LegalizeIntegerTypes.cpp revision 7d696d80409aad20bb5da0fc4eccab941dd371d4
169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----- LegalizeIntegerTypes.cpp - Legalization of integer types -------===// 2cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 3cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// The LLVM Compiler Infrastructure 4cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 8cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 9cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 1069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// This file implements integer type expansion and promotion for LegalizeTypes. 1169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Promotion is the act of changing a computation in an illegal type into a 1269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// computation in a larger type. For example, implementing i8 arithmetic in an 1369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// i32 register (often needed on powerpc). 1469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Expansion is the act of changing a computation in an illegal type into a 1578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands// computation in two identical registers of a smaller type. For example, 1669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// implementing i64 arithmetic in two i32 registers (often needed on 32-bit 1769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// targets). 18cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner// 19cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 20cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 21cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#include "LegalizeTypes.h" 22c82bf9b268eb63f7cf6f435d9ea222ddb8e3c5a8Mon P Wang#include "llvm/CodeGen/PseudoSourceValue.h" 237d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin#include "llvm/Support/ErrorHandling.h" 24cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattnerusing namespace llvm; 25cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 26cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Promotion 28cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 29cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 3069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteIntegerResult - This method is called when a result of a node is 3169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// found to be in need of promotion to a larger type. At this point, the node 3269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// may also have invalid operands or may have other results that need 3369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// expansion, we just know that (at least) one result needs promotion. 3469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) { 3569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DEBUG(cerr << "Promote integer result: "; N->dump(&DAG); cerr << "\n"); 369fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SDValue Res = SDValue(); 3769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 38126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands // See if the target wants to custom expand this node. 39f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 401607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 41126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 4269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (N->getOpcode()) { 4369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 4469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#ifndef NDEBUG 4569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands cerr << "PromoteIntegerResult #" << ResNo << ": "; 4669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->dump(&DAG); cerr << "\n"; 4769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#endif 487d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin LLVM_UNREACHABLE("Do not know how to promote this operator!"); 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)); 153fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel 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 214aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 215aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman CreateStackStoreLoad(InOp, OutVT)); 21669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 21769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 218475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BSWAP(SDNode *N) { 219475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 220c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands MVT OVT = N->getValueType(0); 221c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands MVT NVT = Op.getValueType(); 222786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 223c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 224c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 225786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, dl, NVT, DAG.getNode(ISD::BSWAP, dl, NVT, Op), 22692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(DiffBits, TLI.getPointerTy())); 227c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands} 228c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 229475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_PAIR(SDNode *N) { 230bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The pair element type may be legal, or may not promote to the same type as 231bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // the result, for example i14 = BUILD_PAIR (i7, i7). Handle all cases. 232786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), 233bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands TLI.getTypeToTransformTo(N->getValueType(0)), 234bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands JoinIntegers(N->getOperand(0), N->getOperand(1))); 23569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 23669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 237475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_Constant(SDNode *N) { 23869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT VT = N->getValueType(0); 239b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen // FIXME there is no actual debug info here 240b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 241bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Zero extend things like i1, sign extend everything else. It shouldn't 242bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // matter in theory which one we pick, but this tends to give better code? 243bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Opc = VT.isByteSized() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND; 244b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen SDValue Result = DAG.getNode(Opc, dl, TLI.getTypeToTransformTo(VT), 245a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands SDValue(N, 0)); 246bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(isa<ConstantSDNode>(Result) && "Didn't constant fold ext?"); 247bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Result; 24869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 24969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 25000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P WangSDValue DAGTypeLegalizer::PromoteIntRes_CONVERT_RNDSAT(SDNode *N) { 25100ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 25200ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 25300ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 25400ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_SF || CvtCode == ISD::CVT_UF) && 25500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang "can only promote integers"); 25600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang MVT OutVT = TLI.getTypeToTransformTo(N->getValueType(0)); 257c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(OutVT, N->getDebugLoc(), N->getOperand(0), 25800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(1), N->getOperand(2), 25900ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 26000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang} 26100ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang 262475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTLZ(SDNode *N) { 263c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands // Zero extend to the promoted type and do the count there. 264c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 265b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 26669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT OVT = N->getValueType(0); 26769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT NVT = Op.getValueType(); 268b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Op = DAG.getNode(ISD::CTLZ, dl, NVT, Op); 26969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Subtract off the extra leading bits in the bigger type. 270b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen return DAG.getNode(ISD::SUB, dl, NVT, Op, 27169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DAG.getConstant(NVT.getSizeInBits() - 27269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands OVT.getSizeInBits(), NVT)); 27369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 27469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 275475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTPOP(SDNode *N) { 27669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Zero extend to the promoted type and do the count there. 277c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 278786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTPOP, N->getDebugLoc(), Op.getValueType(), Op); 27969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 28069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 281475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTTZ(SDNode *N) { 282475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 28369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT OVT = N->getValueType(0); 28469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT NVT = Op.getValueType(); 285786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 28669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The count is the same in the promoted type except if the original 28769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // value was zero. This can be handled by setting the bit just off 28869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the top of the original type. 28903dc093a2e63d20984c8fd67809fa762f1e31f1aDuncan Sands APInt TopBit(NVT.getSizeInBits(), 0); 29003dc093a2e63d20984c8fd67809fa762f1e31f1aDuncan Sands TopBit.set(OVT.getSizeInBits()); 291786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::OR, dl, NVT, Op, DAG.getConstant(TopBit, NVT)); 292786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTTZ, dl, NVT, Op); 29369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 29469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 295475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N) { 296786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 297c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 298c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NVT, N->getOperand(0), 299c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman N->getOperand(1)); 30069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 30169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 302475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_FP_TO_XINT(SDNode *N) { 303bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 304a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands unsigned NewOpc = N->getOpcode(); 305786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 306d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 3074c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // If we're promoting a UINT to a larger size and the larger FP_TO_UINT is 3084c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // not Legal, check to see if we can use FP_TO_SINT instead. (If both UINT 3094c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // and SINT conversions are Custom, there is no way to tell which is preferable. 3108c899ee031481dbece5f111379a274c848cb5902Duncan Sands // We choose SINT because that's the right thing on PPC.) 311a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands if (N->getOpcode() == ISD::FP_TO_UINT && 3124c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 313f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NVT)) 314a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NewOpc = ISD::FP_TO_SINT; 315a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 316786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(NewOpc, dl, NVT, N->getOperand(0)); 317a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 318a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // Assert that the converted value fits in the original type. If it doesn't 319a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // (eg: because the value being converted is too big), then the result of the 320a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // original operation was undefined anyway, so the assert is still correct. 321a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands return DAG.getNode(N->getOpcode() == ISD::FP_TO_UINT ? 322786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen ISD::AssertZext : ISD::AssertSext, dl, 323a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NVT, Res, DAG.getValueType(N->getValueType(0))); 324d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands} 325d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 326475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_INT_EXTEND(SDNode *N) { 327bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 328786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 329be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 330bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (getTypeAction(N->getOperand(0).getValueType()) == PromoteInteger) { 331475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(N->getOperand(0)); 3326959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(Res.getValueType().bitsLE(NVT) && "Extension doesn't make sense!"); 333126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 334bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result and operand types are the same after promotion, simplify 335bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // to an in-register extension. 336bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (NVT == Res.getValueType()) { 337bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The high bits are not guaranteed to be anything. Insert an extend. 338bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::SIGN_EXTEND) 339786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 340bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DAG.getValueType(N->getOperand(0).getValueType())); 341bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::ZERO_EXTEND) 3424be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen return DAG.getZeroExtendInReg(Res, dl, N->getOperand(0).getValueType()); 343bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(N->getOpcode() == ISD::ANY_EXTEND && "Unknown integer extension!"); 344bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 345126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 34669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 34769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 348bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Otherwise, just extend the original operand all the way to the larger type. 349786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 350bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 35169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 352475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_LOAD(LoadSDNode *N) { 353bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 354bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 355bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::LoadExtType ExtType = 356bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::isNON_EXTLoad(N) ? ISD::EXTLOAD : N->getExtensionType(); 357786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 358786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getExtLoad(ExtType, dl, NVT, N->getChain(), N->getBasePtr(), 35947d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getSrcValue(), N->getSrcValueOffset(), 36047d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getMemoryVT(), N->isVolatile(), 36147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getAlignment()); 36269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 363bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Legalized the chain result - switch anything that used the old chain to 364bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 365475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 366bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 36769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 36869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 369874ae251c317788391f9c3f113957802d390a063Dale Johannesen/// Promote the overflow flag of an overflowing arithmetic node. 370ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Overflow(SDNode *N) { 371ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Simply change the return type of the boolean result. 372ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(1)); 373ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT ValueVTs[] = { N->getValueType(0), NVT }; 374ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue Ops[] = { N->getOperand(0), N->getOperand(1) }; 375786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(N->getOpcode(), N->getDebugLoc(), 376786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getVTList(ValueVTs, 2), Ops, 2); 377ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 378ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Modified the sum result - switch anything that used the old sum to use 379ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the new one. 380ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 0), Res); 381ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 382ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return SDValue(Res.getNode(), 1); 383ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 384ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 385ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo) { 386ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 387ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 388ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 389ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 390ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // sign extension of its truncation to the original type. 391ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 392ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 393ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT OVT = N->getOperand(0).getValueType(); 394ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT NVT = LHS.getValueType(); 395786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 396ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 397ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 398ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::SADDO ? ISD::ADD : ISD::SUB; 399786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 400ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 401ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: sign extend the arithmetic result from 402ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 403786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Ofl = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 404ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands DAG.getValueType(OVT)); 405ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 406786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 407ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 408ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 409ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 410ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 411ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 412ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 413ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 414475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SDIV(SDNode *N) { 415bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Sign extend the input. 416c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 417c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 418786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 419786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 42069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 42169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 422475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT(SDNode *N) { 423475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(1)); 424475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(2)); 425786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT, N->getDebugLoc(), 426786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0),LHS,RHS); 42769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 42869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 429475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT_CC(SDNode *N) { 430475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(2)); 431475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(3)); 432786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(), 433786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0), 434bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 43569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 43669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 437475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SETCC(SDNode *N) { 4385480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands MVT SVT = TLI.getSetCCResultType(N->getOperand(0).getValueType()); 4397e4982287591945c4e42ba8470a978e629789c76Duncan Sands assert(isTypeLegal(SVT) && "Illegal SetCC type!"); 440786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 4417e4982287591945c4e42ba8470a978e629789c76Duncan Sands 4427e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Get the SETCC result using the canonical SETCC type. 443786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SetCC = DAG.getNode(ISD::SETCC, dl, SVT, N->getOperand(0), 4447e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 4457e4982287591945c4e42ba8470a978e629789c76Duncan Sands 4467e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Convert to the expected type. 4477e4982287591945c4e42ba8470a978e629789c76Duncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 4486959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(NVT.bitsLE(SVT) && "Integer type overpromoted?"); 449786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, NVT, SetCC); 45069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 45169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 452475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SHL(SDNode *N) { 453786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SHL, N->getDebugLoc(), 454786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getTypeToTransformTo(N->getValueType(0)), 455bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands GetPromotedInteger(N->getOperand(0)), N->getOperand(1)); 45669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 45769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 458475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N) { 459475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 460786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, N->getDebugLoc(), 461786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 4628d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands} 4638d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands 464475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SimpleIntBinOp(SDNode *N) { 465bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input may have strange things in the top bits of the registers, but 466bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // these operations don't care. They may have weird bits going out, but 467bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // that too is okay if they are integer operations. 468475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(0)); 469475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(1)); 470786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 471786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 47269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 47369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 474475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRA(SDNode *N) { 475bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly sign extended. 476c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Res = SExtPromotedInteger(N->getOperand(0)); 477786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRA, N->getDebugLoc(), 478786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res.getValueType(), Res, N->getOperand(1)); 479bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 48069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 481475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRL(SDNode *N) { 482bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly zero extended. 483bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT VT = N->getValueType(0); 484bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 485475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = ZExtPromotedInteger(N->getOperand(0)); 486786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, N->getDebugLoc(), NVT, Res, N->getOperand(1)); 48769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 489475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_TRUNCATE(SDNode *N) { 4906959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 491475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res; 49269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 493bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands switch (getTypeAction(N->getOperand(0).getValueType())) { 494bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands default: assert(0 && "Unknown type action!"); 495bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case Legal: 496bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ExpandInteger: 497bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Res = N->getOperand(0); 498bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 499bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case PromoteInteger: 500bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Res = GetPromotedInteger(N->getOperand(0)); 501bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 502bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands } 503bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 504bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate to NVT instead of VT 505786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), NVT, Res); 50669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 50769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 508ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo) { 509ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 510ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 511ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 512ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 513ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // zero extension of its truncation to the original type. 514c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 515c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 516ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT OVT = N->getOperand(0).getValueType(); 517ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands MVT NVT = LHS.getValueType(); 518786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 51969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 520ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 521ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::UADDO ? ISD::ADD : ISD::SUB; 522786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 5238ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 524ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: zero extend the arithmetic result from 525ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 5264be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen SDValue Ofl = DAG.getZeroExtendInReg(Res, dl, OVT); 527ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 528786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 5298ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 530ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 531ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 5328ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 533ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 534ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 535ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 536ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { 537ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Zero extend the input. 538ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 539ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 540786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 541786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 5428ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling} 5438ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 544475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_UNDEF(SDNode *N) { 545e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen return DAG.getUNDEF(TLI.getTypeToTransformTo(N->getValueType(0))); 54669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 54769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 548475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_VAARG(SDNode *N) { 549475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = N->getOperand(0); // Get the chain. 550475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getOperand(1); // Get the pointer. 551bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT VT = N->getValueType(0); 552786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 55369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 554d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands MVT RegVT = TLI.getRegisterType(VT); 555d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands unsigned NumRegs = TLI.getNumRegisters(VT); 556d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // The argument is passed as NumRegs registers of type RegVT. 557d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 558d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands SmallVector<SDValue, 8> Parts(NumRegs); 559d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 0; i < NumRegs; ++i) { 560c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen Parts[i] = DAG.getVAArg(RegVT, dl, Chain, Ptr, N->getOperand(2)); 561d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands Chain = Parts[i].getValue(1); 562d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 56369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 564d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Handle endianness of the load. 565d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands if (TLI.isBigEndian()) 566d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands std::reverse(Parts.begin(), Parts.end()); 56769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 568d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Assemble the parts in the promoted type. 569d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 570786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[0]); 571d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 1; i < NumRegs; ++i) { 572786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Part = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[i]); 573d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Shift it to the right position and "or" it in. 574786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Part = DAG.getNode(ISD::SHL, dl, NVT, Part, 575d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands DAG.getConstant(i * RegVT.getSizeInBits(), 57692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 577786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res = DAG.getNode(ISD::OR, dl, NVT, Res, Part); 578d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 57969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 580d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Modified the chain result - switch anything that used the old chain to 581bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 582d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands ReplaceValueWith(SDValue(N, 1), Chain); 583d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 584d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands return Res; 58569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 58669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 587ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_XMULO(SDNode *N, unsigned ResNo) { 588ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands assert(ResNo == 1 && "Only boolean result promotion currently supported!"); 589ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 590ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 5917fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 592bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 593bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands// Integer Operand Promotion 594bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 5957fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 596bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// PromoteIntegerOperand - This method is called when the specified operand of 597bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// the specified node is found to need promotion. At this point, all of the 598bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// result types of the node are known to be legal, but other operands of the 599bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// node may need promotion or expansion as well as the specified one. 600bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sandsbool DAGTypeLegalizer::PromoteIntegerOperand(SDNode *N, unsigned OpNo) { 601bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DEBUG(cerr << "Promote integer operand: "; N->dump(&DAG); cerr << "\n"); 602475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 6037fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 604f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 605bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 60669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 607bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 608bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 609bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #ifndef NDEBUG 610bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta cerr << "PromoteIntegerOperand Op #" << OpNo << ": "; 611bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta N->dump(&DAG); cerr << "\n"; 612bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #endif 6137d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin LLVM_UNREACHABLE("Do not know how to promote this operator's operand!"); 614bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 615bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ANY_EXTEND: Res = PromoteIntOp_ANY_EXTEND(N); break; 61627759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman case ISD::BIT_CONVERT: Res = PromoteIntOp_BIT_CONVERT(N); break; 617bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BR_CC: Res = PromoteIntOp_BR_CC(N, OpNo); break; 618bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BRCOND: Res = PromoteIntOp_BRCOND(N, OpNo); break; 619bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_PAIR: Res = PromoteIntOp_BUILD_PAIR(N); break; 620bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_VECTOR: Res = PromoteIntOp_BUILD_VECTOR(N); break; 621bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::CONVERT_RNDSAT: 622bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_CONVERT_RNDSAT(N); break; 623bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: 624bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_INSERT_VECTOR_ELT(N, OpNo);break; 625bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::MEMBARRIER: Res = PromoteIntOp_MEMBARRIER(N); break; 626aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang case ISD::SCALAR_TO_VECTOR: 627aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang Res = PromoteIntOp_SCALAR_TO_VECTOR(N); break; 628bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT: Res = PromoteIntOp_SELECT(N, OpNo); break; 629bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT_CC: Res = PromoteIntOp_SELECT_CC(N, OpNo); break; 630bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SETCC: Res = PromoteIntOp_SETCC(N, OpNo); break; 631bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SIGN_EXTEND: Res = PromoteIntOp_SIGN_EXTEND(N); break; 632bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SINT_TO_FP: Res = PromoteIntOp_SINT_TO_FP(N); break; 633bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::STORE: Res = PromoteIntOp_STORE(cast<StoreSDNode>(N), 634bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta OpNo); break; 635bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::TRUNCATE: Res = PromoteIntOp_TRUNCATE(N); break; 636bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::UINT_TO_FP: Res = PromoteIntOp_UINT_TO_FP(N); break; 637bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ZERO_EXTEND: Res = PromoteIntOp_ZERO_EXTEND(N); break; 63855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 63955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 64055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 64155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 64255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 64355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = PromoteIntOp_Shift(N); break; 644bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta } 6459fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands 646bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result is null, the sub-method took care of registering results etc. 6479fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (!Res.getNode()) return false; 64847d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 64947d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 65047d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 65147d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 652bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return true; 653bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 654bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 655bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands "Invalid operand expansion"); 656bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 657475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 658bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return false; 65969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 66069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 66169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteSetCCOperands - Promote the operands of a comparison. This code is 66269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// shared among BR_CC, SELECT_CC, and SETCC handlers. 663475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::PromoteSetCCOperands(SDValue &NewLHS,SDValue &NewRHS, 66469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands ISD::CondCode CCCode) { 665cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // We have to insert explicit sign or zero extends. Note that we could 666cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // insert sign extends for ALL conditions, but zero extend is cheaper on 667cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // many machines (an AND instead of two shifts), so prefer it. 66869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (CCCode) { 66969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: assert(0 && "Unknown integer comparison!"); 67069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETEQ: 67169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETNE: 67269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGE: 67369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGT: 67469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULE: 67569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULT: 67669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // ALL of these operations will work if we either sign or zero extend 67769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the operands (including the unsigned comparisons!). Zero extend is 67869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // usually a simpler/cheaper operation, so prefer it. 679c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = ZExtPromotedInteger(NewLHS); 680c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = ZExtPromotedInteger(NewRHS); 68111ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 68269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGE: 68369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGT: 68469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLT: 68569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLE: 686c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = SExtPromotedInteger(NewLHS); 687c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = SExtPromotedInteger(NewRHS); 68811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 68969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 69069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 69169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 692475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ANY_EXTEND(SDNode *N) { 693475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 694786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), N->getValueType(0), Op); 695bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 69669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 69727759f41ca1c930e2860275c9ba2567a5890d7d2Eli FriedmanSDValue DAGTypeLegalizer::PromoteIntOp_BIT_CONVERT(SDNode *N) { 69827759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // This should only occur in unusual situations like bitcasting to an 69927759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // x86_fp80, so just turn it into a store+load 70027759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman return CreateStackStoreLoad(N->getOperand(0), N->getValueType(0)); 70127759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman} 70227759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman 703475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo) { 704bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 2 && "Don't know how to promote this operand!"); 70569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 706475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(2); 707475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(3); 708bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(1))->get()); 70969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 710bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0), CC (#1) and basic block destination (Op#4) are always 711bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal types. 712475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 713bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 714bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 715bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 716475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo) { 717bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 1 && "only know how to promote condition"); 718bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 719b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 7205480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands MVT SVT = TLI.getSetCCResultType(MVT::Other); 721b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(1), SVT); 722bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 723bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0) and basic block destination (Op#2) are always legal types. 724475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), Cond, 725bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(2)); 726bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 727bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 728475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_PAIR(SDNode *N) { 729bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Since the result type is legal, the operands must promote to it. 730bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands MVT OVT = N->getOperand(0).getValueType(); 731c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Lo = ZExtPromotedInteger(N->getOperand(0)); 732475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = GetPromotedInteger(N->getOperand(1)); 733bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Lo.getValueType() == N->getValueType(0) && "Operand over promoted?"); 734786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 735bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 736786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, N->getValueType(0), Hi, 73792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(OVT.getSizeInBits(), TLI.getPointerTy())); 738786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::OR, dl, N->getValueType(0), Lo, Hi); 73969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 74069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 741475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_VECTOR(SDNode *N) { 74269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The vector type is legal but the element type is not. This implies 74369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // that the vector is a power-of-two in length and that the element 74469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // type does not have a strange size (eg: it is not i1). 74569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands MVT VecVT = N->getValueType(0); 74669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned NumElts = VecVT.getVectorNumElements(); 74769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(NumElts & 1) && "Legal vector of one illegal element?"); 74869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 749b1303d05a89972195de023fda432cc621375a27cBob Wilson // Promote the inserted value. The type does not need to match the 750b1303d05a89972195de023fda432cc621375a27cBob Wilson // vector element type. Check that any extra bits introduced will be 751b1303d05a89972195de023fda432cc621375a27cBob Wilson // truncated away. 752b1303d05a89972195de023fda432cc621375a27cBob Wilson assert(N->getOperand(0).getValueType().getSizeInBits() >= 753b1303d05a89972195de023fda432cc621375a27cBob Wilson N->getValueType(0).getVectorElementType().getSizeInBits() && 754b1303d05a89972195de023fda432cc621375a27cBob Wilson "Type of inserted value narrower than vector element type!"); 75569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 756b1303d05a89972195de023fda432cc621375a27cBob Wilson SmallVector<SDValue, 16> NewOps; 757c885165e664f3b465403e1b6ce57ba63f57c5f0cBob Wilson for (unsigned i = 0; i < NumElts; ++i) 758b1303d05a89972195de023fda432cc621375a27cBob Wilson NewOps.push_back(GetPromotedInteger(N->getOperand(i))); 75969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 760b1303d05a89972195de023fda432cc621375a27cBob Wilson return DAG.UpdateNodeOperands(SDValue(N, 0), &NewOps[0], NumElts); 76169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 76269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 76328088d3c049017a131aa7b07201c6e19c0227cefMon P WangSDValue DAGTypeLegalizer::PromoteIntOp_CONVERT_RNDSAT(SDNode *N) { 76428088d3c049017a131aa7b07201c6e19c0227cefMon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 76528088d3c049017a131aa7b07201c6e19c0227cefMon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 76628088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 76728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_FS || CvtCode == ISD::CVT_FU) && 76828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang "can only promote integer arguments"); 76928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang SDValue InOp = GetPromotedInteger(N->getOperand(0)); 770c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(N->getValueType(0), N->getDebugLoc(), InOp, 77128088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(1), N->getOperand(2), 77228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 77328088d3c049017a131aa7b07201c6e19c0227cefMon P Wang} 77428088d3c049017a131aa7b07201c6e19c0227cefMon P Wang 775475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, 776475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned OpNo) { 77769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OpNo == 1) { 77869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the inserted value. This is valid because the type does not 77969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // have to match the vector element type. 78069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 78169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Check that any extra bits introduced will be truncated away. 78269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(N->getOperand(1).getValueType().getSizeInBits() >= 78369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getValueType(0).getVectorElementType().getSizeInBits() && 78469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Type of inserted value narrower than vector element type!"); 785475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 78669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetPromotedInteger(N->getOperand(1)), 78769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getOperand(2)); 78869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 78969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 79069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OpNo == 2 && "Different operand and result vector types?"); 79169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 79269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the index. 793c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Idx = ZExtPromotedInteger(N->getOperand(2)); 794475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 79569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getOperand(1), Idx); 79669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 79769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 798475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_MEMBARRIER(SDNode *N) { 799475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewOps[6]; 8004be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 80169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewOps[0] = N->getOperand(0); 80269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 1; i < array_lengthof(NewOps); ++i) { 803475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag = GetPromotedInteger(N->getOperand(i)); 8044be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen NewOps[i] = DAG.getZeroExtendInReg(Flag, dl, MVT::i1); 80569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 806475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue (N, 0), NewOps, 80769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands array_lengthof(NewOps)); 80869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 80969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 810aa9df0b0c3cef33514095bde2eedead986677955Mon P WangSDValue DAGTypeLegalizer::PromoteIntOp_SCALAR_TO_VECTOR(SDNode *N) { 811b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // Integer SCALAR_TO_VECTOR operands are implicitly truncated, so just promote 812b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // the operand in place. 813b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands return DAG.UpdateNodeOperands(SDValue(N, 0), 814b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands GetPromotedInteger(N->getOperand(0))); 815aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang} 816aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang 817475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT(SDNode *N, unsigned OpNo) { 818bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Only know how to promote condition"); 8197e4982287591945c4e42ba8470a978e629789c76Duncan Sands 820b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 8215480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands MVT SVT = TLI.getSetCCResultType(N->getOperand(1).getValueType()); 822b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(0), SVT); 823bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 8247e4982287591945c4e42ba8470a978e629789c76Duncan Sands return DAG.UpdateNodeOperands(SDValue(N, 0), Cond, 8257e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 826bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 827bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 828475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo) { 829bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 830bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 831475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 832475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 833bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(4))->get()); 834bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 835bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#4) and the possible return values (#2 and #3) have legal types. 836475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), LHS, RHS, N->getOperand(2), 837bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(3), N->getOperand(4)); 838bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 839bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 840475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SETCC(SDNode *N, unsigned OpNo) { 841bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 842bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 843475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 844475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 845bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get()); 846bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 847bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#2) is always legal. 848475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), LHS, RHS, N->getOperand(2)); 849bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 850bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 85155467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::PromoteIntOp_Shift(SDNode *N) { 85255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 85355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta ZExtPromotedInteger(N->getOperand(1))); 85455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 85555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 856475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SIGN_EXTEND(SDNode *N) { 857475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 858786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 859786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 860786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), 861bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Op, DAG.getValueType(N->getOperand(0).getValueType())); 862bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 863bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 864c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_SINT_TO_FP(SDNode *N) { 865c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands return DAG.UpdateNodeOperands(SDValue(N, 0), 866c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SExtPromotedInteger(N->getOperand(0))); 867c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 868c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 869475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){ 870bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 871475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(), Ptr = N->getBasePtr(); 872bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands int SVOffset = N->getSrcValueOffset(); 873bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Alignment = N->getAlignment(); 874bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands bool isVolatile = N->isVolatile(); 875786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 876bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 877475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = GetPromotedInteger(N->getValue()); // Get promoted value. 878bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 879bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate the value and store the result. 880786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getTruncStore(Ch, dl, Val, Ptr, N->getSrcValue(), 881bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands SVOffset, N->getMemoryVT(), 882bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands isVolatile, Alignment); 883bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 884bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 885475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_TRUNCATE(SDNode *N) { 886475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 887786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), Op); 888bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 889bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 890c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_UINT_TO_FP(SDNode *N) { 891c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands return DAG.UpdateNodeOperands(SDValue(N, 0), 892c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands ZExtPromotedInteger(N->getOperand(0))); 893c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 894c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 895475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ZERO_EXTEND(SDNode *N) { 8964be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 897475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 8984be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 8994be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen return DAG.getZeroExtendInReg(Op, dl, N->getOperand(0).getValueType()); 900bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 901bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 90269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 90369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 90469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Expansion 90569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 90669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 90769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// ExpandIntegerResult - This method is called when the specified result of the 908cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// specified node is found to need expansion. At this point, the node may also 909cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// have invalid operands or may have other results that need promotion, we just 910cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// know that (at least) one result needs expansion. 91169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) { 91269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DEBUG(cerr << "Expand integer result: "; N->dump(&DAG); cerr << "\n"); 913475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 914475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Lo = Hi = SDValue(); 915cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 916cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // See if the target wants to custom expand this node. 917f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 9181607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 919cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 920cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (N->getOpcode()) { 921cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: 922cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#ifndef NDEBUG 92369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands cerr << "ExpandIntegerResult #" << ResNo << ": "; 924cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner N->dump(&DAG); cerr << "\n"; 925cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#endif 9267d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin LLVM_UNREACHABLE("Do not know how to expand the result of this operator!"); 92769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 92878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, Lo, Hi); break; 92978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break; 93078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break; 93178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break; 93278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 93378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BIT_CONVERT: ExpandRes_BIT_CONVERT(N, Lo, Hi); break; 93478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break; 9354a307ecce68f90e0eebf1ded52b947816cdc2304Duncan Sands case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break; 93678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break; 93721c2972f7d24680f6475877a3398b7f8cf515b33Duncan Sands case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break; 93878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 93969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ANY_EXTEND: ExpandIntRes_ANY_EXTEND(N, Lo, Hi); break; 94095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands case ISD::AssertSext: ExpandIntRes_AssertSext(N, Lo, Hi); break; 94169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AssertZext: ExpandIntRes_AssertZext(N, Lo, Hi); break; 94205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::BSWAP: ExpandIntRes_BSWAP(N, Lo, Hi); break; 94305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::Constant: ExpandIntRes_Constant(N, Lo, Hi); break; 94405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTLZ: ExpandIntRes_CTLZ(N, Lo, Hi); break; 94505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTPOP: ExpandIntRes_CTPOP(N, Lo, Hi); break; 94605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTTZ: ExpandIntRes_CTTZ(N, Lo, Hi); break; 94769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: ExpandIntRes_FP_TO_SINT(N, Lo, Hi); break; 94869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_UINT: ExpandIntRes_FP_TO_UINT(N, Lo, Hi); break; 94969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::LOAD: ExpandIntRes_LOAD(cast<LoadSDNode>(N), Lo, Hi); break; 95005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::MUL: ExpandIntRes_MUL(N, Lo, Hi); break; 95105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SDIV: ExpandIntRes_SDIV(N, Lo, Hi); break; 95205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND: ExpandIntRes_SIGN_EXTEND(N, Lo, Hi); break; 95305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND_INREG: ExpandIntRes_SIGN_EXTEND_INREG(N, Lo, Hi); break; 95405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SREM: ExpandIntRes_SREM(N, Lo, Hi); break; 95505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::TRUNCATE: ExpandIntRes_TRUNCATE(N, Lo, Hi); break; 95605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UDIV: ExpandIntRes_UDIV(N, Lo, Hi); break; 95705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UREM: ExpandIntRes_UREM(N, Lo, Hi); break; 95805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::ZERO_EXTEND: ExpandIntRes_ZERO_EXTEND(N, Lo, Hi); break; 95969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 960cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::AND: 961cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::OR: 96205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::XOR: ExpandIntRes_Logical(N, Lo, Hi); break; 96305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 964cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADD: 96505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUB: ExpandIntRes_ADDSUB(N, Lo, Hi); break; 96605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 967cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDC: 96805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBC: ExpandIntRes_ADDSUBC(N, Lo, Hi); break; 96905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 970cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDE: 97105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBE: ExpandIntRes_ADDSUBE(N, Lo, Hi); break; 97205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 973cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SHL: 974cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SRA: 97505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: ExpandIntRes_Shift(N, Lo, Hi); break; 976cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 977d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 978cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If Lo/Hi is null, the sub-method took care of registering results etc. 979ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Lo.getNode()) 980475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SetExpandedInteger(SDValue(N, ResNo), Lo, Hi); 981cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 982cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 98305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftByConstant - N is a shift by a value that needs to be expanded, 98405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// and the shift amount is a constant 'Amt'. Expand the operation. 98505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandShiftByConstant(SDNode *N, unsigned Amt, 986475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 987786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 98805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the incoming operand to be shifted, so that we have its parts 989475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 99005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 991cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 99205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = InL.getValueType(); 99305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned VTBits = N->getValueType(0).getSizeInBits(); 99405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 99505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT ShTy = N->getOperand(1).getValueType(); 996cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 99705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SHL) { 99805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 99905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = Hi = DAG.getConstant(0, NVT); 100005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 100105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 10027fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ISD::SHL, dl, 1003786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InL, DAG.getConstant(Amt-NVTBits,ShTy)); 100405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 100505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 100605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = InL; 1007104de6cf7b80ec5e9beb502a069f376810a0a1e3Richard Osborne } else if (Amt == 1 && 1008f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::ADDC, 1009f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.getTypeToExpandTo(NVT))) { 101005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Emit this X << 1 as X+X. 1011874ae251c317788391f9c3f113957802d390a063Dale Johannesen SDVTList VTList = DAG.getVTList(NVT, MVT::Flag); 1012475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { InL, InL }; 1013786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 1014475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { InH, InH, Lo.getValue(1) }; 1015786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 101605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1017786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SHL, dl, NVT, InL, DAG.getConstant(Amt, ShTy)); 1018786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::OR, dl, NVT, 1019786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, InH, 102005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1021786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SRL, dl, NVT, InL, 102205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 102305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 102405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1025cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1026cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 102705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SRL) { 102805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 102905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 103005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 103105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 10327fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Lo = DAG.getNode(ISD::SRL, dl, 1033786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InH, DAG.getConstant(Amt-NVTBits,ShTy)); 103405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 103505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 103605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 103705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 103805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1039786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, 1040786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SRL, dl, NVT, InL, 104105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1042786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, InH, 104305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1044786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, NVT, InH, DAG.getConstant(Amt, ShTy)); 104505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 104605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1047cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1048d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 104905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 105005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 1051786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, 105205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 105305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1054786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, 105505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt-NVTBits, ShTy)); 1056786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, 105705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 105805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 105905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 1060786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, 106105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1062d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } else { 1063de06470330260f5937e7ca558f5f5b3e171f2ee5Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, 1064786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SRL, dl, NVT, InL, 106505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1066786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, InH, 106705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1068786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, DAG.getConstant(Amt, ShTy)); 1069d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } 1070d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands} 1071d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 107205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftWithKnownAmountBit - Try to determine whether we can simplify 107305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// this shift based on knowledge of the high bit of the shift amount. If we 107405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// can tell this, we know that it is >= 32 or < 32, without knowing the actual 107505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// shift amount. 107605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer:: 1077475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 1078475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt = N->getOperand(1); 107983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 108005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT ShTy = Amt.getValueType(); 108105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ShBits = ShTy.getSizeInBits(); 108205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 108305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(isPowerOf2_32(NVTBits) && 108405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Expanded integer type size not a power of two!"); 1085786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1086cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 108705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt HighBitMask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 108805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt KnownZero, KnownOne; 108905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.ComputeMaskedBits(N->getOperand(1), HighBitMask, KnownZero, KnownOne); 1090cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 109105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we don't know anything about the high bits, exit. 109205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (((KnownZero|KnownOne) & HighBitMask) == 0) 109305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1094cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 109505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get the incoming operand to be shifted. 1096475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 109705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1098be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 109905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that any of the high bits of the shift amount are one, then we 110005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 110105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (KnownOne.intersects(HighBitMask)) { 110205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Mask out the high bit, which we know is set. 1103786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Amt = DAG.getNode(ISD::AND, dl, ShTy, Amt, 110405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(~HighBitMask, ShTy)); 110505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 110605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 110705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands default: assert(0 && "Unknown shift"); 110805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: 110905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); // Low part is zero. 1110786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 111105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 111205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 111305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // Hi part is zero. 1114786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 111505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 111605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: 1117786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 111805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1119786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 112005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 112105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 112205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 112305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 112428dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#if 0 112528dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman // FIXME: This code is broken for shifts with a zero amount! 112605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that all of the high bits of the shift amount are zero, then we 112705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 112805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if ((KnownZero & HighBitMask) == HighBitMask) { 112905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Compute 32-amt. 1130475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt2 = DAG.getNode(ISD::SUB, ShTy, 113105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits, ShTy), 113205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Amt); 113305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned Op1, Op2; 113405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 113505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands default: assert(0 && "Unknown shift"); 113605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: Op1 = ISD::SHL; Op2 = ISD::SRL; break; 113705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 113805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: Op1 = ISD::SRL; Op2 = ISD::SHL; break; 113905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 114005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 114105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getNode(N->getOpcode(), NVT, InL, Amt); 114205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getNode(ISD::OR, NVT, 114305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op1, NVT, InH, Amt), 114405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op2, NVT, InL, Amt2)); 114505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 114605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 114728dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#endif 114805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 114905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 115005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 115105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 11526fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// ExpandShiftWithUnknownAmountBit - Fully general expansion of integer shift 11536fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// of any size. 11546fb2168aaed06e4685d064b6f63dc4c668b42728Evan Chengbool DAGTypeLegalizer:: 11556fb2168aaed06e4685d064b6f63dc4c668b42728Evan ChengExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 11566fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Amt = N->getOperand(1); 11576fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 11586fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng MVT ShTy = Amt.getValueType(); 11596fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng unsigned NVTBits = NVT.getSizeInBits(); 11606fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng assert(isPowerOf2_32(NVTBits) && 11616fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng "Expanded integer type size not a power of two!"); 11626fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DebugLoc dl = N->getDebugLoc(); 11636fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 11646fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // Get the incoming operand to be shifted. 11656fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue InL, InH; 11666fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng GetExpandedInteger(N->getOperand(0), InL, InH); 11676fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 11686fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue NVBitsNode = DAG.getConstant(NVTBits, ShTy); 11696fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Amt2 = DAG.getNode(ISD::SUB, dl, ShTy, NVBitsNode, Amt); 11706fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Cmp = DAG.getSetCC(dl, TLI.getSetCCResultType(ShTy), 11716fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Amt, NVBitsNode, ISD::SETULT); 11726fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 11736fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Lo1, Hi1, Lo2, Hi2; 11746fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng switch (N->getOpcode()) { 11756fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng default: assert(0 && "Unknown shift"); 11766fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SHL: 11776fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // ShAmt < NVTBits 11786fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo1 = DAG.getConstant(0, NVT); // Low part is zero. 11796fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi1 = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 11806fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 11816fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // ShAmt >= NVTBits 11826fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo2 = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); 11836fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi2 = DAG.getNode(ISD::OR, dl, NVT, 11846fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt), 11856fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt2)); 11866fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 11876fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, Lo1, Lo2); 11886fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, Hi1, Hi2); 11896fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 11906fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRL: 11916fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // ShAmt < NVTBits 11926fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi1 = DAG.getConstant(0, NVT); // Hi part is zero. 11936fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo1 = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 11946fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 11956fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // ShAmt >= NVTBits 11966fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi2 = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); 11976fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo2 = DAG.getNode(ISD::OR, dl, NVT, 11986fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 11996fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt2)); 12006fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 12016fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, Lo1, Lo2); 12026fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, Hi1, Hi2); 12036fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 12046fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRA: 12056fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // ShAmt < NVTBits 12066fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi1 = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 12076fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getConstant(NVTBits-1, ShTy)); 12086fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo1 = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 12096fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 12106fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // ShAmt >= NVTBits 12116fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi2 = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); 12126fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo2 = DAG.getNode(ISD::OR, dl, NVT, 12136fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 12146fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt2)); 12156fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 12166fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Lo = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, Lo1, Lo2); 12176fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng Hi = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, Hi1, Hi2); 12186fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 12196fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 12206fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 12216fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return false; 12226fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng} 12236fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 122405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUB(SDNode *N, 1225475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1226786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 122705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1228475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 122905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 123005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 123129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 123229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands MVT NVT = LHSL.getValueType(); 1233475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1234475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 123505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 123629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // Do not generate ADDC/ADDE or SUBC/SUBE if the target does not support 123729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // them. TODO: Teach operation legalization how to expand unsupported 123829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // ADDC/ADDE/SUBC/SUBE. The problem is that these operations generate 123929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // a carry of type MVT::Flag, but there doesn't seem to be any way to 124029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // generate a value of this type in the expanded code sequence. 124129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands bool hasCarry = 1242f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(N->getOpcode() == ISD::ADD ? 1243f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman ISD::ADDC : ISD::SUBC, 1244f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.getTypeToExpandTo(NVT)); 124529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 124629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (hasCarry) { 1247874ae251c317788391f9c3f113957802d390a063Dale Johannesen SDVTList VTList = DAG.getVTList(NVT, MVT::Flag); 124829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1249786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 125029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1251786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 125229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1253786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 125429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1255786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 125629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 125705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 125829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1259786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, LoOps, 2); 1260786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, HiOps, 2); 1261786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Cmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[0], 126229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands ISD::SETULT); 1263786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Carry1 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp1, 126429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(1, NVT), 126529a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(0, NVT)); 1266786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Cmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[1], 126729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands ISD::SETULT); 1268786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Carry2 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp2, 126929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(1, NVT), Carry1); 1270786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, Carry2); 127129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1272786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUB, dl, NVT, LoOps, 2); 1273786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUB, dl, NVT, HiOps, 2); 12745480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands SDValue Cmp = 1275f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen DAG.getSetCC(dl, TLI.getSetCCResultType(LoOps[0].getValueType()), 12765480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LoOps[0], LoOps[1], ISD::SETULT); 1277786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Borrow = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, 127829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(1, NVT), 127929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands DAG.getConstant(0, NVT)); 1280786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUB, dl, NVT, Hi, Borrow); 128129a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 128205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 128305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 128405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 128505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBC(SDNode *N, 1286475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 128705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1288475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1289786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 129005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 129105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1292874ae251c317788391f9c3f113957802d390a063Dale Johannesen SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 1293475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1294475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 129505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 129605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::ADDC) { 1297786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 129805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1299786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 130005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1301786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 130205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1303786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 130405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 130505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1306874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1307874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1308475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 130905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 131005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 131105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBE(SDNode *N, 1312475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 131305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1314475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1315786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 131605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 131705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1318874ae251c317788391f9c3f113957802d390a063Dale Johannesen SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); 1319475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, N->getOperand(2) }; 1320475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 132105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1322786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, VTList, LoOps, 3); 132305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1324786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, VTList, HiOps, 3); 132505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1326874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1327874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1328475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 132905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 133005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 133105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ANY_EXTEND(SDNode *N, 1332475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 133305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 1334786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1335475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 133605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 133705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The low part is any extension of the input (which degenerates to a copy). 1338786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ANY_EXTEND, dl, NVT, Op); 1339e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); // The high part is undefined. 134005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 134105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 134205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 134305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 134405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1345475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 134605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 134705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 134805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 134905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 135005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 135105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 135205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 135395db39a9de48f69f4d764335b492b83a698c7854Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertSext(SDNode *N, 1354475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1355786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 135695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 135795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands MVT NVT = Lo.getValueType(); 135895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands MVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 135995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned NVTBits = NVT.getSizeInBits(); 136095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned EVTBits = EVT.getSizeInBits(); 136195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 136295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands if (NVTBits < EVTBits) { 1363786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertSext, dl, NVT, Hi, 136495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands DAG.getValueType(MVT::getIntegerVT(EVTBits - NVTBits))); 136595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } else { 1366786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertSext, dl, NVT, Lo, DAG.getValueType(EVT)); 136795db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // The high part replicates the sign bit of Lo, make it explicit. 1368786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 136992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVTBits-1, TLI.getPointerTy())); 137095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } 137195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 137295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 137305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertZext(SDNode *N, 1374475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1375786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 137605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 137705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = Lo.getValueType(); 137805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 137905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 138005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned EVTBits = EVT.getSizeInBits(); 138105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 138205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (NVTBits < EVTBits) { 1383786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertZext, dl, NVT, Hi, 138405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getValueType(MVT::getIntegerVT(EVTBits - NVTBits))); 138505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1386786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertZext, dl, NVT, Lo, DAG.getValueType(EVT)); 138705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part must be zero, make it explicit. 138805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 138905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 139005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 139105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 139205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_BSWAP(SDNode *N, 1393475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1394786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 139505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Hi, Lo); // Note swapped operands. 1396786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::BSWAP, dl, Lo.getValueType(), Lo); 1397786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::BSWAP, dl, Hi.getValueType(), Hi); 139805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 139905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 140005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Constant(SDNode *N, 1401475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 140205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 140305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NBitWidth = NVT.getSizeInBits(); 140405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const APInt &Cst = cast<ConstantSDNode>(N)->getAPIntValue(); 140505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(APInt(Cst).trunc(NBitWidth), NVT); 140605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(Cst.lshr(NBitWidth).trunc(NBitWidth), NVT); 140705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 140805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 140905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTLZ(SDNode *N, 1410475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1411786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 141205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctlz (HiLo) -> Hi != 0 ? ctlz(Hi) : (ctlz(Lo)+32) 141305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 141405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = Lo.getValueType(); 141505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1416786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Hi, 1417ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 141805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1419786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Lo); 1420786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Hi); 142105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1422786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, HiNotZero, HiLZ, 1423786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, LoLZ, 142405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 142505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 142605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 142705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 142805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTPOP(SDNode *N, 1429475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1430786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 143105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctpop(HiLo) -> ctpop(Hi)+ctpop(Lo) 143205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 143305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = Lo.getValueType(); 1434b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, DAG.getNode(ISD::CTPOP, dl, NVT, Lo), 1435786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::CTPOP, dl, NVT, Hi)); 143605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 143705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 143805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 143905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTTZ(SDNode *N, 1440475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1441786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 144205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // cttz (HiLo) -> Lo != 0 ? cttz(Lo) : (cttz(Hi)+32) 144305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 144405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = Lo.getValueType(); 144505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1446786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, 1447ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 144805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1449786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Lo); 1450786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Hi); 145105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1452786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, LoNotZero, LoLZ, 1453786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, HiLZ, 145405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 145505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 145605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 145705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1458475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo, 1459475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1460c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 146105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 1462475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1463b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT); 1464be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!"); 1465c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, true/*irrelevant*/, dl), Lo, Hi); 1466ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1467ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 1468475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo, 1469475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1470c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 147183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = N->getValueType(0); 1472475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1473b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Op.getValueType(), VT); 1474be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 1475c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, false/*irrelevant*/, dl), Lo, Hi); 1476ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1477ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 147869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N, 1479475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1480ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalLoad(N)) { 1481ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands ExpandRes_NormalLoad(N, Lo, Hi); 148278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands return; 148378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands } 148478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 148578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 148678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 148783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = N->getValueType(0); 148883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 1489475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 1490475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 1491cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::LoadExtType ExtType = N->getExtensionType(); 1492cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner int SVOffset = N->getSrcValueOffset(); 1493cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 1494cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 1495786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1496cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 149778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 1498cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 149978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 150083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = N->getMemoryVT(); 1501cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1502786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getSrcValue(), SVOffset, 1503786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen EVT, isVolatile, Alignment); 1504cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1505cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Remember the chain. 1506cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Ch = Lo.getValue(1); 1507cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1508cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExtType == ISD::SEXTLOAD) { 1509cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is obtained by SRA'ing all but one of the bits of the 1510cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // lo part. 151183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 1512786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 151392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 1514cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (ExtType == ISD::ZEXTLOAD) { 1515cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is just a zero. 1516cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = DAG.getConstant(0, NVT); 1517cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1518cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(ExtType == ISD::EXTLOAD && "Unknown extload!"); 1519cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is undefined. 1520e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); 1521cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1522cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 1523cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 1524786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getLoad(NVT, dl, Ch, Ptr, N->getSrcValue(), SVOffset, 1525cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, Alignment); 1526cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1527cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 152883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 152983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NEVT = MVT::getIntegerVT(ExcessBits); 1530cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1531cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 153283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1533786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 15340bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1535786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getSrcValue(), 1536cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner SVOffset+IncrementSize, NEVT, 1537cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, MinAlign(Alignment, IncrementSize)); 1538cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1539cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1540cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1541786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1542cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1543cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1544cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned loads at 1545cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 154683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = N->getMemoryVT(); 154783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EBytes = EVT.getStoreSizeInBits()/8; 154883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1549cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 1550cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1551cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load both the high bits and maybe some of the low bits. 1552786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getSrcValue(), SVOffset, 155383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntegerVT(EVT.getSizeInBits() - ExcessBits), 1554cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, Alignment); 1555cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1556cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 1557786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 15580bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1559cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load the rest of the low bits. 1560786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr, N->getSrcValue(), 156183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands SVOffset+IncrementSize, 156283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntegerVT(ExcessBits), 1563cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, MinAlign(Alignment, IncrementSize)); 1564cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1565cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1566cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1567786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1568cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1569cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 157083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 1571cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer low bits from the bottom of Hi to the top of Lo. 1572786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, Lo, 1573786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, Hi, 1574cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 157592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 1576cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Move high bits to the right position in Hi. 15777fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ExtType == ISD::SEXTLOAD ? ISD::SRA : ISD::SRL, dl, 1578786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, Hi, 157983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 158092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 1581cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1582cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1583cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1584cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Legalized the chain result - switch anything that used the old chain to 1585cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // use the new one. 1586475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Ch); 1587cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1588cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 158969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Logical(SDNode *N, 1590475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1591786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1592475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 159369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 159469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 1595786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LL, RL); 1596786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LH, RH); 1597cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1598cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 159905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N, 1600475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 160105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 160205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 1603c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 160469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1605f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, NVT); 1606f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, NVT); 1607f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, NVT); 1608f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, NVT); 1609cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 1610475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 161169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 161269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 161383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned OuterBitSize = VT.getSizeInBits(); 1614e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands unsigned InnerBitSize = NVT.getSizeInBits(); 1615cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned LHSSB = DAG.ComputeNumSignBits(N->getOperand(0)); 1616cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned RHSSB = DAG.ComputeNumSignBits(N->getOperand(1)); 161769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1618e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 1619e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (DAG.MaskedValueIsZero(N->getOperand(0), HighMask) && 1620e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands DAG.MaskedValueIsZero(N->getOperand(1), HighMask)) { 1621cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The inputs are both zero-extended. 1622cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1623cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a umul_lohi. 1624786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::UMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1625ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1626cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1627cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1628cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU) { 1629cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhu+mul. 1630786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1631786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1632cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1633cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1634cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1635e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 1636cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The input values are both sign-extended. 1637cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasSMUL_LOHI) { 1638cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a smul_lohi. 1639786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1640ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1641cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1642cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1643cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHS) { 1644cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhs+mul. 1645786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1646786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHS, dl, NVT, LL, RL); 1647cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1648cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1649cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1650cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1651cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Lo,Hi = umul LHS, RHS. 1652786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, dl, 1653cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getVTList(NVT, NVT), LL, RL); 1654cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Lo = UMulLOHI; 1655cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = UMulLOHI.getValue(1); 1656786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1657786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1658786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1659786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1660cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1661cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1662e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (HasMULHU) { 1663786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1664786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1665786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1666786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1667786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1668786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1669e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands return; 1670e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands } 1671cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 167241edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1673cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If nothing else, we can make a libcall. 16745ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 167515c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta if (VT == MVT::i16) 167615c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::MUL_I16; 167715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta else if (VT == MVT::i32) 16785ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I32; 16795ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands else if (VT == MVT::i64) 1680e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands LC = RTLIB::MUL_I64; 16815ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands else if (VT == MVT::i128) 16825ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I128; 16835ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"); 1684e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands 1685475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1686c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true/*irrelevant*/, dl), Lo, Hi); 168741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1688cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 168969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N, 1690475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 16915ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands MVT VT = N->getValueType(0); 1692c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 16935ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 16945ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1695a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta if (VT == MVT::i16) 1696a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SDIV_I16; 1697a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta else if (VT == MVT::i32) 16985ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I32; 16995ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands else if (VT == MVT::i64) 17005ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I64; 17015ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands else if (VT == MVT::i128) 17025ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I128; 17035ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!"); 17045ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 1705475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1706c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 1707ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1708ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 170969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N, 1710475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 171183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = N->getValueType(0); 1712c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 171369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 171469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // If we can emit an efficient shift operation, do so now. Check to see if 1715cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the RHS is a constant. 1716cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1))) 1717f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman return ExpandShiftByConstant(N, CN->getZExtValue(), Lo, Hi); 1718cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1719cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If we can determine that the high bit of the shift is zero or one, even if 1720cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the low bits are variable, emit this shift in an optimized form. 1721cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExpandShiftWithKnownAmountBit(N, Lo, Hi)) 1722cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 172369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1724cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this target supports shift_PARTS, use it. First, map to the _PARTS opc. 1725cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned PartsOpc; 172641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 1727cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SHL_PARTS; 172841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 1729cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRL_PARTS; 173041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 1731cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 1732cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRA_PARTS; 1733cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 173469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1735cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Next check to see if the target supports this SHL_PARTS operation or if it 1736cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // will custom expand it. 173783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 1738cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::LegalizeAction Action = TLI.getOperationAction(PartsOpc, NVT); 1739cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 1740cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Action == TargetLowering::Custom) { 1741cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Expand the subcomponents. 1742475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 174369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 174469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1745475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, N->getOperand(1) }; 174683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = LHSL.getValueType(); 1747fc1665793e62eb4f26d24b8a19eecf59cd872e2aDan Gohman Lo = DAG.getNode(PartsOpc, dl, DAG.getVTList(VT, VT), Ops, 3); 1748cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = Lo.getValue(1); 1749cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1750cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 175141edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1752cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Otherwise, emit a libcall. 1753dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 175441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands bool isSigned; 175541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 175641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; /*sign irrelevant*/ 175715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta if (VT == MVT::i16) 175815c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SHL_I16; 175915c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta else if (VT == MVT::i32) 1760dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I32; 1761dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i64) 1762dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I64; 1763dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i128) 1764dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I128; 176541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 176641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; 176715c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta if (VT == MVT::i16) 176815c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRL_I16; 176915c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta else if (VT == MVT::i32) 1770dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I32; 1771dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i64) 1772dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I64; 1773dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i128) 1774dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I128; 177541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 177641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 177741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = true; 177815c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta if (VT == MVT::i16) 177915c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRA_I16; 178015c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta else if (VT == MVT::i32) 1781dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I32; 1782dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i64) 1783dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I64; 1784dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands else if (VT == MVT::i128) 1785dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I128; 178641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } 17878c899ee031481dbece5f111379a274c848cb5902Duncan Sands 17886fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (LC != RTLIB::UNKNOWN_LIBCALL && TLI.getLibcallName(LC)) { 17896fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 17906fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SplitInteger(MakeLibCall(LC, VT, Ops, 2, isSigned, dl), Lo, Hi); 17916fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return; 17926fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 179341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 17946fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (!ExpandShiftWithUnknownAmountBit(N, Lo, Hi)) 17956fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng assert(0 && "Unsupported shift!"); 179641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1797cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 179805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SIGN_EXTEND(SDNode *N, 1799475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 180005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 1801786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1802475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 180305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 1804b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is sign extension of the input (degenerates to a copy). 1805786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND, dl, NVT, N->getOperand(0)); 180605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part is obtained by SRA'ing all but one of the bits of low part. 180705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned LoSize = NVT.getSizeInBits(); 1808786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 180992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 181005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 181105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 181205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 181305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 181405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1815475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 181605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 181705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 181805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 181905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 182005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 182105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 1822786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 182305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getValueType(MVT::getIntegerVT(ExcessBits))); 182405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 182505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 182605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 182705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer:: 1828475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi) { 1829786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 183069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 183105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 1832d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 183305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (EVT.bitsLE(Lo.getValueType())) { 183405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the low part if needed. 1835786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Lo.getValueType(), Lo, 183605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(1)); 1837d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 183805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part gets the sign extension from the lo-part. This handles 183905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // things like sextinreg V:i64 from i8. 1840786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, Hi.getValueType(), Lo, 184105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Hi.getValueType().getSizeInBits()-1, 184292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 184305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 184405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. Leave the low part alone, 184505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the high part. 184605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 184705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands EVT.getSizeInBits() - Lo.getValueType().getSizeInBits(); 1848786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 184905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getValueType(MVT::getIntegerVT(ExcessBits))); 185005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 185105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 1852d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 185305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N, 1854475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 185505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 1856c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 185705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 185805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1859a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta if (VT == MVT::i16) 1860a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SREM_I16; 1861a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta else if (VT == MVT::i32) 186205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I32; 186305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i64) 186405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I64; 186505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i128) 186605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I128; 186705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!"); 186805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1869475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1870c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 1871d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 1872d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 187305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N, 1874475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 187505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 1876786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1877786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::TRUNCATE, dl, NVT, N->getOperand(0)); 1878786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, 1879786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getOperand(0).getValueType(), N->getOperand(0), 188092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVT.getSizeInBits(), TLI.getPointerTy())); 1881786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::TRUNCATE, dl, NVT, Hi); 1882d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 1883d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 188405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N, 1885475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 188605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 1887c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1888d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 188905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1890a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta if (VT == MVT::i16) 1891a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UDIV_I16; 1892a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta else if (VT == MVT::i32) 189305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I32; 189405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i64) 189505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I64; 189605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i128) 189705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I128; 189805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!"); 1899d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1900475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1901c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 1902d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 1903cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 190405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N, 1905475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 190605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT VT = N->getValueType(0); 1907c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 190869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 190905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1910a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta if (VT == MVT::i16) 1911a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UREM_I16; 1912a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta else if (VT == MVT::i32) 191305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I32; 191405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i64) 191505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I64; 191605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (VT == MVT::i128) 191705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I128; 191805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!"); 1919cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1920475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1921c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 1922cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1923cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 192405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N, 1925475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 192683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(N->getValueType(0)); 1927786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1928475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 192905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 1930b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is zero extension of the input (degenerates to a copy). 1931786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N->getOperand(0)); 193205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // The high part is just a zero. 193305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 193405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 193505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 193605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 193705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1938475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 193905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 194005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 194105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 194205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 194305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 194405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 19454be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Hi = DAG.getZeroExtendInReg(Hi, dl, MVT::getIntegerVT(ExcessBits)); 19469e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman } 1947cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1948cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1949cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1950cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 195169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Operand Expansion 1952cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 1953cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 195405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandIntegerOperand - This method is called when the specified operand of 195505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// the specified node is found to need expansion. At this point, all of the 195605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// result types of the node are known to be legal, but other operands of the 195705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// node may need promotion or expansion as well as the specified one. 195805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer::ExpandIntegerOperand(SDNode *N, unsigned OpNo) { 195905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DEBUG(cerr << "Expand integer operand: "; N->dump(&DAG); cerr << "\n"); 1960475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 1961051bb7b07504be9f848f7cce802e62ed24980bc5Duncan Sands 1962f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 1963bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 196411ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands 1965bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 1966bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 196705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #ifndef NDEBUG 1968bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta cerr << "ExpandIntegerOperand Op #" << OpNo << ": "; 1969bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta N->dump(&DAG); cerr << "\n"; 197005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #endif 19717d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin LLVM_UNREACHABLE("Do not know how to expand this operator's operand!"); 1972bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta 1973bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BIT_CONVERT: Res = ExpandOp_BIT_CONVERT(N); break; 197492abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BR_CC: Res = ExpandIntOp_BR_CC(N); break; 197592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break; 1976bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break; 1977bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: Res = ExpandOp_INSERT_VECTOR_ELT(N); break; 1978bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SCALAR_TO_VECTOR: Res = ExpandOp_SCALAR_TO_VECTOR(N); break; 197992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SELECT_CC: Res = ExpandIntOp_SELECT_CC(N); break; 198092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SETCC: Res = ExpandIntOp_SETCC(N); break; 198192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SINT_TO_FP: Res = ExpandIntOp_SINT_TO_FP(N); break; 198292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::STORE: Res = ExpandIntOp_STORE(cast<StoreSDNode>(N), OpNo); break; 198392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::TRUNCATE: Res = ExpandIntOp_TRUNCATE(N); break; 198492abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::UINT_TO_FP: Res = ExpandIntOp_UINT_TO_FP(N); break; 198555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 198655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 198755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 198855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 198955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 199055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = ExpandIntOp_Shift(N); break; 199105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 199269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 199305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If the result is null, the sub-method took care of registering results etc. 1994ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Res.getNode()) return false; 199547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 199647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 199747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 199847d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 199905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 2000cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 200105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 200205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Invalid operand expansion"); 200305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2004475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 200505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 2006cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2007cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 200811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// IntegerExpandSetCCOperands - Expand the operands of a comparison. This code 200911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// is shared among BR_CC, SELECT_CC, and SETCC handlers. 2010475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::IntegerExpandSetCCOperands(SDValue &NewLHS, 2011475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &NewRHS, 2012c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen ISD::CondCode &CCCode, 2013c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl) { 2014475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 201569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewLHS, LHSLo, LHSHi); 201669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewRHS, RHSLo, RHSHi); 201741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 201883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = NewLHS.getValueType(); 201941edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2020cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (CCCode == ISD::SETEQ || CCCode == ISD::SETNE) { 202111ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (RHSLo == RHSHi) { 202211ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) { 2023cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (RHSCST->isAllOnesValue()) { 2024cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Equality comparison to -1. 20257fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands NewLHS = DAG.getNode(ISD::AND, dl, 2026786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHSLo.getValueType(), LHSLo, LHSHi); 2027cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSLo; 2028cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2029cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 203011ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 203111ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 203269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2033786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSLo, RHSLo); 2034786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewRHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSHi, RHSHi); 2035786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::OR, dl, NewLHS.getValueType(), NewLHS, NewRHS); 2036cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 2037cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2038cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 203969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2040cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this is a comparison of the sign bit, just look at the top part. 2041cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // X > -1, x < 0 2042cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(NewRHS)) 2043002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((CCCode == ISD::SETLT && CST->isNullValue()) || // X < 0 2044cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETGT && CST->isAllOnesValue())) { // X > -1 2045cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = LHSHi; 2046cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSHi; 2047cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2048cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 204969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2050cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // FIXME: This generated code sucks. 2051cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::CondCode LowCC; 2052cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (CCCode) { 2053cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: assert(0 && "Unknown integer setcc!"); 2054cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLT: 2055cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULT: LowCC = ISD::SETULT; break; 2056cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGT: 2057cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2058cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLE: 2059cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULE: LowCC = ISD::SETULE; break; 2060cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGE: 2061cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2062cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 206369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2064cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2065cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2066cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 206769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2068cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // NOTE: on targets without efficient SELECT of bools, we can always use 2069cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 2070cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); 2071475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2; 20725480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo.getValueType()), 2073ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSLo, RHSLo, LowCC, false, DagCombineInfo, dl); 2074ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 2075786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()), 20765480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSLo, RHSLo, LowCC); 20775480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2078ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, CCCode, false, DagCombineInfo, dl); 2079ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 2080786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp2 = DAG.getNode(ISD::SETCC, dl, 2081786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(LHSHi.getValueType()), 20825480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, DAG.getCondCode(CCCode)); 208369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2084ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 2085ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 2086002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 2087002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 2088cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 2089cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 2090002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 2091cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 2092cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 2093cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // low part is known false, returns high part. 2094cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LE / GE, if high part is known false, ignore the low part. 2095cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LT / GT, if high part is known true, ignore the low part. 2096cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = Tmp2; 2097475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2098cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2099cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 210069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 21015480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands NewLHS = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2102fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel LHSHi, RHSHi, ISD::SETEQ, false, 2103ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen DagCombineInfo, dl); 2104ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!NewLHS.getNode()) 2105786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()), 21065480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, ISD::SETEQ); 2107786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::SELECT, dl, Tmp1.getValueType(), 2108cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS, Tmp1, Tmp2); 2109475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2110cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2111cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2112475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_BR_CC(SDNode *N) { 2113475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3); 211405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get(); 2115c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 211605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 211705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 211805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2119ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 212005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 212105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 212205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 212305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 212405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2125475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), 212605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode), NewLHS, NewRHS, 212705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(4)); 212805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 212905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2130475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SELECT_CC(SDNode *N) { 2131475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 213205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get(); 2133c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 213405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 213505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 213605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2137ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 213805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 213905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 214005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 214105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 214205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2143475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), NewLHS, NewRHS, 214405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(2), N->getOperand(3), 214505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode)); 214605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 214705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2148475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SETCC(SDNode *N) { 2149475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 215005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get(); 2151c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 215205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 215305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, use it. 2154ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 215505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(NewLHS.getValueType() == N->getValueType(0) && 215605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Unexpected setcc expansion!"); 215705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return NewLHS; 215805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 215905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 216005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, update N to have the operands specified. 2161475871a144eb604ddaf37503397ba0941442e5fbDan Gohman return DAG.UpdateNodeOperands(SDValue(N, 0), NewLHS, NewRHS, 216205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode)); 216305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 216405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 216555467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::ExpandIntOp_Shift(SDNode *N) { 216655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // The value being shifted is legal, but the shift amount is too big. 216755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // It follows that either the result of the shift is undefined, or the 216855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // upper half of the shift amount is zero. Just use the lower half. 216955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta SDValue Lo, Hi; 217055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta GetExpandedInteger(N->getOperand(1), Lo, Hi); 217155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta return DAG.UpdateNodeOperands(SDValue(N, 0), N->getOperand(0), Lo); 217255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 217355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 2174475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) { 2175475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 217605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT DstVT = N->getValueType(0); 2177b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT); 217805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 217905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this SINT_TO_FP!"); 2180c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, N->getDebugLoc()); 218105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 218205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2183475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) { 2184ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalStore(N)) 2185ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands return ExpandOp_NormalStore(N, OpNo); 218678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 218778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 2188cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(OpNo == 1 && "Can only expand the stored value so far"); 2189cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 219083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT VT = N->getOperand(1).getValueType(); 219183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NVT = TLI.getTypeToTransformTo(VT); 2192475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 2193475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 2194cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner int SVOffset = N->getSrcValueOffset(); 2195cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 2196cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 2197786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2198475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2199cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2200a1ace76c70ae5332d6f33fce5c0c1e2fdb8cca11Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 2201cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 220278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 220369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2204786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getSrcValue(), SVOffset, 2205b625f2f8960de32bc973092aaee8ac62863006feDan Gohman N->getMemoryVT(), isVolatile, Alignment); 2206cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 2207cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 220869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2209cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2210786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getStore(Ch, dl, Lo, Ptr, N->getSrcValue(), SVOffset, 2211cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, Alignment); 2212cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2213cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 221483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 221583ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT NEVT = MVT::getIntegerVT(ExcessBits); 2216cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2217cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 221883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2219786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 22200bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2221786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getSrcValue(), 2222cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner SVOffset+IncrementSize, NEVT, 2223cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, MinAlign(Alignment, IncrementSize)); 2224786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2225cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 2226cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned stores at 2227cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 222869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2229cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 223083ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT EVT = N->getMemoryVT(); 223183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned EBytes = EVT.getStoreSizeInBits()/8; 223283ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2233cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 223483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT HiVT = MVT::getIntegerVT(EVT.getSizeInBits() - ExcessBits); 2235cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 223683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 2237cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer high bits from the top of Lo to the bottom of Hi. 2238786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, Hi, 223983ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 224092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 2241786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::OR, dl, NVT, Hi, 2242de06470330260f5937e7ca558f5f5b3e171f2ee5Dale Johannesen DAG.getNode(ISD::SRL, dl, NVT, Lo, 2243cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 224492abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 2245cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2246cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2247cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Store both the high bits and maybe some of the low bits. 2248786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getSrcValue(), 2249cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner SVOffset, HiVT, isVolatile, Alignment); 2250cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2251cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 2252786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 22530bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2254cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Store the lowest ExcessBits bits in the second half. 2255786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getSrcValue(), 2256cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner SVOffset+IncrementSize, 225783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands MVT::getIntegerVT(ExcessBits), 2258cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner isVolatile, MinAlign(Alignment, IncrementSize)); 2259786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2260cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2261cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 226205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2263475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_TRUNCATE(SDNode *N) { 2264475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 226505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 226605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Just truncate the low part of the source. 2267786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), InL); 226805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 226905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2270475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) { 2271475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 227205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT SrcVT = Op.getValueType(); 227305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands MVT DstVT = N->getValueType(0); 2274c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 227505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 227605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.getOperationAction(ISD::SINT_TO_FP, SrcVT) == TargetLowering::Custom){ 227705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Do a signed conversion then adjust the result. 2278786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SignedConv = DAG.getNode(ISD::SINT_TO_FP, dl, DstVT, Op); 227905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SignedConv = TLI.LowerOperation(SignedConv, DAG); 228005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 228105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The result of the signed conversion needs adjusting if the 'sign bit' of 228205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // the incoming integer was set. To handle this, we dynamically test to see 228305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // if it is set, and, if so, add a fudge factor. 228405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 228505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE32 = 0x4F800000ULL; 228605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE64 = 0x5F800000ULL; 228705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE128 = 0x7F800000ULL; 228805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 228905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt FF(32, 0); 229005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (SrcVT == MVT::i32) 229105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE32); 229205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (SrcVT == MVT::i64) 229305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE64); 229405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else if (SrcVT == MVT::i128) 229505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE128); 229605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else 229705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(false && "Unsupported UINT_TO_FP!"); 229805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 229905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Check whether the sign bit is set. 2300475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 230105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(Op, Lo, Hi); 23027fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue SignSet = DAG.getSetCC(dl, 2303786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(Hi.getValueType()), 23045480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Hi, DAG.getConstant(0, Hi.getValueType()), 2305ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands ISD::SETLT); 230605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 230705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Build a 64 bit pair (0, FF) in the constant pool, with FF in the lo bits. 2308475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue FudgePtr = DAG.getConstantPool(ConstantInt::get(FF.zext(64)), 230949c18cce976c158e86f54c681dff21bb81640fb8Duncan Sands TLI.getPointerTy()); 231005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 231105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get a pointer to FF if the sign bit was set, or to 0 otherwise. 2312475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0); 2313475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Four = DAG.getIntPtrConstant(4); 231405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.isBigEndian()) std::swap(Zero, Four); 2315786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Offset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), SignSet, 2316ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands Zero, Four); 23171606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(FudgePtr)->getAlignment(); 2318786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen FudgePtr = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), FudgePtr, Offset); 231987a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 232005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 232105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Load the value out, extending it from f32 to the destination float type. 232205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // FIXME: Avoid the extend by constructing the right constant pool? 2323786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Fudge = DAG.getExtLoad(ISD::EXTLOAD, dl, DstVT, DAG.getEntryNode(), 232487a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman FudgePtr, NULL, 0, MVT::f32, 232587a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman false, Alignment); 2326786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::FADD, dl, DstVT, SignedConv, Fudge); 232705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 232805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 232905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, use a libcall. 2330b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT); 233105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 233205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this UINT_TO_FP!"); 2333c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, dl); 233405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2335