode *N) { 476475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(1)); 477475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(2)); 478786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT, N->getDebugLoc(), 479786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0),LHS,RHS); 48069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 482475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT_CC(SDNode *N) { 483475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(2)); 484475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(3)); 485786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(), 486786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0), 487bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 48869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 490475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SETCC(SDNode *N) { 4915480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands MVT SVT = TLI.getSetCCResultType(N->getOperand(0).getValueType()); 4927e4982287591945c4e42ba8470a978e629789c76Duncan Sands assert(isTypeLegal(SVT) && "Illegal SetCC type!"); 493786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 4947e4982287591945c4e42ba8470a978e629789c76Duncan Sands 4957e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Get the SETCC result using the canonical SETCC type. 496786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SetCC = DAG.getNode(ISD::SETCC, dl, SVT, N->getOperand(0), 4977e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 4987e4982287591945c4e42ba8470a978e629789c76Duncan Sands 4997e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Convert to the expected type. 5007e4982287591945c4e42ba8470a978e629789c76Duncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 5016959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(NVT.bitsLE(SVT) && "Integer type overpromoted?"); 502786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, NVT, SetCC); 50369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 50469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 505475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SHL(SDNode *N) { 506786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SHL, N->getDebugLoc(), 507786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getTypeToTransformTo(N->getValueType(0)), 508bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands GetPromotedInteger(N->getOperand(0)), N->getOperand(1)); 50969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 51069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 511475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N) { 512475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 513786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, N->getDebugLoc(), 514786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 5158d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands} 5168d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands 517475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SimpleIntBinOp(SDNode *N) { 518bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input may have strange things in the top bits of the registers, but 519bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // these operations don't care. They may have weird bits going out, but 520bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // that too is okay if they are integer operations. 521475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(0)); 522475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(1)); 523786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 524786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 52569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 52669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 527475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRA(SDNode *N) { 528bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly sign extended. 529c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Res = SExtPromotedInteger(N->getOperand(0)); 530786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRA, N->getDebugLoc(), 531786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res.getValueType(), Res, N->getOperand(1)); 532bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 53369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 534475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRL(SDNode *N) { 535bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly zero extended. 536bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT VT = N->getValueType(0); 537bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 538475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = ZExtPromotedInteger(N->getOperand(0)); 539786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, N->getDebugLoc(), NVT, Res, N->getOperand(1)); 54069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 54169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 542475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_TRUNCATE(SDNode *N) { 5436959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 544475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res; 54569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 546bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands switch (getTypeAction(N->getOperand(0).getValueType())) { 547bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands default: assert(0 && "Unknown type action!"); 548bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case Legal: 549bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ExpandInteger: 550bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Res = N->getOperand(0); 551bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 552bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case PromoteInteger: 553bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Res = GetPromotedInteger(N->getOperand(0)); 554bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 555bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands } 556bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 557bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate to NVT instead of VT 558786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), NVT, Res); 55969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 56069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 561ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo) { 562ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 563ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 564ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 565ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 566ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // zero extension of its truncation to the original type. 567c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 568c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 569ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT OVT = N->getOperand(0).getValueType(); 570ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT NVT = LHS.getValueType(); 571786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 57269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 573ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 574ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::UADDO ? ISD::ADD : ISD::SUB; 575786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 5768ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 577ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: zero extend the arithmetic result from 578ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 5794be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen SDValue Ofl = DAG.getZeroExtendInReg(Res, dl, OVT); 580ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 581786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 5828ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 583ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 584ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 5858ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 586ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 587ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 588ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 589ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { 590ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Zero extend the input. 591ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 592ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 593786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 594786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 5958ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling} 5968ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 597475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_UNDEF(SDNode *N) { 598e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen return DAG.getUNDEF(TLI.getTypeToTransformTo(N->getValueType(0))); 59969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 60069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 601475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_VAARG(SDNode *N) { 602475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = N->getOperand(0); // Get the chain. 603475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getOperand(1); // Get the pointer. 604bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT VT = N->getValueType(0); 605786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 60669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 607d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands MVT RegVT = TLI.getRegisterType(VT); 608d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands unsigned NumRegs = TLI.getNumRegisters(VT); 609d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // The argument is passed as NumRegs registers of type RegVT. 610d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 611d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands SmallVector<SDValue, 8> Parts(NumRegs); 612d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 0; i < NumRegs; ++i) { 613c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen Parts[i] = DAG.getVAArg(RegVT, dl, Chain, Ptr, N->getOperand(2)); 614d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands Chain = Parts[i].getValue(1); 615d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 61669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 617d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Handle endianness of the load. 618d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands if (TLI.isBigEndian()) 619d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands std::reverse(Parts.begin(), Parts.end()); 62069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 621d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Assemble the parts in the promoted type. 622d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 623786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[0]); 624d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 1; i < NumRegs; ++i) { 625786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Part = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[i]); 626d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Shift it to the right position and "or" it in. 627786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Part = DAG.getNode(ISD::SHL, dl, NVT, Part, 628d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands DAG.getConstant(i * RegVT.getSizeInBits(), 62992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 630786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res = DAG.getNode(ISD::OR, dl, NVT, Res, Part); 631d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 63269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 633d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Modified the chain result - switch anything that used the old chain to 634bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 635d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands ReplaceValueWith(SDValue(N, 1), Chain); 636d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 637d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands return Res; 63869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 63969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 640ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_XMULO(SDNode *N, unsigned ResNo) { 641ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands assert(ResNo == 1 && "Only boolean result promotion currently supported!"); 642ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 643ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 6447fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 645bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 646bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands// Integer Operand Promotion 647bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 6487fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 649bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// PromoteIntegerOperand - This method is called when the specified operand of 650bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// the specified node is found to need promotion. At this point, all of the 651bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// result types of the node are known to be legal, but other operands of the 652bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// node may need promotion or expansion as well as the specified one. 653bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sandsbool DAGTypeLegalizer::PromoteIntegerOperand(SDNode *N, unsigned OpNo) { 654bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DEBUG(cerr << "Promote integer operand: "; N->dump(&DAG); cerr << "\n"); 655475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 6567fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 6579fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (CustomLowerResults(N, N->getOperand(OpNo).getValueType(), false)) 658bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 65969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 660bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 661bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 662bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #ifndef NDEBUG 663bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta cerr << "PromoteIntegerOperand Op #" << OpNo << ": "; 664bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta N->dump(&DAG); cerr << "\n"; 665bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #endif 666bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta assert(0 && "Do not know how to promote this operator's operand!"); 667bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta abort(); 668bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 669bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ANY_EXTEND: Res = PromoteIntOp_ANY_EXTEND(N); break; 670bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BR_CC: Res = PromoteIntOp_BR_CC(N, OpNo); break; 671bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BRCOND: Res = PromoteIntOp_BRCOND(N, OpNo); break; 672bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_PAIR: Res = PromoteIntOp_BUILD_PAIR(N); break; 673bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_VECTOR: Res = PromoteIntOp_BUILD_VECTOR(N); break; 674bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::CONVERT_RNDSAT: 675bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_CONVERT_RNDSAT(N); break; 676bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: 677bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_INSERT_VECTOR_ELT(N, OpNo);break; 678bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::MEMBARRIER: Res = PromoteIntOp_MEMBARRIER(N); break; 679bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT: Res = PromoteIntOp_SELECT(N, OpNo); break; 680bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT_CC: Res = PromoteIntOp_SELECT_CC(N, OpNo); break; 681bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SETCC: Res = PromoteIntOp_SETCC(N, OpNo); break; 682bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SIGN_EXTEND: Res = PromoteIntOp_SIGN_EXTEND(N); break; 683bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SINT_TO_FP: Res = PromoteIntOp_SINT_TO_FP(N); break; 684bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::STORE: Res = PromoteIntOp_STORE(cast<StoreSDNode>(N), 685bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta OpNo); break; 686bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::TRUNCATE: Res = PromoteIntOp_TRUNCATE(N); break; 687bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::UINT_TO_FP: Res = PromoteIntOp_UINT_TO_FP(N); break; 688bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ZERO_EXTEND: Res = PromoteIntOp_ZERO_EXTEND(N); break; 68955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 69055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 69155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 69255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 69355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 69455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = PromoteIntOp_Shift(N); break; 695bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta } 6969fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands 697bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result is null, the sub-method took care of registering results etc. 6989fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (!Res.getNode()) return false; 69947d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 70047d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 70147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 70247d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 703bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return true; 704bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 705bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 706bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands "Invalid operand expansion"); 707bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 708475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 709bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return false; 71069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 71169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 71269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteSetCCOperands - Promote the operands of a comparison. This code is 71369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// shared among BR_CC, SELECT_CC, and SETCC handlers. 714475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::PromoteSetCCOperands(SDValue &NewLHS,SDValue &NewRHS, 71569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands ISD::CondCode CCCode) { 716cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // We have to insert explicit sign or zero extends. Note that we could 717cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // insert sign extends for ALL conditions, but zero extend is cheaper on 718cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // many machines (an AND instead of two shifts), so prefer it. 71969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (CCCode) { 72069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: assert(0 && "Unknown integer comparison!"); 72169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETEQ: 72269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETNE: 72369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGE: 72469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGT: 72569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULE: 72669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULT: 72769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // ALL of these operations will work if we either sign or zero extend 72869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the operands (including the unsigned comparisons!). Zero extend is 72969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // usually a simpler/cheaper operation, so prefer it. 730c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = ZExtPromotedInteger(NewLHS); 731c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = ZExtPromotedInteger(NewRHS); 73211ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 73369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGE: 73469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGT: 73569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLT: 73669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLE: 737c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = SExtPromotedInteger(NewLHS); 738c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = SExtPromotedInteger(NewRHS); 73911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 74069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 74169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 74269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 743475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ANY_EXTEND(SDNode *N) { 744475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 745786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), N->getValueType(0), Op); 746bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 74769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 748475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo) { 749bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 2 && "Don't know how to promote this operand!"); 75069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 751475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(2); 752475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(3); 753bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(1))->get()); 75469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 755bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0), CC (#1) and basic block destination (Op#4) are always 756bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal types. 757475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 758bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 759bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 760bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 761475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo) { 762bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 1 && "only know how to promote condition"); 763bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 764b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 7655480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands MVT SVT = TLI.getSetCCResultType(MVT::Other); 766b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(1), SVT); 767bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 768bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0) and basic block destination (Op#2) are always legal types. 769475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), Cond, 770bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(2)); 771bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 772bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 773475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_PAIR(SDNode *N) { 774bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Since the result type is legal, the operands must promote to it. 775bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT OVT = N->getOperand(0).getValueType(); 776c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Lo = ZExtPromotedInteger(N->getOperand(0)); 777475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = GetPromotedInteger(N->getOperand(1)); 778bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Lo.getValueType() == N->getValueType(0) && "Operand over promoted?"); 779786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 780bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 781786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, N->getValueType(0), Hi, 78292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(OVT.getSizeInBits(), TLI.getPointerTy())); 783786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::OR, dl, N->getValueType(0), Lo, Hi); 78469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 78569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 786475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_VECTOR(SDNode *N) { 78769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The vector type is legal but the element type is not. This implies 78869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // that the vector is a power-of-two in length and that the element 78969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // type does not have a strange size (eg: it is not i1). 79069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT VecVT = N->getValueType(0); 79169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned NumElts = VecVT.getVectorNumElements(); 79269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(NumElts & 1) && "Legal vector of one illegal element?"); 793786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 79469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 79569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Build a vector of half the length out of elements of twice the bitwidth. 79669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // For example <4 x i16> -> <2 x i32>. 79769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT OldVT = N->getOperand(0).getValueType(); 79869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT NewVT = MVT::getIntegerVT(2 * OldVT.getSizeInBits()); 79969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OldVT.isSimple() && NewVT.isSimple()); 80069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 801475871a144eb604ddaf37503397ba0941442e5fbDan Gohman std::vector<SDValue> NewElts; 80269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewElts.reserve(NumElts/2); 80369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 80469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 0; i < NumElts; i += 2) { 80569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Combine two successive elements into one promoted element. 806475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo = N->getOperand(i); 807475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = N->getOperand(i+1); 80869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 80969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 81069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewElts.push_back(JoinIntegers(Lo, Hi)); 81169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 81269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 813786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue NewVec = DAG.getNode(ISD::BUILD_VECTOR, dl, 81469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT::getVectorVT(NewVT, NewElts.size()), 81569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands &NewElts[0], NewElts.size()); 81669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 81769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert the new vector to the old vector type. 818786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::BIT_CONVERT, dl, VecVT, NewVec); 81969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 82069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 82128088d3c049017a131aa7b07201c6e19c0227cefMon P WangSDValue DAGTypeLegalizer::PromoteIntOp_CONVERT_RNDSAT(SDNode *N) { 82228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 82328088d3c049017a131aa7b07201c6e19c0227cefMon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 82428088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 82528088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_FS || CvtCode == ISD::CVT_FU) && 82628088d3c049017a131aa7b07201c6e19c0227cefMon P Wang "can only promote integer arguments"); 82728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang SDValue InOp = GetPromotedInteger(N->getOperand(0)); 828c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(N->getValueType(0), N->getDebugLoc(), InOp, 82928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(1), N->getOperand(2), 83028088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 83128088d3c049017a131aa7b07201c6e19c0227cefMon P Wang} 83228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang 833475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, 834475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned OpNo) { 83569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OpNo == 1) { 83669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the inserted value. This is valid because the type does not 83769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // have to match the vector element type. 83869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 83969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Check that any extra bits introduced will be truncated away. 84069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(N->getOperand(1).getValueType().getSizeInBits() >= 84169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getValueType(0).getVectorElementType().getSizeInBits() && 84269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Type of inserted value narrower than vector element type!"); 843475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 84469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetPromotedInteger(N->getOperand(1)), 84569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getOperand(2)); 84669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 84769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 84869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OpNo == 2 && "Different operand and result vector types?"); 84969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 85069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the index. 851c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Idx = ZExtPromotedInteger(N->getOperand(2)); 852475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 85369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getOperand(1), Idx); 85469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 85569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 856475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_MEMBARRIER(SDNode *N) { 857475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewOps[6]; 8584be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 85969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewOps[0] = N->getOperand(0); 86069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 1; i < array_lengthof(NewOps); ++i) { 861475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag = GetPromotedInteger(N->getOperand(i)); 8624be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen NewOps[i] = DAG.getZeroExtendInReg(Flag, dl, MVT::i1); 86369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 864475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue (N, 0), NewOps, 86569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands array_lengthof(NewOps)); 86669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 86769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 868475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT(SDNode *N, unsigned OpNo) { 869bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Only know how to promote condition"); 8707e4982287591945c4e42ba8470a978e629789c76Duncan Sands 871b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 8725480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands MVT SVT = TLI.getSetCCResultType(N->getOperand(1).getValueType()); 873b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(0), SVT); 874bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 8757e4982287591945c4e42ba8470a978e629789c76Duncan Sands return DAG.UpdateNodeOperands(SDValue(N, 0), Cond, 8767e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 877bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 878bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 879475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo) { 880bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 881bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 882475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 883475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 884bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(4))->get()); 885bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 886bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#4) and the possible return values (#2 and #3) have legal types. 887475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), LHS, RHS, N->getOperand(2), 888bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(3), N->getOperand(4)); 889bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 890bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 891475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SETCC(SDNode *N, unsigned OpNo) { 892bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 893bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 894475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 895475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 896bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get()); 897bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 898bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#2) is always legal. 899475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), LHS, RHS, N->getOperand(2)); 900bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 901bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 90255467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::PromoteIntOp_Shift(SDNode *N) { 90355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 90455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta ZExtPromotedInteger(N->getOperand(1))); 90555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 90655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 907475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SIGN_EXTEND(SDNode *N) { 908475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 909786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 910786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 911786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), 912bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Op, DAG.getValueType(N->getOperand(0).getValueType())); 913bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 914bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 915c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_SINT_TO_FP(SDNode *N) { 916c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands return DAG.UpdateNodeOperands(SDValue(N, 0), 917c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SExtPromotedInteger(N->getOperand(0))); 918c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 919c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 920475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){ 921bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 922475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(), Ptr = N->getBasePtr(); 923bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands int SVOffset = N->getSrcValueOffset(); 924bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Alignment = N->getAlignment(); 925bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands bool isVolatile = N->isVolatile(); 926786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 927bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 928475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = GetPromotedInteger(N->getValue()); // Get promoted value. 929bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 930bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate the value and store the result. 931786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getTruncStore(Ch, dl, Val, Ptr, N->getSrcValue(), 932bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands SVOffset, N->getMemoryVT(), 933bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands isVolatile, Alignment); 934bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 935bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 936475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_TRUNCATE(SDNode *N) { 937475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 938786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), Op); 939bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 940bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 941c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_UINT_TO_FP(SDNode *N) { 942c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands return DAG.UpdateNodeOperands(SDValue(N, 0), 943c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands ZExtPromotedInteger(N->getOperand(0))); 944c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 945c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 946475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ZERO_EXTEND(SDNode *N) { 9474be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 948475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 9494be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 9504be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen return DAG.getZeroExtendInReg(Op, dl, N->getOperand(0).getValueType()); 951bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 952bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 95369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 95469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 95569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Expansion 95669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 95769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 95869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// ExpandIntegerResult - This method is called when the specified result of the 959cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// specified node is found to need expansion. At this point, the node may also 960cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// have invalid operands or may have other results that need promotion, we just 961cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// know that (at least) one result needs expansion. 96269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) { 96369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DEBUG(cerr << "Expand integer result: "; N->dump(&DAG); cerr << "\n"); 964475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 965475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Lo = Hi = SDValue(); 966cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 967cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // See if the target wants to custom expand this node. 9689fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (CustomLowerResults(N, N->getValueType(ResNo), true)) 9691607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 970cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 971cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (N->getOpcode()) { 972cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: 973cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#ifndef NDEBUG 97469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands cerr << "ExpandIntegerResult #" << ResNo << ": "; 975cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner N->dump(&DAG); cerr << "\n"; 976cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#endif 97778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(0 && "Do not know how to expand the result of this operator!"); 978cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner abort(); 97969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 98078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, Lo, Hi); break; 98178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break; 98278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break; 98378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break; 98478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 98578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BIT_CONVERT: ExpandRes_BIT_CONVERT(N, Lo, Hi); break; 98678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break; 9874a307ecce68f90e0eebf1ded52b947816cdc2304Duncan Sands case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break; 98878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break; 98921c2972f7d24680f6475877a3398b7f8cf515b33Duncan Sands case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break; 99078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 99169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ANY_EXTEND: ExpandIntRes_ANY_EXTEND(N, Lo, Hi); break; 99295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands case ISD::AssertSext: ExpandIntRes_AssertSext(N, Lo, Hi); break; 99369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AssertZext: ExpandIntRes_AssertZext(N, Lo, Hi); break; 99405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::BSWAP: ExpandIntRes_BSWAP(N, Lo, Hi); break; 99505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::Constant: ExpandIntRes_Constant(N, Lo, Hi); break; 99605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTLZ: ExpandIntRes_CTLZ(N, Lo, Hi); break; 99705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTPOP: ExpandIntRes_CTPOP(N, Lo, Hi); break; 99805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTTZ: ExpandIntRes_CTTZ(N, Lo, Hi); break; 99969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: ExpandIntRes_FP_TO_SINT(N, Lo, Hi); break; 100069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_UINT: ExpandIntRes_FP_TO_UINT(N, Lo, Hi); break; 100169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::LOAD: ExpandIntRes_LOAD(cast<LoadSDNode>(N), Lo, Hi); break; 100205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::MUL: ExpandIntRes_MUL(N, Lo, Hi); break; 100305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SDIV: ExpandIntRes_SDIV(N, Lo, Hi); break; 100405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND: ExpandIntRes_SIGN_EXTEND(N, Lo, Hi); break; 100505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND_INREG: ExpandIntRes_SIGN_EXTEND_INREG(N, Lo, Hi); break; 100605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SREM: ExpandIntRes_SREM(N, Lo, Hi); break; 100705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::TRUNCATE: ExpandIntRes_TRUNCATE(N, Lo, Hi); break; 100805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UDIV: ExpandIntRes_UDIV(N, Lo, Hi); break; 100905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UREM: ExpandIntRes_UREM(N, Lo, Hi); break; 101005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::ZERO_EXTEND: ExpandIntRes_ZERO_EXTEND(N, Lo, Hi); break; 101169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1012cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::AND: 1013cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::OR: 101405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::XOR: ExpandIntRes_Logical(N, Lo, Hi); break; 101505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1016cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADD: 101705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUB: ExpandIntRes_ADDSUB(N, Lo, Hi); break; 101805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1019cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDC: 102005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBC: ExpandIntRes_ADDSUBC(N, Lo, Hi); break; 102105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1022cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDE: 102305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBE: ExpandIntRes_ADDSUBE(N, Lo, Hi); break; 102405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1025cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SHL: 1026cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SRA: 102705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: ExpandIntRes_Shift(N, Lo, Hi); break; 1028cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1029d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1030cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If Lo/Hi is null, the sub-method took care of registering results etc. 1031ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Lo.getNode()) 1032475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SetExpandedInteger(SDValue(N, ResNo), Lo, Hi); 1033cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1034cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 103505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftByConstant - N is a shift by a value that needs to be expanded, 103605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// and the shift amount is a constant 'Amt'. Expand the operation. 103705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandShiftByConstant(SDNode *N, unsigned Amt, 1038475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1039786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 104005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the incoming operand to be shifted, so that we have its parts 1041475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 104205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1043cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 104405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = InL.getValueType(); 104505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned VTBits = N->getValueType(0).getSizeInBits(); 104605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 104705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT ShTy = N->getOperand(1).getValueType(); 1048cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 104905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SHL) { 105005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 105105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = Hi = DAG.getConstant(0, NVT); 105205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 105305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 10547fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ISD::SHL, dl, 1055786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InL, DAG.getConstant(Amt-NVTBits,ShTy)); 105605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 105705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 105805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = InL; 1059104de6cf7b80ec5e9beb502a069f376810a0a1e3Richard Osborne } else if (Amt == 1 && 1060f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::ADDC, 1061f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.getTypeToExpandTo(NVT))) { 106205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Emit this X << 1 as X+X. 106305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SDVTList VTList = DAG.getVTList(NVT, MVT::Flag); 1064475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { InL, InL }; 1065786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 1066475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { InH, InH, Lo.getValue(1) }; 1067786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 106805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1069786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SHL, dl, NVT, InL, DAG.getConstant(Amt, ShTy)); 1070786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::OR, dl, NVT, 1071786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, InH, 107205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1073786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SRL, dl, NVT, InL, 107405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 107505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 107605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1077cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1078cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 107905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SRL) { 108005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 108105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 108205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 108305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 10847fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Lo = DAG.getNode(ISD::SRL, dl, 1085786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InH, DAG.getConstant(Amt-NVTBits,ShTy)); 108605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 108705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 108805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 108905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 109005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1091786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, 1092786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SRL, dl, NVT, InL, 109305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1094786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, InH, 109505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1096786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, NVT, InH, DAG.getConstant(Amt, ShTy)); 109705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 109805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1099cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1100d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 110105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 110205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 1103786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, 110405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 110505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1106786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, 110705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt-NVTBits, ShTy)); 1108786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, 110905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 111005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 111105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 1112786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, 111305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1114d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } else { 1115de06470330260f5937e7ca558f5f5b3e171f2ee5Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, 1116786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SRL, dl, NVT, InL, 111705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1118786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, InH, 111905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1120786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, DAG.getConstant(Amt, ShTy)); 1121d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } 1122d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands} 1123d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 112405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftWithKnownAmountBit - Try to determine whether we can simplify 112505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// this shift based on knowledge of the high bit of the shift amount. If we 112605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// can tell this, we know that it is >= 32 or < 32, without knowing the actual 112705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// shift amount. 112805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer:: 1129475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 1130475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt = N->getOperand(1); 113183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 113205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT ShTy = Amt.getValueType(); 113305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ShBits = ShTy.getSizeInBits(); 113405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 113505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(isPowerOf2_32(NVTBits) && 113605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Expanded integer type size not a power of two!"); 1137786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1138cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 113905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt HighBitMask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 114005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt KnownZero, KnownOne; 114105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.ComputeMaskedBits(N->getOperand(1), HighBitMask, KnownZero, KnownOne); 1142cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 114305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we don't know anything about the high bits, exit. 114405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (((KnownZero|KnownOne) & HighBitMask) == 0) 114505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1146cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 114705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get the incoming operand to be shifted. 1148475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 114905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1150be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 115105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that any of the high bits of the shift amount are one, then we 115205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 115305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (KnownOne.intersects(HighBitMask)) { 115405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Mask out the high bit, which we know is set. 1155786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Amt = DAG.getNode(ISD::AND, dl, ShTy, Amt, 115605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(~HighBitMask, ShTy)); 115705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 115805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 115905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands default: assert(0 && "Unknown shift"); 116005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: 116105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); // Low part is zero. 1162786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 116305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 116405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 116505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // Hi part is zero. 1166786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 116705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 116805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: 1169786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 117005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1171786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 117205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 117305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 117405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 117505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 117628dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#if 0 117728dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman // FIXME: This code is broken for shifts with a zero amount! 117805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that all of the high bits of the shift amount are zero, then we 117905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 118005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if ((KnownZero & HighBitMask) == HighBitMask) { 118105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Compute 32-amt. 1182475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt2 = DAG.getNode(ISD::SUB, ShTy, 118305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits, ShTy), 118405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Amt); 118505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned Op1, Op2; 118605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 118705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands default: assert(0 && "Unknown shift"); 118805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: Op1 = ISD::SHL; Op2 = ISD::SRL; break; 118905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 119005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: Op1 = ISD::SRL; Op2 = ISD::SHL; break; 119105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 119205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 119305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getNode(N->getOpcode(), NVT, InL, Amt); 119405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getNode(ISD::OR, NVT, 119505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op1, NVT, InH, Amt), 119605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op2, NVT, InL, Amt2)); 119705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 119805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 119928dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#endif 120005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 120105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 120205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 120305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 120405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUB(SDNode *N, 1205475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1206786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 120705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1208475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 120905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 121005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 121129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 121229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands MVT NVT = LHSL.getValueType(); 1213475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1214475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 121505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 121629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // Do not generate ADDC/ADDE or SUBC/SUBE if the target does not support 121729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // them. TODO: Teach operation legalization how to expand unsupported 121829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // ADDC/ADDE/SUBC/SUBE. The problem is that these operations generate 121929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // a carry of type MVT::Flag, but there doesn't seem to be any way to 122029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // generate a value of this type in the expanded code sequence. 122129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands bool hasCarry = 1222f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(N->getOpcode() == ISD::ADD ? 1223f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman ISD::ADDC : ISD::SUBC, 1224f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.getTypeToExpandTo(NVT)); 122529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 122629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (hasCarry) { 1227245146b58a2188eb69bcb34fc2bdf57ebbcfb278Duncan Sands SDVTList VTList = DAG.getVTList(NVT, MVT::Flag); 122829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1229786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 123029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1231786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 123229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1233786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 123429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1235786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 123629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 123705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 123829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1239786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, LoOps, 2); 1240786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, HiOps, 2); 1241786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Cmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[0], 124229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands ISD::SETULT); 1243786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Carry1 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp1, 124429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(1, NVT), 124529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(0, NVT)); 1246786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Cmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[1], 124729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands ISD::SETULT); 1248786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Carry2 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp2, 124929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(1, NVT), Carry1); 1250786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, Carry2); 125129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1252786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUB, dl, NVT, LoOps, 2); 1253786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUB, dl, NVT, HiOps, 2); 12545480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands SDValue Cmp = 1255f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen DAG.getSetCC(dl, TLI.getSetCCResultType(LoOps[0].getValueType()), 12565480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LoOps[0], LoOps[1], ISD::SETULT); 1257786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Borrow = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, 125829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(1, NVT), 125929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(0, NVT)); 1260786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUB, dl, NVT, Hi, Borrow); 126129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 126205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 126305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 126405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 126505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBC(SDNode *N, 1266475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 126705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1268475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1269786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 127005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 127105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 127205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 1273475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1274475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 127505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 127605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::ADDC) { 1277786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 127805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1279786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 128005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1281786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 128205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1283786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 128405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 128505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 128605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Legalized the flag result - switch anything that used the old flag to 128705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // use the new one. 1288475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 128905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 129005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 129105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBE(SDNode *N, 1292475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 129305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1294475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1295786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 129605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 129705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 129805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 1299475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, N->getOperand(2) }; 1300475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 130105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1302786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, VTList, LoOps, 3); 130305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1304786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, VTList, HiOps, 3); 130505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 130605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Legalized the flag result - switch anything that used the old flag to 130705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // use the new one. 1308475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 130905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 131005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 131105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ANY_EXTEND(SDNode *N, 1312475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 131305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 1314786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1315475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 131605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 131705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The low part is any extension of the input (which degenerates to a copy). 1318786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ANY_EXTEND, dl, NVT, Op); 1319e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); // The high part is undefined. 132005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 132105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 132205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 132305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 132405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1325475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 132605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 132705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 132805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 132905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 133005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 133105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 133205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 133395db39a9de48f69f4d764335b492b83a698c7854Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertSext(SDNode *N, 1334475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1335786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 133695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 133795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands MVT NVT = Lo.getValueType(); 133895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands MVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 133995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned NVTBits = NVT.getSizeInBits(); 134095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned EVTBits = EVT.getSizeInBits(); 134195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 134295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands if (NVTBits < EVTBits) { 1343786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertSext, dl, NVT, Hi, 134495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands DAG.getValueType(MVT::getIntegerVT(EVTBits - NVTBits))); 134595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } else { 1346786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertSext, dl, NVT, Lo, DAG.getValueType(EVT)); 134795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // The high part replicates the sign bit of Lo, make it explicit. 1348786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 134992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVTBits-1, TLI.getPointerTy())); 135095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } 135195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 135295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 135305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertZext(SDNode *N, 1354475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1355786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 135605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 135705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = Lo.getValueType(); 135805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 135905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 136005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned EVTBits = EVT.getSizeInBits(); 136105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 136205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (NVTBits < EVTBits) { 1363786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertZext, dl, NVT, Hi, 136405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getValueType(MVT::getIntegerVT(EVTBits - NVTBits))); 136505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1366786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertZext, dl, NVT, Lo, DAG.getValueType(EVT)); 136705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part must be zero, make it explicit. 136805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 136905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 137005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 137105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 137205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_BSWAP(SDNode *N, 1373475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1374786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 137505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Hi, Lo); // Note swapped operands. 1376786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::BSWAP, dl, Lo.getValueType(), Lo); 1377786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::BSWAP, dl, Hi.getValueType(), Hi); 137805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 137905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 138005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Constant(SDNode *N, 1381475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 138205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 138305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NBitWidth = NVT.getSizeInBits(); 138405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const APInt &Cst = cast<ConstantSDNode>(N)->getAPIntValue(); 138505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(APInt(Cst).trunc(NBitWidth), NVT); 138605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(Cst.lshr(NBitWidth).trunc(NBitWidth), NVT); 138705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 138805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 138905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTLZ(SDNode *N, 1390475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1391786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 139205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctlz (HiLo) -> Hi != 0 ? ctlz(Hi) : (ctlz(Lo)+32) 139305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 139405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = Lo.getValueType(); 139505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1396786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Hi, 1397ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 139805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1399786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Lo); 1400786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Hi); 140105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1402786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, HiNotZero, HiLZ, 1403786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, LoLZ, 140405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 140505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 140605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 140705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 140805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTPOP(SDNode *N, 1409475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1410786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 141105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctpop(HiLo) -> ctpop(Hi)+ctpop(Lo) 141205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 141305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = Lo.getValueType(); 1414b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, DAG.getNode(ISD::CTPOP, dl, NVT, Lo), 1415786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::CTPOP, dl, NVT, Hi)); 141605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 141705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 141805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 141905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTTZ(SDNode *N, 1420475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1421786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 142205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // cttz (HiLo) -> Lo != 0 ? cttz(Lo) : (cttz(Hi)+32) 142305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 142405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = Lo.getValueType(); 142505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1426786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, 1427ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 142805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1429786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Lo); 1430786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Hi); 143105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1432786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, LoNotZero, LoLZ, 1433786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, HiLZ, 143405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 143505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 143605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 143705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1438475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo, 1439475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1440c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 144105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 1442475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1443b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT); 1444be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!"); 1445c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, true/*irrelevant*/, dl), Lo, Hi); 1446ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1447ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 1448475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo, 1449475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1450c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 145183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = N->getValueType(0); 1452475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1453b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Op.getValueType(), VT); 1454be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 1455c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, false/*irrelevant*/, dl), Lo, Hi); 1456ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1457ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 145869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N, 1459475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1460ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalLoad(N)) { 1461ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands ExpandRes_NormalLoad(N, Lo, Hi); 146278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands return; 146378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands } 146478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 146578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 146678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 146783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = N->getValueType(0); 146883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 1469475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 1470475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 1471cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::LoadExtType ExtType = N->getExtensionType(); 1472cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner int SVOffset = N->getSrcValueOffset(); 1473cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 1474cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 1475786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1476cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 147778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 1478cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 147978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 148083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = N->getMemoryVT(); 1481cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1482786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getSrcValue(), SVOffset, 1483786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen EVT, isVolatile, Alignment); 1484cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1485cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Remember the chain. 1486cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Ch = Lo.getValue(1); 1487cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1488cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExtType == ISD::SEXTLOAD) { 1489cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is obtained by SRA'ing all but one of the bits of the 1490cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // lo part. 149183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 1492786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 149392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 1494cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (ExtType == ISD::ZEXTLOAD) { 1495cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is just a zero. 1496cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = DAG.getConstant(0, NVT); 1497cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1498cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(ExtType == ISD::EXTLOAD && "Unknown extload!"); 1499cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is undefined. 1500e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); 1501cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1502cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 1503cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 1504786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getLoad(NVT, dl, Ch, Ptr, N->getSrcValue(), SVOffset, 1505cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, Alignment); 1506cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1507cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 150883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 150983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NEVT = MVT::getIntegerVT(ExcessBits); 1510cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1511cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 151283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1513786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 15140bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1515786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getSrcValue(), 1516cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner SVOffset+IncrementSize, NEVT, 1517cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, MinAlign(Alignment, IncrementSize)); 1518cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1519cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1520cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1521786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1522cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1523cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1524cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned loads at 1525cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 152683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = N->getMemoryVT(); 152783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EBytes = EVT.getStoreSizeInBits()/8; 152883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1529cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 1530cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1531cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load both the high bits and maybe some of the low bits. 1532786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getSrcValue(), SVOffset, 153383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntegerVT(EVT.getSizeInBits() - ExcessBits), 1534cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, Alignment); 1535cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1536cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 1537786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 15380bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1539cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load the rest of the low bits. 1540786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr, N->getSrcValue(), 154183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SVOffset+IncrementSize, 154283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntegerVT(ExcessBits), 1543cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, MinAlign(Alignment, IncrementSize)); 1544cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1545cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1546cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1547786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1548cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1549cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 155083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 1551cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer low bits from the bottom of Hi to the top of Lo. 1552786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, Lo, 1553786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, Hi, 1554cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 155592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 1556cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Move high bits to the right position in Hi. 15577fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ExtType == ISD::SEXTLOAD ? ISD::SRA : ISD::SRL, dl, 1558786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, Hi, 155983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 156092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 1561cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1562cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1563cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1564cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Legalized the chain result - switch anything that used the old chain to 1565cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // use the new one. 1566475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Ch); 1567cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1568cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 156969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Logical(SDNode *N, 1570475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1571786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1572475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 157369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 157469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 1575786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LL, RL); 1576786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LH, RH); 1577cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1578cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 157905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N, 1580475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 158105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 158205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 1583c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 158469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1585f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, NVT); 1586f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, NVT); 1587f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, NVT); 1588f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, NVT); 1589cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 1590475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 159169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 159269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 159383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned OuterBitSize = VT.getSizeInBits(); 1594e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands unsigned InnerBitSize = NVT.getSizeInBits(); 1595cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned LHSSB = DAG.ComputeNumSignBits(N->getOperand(0)); 1596cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned RHSSB = DAG.ComputeNumSignBits(N->getOperand(1)); 159769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1598e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 1599e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (DAG.MaskedValueIsZero(N->getOperand(0), HighMask) && 1600e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands DAG.MaskedValueIsZero(N->getOperand(1), HighMask)) { 1601cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The inputs are both zero-extended. 1602cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1603cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a umul_lohi. 1604786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::UMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1605ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1606cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1607cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1608cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU) { 1609cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhu+mul. 1610786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1611786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1612cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1613cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1614cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1615e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 1616cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The input values are both sign-extended. 1617cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasSMUL_LOHI) { 1618cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a smul_lohi. 1619786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1620ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1621cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1622cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1623cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHS) { 1624cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhs+mul. 1625786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1626786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHS, dl, NVT, LL, RL); 1627cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1628cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1629cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1630cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1631cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Lo,Hi = umul LHS, RHS. 1632786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, dl, 1633cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getVTList(NVT, NVT), LL, RL); 1634cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Lo = UMulLOHI; 1635cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = UMulLOHI.getValue(1); 1636786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1637786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1638786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1639786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1640cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1641cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1642e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (HasMULHU) { 1643786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1644786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1645786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1646786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1647786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1648786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1649e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands return; 1650e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands } 1651cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 165241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1653cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If nothing else, we can make a libcall. 16545ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 165515c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta if (VT == MVT::i16) 165615c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::MUL_I16; 165715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta else if (VT == MVT::i32) 16585ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I32; 16595ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands else if (VT == MVT::i64) 1660e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands LC = RTLIB::MUL_I64; 16615ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands else if (VT == MVT::i128) 16625ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I128; 16635ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"); 1664e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands 1665475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1666c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true/*irrelevant*/, dl), Lo, Hi); 166741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1668cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 166969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N, 1670475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 16715ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands MVT VT = N->getValueType(0); 1672c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 16735ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 16745ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 16755ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands if (VT == MVT::i32) 16765ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I32; 16775ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands else if (VT == MVT::i64) 16785ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I64; 16795ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands else if (VT == MVT::i128) 16805ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I128; 16815ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!"); 16825ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 1683475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1684c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 1685ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1686ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 168769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N, 1688475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 168983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = N->getValueType(0); 1690c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 169169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 169269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // If we can emit an efficient shift operation, do so now. Check to see if 1693cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the RHS is a constant. 1694cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1))) 1695f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman return ExpandShiftByConstant(N, CN->getZExtValue(), Lo, Hi); 1696cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1697cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If we can determine that the high bit of the shift is zero or one, even if 1698cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the low bits are variable, emit this shift in an optimized form. 1699cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExpandShiftWithKnownAmountBit(N, Lo, Hi)) 1700cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 170169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1702cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this target supports shift_PARTS, use it. First, map to the _PARTS opc. 1703cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned PartsOpc; 170441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 1705cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SHL_PARTS; 170641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 1707cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRL_PARTS; 170841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 1709cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 1710cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRA_PARTS; 1711cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 171269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1713cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Next check to see if the target supports this SHL_PARTS operation or if it 1714cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // will custom expand it. 171583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 1716cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::LegalizeAction Action = TLI.getOperationAction(PartsOpc, NVT); 1717cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 1718cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Action == TargetLowering::Custom) { 1719cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Expand the subcomponents. 1720475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 172169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 172269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1723475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, N->getOperand(1) }; 172483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHSL.getValueType(); 1725786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(PartsOpc, dl, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); 1726cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = Lo.getValue(1); 1727cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1728cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 172941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1730cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Otherwise, emit a libcall. 1731dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 173241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands bool isSigned; 173341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 173441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; /*sign irrelevant*/ 173515c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta if (VT == MVT::i16) 173615c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SHL_I16; 173715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta else if (VT == MVT::i32) 1738dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I32; 1739dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i64) 1740dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I64; 1741dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i128) 1742dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I128; 174341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 174441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; 174515c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta if (VT == MVT::i16) 174615c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRL_I16; 174715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta else if (VT == MVT::i32) 1748dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I32; 1749dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i64) 1750dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I64; 1751dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i128) 1752dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I128; 175341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 175441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 175541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = true; 175615c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta if (VT == MVT::i16) 175715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRA_I16; 175815c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta else if (VT == MVT::i32) 1759dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I32; 1760dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i64) 1761dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I64; 1762dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i128) 1763dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I128; 176441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } 1765dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported shift!"); 176641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1767475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1768c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, isSigned, dl), Lo, Hi); 176941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1770cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 177105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SIGN_EXTEND(SDNode *N, 1772475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 177305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 1774786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1775475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 177605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 1777b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is sign extension of the input (degenerates to a copy). 1778786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND, dl, NVT, N->getOperand(0)); 177905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part is obtained by SRA'ing all but one of the bits of low part. 178005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned LoSize = NVT.getSizeInBits(); 1781786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 178292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 178305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 178405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 178505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 178605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 178705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1788475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 178905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 179005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 179105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 179205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 179305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 179405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 1795786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 179605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getValueType(MVT::getIntegerVT(ExcessBits))); 179705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 179805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 179905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 180005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer:: 1801475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi) { 1802786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 180369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 180405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 1805d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 180605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (EVT.bitsLE(Lo.getValueType())) { 180705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the low part if needed. 1808786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Lo.getValueType(), Lo, 180905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(1)); 1810d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 181105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part gets the sign extension from the lo-part. This handles 181205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // things like sextinreg V:i64 from i8. 1813786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, Hi.getValueType(), Lo, 181405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Hi.getValueType().getSizeInBits()-1, 181592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 181605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 181705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. Leave the low part alone, 181805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the high part. 181905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 182005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands EVT.getSizeInBits() - Lo.getValueType().getSizeInBits(); 1821786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 182205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getValueType(MVT::getIntegerVT(ExcessBits))); 182305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 182405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 1825d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 182605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N, 1827475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 182805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 1829c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 183005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 183105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 183205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (VT == MVT::i32) 183305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I32; 183405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i64) 183505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I64; 183605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i128) 183705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I128; 183805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!"); 183905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1840475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1841c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 1842d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 1843d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 184405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N, 1845475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 184605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 1847786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1848786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::TRUNCATE, dl, NVT, N->getOperand(0)); 1849786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, 1850786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getOperand(0).getValueType(), N->getOperand(0), 185192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVT.getSizeInBits(), TLI.getPointerTy())); 1852786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::TRUNCATE, dl, NVT, Hi); 1853d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 1854d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 185505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N, 1856475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 185705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 1858c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1859d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 186005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 186105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (VT == MVT::i32) 186205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I32; 186305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i64) 186405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I64; 186505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i128) 186605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I128; 186705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!"); 1868d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1869475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1870c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 1871d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 1872cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 187305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N, 1874475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 187505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 1876c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 187769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 187805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 187905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (VT == MVT::i32) 188005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I32; 188105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i64) 188205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I64; 188305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i128) 188405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I128; 188505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!"); 1886cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1887475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1888c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 1889cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1890cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 189105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N, 1892475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 189383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 1894786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1895475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 189605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 1897b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is zero extension of the input (degenerates to a copy). 1898786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N->getOperand(0)); 189905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // The high part is just a zero. 190005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 190105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 190205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 190305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 190405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1905475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 190605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 190705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 190805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 190905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 191005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 191105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 19124be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Hi = DAG.getZeroExtendInReg(Hi, dl, MVT::getIntegerVT(ExcessBits)); 19139e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman } 1914cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1915cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1916cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1917cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 191869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Operand Expansion 1919cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 1920cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 192105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandIntegerOperand - This method is called when the specified operand of 192205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// the specified node is found to need expansion. At this point, all of the 192305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// result types of the node are known to be legal, but other operands of the 192405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// node may need promotion or expansion as well as the specified one. 192505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer::ExpandIntegerOperand(SDNode *N, unsigned OpNo) { 192605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DEBUG(cerr << "Expand integer operand: "; N->dump(&DAG); cerr << "\n"); 1927475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 1928051bb7b07504be9f848f7cce802e62ed24980bc5Duncan Sands 19299fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (CustomLowerResults(N, N->getOperand(OpNo).getValueType(), false)) 1930bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 193111ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands 1932bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 1933bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 193405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #ifndef NDEBUG 1935bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta cerr << "ExpandIntegerOperand Op #" << OpNo << ": "; 1936bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta N->dump(&DAG); cerr << "\n"; 193705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #endif 1938bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta assert(0 && "Do not know how to expand this operator's operand!"); 1939bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta abort(); 1940bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta 1941bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BIT_CONVERT: Res = ExpandOp_BIT_CONVERT(N); break; 194292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BR_CC: Res = ExpandIntOp_BR_CC(N); break; 194392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break; 1944bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break; 1945bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: Res = ExpandOp_INSERT_VECTOR_ELT(N); break; 1946bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SCALAR_TO_VECTOR: Res = ExpandOp_SCALAR_TO_VECTOR(N); break; 194792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SELECT_CC: Res = ExpandIntOp_SELECT_CC(N); break; 194892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SETCC: Res = ExpandIntOp_SETCC(N); break; 194992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SINT_TO_FP: Res = ExpandIntOp_SINT_TO_FP(N); break; 195092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::STORE: Res = ExpandIntOp_STORE(cast<StoreSDNode>(N), OpNo); break; 195192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::TRUNCATE: Res = ExpandIntOp_TRUNCATE(N); break; 195292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::UINT_TO_FP: Res = ExpandIntOp_UINT_TO_FP(N); break; 195355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 195455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 195555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 195655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 195755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 195855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = ExpandIntOp_Shift(N); break; 195905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 196069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 196105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If the result is null, the sub-method took care of registering results etc. 1962ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Res.getNode()) return false; 196347d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 196447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 196547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 196647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 196705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 1968cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 196905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 197005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Invalid operand expansion"); 197105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1972475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 197305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1974cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1975cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 197611ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// IntegerExpandSetCCOperands - Expand the operands of a comparison. This code 197711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// is shared among BR_CC, SELECT_CC, and SETCC handlers. 1978475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::IntegerExpandSetCCOperands(SDValue &NewLHS, 1979475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &NewRHS, 1980c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen ISD::CondCode &CCCode, 1981c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl) { 1982475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 198369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewLHS, LHSLo, LHSHi); 198469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewRHS, RHSLo, RHSHi); 198541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 198683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = NewLHS.getValueType(); 198741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1988cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (CCCode == ISD::SETEQ || CCCode == ISD::SETNE) { 198911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (RHSLo == RHSHi) { 199011ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) { 1991cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (RHSCST->isAllOnesValue()) { 1992cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Equality comparison to -1. 19937fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands NewLHS = DAG.getNode(ISD::AND, dl, 1994786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHSLo.getValueType(), LHSLo, LHSHi); 1995cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSLo; 1996cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1997cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 199811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 199911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 200069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2001786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSLo, RHSLo); 2002786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewRHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSHi, RHSHi); 2003786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::OR, dl, NewLHS.getValueType(), NewLHS, NewRHS); 2004cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 2005cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2006cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 200769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2008cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this is a comparison of the sign bit, just look at the top part. 2009cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // X > -1, x < 0 2010cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(NewRHS)) 2011002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((CCCode == ISD::SETLT && CST->isNullValue()) || // X < 0 2012cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETGT && CST->isAllOnesValue())) { // X > -1 2013cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = LHSHi; 2014cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSHi; 2015cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2016cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 201769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2018cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // FIXME: This generated code sucks. 2019cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::CondCode LowCC; 2020cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (CCCode) { 2021cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: assert(0 && "Unknown integer setcc!"); 2022cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLT: 2023cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULT: LowCC = ISD::SETULT; break; 2024cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGT: 2025cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2026cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLE: 2027cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULE: LowCC = ISD::SETULE; break; 2028cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGE: 2029cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2030cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 203169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2032cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2033cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2034cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 203569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2036cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // NOTE: on targets without efficient SELECT of bools, we can always use 2037cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 2038cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 2039475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2; 20405480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo.getValueType()), 2041ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSLo, RHSLo, LowCC, false, DagCombineInfo, dl); 2042ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 2043786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()), 20445480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSLo, RHSLo, LowCC); 20455480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2046ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, CCCode, false, DagCombineInfo, dl); 2047ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 2048786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp2 = DAG.getNode(ISD::SETCC, dl, 2049786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(LHSHi.getValueType()), 20505480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, DAG.getCondCode(CCCode)); 205169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2052ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 2053ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 2054002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 2055002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 2056cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 2057cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 2058002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 2059cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 2060cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 2061cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // low part is known false, returns high part. 2062cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LE / GE, if high part is known false, ignore the low part. 2063cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LT / GT, if high part is known true, ignore the low part. 2064cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = Tmp2; 2065475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2066cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2067cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 206869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 20695480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands NewLHS = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2070ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, ISD::SETEQ, false, 2071ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen DagCombineInfo, dl); 2072ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!NewLHS.getNode()) 2073786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()), 20745480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, ISD::SETEQ); 2075786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::SELECT, dl, Tmp1.getValueType(), 2076cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS, Tmp1, Tmp2); 2077475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2078cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2079cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2080475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_BR_CC(SDNode *N) { 2081475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3); 208205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get(); 2083c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 208405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 208505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 208605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2087ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 208805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 208905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 209005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 209105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 209205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2093475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 209405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode), NewLHS, NewRHS, 209505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(4)); 209605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 209705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2098475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SELECT_CC(SDNode *N) { 2099475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 210005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get(); 2101c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 210205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 210305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 210405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2105ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 210605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 210705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 210805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 210905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 211005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2111475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), NewLHS, NewRHS, 211205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(2), N->getOperand(3), 211305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode)); 211405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 211505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2116475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SETCC(SDNode *N) { 2117475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 211805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get(); 2119c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 212005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 212105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, use it. 2122ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 212305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(NewLHS.getValueType() == N->getValueType(0) && 212405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Unexpected setcc expansion!"); 212505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return NewLHS; 212605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 212705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 212805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, update N to have the operands specified. 2129475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), NewLHS, NewRHS, 213005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode)); 213105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 213205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 213355467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::ExpandIntOp_Shift(SDNode *N) { 213455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // The value being shifted is legal, but the shift amount is too big. 213555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // It follows that either the result of the shift is undefined, or the 213655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // upper half of the shift amount is zero. Just use the lower half. 213755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta SDValue Lo, Hi; 213855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta GetExpandedInteger(N->getOperand(1), Lo, Hi); 213955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), Lo); 214055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 214155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 2142475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) { 2143475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 214405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT DstVT = N->getValueType(0); 2145b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT); 214605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 214705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this SINT_TO_FP!"); 2148c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, N->getDebugLoc()); 214905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 215005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2151475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) { 2152ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalStore(N)) 2153ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands return ExpandOp_NormalStore(N, OpNo); 215478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 215578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 2156cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(OpNo == 1 && "Can only expand the stored value so far"); 2157cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 215883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = N->getOperand(1).getValueType(); 215983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 2160475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 2161475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 2162cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner int SVOffset = N->getSrcValueOffset(); 2163cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 2164cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 2165786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2166475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2167cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2168a1ace76c70ae5332d6f33fce5c0c1e2fdb8cca11Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 2169cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 217078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 217169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2172786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getSrcValue(), SVOffset, 2173b625f2f8960de32bc973092aaee8ac62863006feDan Gohman N->getMemoryVT(), isVolatile, Alignment); 2174cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 2175cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 217669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2177cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2178786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getStore(Ch, dl, Lo, Ptr, N->getSrcValue(), SVOffset, 2179cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, Alignment); 2180cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2181cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 218283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 218383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NEVT = MVT::getIntegerVT(ExcessBits); 2184cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2185cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 218683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2187786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 21880bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2189786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getSrcValue(), 2190cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner SVOffset+IncrementSize, NEVT, 2191cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, MinAlign(Alignment, IncrementSize)); 2192786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2193cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 2194cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned stores at 2195cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 219669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2197cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 219883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = N->getMemoryVT(); 219983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EBytes = EVT.getStoreSizeInBits()/8; 220083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2201cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 220283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT HiVT = MVT::getIntegerVT(EVT.getSizeInBits() - ExcessBits); 2203cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 220483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 2205cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer high bits from the top of Lo to the bottom of Hi. 2206786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, Hi, 220783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 220892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 2209786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::OR, dl, NVT, Hi, 2210de06470330260f5937e7ca558f5f5b3e171f2ee5Dale Johannesen DAG.getNode(ISD::SRL, dl, NVT, Lo, 2211cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 221292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 2213cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2214cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2215cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Store both the high bits and maybe some of the low bits. 2216786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getSrcValue(), 2217cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner SVOffset, HiVT, isVolatile, Alignment); 2218cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2219cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 2220786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 22210bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2222cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Store the lowest ExcessBits bits in the second half. 2223786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getSrcValue(), 2224cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner SVOffset+IncrementSize, 222583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntegerVT(ExcessBits), 2226cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, MinAlign(Alignment, IncrementSize)); 2227786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2228cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2229cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 223005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2231475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_TRUNCATE(SDNode *N) { 2232475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 223305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 223405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Just truncate the low part of the source. 2235786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), InL); 223605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 223705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2238475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) { 2239475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 224005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT SrcVT = Op.getValueType(); 224105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT DstVT = N->getValueType(0); 2242c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 224305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 224405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.getOperationAction(ISD::SINT_TO_FP, SrcVT) == TargetLowering::Custom){ 224505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Do a signed conversion then adjust the result. 2246786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SignedConv = DAG.getNode(ISD::SINT_TO_FP, dl, DstVT, Op); 224705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SignedConv = TLI.LowerOperation(SignedConv, DAG); 224805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 224905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The result of the signed conversion needs adjusting if the 'sign bit' of 225005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // the incoming integer was set. To handle this, we dynamically test to see 225105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // if it is set, and, if so, add a fudge factor. 225205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 225305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE32 = 0x4F800000ULL; 225405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE64 = 0x5F800000ULL; 225505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE128 = 0x7F800000ULL; 225605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 225705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt FF(32, 0); 225805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (SrcVT == MVT::i32) 225905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE32); 226005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (SrcVT == MVT::i64) 226105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE64); 226205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (SrcVT == MVT::i128) 226305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE128); 226405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else 226505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(false && "Unsupported UINT_TO_FP!"); 226605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 226705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Check whether the sign bit is set. 2268475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 226905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(Op, Lo, Hi); 22707fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue SignSet = DAG.getSetCC(dl, 2271786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(Hi.getValueType()), 22725480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Hi, DAG.getConstant(0, Hi.getValueType()), 2273ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands ISD::SETLT); 227405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 227505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Build a 64 bit pair (0, FF) in the constant pool, with FF in the lo bits. 2276475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FudgePtr = DAG.getConstantPool(ConstantInt::get(FF.zext(64)), 227749c18cce976c158e86f54c681dff21bb81640fb8Duncan Sands TLI.getPointerTy()); 227805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 227905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get a pointer to FF if the sign bit was set, or to 0 otherwise. 2280475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0); 2281475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Four = DAG.getIntPtrConstant(4); 228205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.isBigEndian()) std::swap(Zero, Four); 2283786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Offset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), SignSet, 2284ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands Zero, Four); 228587a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman unsigned Alignment = 228687a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman 1 << cast<ConstantPoolSDNode>(FudgePtr)->getAlignment(); 2287786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen FudgePtr = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), FudgePtr, Offset); 228887a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 228905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 229005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Load the value out, extending it from f32 to the destination float type. 229105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // FIXME: Avoid the extend by constructing the right constant pool? 2292786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Fudge = DAG.getExtLoad(ISD::EXTLOAD, dl, DstVT, DAG.getEntryNode(), 229387a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman FudgePtr, NULL, 0, MVT::f32, 229487a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman false, Alignment); 2295786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::FADD, dl, DstVT, SignedConv, Fudge); 229605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 229705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 229805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, use a libcall. 2299b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT); 230005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 230105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this UINT_TO_FP!"); 2302c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, dl); 230305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2304