LegalizeIntegerTypes.cpp revision 53dfa78e4133f6cdb5d860279adc337ea099ac15
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" 24fd87a544c00c2ca04ee23aae67bbcad4dc852a54Dan Gohman#include "llvm/Support/raw_ostream.h" 25cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattnerusing namespace llvm; 26cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 27cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Promotion 29cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 30cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 3169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteIntegerResult - This method is called when a result of a node is 3269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// found to be in need of promotion to a larger type. At this point, the node 3369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// may also have invalid operands or may have other results that need 3469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// expansion, we just know that (at least) one result needs promotion. 3569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::PromoteIntegerResult(SDNode *N, unsigned ResNo) { 36d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer result: "; N->dump(&DAG); dbgs() << "\n"); 379fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SDValue Res = SDValue(); 3869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 39126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands // See if the target wants to custom expand this node. 40f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 411607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 42126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 4369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (N->getOpcode()) { 4469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 4569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#ifndef NDEBUG 46d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerResult #" << ResNo << ": "; 47d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 4869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands#endif 49c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator!"); 509fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertSext: Res = PromoteIntRes_AssertSext(N); break; 519fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::AssertZext: Res = PromoteIntRes_AssertZext(N); break; 52bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntRes_BITCAST(N); break; 539fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BSWAP: Res = PromoteIntRes_BSWAP(N); break; 549fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::BUILD_PAIR: Res = PromoteIntRes_BUILD_PAIR(N); break; 559fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::Constant: Res = PromoteIntRes_Constant(N); break; 5600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang case ISD::CONVERT_RNDSAT: 579fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_CONVERT_RNDSAT(N); break; 589fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTLZ: Res = PromoteIntRes_CTLZ(N); break; 599fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTPOP: Res = PromoteIntRes_CTPOP(N); break; 609fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::CTTZ: Res = PromoteIntRes_CTTZ(N); break; 61bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ISD::EXTRACT_VECTOR_ELT: 629fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_EXTRACT_VECTOR_ELT(N); break; 639fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::LOAD: Res = PromoteIntRes_LOAD(cast<LoadSDNode>(N));break; 649fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT: Res = PromoteIntRes_SELECT(N); break; 659fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SELECT_CC: Res = PromoteIntRes_SELECT_CC(N); break; 669fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SETCC: Res = PromoteIntRes_SETCC(N); break; 679fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SHL: Res = PromoteIntRes_SHL(N); break; 688d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands case ISD::SIGN_EXTEND_INREG: 699fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_SIGN_EXTEND_INREG(N); break; 709fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRA: Res = PromoteIntRes_SRA(N); break; 719fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SRL: Res = PromoteIntRes_SRL(N); break; 729fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::TRUNCATE: Res = PromoteIntRes_TRUNCATE(N); break; 739fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UNDEF: Res = PromoteIntRes_UNDEF(N); break; 749fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::VAARG: Res = PromoteIntRes_VAARG(N); break; 75bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 7669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SIGN_EXTEND: 7769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ZERO_EXTEND: 789fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::ANY_EXTEND: Res = PromoteIntRes_INT_EXTEND(N); break; 79bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 8069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: 819fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::FP_TO_UINT: Res = PromoteIntRes_FP_TO_XINT(N); break; 8269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 83927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP32_TO_FP16:Res = PromoteIntRes_FP32_TO_FP16(N); break; 84927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 8569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AND: 8669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::OR: 8769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::XOR: 8869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ADD: 8969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SUB: 909fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::MUL: Res = PromoteIntRes_SimpleIntBinOp(N); break; 9169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 9269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SDIV: 939fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SREM: Res = PromoteIntRes_SDIV(N); break; 9469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 9569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::UDIV: 969fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UREM: Res = PromoteIntRes_UDIV(N); break; 978ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 98253174bf50c932abaa680f465e2888c0e5272267Bill Wendling case ISD::SADDO: 999fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::SSUBO: Res = PromoteIntRes_SADDSUBO(N, ResNo); break; 10074c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::UADDO: 1019fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::USUBO: Res = PromoteIntRes_UADDSUBO(N, ResNo); break; 10274c376529101acbe141a256d0bf23a44eb454c84Bill Wendling case ISD::SMULO: 1039fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands case ISD::UMULO: Res = PromoteIntRes_XMULO(N, ResNo); break; 104b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1050b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_ADD: 1060b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_SUB: 1070b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_AND: 1080b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_OR: 1090b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_XOR: 1100b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_NAND: 1110b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MIN: 1120b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_MAX: 1130b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMIN: 1140b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_LOAD_UMAX: 1150b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_SWAP: 1169fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic1(cast<AtomicSDNode>(N)); break; 117b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 1180b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman case ISD::ATOMIC_CMP_SWAP: 1199fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands Res = PromoteIntRes_Atomic2(cast<AtomicSDNode>(N)); break; 12069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 12169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1229fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands // If the result is null then the sub-method took care of registering it. 1239fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (Res.getNode()) 1249fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands SetPromotedInteger(SDValue(N, ResNo), Res); 12569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 12669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 127475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertSext(SDNode *N) { 12895db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Sign-extend the new bits, and continue the assertion. 129c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = SExtPromotedInteger(N->getOperand(0)); 130786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertSext, N->getDebugLoc(), 131786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 13295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 13395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 134475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_AssertZext(SDNode *N) { 13595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // Zero the new bits, and continue the assertion. 136c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 137786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::AssertZext, N->getDebugLoc(), 138786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 13995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 14095db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 141b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic1(AtomicSDNode *N) { 142b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 1437fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 144786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getMemoryVT(), 1450b1d4a798d1dd2f39521b6b381cd1c1911c9ab52Dan Gohman N->getChain(), N->getBasePtr(), 1460531356e4da1451b1b0b9e8c85365c2a58ca8282Chris Lattner Op2, N->getMemOperand()); 147b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 148b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 149b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 150b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 151b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 152b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 153b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Atomic2(AtomicSDNode *N) { 154b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op2 = GetPromotedInteger(N->getOperand(2)); 155b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands SDValue Op3 = GetPromotedInteger(N->getOperand(3)); 156fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel SDValue Res = DAG.getAtomic(N->getOpcode(), N->getDebugLoc(), 157f8d3ec2c5725a2010f11de4ba78f6127712a5fe7Dale Johannesen N->getMemoryVT(), N->getChain(), N->getBasePtr(), 1580531356e4da1451b1b0b9e8c85365c2a58ca8282Chris Lattner Op2, Op3, N->getMemOperand()); 159b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // Legalized the chain result - switch anything that used the old chain to 160b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands // use the new one. 161b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 162b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands return Res; 163b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands} 164b5f68e241f9eb19e5694131df830acbfce20a6ebDuncan Sands 165bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntRes_BITCAST(SDNode *N) { 166475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InOp = N->getOperand(0); 167e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT InVT = InOp.getValueType(); 16823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NInVT = TLI.getTypeToTransformTo(*DAG.getContext(), InVT); 169e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OutVT = N->getValueType(0); 17023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NOutVT = TLI.getTypeToTransformTo(*DAG.getContext(), OutVT); 171786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 17269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 17369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (getTypeAction(InVT)) { 17469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands default: 17569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(false && "Unknown type action!"); 17669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 17769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case Legal: 17869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 17969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case PromoteInteger: 18047d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (NOutVT.bitsEq(NInVT)) 18169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The input promotes to the same size. Convert the promoted value. 182bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, GetPromotedInteger(InOp)); 18369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 1844fc4fd657d4266059dac3849133a3a351b03d99dDuncan Sands case SoftenFloat: 18569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the integer operand by hand. 186786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, GetSoftenedFloat(InOp)); 18769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ExpandInteger: 18869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ExpandFloat: 18969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands break; 190f4e4629ee8c218f892ad8ae3e182fe40bc160895Duncan Sands case ScalarizeVector: 19169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Convert the element to an integer and promote it by hand. 192786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 19369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands BitConvertToInteger(GetScalarizedVector(InOp))); 19487c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang case SplitVector: { 195bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck // For example, i32 = BITCAST v2i16 on alpha. Convert the split 19669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // pieces of the input into integers and reassemble in the final type. 197475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 19869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetSplitVector(N->getOperand(0), Lo, Hi); 19969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Lo = BitConvertToInteger(Lo); 20069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands Hi = BitConvertToInteger(Hi); 20169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 20269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (TLI.isBigEndian()) 20369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands std::swap(Lo, Hi); 20469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 205786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen InOp = DAG.getNode(ISD::ANY_EXTEND, dl, 206adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng EVT::getIntegerVT(*DAG.getContext(), 207adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng NOutVT.getSizeInBits()), 20869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands JoinIntegers(Lo, Hi)); 209bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, NOutVT, InOp); 21069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 21187c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang case WidenVector: 21287c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang if (OutVT.bitsEq(NInVT)) 21387c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang // The input is widened to the same size. Convert to the widened value. 214bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck return DAG.getNode(ISD::BITCAST, dl, OutVT, GetWidenedVector(InOp)); 21587c8a8f304d1ee72829086ce2c41a8fa3813ba6aMon P Wang } 21669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 217aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman return DAG.getNode(ISD::ANY_EXTEND, dl, NOutVT, 218aad3460086a1b29c55f7490c6d8743ea4e53f07dEli Friedman CreateStackStoreLoad(InOp, OutVT)); 21969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 22069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 221475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BSWAP(SDNode *N) { 222475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 223e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 224e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 225786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 226c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 227c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); 228786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, dl, NVT, DAG.getNode(ISD::BSWAP, dl, NVT, Op), 22953dfa78e4133f6cdb5d860279adc337ea099ac15Duncan Sands DAG.getConstant(DiffBits, TLI.getPointerTy())); 230c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands} 231c07e6e53f757da1a7c79c66ed53f2844de85a77eDuncan Sands 232475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_BUILD_PAIR(SDNode *N) { 233bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The pair element type may be legal, or may not promote to the same type as 234bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // the result, for example i14 = BUILD_PAIR (i7, i7). Handle all cases. 235786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), 23654e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), 23754e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getValueType(0)), JoinIntegers(N->getOperand(0), 23854e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher N->getOperand(1))); 23969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 24069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 241475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_Constant(SDNode *N) { 242e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 243b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen // FIXME there is no actual debug info here 244b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 245bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Zero extend things like i1, sign extend everything else. It shouldn't 246bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // matter in theory which one we pick, but this tends to give better code? 247bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Opc = VT.isByteSized() ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND; 24854e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher SDValue Result = DAG.getNode(Opc, dl, 24954e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToTransformTo(*DAG.getContext(), VT), 250a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands SDValue(N, 0)); 251bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(isa<ConstantSDNode>(Result) && "Didn't constant fold ext?"); 252bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Result; 25369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 25469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 25500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P WangSDValue DAGTypeLegalizer::PromoteIntRes_CONVERT_RNDSAT(SDNode *N) { 25600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 25700ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 25800ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 25900ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang CvtCode == ISD::CVT_SF || CvtCode == ISD::CVT_UF) && 26000ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang "can only promote integers"); 26123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT OutVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 262c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(OutVT, N->getDebugLoc(), N->getOperand(0), 26300ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(1), N->getOperand(2), 26400ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 26500ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang} 26600ec49b6bafc33ee17d97ec1c723e1edb41d4c97Mon P Wang 267475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTLZ(SDNode *N) { 268c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands // Zero extend to the promoted type and do the count there. 269c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 270b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen DebugLoc dl = N->getDebugLoc(); 271e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 272e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 273b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Op = DAG.getNode(ISD::CTLZ, dl, NVT, Op); 27469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Subtract off the extra leading bits in the bigger type. 275b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen return DAG.getNode(ISD::SUB, dl, NVT, Op, 27669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands DAG.getConstant(NVT.getSizeInBits() - 27769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands OVT.getSizeInBits(), NVT)); 27869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 27969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 280475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTPOP(SDNode *N) { 28169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Zero extend to the promoted type and do the count there. 282c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Op = ZExtPromotedInteger(N->getOperand(0)); 283786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTPOP, N->getDebugLoc(), Op.getValueType(), Op); 28469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 28569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 286475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_CTTZ(SDNode *N) { 287475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 288e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getValueType(0); 289e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Op.getValueType(); 290786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 29169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The count is the same in the promoted type except if the original 29269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // value was zero. This can be handled by setting the bit just off 29369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the top of the original type. 29403dc093a2e63d20984c8fd67809fa762f1e31f1aDuncan Sands APInt TopBit(NVT.getSizeInBits(), 0); 2957a874ddda037349184fbeb22838cc11a1a9bb78fJay Foad TopBit.setBit(OVT.getSizeInBits()); 296786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::OR, dl, NVT, Op, DAG.getConstant(TopBit, NVT)); 297786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::CTTZ, dl, NVT, Op); 29869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 29969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 300475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N) { 301786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 30223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 303c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman return DAG.getNode(ISD::EXTRACT_VECTOR_ELT, dl, NVT, N->getOperand(0), 304c680ac90032bf455b2bba77de538fccea08eb267Eli Friedman N->getOperand(1)); 30569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 30669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 307475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_FP_TO_XINT(SDNode *N) { 30823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 309a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands unsigned NewOpc = N->getOpcode(); 310786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 311d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 3124c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // If we're promoting a UINT to a larger size and the larger FP_TO_UINT is 3134c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen // not Legal, check to see if we can use FP_TO_SINT instead. (If both UINT 31454e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // and SINT conversions are Custom, there is no way to tell which is 31554e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher // preferable. We choose SINT because that's the right thing on PPC.) 316a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands if (N->getOpcode() == ISD::FP_TO_UINT && 3174c9369df57a52cec5e1fc735e61a979766288074Dale Johannesen !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && 318f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::FP_TO_SINT, NVT)) 319a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NewOpc = ISD::FP_TO_SINT; 320a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 321786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(NewOpc, dl, NVT, N->getOperand(0)); 322a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands 323a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // Assert that the converted value fits in the original type. If it doesn't 324a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // (eg: because the value being converted is too big), then the result of the 325a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands // original operation was undefined anyway, so the assert is still correct. 326a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands return DAG.getNode(N->getOpcode() == ISD::FP_TO_UINT ? 327786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen ISD::AssertZext : ISD::AssertSext, dl, 328a29c13086a3add78a3a79f744573fe09eaa9dc88Duncan Sands NVT, Res, DAG.getValueType(N->getValueType(0))); 329d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands} 330d3ca9fc9984d036146886a40ad3f73aaf7a424ebDuncan Sands 331927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton KorobeynikovSDValue DAGTypeLegalizer::PromoteIntRes_FP32_TO_FP16(SDNode *N) { 332927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 333927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov DebugLoc dl = N->getDebugLoc(); 334927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 335927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov SDValue Res = DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 336927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 337927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov return DAG.getNode(ISD::AssertZext, dl, 338927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov NVT, Res, DAG.getValueType(N->getValueType(0))); 339927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov} 340927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov 341475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_INT_EXTEND(SDNode *N) { 34223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 343786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 344be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 345bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (getTypeAction(N->getOperand(0).getValueType()) == PromoteInteger) { 346475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(N->getOperand(0)); 3476959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(Res.getValueType().bitsLE(NVT) && "Extension doesn't make sense!"); 348126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands 349bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result and operand types are the same after promotion, simplify 350bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // to an in-register extension. 351bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (NVT == Res.getValueType()) { 352bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The high bits are not guaranteed to be anything. Insert an extend. 353bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::SIGN_EXTEND) 354786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 355bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands DAG.getValueType(N->getOperand(0).getValueType())); 356bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands if (N->getOpcode() == ISD::ZERO_EXTEND) 3574be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen return DAG.getZeroExtendInReg(Res, dl, N->getOperand(0).getValueType()); 358bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(N->getOpcode() == ISD::ANY_EXTEND && "Unknown integer extension!"); 359bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 360126d90770bdb17e6925b2fe26de99aa079b7b9b3Duncan Sands } 36169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 36269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 363bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Otherwise, just extend the original operand all the way to the larger type. 364786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), dl, NVT, N->getOperand(0)); 365bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 36669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 367475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_LOAD(LoadSDNode *N) { 368bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 36923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 370bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::LoadExtType ExtType = 371bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands ISD::isNON_EXTLoad(N) ? ISD::EXTLOAD : N->getExtensionType(); 372786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 373a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Res = DAG.getExtLoad(ExtType, dl, NVT, N->getChain(), N->getBasePtr(), 3743d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner N->getPointerInfo(), 37547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands N->getMemoryVT(), N->isVolatile(), 3761e559443a17d1b335f697551c6263ba60d5dd827David Greene N->isNonTemporal(), N->getAlignment()); 37769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 378bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Legalized the chain result - switch anything that used the old chain to 379bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 380475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Res.getValue(1)); 381bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return Res; 38269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 38369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 384874ae251c317788391f9c3f113957802d390a063Dale Johannesen/// Promote the overflow flag of an overflowing arithmetic node. 385ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_Overflow(SDNode *N) { 386ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Simply change the return type of the boolean result. 38723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(1)); 388e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ValueVTs[] = { N->getValueType(0), NVT }; 389ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue Ops[] = { N->getOperand(0), N->getOperand(1) }; 390786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(N->getOpcode(), N->getDebugLoc(), 391786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getVTList(ValueVTs, 2), Ops, 2); 392ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 393ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Modified the sum result - switch anything that used the old sum to use 394ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the new one. 395ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 0), Res); 396ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 397ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return SDValue(Res.getNode(), 1); 398ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 399ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 400ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo) { 401ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 402ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 403ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 404ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 405ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // sign extension of its truncation to the original type. 406ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 407ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 408e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 409e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 410786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 411ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 412ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 413ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::SADDO ? ISD::ADD : ISD::SUB; 414786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 415ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 416ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: sign extend the arithmetic result from 417ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 418786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Ofl = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, NVT, Res, 419ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands DAG.getValueType(OVT)); 420ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 421786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 422ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 423ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 424ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 425ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 426ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 427ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 428ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 429475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SDIV(SDNode *N) { 430bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Sign extend the input. 431c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = SExtPromotedInteger(N->getOperand(0)); 432c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = SExtPromotedInteger(N->getOperand(1)); 433786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 434786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 43569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 43669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 437475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT(SDNode *N) { 438475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(1)); 439475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(2)); 440786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT, N->getDebugLoc(), 441786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0),LHS,RHS); 44269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 44369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 444475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SELECT_CC(SDNode *N) { 445475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(2)); 446475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(3)); 447786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SELECT_CC, N->getDebugLoc(), 448786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), N->getOperand(0), 449bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands N->getOperand(1), LHS, RHS, N->getOperand(4)); 45069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 45169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 452475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SETCC(SDNode *N) { 453e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = TLI.getSetCCResultType(N->getOperand(0).getValueType()); 4547e4982287591945c4e42ba8470a978e629789c76Duncan Sands assert(isTypeLegal(SVT) && "Illegal SetCC type!"); 455786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 4567e4982287591945c4e42ba8470a978e629789c76Duncan Sands 4577e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Get the SETCC result using the canonical SETCC type. 458786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SetCC = DAG.getNode(ISD::SETCC, dl, SVT, N->getOperand(0), 4597e4982287591945c4e42ba8470a978e629789c76Duncan Sands N->getOperand(1), N->getOperand(2)); 4607e4982287591945c4e42ba8470a978e629789c76Duncan Sands 4617e4982287591945c4e42ba8470a978e629789c76Duncan Sands // Convert to the expected type. 46223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 4636959b2bb6521baca57e5507ca039e51002d4a971Duncan Sands assert(NVT.bitsLE(SVT) && "Integer type overpromoted?"); 464786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, dl, NVT, SetCC); 46569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 46669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 467475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SHL(SDNode *N) { 468786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SHL, N->getDebugLoc(), 469182465c589f95ff165331d06035ec53ff05bf1f5Evan Cheng TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)), 470bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands GetPromotedInteger(N->getOperand(0)), N->getOperand(1)); 47169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 47269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 473475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N) { 474475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 475786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, N->getDebugLoc(), 476786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op.getValueType(), Op, N->getOperand(1)); 4778d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands} 4788d56a6f4d8b010d4c582225a08ece971613f6fe3Duncan Sands 479475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SimpleIntBinOp(SDNode *N) { 480bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input may have strange things in the top bits of the registers, but 481bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // these operations don't care. They may have weird bits going out, but 482bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // that too is okay if they are integer operations. 483475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = GetPromotedInteger(N->getOperand(0)); 484475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = GetPromotedInteger(N->getOperand(1)); 485786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 486786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 48769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 48869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 489475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRA(SDNode *N) { 490bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly sign extended. 491c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Res = SExtPromotedInteger(N->getOperand(0)); 492786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRA, N->getDebugLoc(), 493786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res.getValueType(), Res, N->getOperand(1)); 494bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 49569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 496475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_SRL(SDNode *N) { 497bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The input value must be properly zero extended. 498e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 49923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 500475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = ZExtPromotedInteger(N->getOperand(0)); 501786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SRL, N->getDebugLoc(), NVT, Res, N->getOperand(1)); 50269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 50369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 504475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_TRUNCATE(SDNode *N) { 50523b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 506475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res; 50769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 508bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands switch (getTypeAction(N->getOperand(0).getValueType())) { 509c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown type action!"); 510bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case Legal: 511bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case ExpandInteger: 512bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Res = N->getOperand(0); 513bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 514bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands case PromoteInteger: 515bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Res = GetPromotedInteger(N->getOperand(0)); 516bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands break; 517bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands } 518bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 519bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate to NVT instead of VT 520786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), NVT, Res); 52169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 52269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 523ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo) { 524ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands if (ResNo == 1) 525ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return PromoteIntRes_Overflow(N); 526ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 527ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // The operation overflowed iff the result in the larger type is not the 528ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // zero extension of its truncation to the original type. 529c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 530c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 531e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 532e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHS.getValueType(); 533786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 53469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 535ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Do the arithmetic in the larger type. 536ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands unsigned Opcode = N->getOpcode() == ISD::UADDO ? ISD::ADD : ISD::SUB; 537786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(Opcode, dl, NVT, LHS, RHS); 5388ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 539ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Calculate the overflow flag: zero extend the arithmetic result from 540ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // the original type. 5414be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen SDValue Ofl = DAG.getZeroExtendInReg(Res, dl, OVT); 542ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Overflowed if and only if this is not equal to Res. 543786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ofl = DAG.getSetCC(dl, N->getValueType(1), Ofl, Res, ISD::SETNE); 5448ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 545ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Use the calculated overflow everywhere. 546ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands ReplaceValueWith(SDValue(N, 1), Ofl); 5478ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 548ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands return Res; 549ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands} 550ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands 5515c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris LattnerSDValue DAGTypeLegalizer::PromoteIntRes_XMULO(SDNode *N, unsigned ResNo) { 5525c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Promote the overflow bit trivially. 5535c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (ResNo == 1) 5545c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return PromoteIntRes_Overflow(N); 555fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 5565c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue LHS = N->getOperand(0), RHS = N->getOperand(1); 5575c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DebugLoc DL = N->getDebugLoc(); 558fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands EVT SmallVT = LHS.getValueType(); 559fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 5605c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // To determine if the result overflowed in a larger type, we extend the input 5615c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // to the larger type, do the multiply, then check the high bits of the result 5625c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // to see if the overflow happened. 5635c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::SMULO) { 5645c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = SExtPromotedInteger(LHS); 5655c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = SExtPromotedInteger(RHS); 5665c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 5675c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner LHS = ZExtPromotedInteger(LHS); 5685c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner RHS = ZExtPromotedInteger(RHS); 5695c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 5705c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Mul = DAG.getNode(ISD::MUL, DL, LHS.getValueType(), LHS, RHS); 571fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands 572fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Overflow occurred iff the high part of the result does not zero/sign-extend 573fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // the low part. 5745c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Overflow; 5755c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner if (N->getOpcode() == ISD::UMULO) { 576fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Unsigned overflow occurred iff the high part is non-zero. 5775c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner SDValue Hi = DAG.getNode(ISD::SRL, DL, Mul.getValueType(), Mul, 578fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands DAG.getIntPtrConstant(SmallVT.getSizeInBits())); 5795c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner Overflow = DAG.getSetCC(DL, N->getValueType(1), Hi, 5805c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner DAG.getConstant(0, Hi.getValueType()), ISD::SETNE); 5815c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } else { 582fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands // Signed overflow occurred iff the high part does not sign extend the low. 583fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands SDValue SExt = DAG.getNode(ISD::SIGN_EXTEND_INREG, DL, Mul.getValueType(), 584fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Mul, DAG.getValueType(SmallVT)); 585fbd53f79f5d475d103fba9303a4aa7e88567dd1aDuncan Sands Overflow = DAG.getSetCC(DL, N->getValueType(1), SExt, Mul, ISD::SETNE); 5865c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner } 5875c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 5885c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner // Use the calculated overflow everywhere. 5895c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner ReplaceValueWith(SDValue(N, 1), Overflow); 5905c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner return Mul; 5915c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner} 5925c3d4f0fc90c86a6c4ee9871835d70c9ff3833d5Chris Lattner 593ab0c578bfd1380326830180a9209df6c5be58887Duncan SandsSDValue DAGTypeLegalizer::PromoteIntRes_UDIV(SDNode *N) { 594ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands // Zero extend the input. 595ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue LHS = ZExtPromotedInteger(N->getOperand(0)); 596ab0c578bfd1380326830180a9209df6c5be58887Duncan Sands SDValue RHS = ZExtPromotedInteger(N->getOperand(1)); 597786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(N->getOpcode(), N->getDebugLoc(), 598786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHS.getValueType(), LHS, RHS); 5998ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling} 6008ac0d4b4fb10406278cd600214cd3ee6d76620cdBill Wendling 601475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_UNDEF(SDNode *N) { 60253f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng return DAG.getUNDEF(TLI.getTypeToTransformTo(*DAG.getContext(), 60353f6ed9560aa4586ba217fbf94acbfada52f561fEvan Cheng N->getValueType(0))); 60469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 60569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 606475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntRes_VAARG(SDNode *N) { 607475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Chain = N->getOperand(0); // Get the chain. 608475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getOperand(1); // Get the pointer. 609e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 610786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 61169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 61223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT RegVT = TLI.getRegisterType(*DAG.getContext(), VT); 61323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson unsigned NumRegs = TLI.getNumRegisters(*DAG.getContext(), VT); 614d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // The argument is passed as NumRegs registers of type RegVT. 615d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 616d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands SmallVector<SDValue, 8> Parts(NumRegs); 617d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 0; i < NumRegs; ++i) { 618cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola Parts[i] = DAG.getVAArg(RegVT, dl, Chain, Ptr, N->getOperand(2), 619cbeeae23c31d32b833c9c7c3e8984e4cbcf22f45Rafael Espindola N->getConstantOperandVal(3)); 620d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands Chain = Parts[i].getValue(1); 621d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 62269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 623d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Handle endianness of the load. 624d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands if (TLI.isBigEndian()) 625d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands std::reverse(Parts.begin(), Parts.end()); 62669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 627d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Assemble the parts in the promoted type. 62823b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 629786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Res = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[0]); 630d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands for (unsigned i = 1; i < NumRegs; ++i) { 631786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Part = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, Parts[i]); 632d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Shift it to the right position and "or" it in. 633786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Part = DAG.getNode(ISD::SHL, dl, NVT, Part, 634d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands DAG.getConstant(i * RegVT.getSizeInBits(), 63592abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 636786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Res = DAG.getNode(ISD::OR, dl, NVT, Res, Part); 637d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands } 63869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 639d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands // Modified the chain result - switch anything that used the old chain to 640bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // use the new one. 641d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands ReplaceValueWith(SDValue(N, 1), Chain); 642d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands 643d821726a91000c1b2de7ca8aafdc27b1a311741bDuncan Sands return Res; 64469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 64569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 646bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 647bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands// Integer Operand Promotion 648bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands//===----------------------------------------------------------------------===// 6497fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 650bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// PromoteIntegerOperand - This method is called when the specified operand of 651bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// the specified node is found to need promotion. At this point, all of the 652bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// result types of the node are known to be legal, but other operands of the 653bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands/// node may need promotion or expansion as well as the specified one. 654bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sandsbool DAGTypeLegalizer::PromoteIntegerOperand(SDNode *N, unsigned OpNo) { 655d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Promote integer operand: "; N->dump(&DAG); dbgs() << "\n"); 656475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 6577fc8ab81f5f46dcba0f76b1c546a1d11ccbebe26Duncan Sands 658f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 659bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 66069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 661bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 662bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 663bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #ifndef NDEBUG 664d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "PromoteIntegerOperand Op #" << OpNo << ": "; 665d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 666bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands #endif 667c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to promote this operator's operand!"); 668bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 669bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ANY_EXTEND: Res = PromoteIntOp_ANY_EXTEND(N); break; 670bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = PromoteIntOp_BITCAST(N); break; 671bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BR_CC: Res = PromoteIntOp_BR_CC(N, OpNo); break; 672bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BRCOND: Res = PromoteIntOp_BRCOND(N, OpNo); break; 673bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_PAIR: Res = PromoteIntOp_BUILD_PAIR(N); break; 674bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::BUILD_VECTOR: Res = PromoteIntOp_BUILD_VECTOR(N); break; 675bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::CONVERT_RNDSAT: 676bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_CONVERT_RNDSAT(N); break; 677bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: 678bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta Res = PromoteIntOp_INSERT_VECTOR_ELT(N, OpNo);break; 679bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::MEMBARRIER: Res = PromoteIntOp_MEMBARRIER(N); break; 680aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang case ISD::SCALAR_TO_VECTOR: 681aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang Res = PromoteIntOp_SCALAR_TO_VECTOR(N); break; 682bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT: Res = PromoteIntOp_SELECT(N, OpNo); break; 683bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SELECT_CC: Res = PromoteIntOp_SELECT_CC(N, OpNo); break; 684bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SETCC: Res = PromoteIntOp_SETCC(N, OpNo); break; 685bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SIGN_EXTEND: Res = PromoteIntOp_SIGN_EXTEND(N); break; 686bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SINT_TO_FP: Res = PromoteIntOp_SINT_TO_FP(N); break; 687bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::STORE: Res = PromoteIntOp_STORE(cast<StoreSDNode>(N), 688bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta OpNo); break; 689bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::TRUNCATE: Res = PromoteIntOp_TRUNCATE(N); break; 690927411b7ce0b7852fe4f392d8cd4faaa3881f852Anton Korobeynikov case ISD::FP16_TO_FP32: 691bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::UINT_TO_FP: Res = PromoteIntOp_UINT_TO_FP(N); break; 692bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::ZERO_EXTEND: Res = PromoteIntOp_ZERO_EXTEND(N); break; 69355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 69455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 69555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 69655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 69755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 69855467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTR: Res = PromoteIntOp_Shift(N); break; 699bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta } 7009fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands 701bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // If the result is null, the sub-method took care of registering results etc. 7029fbc7e2e7a765298fb4326885b407e0962f7ab62Duncan Sands if (!Res.getNode()) return false; 70347d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 70447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 70547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 70647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 707bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return true; 708bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 709bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 710bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands "Invalid operand expansion"); 711bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 712475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 713bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands return false; 71469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 71569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 71669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// PromoteSetCCOperands - Promote the operands of a comparison. This code is 71769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// shared among BR_CC, SELECT_CC, and SETCC handlers. 718475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::PromoteSetCCOperands(SDValue &NewLHS,SDValue &NewRHS, 71969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands ISD::CondCode CCCode) { 720cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // We have to insert explicit sign or zero extends. Note that we could 721cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // insert sign extends for ALL conditions, but zero extend is cheaper on 722cff50d9e20d7bbc3acf4845fe826bfb3095126c4Duncan Sands // many machines (an AND instead of two shifts), so prefer it. 72369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands switch (CCCode) { 724c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer comparison!"); 72569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETEQ: 72669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETNE: 72769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGE: 72869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETUGT: 72969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULE: 73069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETULT: 73169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // ALL of these operations will work if we either sign or zero extend 73269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // the operands (including the unsigned comparisons!). Zero extend is 73369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // usually a simpler/cheaper operation, so prefer it. 734c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = ZExtPromotedInteger(NewLHS); 735c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = ZExtPromotedInteger(NewRHS); 73611ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 73769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGE: 73869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETGT: 73969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLT: 74069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::SETLE: 741c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewLHS = SExtPromotedInteger(NewLHS); 742c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands NewRHS = SExtPromotedInteger(NewRHS); 74311ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands break; 74469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 74569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 74669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 747475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ANY_EXTEND(SDNode *N) { 748475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 749786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::ANY_EXTEND, N->getDebugLoc(), N->getValueType(0), Op); 750bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 75169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 752bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley PeckSDValue DAGTypeLegalizer::PromoteIntOp_BITCAST(SDNode *N) { 75327759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // This should only occur in unusual situations like bitcasting to an 75427759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman // x86_fp80, so just turn it into a store+load 75527759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman return CreateStackStoreLoad(N->getOperand(0), N->getValueType(0)); 75627759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman} 75727759f41ca1c930e2860275c9ba2567a5890d7d2Eli Friedman 758475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo) { 759bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 2 && "Don't know how to promote this operand!"); 76069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 761475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(2); 762475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(3); 763bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(1))->get()); 76469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 765bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0), CC (#1) and basic block destination (Op#4) are always 766bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // legal types. 767027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 768027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), LHS, RHS, N->getOperand(4)), 769027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 770bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 771bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 772475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo) { 773bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 1 && "only know how to promote condition"); 774bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 775b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 776825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson EVT SVT = TLI.getSetCCResultType(MVT::Other); 777b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(1), SVT); 778bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 779bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The chain (Op#0) and basic block destination (Op#2) are always legal types. 780027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Cond, 781027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 0); 782bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 783bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 784475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_PAIR(SDNode *N) { 785bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Since the result type is legal, the operands must promote to it. 786e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT OVT = N->getOperand(0).getValueType(); 787c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Lo = ZExtPromotedInteger(N->getOperand(0)); 788475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Hi = GetPromotedInteger(N->getOperand(1)); 789bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(Lo.getValueType() == N->getValueType(0) && "Operand over promoted?"); 790786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 791bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 792786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, N->getValueType(0), Hi, 79392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(OVT.getSizeInBits(), TLI.getPointerTy())); 794786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::OR, dl, N->getValueType(0), Lo, Hi); 79569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 79669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 797475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_BUILD_VECTOR(SDNode *N) { 79869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // The vector type is legal but the element type is not. This implies 79969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // that the vector is a power-of-two in length and that the element 80069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // type does not have a strange size (eg: it is not i1). 801e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VecVT = N->getValueType(0); 80269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands unsigned NumElts = VecVT.getVectorNumElements(); 80369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(!(NumElts & 1) && "Legal vector of one illegal element?"); 80469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 805b1303d05a89972195de023fda432cc621375a27cBob Wilson // Promote the inserted value. The type does not need to match the 806b1303d05a89972195de023fda432cc621375a27cBob Wilson // vector element type. Check that any extra bits introduced will be 807b1303d05a89972195de023fda432cc621375a27cBob Wilson // truncated away. 808b1303d05a89972195de023fda432cc621375a27cBob Wilson assert(N->getOperand(0).getValueType().getSizeInBits() >= 809b1303d05a89972195de023fda432cc621375a27cBob Wilson N->getValueType(0).getVectorElementType().getSizeInBits() && 810b1303d05a89972195de023fda432cc621375a27cBob Wilson "Type of inserted value narrower than vector element type!"); 81169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 812b1303d05a89972195de023fda432cc621375a27cBob Wilson SmallVector<SDValue, 16> NewOps; 813c885165e664f3b465403e1b6ce57ba63f57c5f0cBob Wilson for (unsigned i = 0; i < NumElts; ++i) 814b1303d05a89972195de023fda432cc621375a27cBob Wilson NewOps.push_back(GetPromotedInteger(N->getOperand(i))); 81569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 816027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, &NewOps[0], NumElts), 0); 81769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 81869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 81928088d3c049017a131aa7b07201c6e19c0227cefMon P WangSDValue DAGTypeLegalizer::PromoteIntOp_CONVERT_RNDSAT(SDNode *N) { 82028088d3c049017a131aa7b07201c6e19c0227cefMon P Wang ISD::CvtCode CvtCode = cast<CvtRndSatSDNode>(N)->getCvtCode(); 82128088d3c049017a131aa7b07201c6e19c0227cefMon P Wang assert ((CvtCode == ISD::CVT_SS || CvtCode == ISD::CVT_SU || 82228088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_US || CvtCode == ISD::CVT_UU || 82328088d3c049017a131aa7b07201c6e19c0227cefMon P Wang CvtCode == ISD::CVT_FS || CvtCode == ISD::CVT_FU) && 82428088d3c049017a131aa7b07201c6e19c0227cefMon P Wang "can only promote integer arguments"); 82528088d3c049017a131aa7b07201c6e19c0227cefMon P Wang SDValue InOp = GetPromotedInteger(N->getOperand(0)); 826c460ae90019ddb19d4c07b2cd2fbaecfa7adf67dDale Johannesen return DAG.getConvertRndSat(N->getValueType(0), N->getDebugLoc(), InOp, 82728088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(1), N->getOperand(2), 82828088d3c049017a131aa7b07201c6e19c0227cefMon P Wang N->getOperand(3), N->getOperand(4), CvtCode); 82928088d3c049017a131aa7b07201c6e19c0227cefMon P Wang} 83028088d3c049017a131aa7b07201c6e19c0227cefMon P Wang 831475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, 832475871a144eb604ddaf37503397ba0941442e5fbDan Gohman unsigned OpNo) { 83369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands if (OpNo == 1) { 83469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the inserted value. This is valid because the type does not 83569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // have to match the vector element type. 83669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 83769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Check that any extra bits introduced will be truncated away. 83869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(N->getOperand(1).getValueType().getSizeInBits() >= 83969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands N->getValueType(0).getVectorElementType().getSizeInBits() && 84069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands "Type of inserted value narrower than vector element type!"); 841027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 84269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetPromotedInteger(N->getOperand(1)), 843027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(2)), 844027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman 0); 84569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 84669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 84769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands assert(OpNo == 2 && "Different operand and result vector types?"); 84869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 84969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // Promote the index. 850c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands SDValue Idx = ZExtPromotedInteger(N->getOperand(2)); 851027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 852027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), Idx), 0); 85369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 85469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 855475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_MEMBARRIER(SDNode *N) { 856475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewOps[6]; 8574be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 85869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands NewOps[0] = N->getOperand(0); 85969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands for (unsigned i = 1; i < array_lengthof(NewOps); ++i) { 860475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Flag = GetPromotedInteger(N->getOperand(i)); 861825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson NewOps[i] = DAG.getZeroExtendInReg(Flag, dl, MVT::i1); 86269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands } 863027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewOps, array_lengthof(NewOps)), 0); 86469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands} 86569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 866aa9df0b0c3cef33514095bde2eedead986677955Mon P WangSDValue DAGTypeLegalizer::PromoteIntOp_SCALAR_TO_VECTOR(SDNode *N) { 867b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // Integer SCALAR_TO_VECTOR operands are implicitly truncated, so just promote 868b10b5ac8d9da43ca2db61401a20af6b676c98438Duncan Sands // the operand in place. 869027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 870027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman GetPromotedInteger(N->getOperand(0))), 0); 871aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang} 872aa9df0b0c3cef33514095bde2eedead986677955Mon P Wang 873475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT(SDNode *N, unsigned OpNo) { 874bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Only know how to promote condition"); 8757e4982287591945c4e42ba8470a978e629789c76Duncan Sands 876b6e223a9e806921183da972253c49082a2e07944Duncan Sands // Promote all the way up to the canonical SetCC type. 877e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SVT = TLI.getSetCCResultType(N->getOperand(1).getValueType()); 878b6e223a9e806921183da972253c49082a2e07944Duncan Sands SDValue Cond = PromoteTargetBoolean(N->getOperand(0), SVT); 879bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 880027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, Cond, 881027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(1), N->getOperand(2)), 0); 882bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 883bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 884475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo) { 885bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 886bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 887475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 888475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 889bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(4))->get()); 890bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 891bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#4) and the possible return values (#2 and #3) have legal types. 892027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2), 893027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(3), N->getOperand(4)), 0); 894bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 895bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 896475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SETCC(SDNode *N, unsigned OpNo) { 897bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(OpNo == 0 && "Don't know how to promote this operand!"); 898bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 899475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHS = N->getOperand(0); 900475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue RHS = N->getOperand(1); 901bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands PromoteSetCCOperands(LHS, RHS, cast<CondCodeSDNode>(N->getOperand(2))->get()); 902bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 903bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // The CC (#2) is always legal. 904027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, LHS, RHS, N->getOperand(2)), 0); 905bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 906bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 90755467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::PromoteIntOp_Shift(SDNode *N) { 908027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 909027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(1))), 0); 91055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 91155467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 912475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_SIGN_EXTEND(SDNode *N) { 913475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 914786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 915786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 916786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), 917bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands Op, DAG.getValueType(N->getOperand(0).getValueType())); 918bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 919bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 920c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_SINT_TO_FP(SDNode *N) { 921027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 922027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman SExtPromotedInteger(N->getOperand(0))), 0); 923c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 924c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 925475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo){ 926bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 927475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(), Ptr = N->getBasePtr(); 928bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands unsigned Alignment = N->getAlignment(); 929bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands bool isVolatile = N->isVolatile(); 9301e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 931786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 932bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 933475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Val = GetPromotedInteger(N->getValue()); // Get promoted value. 934bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 935bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands // Truncate the value and store the result. 936ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Val, Ptr, N->getPointerInfo(), 937ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getMemoryVT(), 9381e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 939bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 940bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 941475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_TRUNCATE(SDNode *N) { 942475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 943786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), Op); 944bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 945bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 946c08468774b65dc288c44076d428f4beddabe58e2Duncan SandsSDValue DAGTypeLegalizer::PromoteIntOp_UINT_TO_FP(SDNode *N) { 947027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, 948027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman ZExtPromotedInteger(N->getOperand(0))), 0); 949c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands} 950c08468774b65dc288c44076d428f4beddabe58e2Duncan Sands 951475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::PromoteIntOp_ZERO_EXTEND(SDNode *N) { 9524be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen DebugLoc dl = N->getDebugLoc(); 953475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = GetPromotedInteger(N->getOperand(0)); 9544be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen Op = DAG.getNode(ISD::ANY_EXTEND, dl, N->getValueType(0), Op); 9554be0bdf7c1162824927dd3de89e016ae4934d0d6Dale Johannesen return DAG.getZeroExtendInReg(Op, dl, N->getOperand(0).getValueType()); 956bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands} 957bf304c20651b80309af4c0fb3a14c0d73eaa984fDuncan Sands 95869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 95969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 96069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Result Expansion 96169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands//===----------------------------------------------------------------------===// 96269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 96369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands/// ExpandIntegerResult - This method is called when the specified result of the 964cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// specified node is found to need expansion. At this point, the node may also 965cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// have invalid operands or may have other results that need promotion, we just 966cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner/// know that (at least) one result needs expansion. 96769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntegerResult(SDNode *N, unsigned ResNo) { 968d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer result: "; N->dump(&DAG); dbgs() << "\n"); 969475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 970475871a144eb604ddaf37503397ba0941442e5fbDan Gohman Lo = Hi = SDValue(); 971cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 972cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // See if the target wants to custom expand this node. 973f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getValueType(ResNo), true)) 9741607f05cb7d77d01ce521a30232faa389dbed4e2Duncan Sands return; 975cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 976cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (N->getOpcode()) { 977cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner default: 978cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#ifndef NDEBUG 979d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerResult #" << ResNo << ": "; 980d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 981cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner#endif 982c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand the result of this operator!"); 98369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 98478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::MERGE_VALUES: SplitRes_MERGE_VALUES(N, Lo, Hi); break; 98578cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT: SplitRes_SELECT(N, Lo, Hi); break; 98678cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::SELECT_CC: SplitRes_SELECT_CC(N, Lo, Hi); break; 98778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::UNDEF: SplitRes_UNDEF(N, Lo, Hi); break; 98878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 989bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: ExpandRes_BITCAST(N, Lo, Hi); break; 99078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::BUILD_PAIR: ExpandRes_BUILD_PAIR(N, Lo, Hi); break; 9914a307ecce68f90e0eebf1ded52b947816cdc2304Duncan Sands case ISD::EXTRACT_ELEMENT: ExpandRes_EXTRACT_ELEMENT(N, Lo, Hi); break; 99278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands case ISD::EXTRACT_VECTOR_ELT: ExpandRes_EXTRACT_VECTOR_ELT(N, Lo, Hi); break; 99321c2972f7d24680f6475877a3398b7f8cf515b33Duncan Sands case ISD::VAARG: ExpandRes_VAARG(N, Lo, Hi); break; 99478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 99569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::ANY_EXTEND: ExpandIntRes_ANY_EXTEND(N, Lo, Hi); break; 99695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands case ISD::AssertSext: ExpandIntRes_AssertSext(N, Lo, Hi); break; 99769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::AssertZext: ExpandIntRes_AssertZext(N, Lo, Hi); break; 99805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::BSWAP: ExpandIntRes_BSWAP(N, Lo, Hi); break; 99905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::Constant: ExpandIntRes_Constant(N, Lo, Hi); break; 100005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTLZ: ExpandIntRes_CTLZ(N, Lo, Hi); break; 100105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTPOP: ExpandIntRes_CTPOP(N, Lo, Hi); break; 100205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::CTTZ: ExpandIntRes_CTTZ(N, Lo, Hi); break; 100369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_SINT: ExpandIntRes_FP_TO_SINT(N, Lo, Hi); break; 100469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::FP_TO_UINT: ExpandIntRes_FP_TO_UINT(N, Lo, Hi); break; 100569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands case ISD::LOAD: ExpandIntRes_LOAD(cast<LoadSDNode>(N), Lo, Hi); break; 100605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::MUL: ExpandIntRes_MUL(N, Lo, Hi); break; 100705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SDIV: ExpandIntRes_SDIV(N, Lo, Hi); break; 100805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND: ExpandIntRes_SIGN_EXTEND(N, Lo, Hi); break; 100905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SIGN_EXTEND_INREG: ExpandIntRes_SIGN_EXTEND_INREG(N, Lo, Hi); break; 101005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SREM: ExpandIntRes_SREM(N, Lo, Hi); break; 101105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::TRUNCATE: ExpandIntRes_TRUNCATE(N, Lo, Hi); break; 101205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UDIV: ExpandIntRes_UDIV(N, Lo, Hi); break; 101305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::UREM: ExpandIntRes_UREM(N, Lo, Hi); break; 101405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::ZERO_EXTEND: ExpandIntRes_ZERO_EXTEND(N, Lo, Hi); break; 101569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 10168d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_ADD: 10178d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_SUB: 10188d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_AND: 10198d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_OR: 10208d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_XOR: 10218d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_NAND: 10228d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MIN: 10238d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_MAX: 10248d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMIN: 10258d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_LOAD_UMAX: 10268d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher case ISD::ATOMIC_SWAP: { 10278d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher std::pair<SDValue, SDValue> Tmp = ExpandAtomic(N); 10288d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher SplitInteger(Tmp.first, Lo, Hi); 10298d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher ReplaceValueWith(SDValue(N, 1), Tmp.second); 10308d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher break; 10318d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher } 10328d93d19076fb6a67eeb63cb0ba79d00c3aa8478aEric Christopher 1033cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::AND: 1034cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::OR: 103505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::XOR: ExpandIntRes_Logical(N, Lo, Hi); break; 103605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1037cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADD: 103805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUB: ExpandIntRes_ADDSUB(N, Lo, Hi); break; 103905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1040cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDC: 104105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBC: ExpandIntRes_ADDSUBC(N, Lo, Hi); break; 104205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1043cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::ADDE: 104405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SUBE: ExpandIntRes_ADDSUBE(N, Lo, Hi); break; 104505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1046cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SHL: 1047cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SRA: 104805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: ExpandIntRes_Shift(N, Lo, Hi); break; 1049268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1050268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SADDO: 1051268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::SSUBO: ExpandIntRes_SADDSUBO(N, Lo, Hi); break; 1052268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::UADDO: 1053268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman case ISD::USUBO: ExpandIntRes_UADDSUBO(N, Lo, Hi); break; 1054cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1055d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 1056cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If Lo/Hi is null, the sub-method took care of registering results etc. 1057ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (Lo.getNode()) 1058475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SetExpandedInteger(SDValue(N, ResNo), Lo, Hi); 1059cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1060cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 106193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher/// Lower an atomic node to the appropriate builtin call. 106293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopherstd::pair <SDValue, SDValue> DAGTypeLegalizer::ExpandAtomic(SDNode *Node) { 106393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher unsigned Opc = Node->getOpcode(); 106493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher MVT VT = cast<AtomicSDNode>(Node)->getMemoryVT().getSimpleVT(); 106593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher RTLIB::Libcall LC; 106693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 106793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (Opc) { 106893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: 106993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher llvm_unreachable("Unhandled atomic intrinsic Expand!"); 107093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 107193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_SWAP: 107293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 107393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 107493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_1; break; 107593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_2; break; 107693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_4; break; 107793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_LOCK_TEST_AND_SET_8; break; 107893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 107993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 108093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_CMP_SWAP: 108193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 108293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 108393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_1; break; 108493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_2; break; 108593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_4; break; 108693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_VAL_COMPARE_AND_SWAP_8; break; 108793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 108893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 108993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_ADD: 109093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 109193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 109293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_ADD_1; break; 109393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_ADD_2; break; 109493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_ADD_4; break; 109593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_ADD_8; break; 109693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 109793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 109893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_SUB: 109993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 110093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 110193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_SUB_1; break; 110293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_SUB_2; break; 110393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_SUB_4; break; 110493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_SUB_8; break; 110593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 110693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 110793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_AND: 110893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 110993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 111093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_AND_1; break; 111193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_AND_2; break; 111293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_AND_4; break; 111393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_AND_8; break; 111493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 111593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 111693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_OR: 111793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 111893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 111993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_OR_1; break; 112093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_OR_2; break; 112193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_OR_4; break; 112293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_OR_8; break; 112393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 112493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 112593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_XOR: 112693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 112793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 112893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_XOR_1; break; 112993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_XOR_2; break; 113093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_XOR_4; break; 113193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_XOR_8; break; 113293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 113393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 113493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case ISD::ATOMIC_LOAD_NAND: 113593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher switch (VT.SimpleTy) { 113693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher default: llvm_unreachable("Unexpected value type for atomic!"); 113793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i8: LC = RTLIB::SYNC_FETCH_AND_NAND_1; break; 113893c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i16: LC = RTLIB::SYNC_FETCH_AND_NAND_2; break; 113993c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i32: LC = RTLIB::SYNC_FETCH_AND_NAND_4; break; 114093c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher case MVT::i64: LC = RTLIB::SYNC_FETCH_AND_NAND_8; break; 114193c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 114293c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher break; 114393c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher } 114493c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 114593c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher return ExpandChainLibCall(LC, Node, false); 114693c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher} 114793c70426f581859f197df1b05fdb1b3664d361a0Eric Christopher 114805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftByConstant - N is a shift by a value that needs to be expanded, 114905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// and the shift amount is a constant 'Amt'. Expand the operation. 115005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandShiftByConstant(SDNode *N, unsigned Amt, 1151475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1152e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DebugLoc DL = N->getDebugLoc(); 115305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the incoming operand to be shifted, so that we have its parts 1154475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 115505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1156cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1157e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = InL.getValueType(); 115805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned VTBits = N->getValueType(0).getSizeInBits(); 115905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 1160e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = N->getOperand(1).getValueType(); 1161cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 116205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SHL) { 116305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 116405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = Hi = DAG.getConstant(0, NVT); 116505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 116605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 1167e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SHL, DL, 1168915eeb488786379250808d47668c43e010efe566Chris Lattner NVT, InL, DAG.getConstant(Amt-NVTBits, ShTy)); 116905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 117005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 117105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = InL; 1172104de6cf7b80ec5e9beb502a069f376810a0a1e3Richard Osborne } else if (Amt == 1 && 1173f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(ISD::ADDC, 117454e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher TLI.getTypeToExpandTo(*DAG.getContext(), NVT))) { 117505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Emit this X << 1 as X+X. 1176f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 1177475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { InL, InL }; 1178e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::ADDC, DL, VTList, LoOps, 2); 1179475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { InH, InH, Lo.getValue(1) }; 1180e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::ADDE, DL, VTList, HiOps, 3); 118105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1182e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SHL, DL, NVT, InL, DAG.getConstant(Amt, ShTy)); 1183e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::OR, DL, NVT, 1184e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 118505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1186e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 118705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 118805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 118905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1190cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1191cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 119205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::SRL) { 119305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 119405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); 119505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 119605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1197e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRL, DL, 1198786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, InH, DAG.getConstant(Amt-NVTBits,ShTy)); 119905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 120005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 120105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 120205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 120305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1204e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1205e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 120605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1207e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 120805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1209e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRL, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 121005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 121105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return; 1212cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1213d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 121405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 121505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Amt > VTBits) { 1216e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 121705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 121805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt > NVTBits) { 1219e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::SRA, DL, NVT, InH, 122005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt-NVTBits, ShTy)); 1221e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 122205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 122305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else if (Amt == NVTBits) { 122405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = InH; 1225e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, 122605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1227d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } else { 1228e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Lo = DAG.getNode(ISD::OR, DL, NVT, 1229e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SRL, DL, NVT, InL, 123005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Amt, ShTy)), 1231e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner DAG.getNode(ISD::SHL, DL, NVT, InH, 123205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-Amt, ShTy))); 1233e075118489baf15a7cea2e7f155b4799b93d6d02Chris Lattner Hi = DAG.getNode(ISD::SRA, DL, NVT, InH, DAG.getConstant(Amt, ShTy)); 1234d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands } 1235d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands} 1236d885dbdf9eb7a51ebb9a15a85921f27d8219997cDuncan Sands 123705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandShiftWithKnownAmountBit - Try to determine whether we can simplify 123805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// this shift based on knowledge of the high bit of the shift amount. If we 123905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// can tell this, we know that it is >= 32 or < 32, without knowing the actual 124005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// shift amount. 124105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer:: 1242475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 1243475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt = N->getOperand(1); 124423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1245e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 12465b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned ShBits = ShTy.getScalarType().getSizeInBits(); 12475b870aff81da0c07413f0241087bb3722954b83dDan Gohman unsigned NVTBits = NVT.getScalarType().getSizeInBits(); 124805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(isPowerOf2_32(NVTBits) && 124905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Expanded integer type size not a power of two!"); 1250786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1251cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 125205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt HighBitMask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); 125305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt KnownZero, KnownOne; 125405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.ComputeMaskedBits(N->getOperand(1), HighBitMask, KnownZero, KnownOne); 1255cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 125605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we don't know anything about the high bits, exit. 125705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (((KnownZero|KnownOne) & HighBitMask) == 0) 125805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 1259cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 126005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get the incoming operand to be shifted. 1261475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 126205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 1263be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands 126405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that any of the high bits of the shift amount are one, then we 126505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 126605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (KnownOne.intersects(HighBitMask)) { 126705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Mask out the high bit, which we know is set. 1268786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Amt = DAG.getNode(ISD::AND, dl, ShTy, Amt, 126905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(~HighBitMask, ShTy)); 127005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 127105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1272c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 127305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: 127405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getConstant(0, NVT); // Low part is zero. 1275786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); // High part from Lo part. 127605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 127705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 127805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // Hi part is zero. 1279786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); // Lo part from Hi part. 128005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 128105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: 1282786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign extend high part. 128305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits-1, ShTy)); 1284786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); // Lo part from Hi part. 128505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 128605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 128705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 128805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 128928dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#if 0 129028dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman // FIXME: This code is broken for shifts with a zero amount! 129105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If we know that all of the high bits of the shift amount are zero, then we 129205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // can do this as a couple of simple shifts. 129305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if ((KnownZero & HighBitMask) == HighBitMask) { 129405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Compute 32-amt. 1295475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Amt2 = DAG.getNode(ISD::SUB, ShTy, 129605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVTBits, ShTy), 129705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Amt); 129805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned Op1, Op2; 129905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands switch (N->getOpcode()) { 1300c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 130105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SHL: Op1 = ISD::SHL; Op2 = ISD::SRL; break; 130205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRL: 130305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands case ISD::SRA: Op1 = ISD::SRL; Op2 = ISD::SHL; break; 130405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 130505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 130605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Lo = DAG.getNode(N->getOpcode(), NVT, InL, Amt); 130705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getNode(ISD::OR, NVT, 130805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op1, NVT, InH, Amt), 130905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getNode(Op2, NVT, InL, Amt2)); 131005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 131105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 131228dc98f7521933872b93156e3ebf5c9f8327b2b3Eli Friedman#endif 131305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 131405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 131505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 131605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 13176fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// ExpandShiftWithUnknownAmountBit - Fully general expansion of integer shift 13186fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng/// of any size. 13196fb2168aaed06e4685d064b6f63dc4c668b42728Evan Chengbool DAGTypeLegalizer:: 13206fb2168aaed06e4685d064b6f63dc4c668b42728Evan ChengExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi) { 13216fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Amt = N->getOperand(1); 132223b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1323e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT ShTy = Amt.getValueType(); 13246fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng unsigned NVTBits = NVT.getSizeInBits(); 13256fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng assert(isPowerOf2_32(NVTBits) && 13266fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng "Expanded integer type size not a power of two!"); 13276fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DebugLoc dl = N->getDebugLoc(); 13286fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13296fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng // Get the incoming operand to be shifted. 13306fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue InL, InH; 13316fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng GetExpandedInteger(N->getOperand(0), InL, InH); 13326fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13336fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue NVBitsNode = DAG.getConstant(NVTBits, ShTy); 13349993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtExcess = DAG.getNode(ISD::SUB, dl, ShTy, Amt, NVBitsNode); 13359993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue AmtLack = DAG.getNode(ISD::SUB, dl, ShTy, NVBitsNode, Amt); 13369993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue isShort = DAG.getSetCC(dl, TLI.getSetCCResultType(ShTy), 13379993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Amt, NVBitsNode, ISD::SETULT); 13386fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13399993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands SDValue LoS, HiS, LoL, HiL; 13406fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng switch (N->getOpcode()) { 1341c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown shift"); 13426fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SHL: 13439993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 13449993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::SHL, dl, NVT, InL, Amt); 13459993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::OR, dl, NVT, 13466fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SHL, dl, NVT, InH, Amt), 134736236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 134836236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 13499993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, AmtLack)); 13509993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 13519993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 13529993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getConstant(0, NVT); // Lo part is zero. 13539993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SHL, dl, NVT, InL, AmtExcess); // Hi from Lo part. 13546fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13559993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 13569993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 13576fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 13586fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRL: 13599993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 13609993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRL, dl, NVT, InH, Amt); 13619993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 13629993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 136336236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 136436236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 13659993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 13669993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 13679993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 13689993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getConstant(0, NVT); // Hi part is zero. 13699993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRL, dl, NVT, InH, AmtExcess); // Lo from Hi part. 13709993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 13719993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 13729993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 13736fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 13746fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng case ISD::SRA: 13759993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Short: ShAmt < NVTBits 13769993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiS = DAG.getNode(ISD::SRA, dl, NVT, InH, Amt); 13779993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoS = DAG.getNode(ISD::OR, dl, NVT, 13786fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng DAG.getNode(ISD::SRL, dl, NVT, InL, Amt), 137936236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // FIXME: If Amt is zero, the following shift generates an undefined result 138036236b76a45be2a50315d1926c49bd3c63786b49Duncan Sands // on some architectures. 13819993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getNode(ISD::SHL, dl, NVT, InH, AmtLack)); 13829993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands 13839993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands // Long: ShAmt >= NVTBits 13849993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands HiL = DAG.getNode(ISD::SRA, dl, NVT, InH, // Sign of Hi part. 13859993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands DAG.getConstant(NVTBits-1, ShTy)); 13869993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands LoL = DAG.getNode(ISD::SRA, dl, NVT, InH, AmtExcess); // Lo from Hi part. 13876fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13889993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Lo = DAG.getNode(ISD::SELECT, dl, NVT, isShort, LoS, LoL); 13899993b88f06fd54c0be31d35f0970ada70a4c0439Duncan Sands Hi = DAG.getNode(ISD::SELECT, dl, NVT, isShort, HiS, HiL); 13906fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return true; 13916fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 13926fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 13936fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return false; 13946fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng} 13956fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng 139605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUB(SDNode *N, 1397475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1398786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 139905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1400475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 140105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 140205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 140329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 1404e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = LHSL.getValueType(); 1405475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1406475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 140705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 140829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // Do not generate ADDC/ADDE or SUBC/SUBE if the target does not support 140929a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // them. TODO: Teach operation legalization how to expand unsupported 141029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // ADDC/ADDE/SUBC/SUBE. The problem is that these operations generate 1411f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner // a carry of type MVT::Glue, but there doesn't seem to be any way to 141229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands // generate a value of this type in the expanded code sequence. 141329a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands bool hasCarry = 1414f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman TLI.isOperationLegalOrCustom(N->getOpcode() == ISD::ADD ? 1415f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman ISD::ADDC : ISD::SUBC, 1416bc7a902713c4e3f13a93c383e647d2a18712f447Dan Gohman TLI.getTypeToExpandTo(*DAG.getContext(), NVT)); 141729a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands 141829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (hasCarry) { 1419f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(NVT, MVT::Glue); 142029a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands if (N->getOpcode() == ISD::ADD) { 1421786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 142229a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1423786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 142429a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } else { 1425786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 142629a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands HiOps[2] = Lo.getValue(1); 1427786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 142829a2822f287275a0d4df49f98104409d8f97c5dfDuncan Sands } 1429c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson return; 14305078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner } 1431c6d160bfa22fcb06c80c4c6cfc10ddbe7d8d28e4Owen Anderson 14325078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner if (N->getOpcode() == ISD::ADD) { 14335078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::ADD, dl, NVT, LoOps, 2); 14345078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, HiOps, 2); 14355078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[0], 14365078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 14375078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry1 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp1, 14385078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 14395078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 14405078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp2 = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, LoOps[1], 14415078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner ISD::SETULT); 14425078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Carry2 = DAG.getNode(ISD::SELECT, dl, NVT, Cmp2, 14435078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), Carry1); 14445078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, Carry2); 144505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 14465078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Lo = DAG.getNode(ISD::SUB, dl, NVT, LoOps, 2); 14475078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, HiOps, 2); 14485078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Cmp = 14495078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getSetCC(dl, TLI.getSetCCResultType(LoOps[0].getValueType()), 14505078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner LoOps[0], LoOps[1], ISD::SETULT); 14515078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner SDValue Borrow = DAG.getNode(ISD::SELECT, dl, NVT, Cmp, 14525078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(1, NVT), 14535078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner DAG.getConstant(0, NVT)); 14545078293cc28dd03236384fa0a3b6c8347e0701fbChris Lattner Hi = DAG.getNode(ISD::SUB, dl, NVT, Hi, Borrow); 145505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 145605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 145705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 145805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBC(SDNode *N, 1459475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 146005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1461475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1462786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 146305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 146405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1465f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1466475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[2] = { LHSL, RHSL }; 1467475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 146805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 146905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (N->getOpcode() == ISD::ADDC) { 1470786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ADDC, dl, VTList, LoOps, 2); 147105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1472786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADDE, dl, VTList, HiOps, 3); 147305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1474786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SUBC, dl, VTList, LoOps, 2); 147505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1476786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SUBE, dl, VTList, HiOps, 3); 147705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 147805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1479874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1480874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1481475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 148205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 148305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 148405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ADDSUBE(SDNode *N, 1485475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 148605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Expand the subcomponents. 1487475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH, RHSL, RHSH; 1488786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 148905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 149005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(1), RHSL, RHSH); 1491f1b4eafbfec976f939ec0ea3e8acf91cef5363e3Chris Lattner SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Glue); 1492475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LoOps[3] = { LHSL, RHSL, N->getOperand(2) }; 1493475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue HiOps[3] = { LHSH, RHSH }; 149405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1495786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, VTList, LoOps, 3); 149605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands HiOps[2] = Lo.getValue(1); 1497786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, VTList, HiOps, 3); 149805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1499874ae251c317788391f9c3f113957802d390a063Dale Johannesen // Legalized the flag result - switch anything that used the old flag to 1500874ae251c317788391f9c3f113957802d390a063Dale Johannesen // use the new one. 1501475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Hi.getValue(1)); 150205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 150305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 150405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ANY_EXTEND(SDNode *N, 1505475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 150623b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 1507786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1508475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 150905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 151005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The low part is any extension of the input (which degenerates to a copy). 1511786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ANY_EXTEND, dl, NVT, Op); 1512e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); // The high part is undefined. 151305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 151405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 151505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 151605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 151705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 1518475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 151905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 152005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 152105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 152205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 152305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 152405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 152505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 152695db39a9de48f69f4d764335b492b83a698c7854Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertSext(SDNode *N, 1527475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1528786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 152995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1530e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1531e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 153295db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned NVTBits = NVT.getSizeInBits(); 153395db39a9de48f69f4d764335b492b83a698c7854Duncan Sands unsigned EVTBits = EVT.getSizeInBits(); 153495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 153595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands if (NVTBits < EVTBits) { 1536786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertSext, dl, NVT, Hi, 15374ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 15384ff28527bb8e5ed4ae4b65f0fa6967eb79a05d4cEvan Cheng EVTBits - NVTBits))); 153995db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } else { 1540786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertSext, dl, NVT, Lo, DAG.getValueType(EVT)); 154195db39a9de48f69f4d764335b492b83a698c7854Duncan Sands // The high part replicates the sign bit of Lo, make it explicit. 1542786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 154392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVTBits-1, TLI.getPointerTy())); 154495db39a9de48f69f4d764335b492b83a698c7854Duncan Sands } 154595db39a9de48f69f4d764335b492b83a698c7854Duncan Sands} 154695db39a9de48f69f4d764335b492b83a698c7854Duncan Sands 154705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_AssertZext(SDNode *N, 1548475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1549786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 155005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1551e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1552e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 155305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NVTBits = NVT.getSizeInBits(); 155405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned EVTBits = EVT.getSizeInBits(); 155505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 155605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (NVTBits < EVTBits) { 1557786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::AssertZext, dl, NVT, Hi, 1558285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 1559285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng EVTBits - NVTBits))); 156005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 1561786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::AssertZext, dl, NVT, Lo, DAG.getValueType(EVT)); 156205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part must be zero, make it explicit. 156305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 156405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 156505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 156605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 156705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_BSWAP(SDNode *N, 1568475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1569786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 157005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Hi, Lo); // Note swapped operands. 1571786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::BSWAP, dl, Lo.getValueType(), Lo); 1572786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::BSWAP, dl, Hi.getValueType(), Hi); 157305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 157405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 157505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Constant(SDNode *N, 1576475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 157723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 157805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned NBitWidth = NVT.getSizeInBits(); 157905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const APInt &Cst = cast<ConstantSDNode>(N)->getAPIntValue(); 158040f8f6264d5af2c38e797e0dc59827cd231e8ff7Jay Foad Lo = DAG.getConstant(Cst.trunc(NBitWidth), NVT); 158105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(Cst.lshr(NBitWidth).trunc(NBitWidth), NVT); 158205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 158305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 158405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTLZ(SDNode *N, 1585475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1586786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 158705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctlz (HiLo) -> Hi != 0 ? ctlz(Hi) : (ctlz(Lo)+32) 158805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1589e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 159005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1591786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Hi, 1592ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 159305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1594786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Lo); 1595786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTLZ, dl, NVT, Hi); 159605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1597786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, HiNotZero, HiLZ, 1598786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, LoLZ, 159905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 160005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 160105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 160205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 160305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTPOP(SDNode *N, 1604475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1605786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 160605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // ctpop(HiLo) -> ctpop(Hi)+ctpop(Lo) 160705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1608e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 1609b300d2aa3ef08b5074449e2c05804717f488f4e4Dale Johannesen Lo = DAG.getNode(ISD::ADD, dl, NVT, DAG.getNode(ISD::CTPOP, dl, NVT, Lo), 1610786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::CTPOP, dl, NVT, Hi)); 161105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 161205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 161305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 161405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_CTTZ(SDNode *N, 1615475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1616786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 161705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // cttz (HiLo) -> Lo != 0 ? cttz(Lo) : (cttz(Hi)+32) 161805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 1619e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT NVT = Lo.getValueType(); 162005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1621786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoNotZero = DAG.getSetCC(dl, TLI.getSetCCResultType(NVT), Lo, 1622ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands DAG.getConstant(0, NVT), ISD::SETNE); 162305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1624786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue LoLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Lo); 1625786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue HiLZ = DAG.getNode(ISD::CTTZ, dl, NVT, Hi); 162605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1627786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SELECT, dl, NVT, LoNotZero, LoLZ, 1628786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::ADD, dl, NVT, HiLZ, 162905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(NVT.getSizeInBits(), NVT))); 163005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); 163105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 163205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 1633475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_SINT(SDNode *N, SDValue &Lo, 1634475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1635c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1636e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1637475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1638b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOSINT(Op.getValueType(), VT); 1639be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-sint conversion!"); 1640c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, true/*irrelevant*/, dl), Lo, Hi); 1641ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1642ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 1643475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::ExpandIntRes_FP_TO_UINT(SDNode *N, SDValue &Lo, 1644475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Hi) { 1645c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1646e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1647475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 1648b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getFPTOUINT(Op.getValueType(), VT); 1649be1ad4de2900451626c8d4ace07b9ea16099ea1dDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); 1650c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, &Op, 1, false/*irrelevant*/, dl), Lo, Hi); 1651ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1652ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 165369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_LOAD(LoadSDNode *N, 1654475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1655ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalLoad(N)) { 1656ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands ExpandRes_NormalLoad(N, Lo, Hi); 165778cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands return; 165878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands } 165978cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 166078cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDLoad(N) && "Indexed load during type legalization!"); 166178cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 1662e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 166323b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1664475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 1665475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 1666cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::LoadExtType ExtType = N->getExtensionType(); 1667cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 1668cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 16691e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 1670786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1671cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 167278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 1673cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 167478cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 16758a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 1676cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1677a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 16781e559443a17d1b335f697551c6263ba60d5dd827David Greene MemVT, isVolatile, isNonTemporal, Alignment); 1679cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1680cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Remember the chain. 1681cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Ch = Lo.getValue(1); 1682cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1683cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExtType == ISD::SEXTLOAD) { 1684cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is obtained by SRA'ing all but one of the bits of the 1685cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // lo part. 168683ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned LoSize = Lo.getValueType().getSizeInBits(); 1687786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 168892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 1689cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (ExtType == ISD::ZEXTLOAD) { 1690cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is just a zero. 1691cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = DAG.getConstant(0, NVT); 1692cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1693cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(ExtType == ISD::EXTLOAD && "Unknown extload!"); 1694cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The high part is undefined. 1695e8d7230f480654cdb8ff1c3d0a38e1e9ab0bd55fDale Johannesen Hi = DAG.getUNDEF(NVT); 1696cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1697cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else if (TLI.isLittleEndian()) { 1698cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 1699ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getLoad(NVT, dl, Ch, Ptr, N->getPointerInfo(), 17001e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1701cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1702cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 170383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 170423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 1705cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1706cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 170783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1708786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 17090bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1710a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, 1711ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), NEVT, 17121e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 17131e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1714cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1715cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1716cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1717825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1718cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1719cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } else { 1720cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Big-endian - high bits are at low addresses. Favor aligned loads at 1721cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the cost of some bit-fiddling. 17228a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT MemVT = N->getMemoryVT(); 17234e918b2c8ca81edd63f6708e08835b2c14648615Dan Gohman unsigned EBytes = MemVT.getStoreSize(); 172483ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 1725cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 1726cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1727cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load both the high bits and maybe some of the low bits. 1728a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Hi = DAG.getExtLoad(ExtType, dl, NVT, Ch, Ptr, N->getPointerInfo(), 17298a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman EVT::getIntegerVT(*DAG.getContext(), 17308a55ce4a392f07ac1f3c183100ac591b7ad7c693Dan Gohman MemVT.getSizeInBits() - ExcessBits), 17311e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 1732cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1733cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 1734786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 17350bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 1736cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Load the rest of the low bits. 1737a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings Lo = DAG.getExtLoad(ISD::ZEXTLOAD, dl, NVT, Ch, Ptr, 1738ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 173923b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 17401e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, 17411e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 1742cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1743cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Build a factor node to remember that this load is independent of the 1744cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // other one. 1745825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson Ch = DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo.getValue(1), 1746cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi.getValue(1)); 1747cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 174883ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands if (ExcessBits < NVT.getSizeInBits()) { 1749cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Transfer low bits from the bottom of Hi to the top of Lo. 1750786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::OR, dl, NVT, Lo, 1751786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DAG.getNode(ISD::SHL, dl, NVT, Hi, 1752cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getConstant(ExcessBits, 175392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy()))); 1754cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Move high bits to the right position in Hi. 17557fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands Hi = DAG.getNode(ExtType == ISD::SEXTLOAD ? ISD::SRA : ISD::SRL, dl, 1756786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NVT, Hi, 175783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 175892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 1759cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1760cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1761cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1762cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Legalized the chain result - switch anything that used the old chain to 1763cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // use the new one. 1764475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 1), Ch); 1765cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1766cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 176769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Logical(SDNode *N, 1768475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1769786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 1770475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 177169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 177269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 1773786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LL, RL); 1774786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(N->getOpcode(), dl, LL.getValueType(), LH, RH); 1775cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 1776cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 177705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_MUL(SDNode *N, 1778475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1779e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 178023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1781c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 178269b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1783f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHS = TLI.isOperationLegalOrCustom(ISD::MULHS, NVT); 1784f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasMULHU = TLI.isOperationLegalOrCustom(ISD::MULHU, NVT); 1785f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasSMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::SMUL_LOHI, NVT); 1786f560ffae1f1f6591859c7b70636a3eca6c03f083Dan Gohman bool HasUMUL_LOHI = TLI.isOperationLegalOrCustom(ISD::UMUL_LOHI, NVT); 1787cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { 1788475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LL, LH, RL, RH; 178969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LL, LH); 179069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(1), RL, RH); 179183ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned OuterBitSize = VT.getSizeInBits(); 1792e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands unsigned InnerBitSize = NVT.getSizeInBits(); 1793cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned LHSSB = DAG.ComputeNumSignBits(N->getOperand(0)); 1794cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned RHSSB = DAG.ComputeNumSignBits(N->getOperand(1)); 179569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1796e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); 1797e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (DAG.MaskedValueIsZero(N->getOperand(0), HighMask) && 1798e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands DAG.MaskedValueIsZero(N->getOperand(1), HighMask)) { 1799cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The inputs are both zero-extended. 1800cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1801cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a umul_lohi. 1802786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::UMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1803ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1804cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1805cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1806cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHU) { 1807cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhu+mul. 1808786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1809786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1810cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1811cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1812cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1813e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { 1814cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // The input values are both sign-extended. 1815cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasSMUL_LOHI) { 1816cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a smul_lohi. 1817786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SMUL_LOHI, dl, DAG.getVTList(NVT, NVT), LL, RL); 1818ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif Hi = SDValue(Lo.getNode(), 1); 1819cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1820cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1821cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasMULHS) { 1822cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // We can emit a mulhs+mul. 1823786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1824786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHS, dl, NVT, LL, RL); 1825cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1826cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1827cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1828cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (HasUMUL_LOHI) { 1829cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Lo,Hi = umul LHS, RHS. 1830786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, dl, 1831cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner DAG.getVTList(NVT, NVT), LL, RL); 1832cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Lo = UMulLOHI; 1833cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = UMulLOHI.getValue(1); 1834786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1835786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1836786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1837786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1838cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1839cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 1840e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands if (HasMULHU) { 1841786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::MUL, dl, NVT, LL, RL); 1842786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::MULHU, dl, NVT, LL, RL); 1843786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen RH = DAG.getNode(ISD::MUL, dl, NVT, LL, RH); 1844786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LH = DAG.getNode(ISD::MUL, dl, NVT, LH, RL); 1845786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, RH); 1846786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::ADD, dl, NVT, Hi, LH); 1847e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands return; 1848e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands } 1849cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 185041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1851cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If nothing else, we can make a libcall. 18525ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1853825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 185415c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::MUL_I16; 1855825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 18565ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I32; 1857825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 1858e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands LC = RTLIB::MUL_I64; 1859825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 18605ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::MUL_I128; 18615ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported MUL!"); 1862e9c80f4d576bf1ff682958d447c1a60fa9348da3Duncan Sands 1863475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1864c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true/*irrelevant*/, dl), Lo, Hi); 186541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 1866cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1867268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_SADDSUBO(SDNode *Node, 1868268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 1869268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = Node->getOperand(0); 1870268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = Node->getOperand(1); 1871268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = Node->getDebugLoc(); 1872268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1873268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 1874268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 1875268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(Node->getOpcode() == ISD::SADDO ? 1876268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 1877268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 1878268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 1879268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1880268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Compute the overflow. 1881268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1882268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // LHSSign -> LHS >= 0 1883268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // RHSSign -> RHS >= 0 1884268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // SumSign -> Sum >= 0 1885268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1886268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Add: 1887268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign == RHSSign) && (LHSSign != SumSign) 1888268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Sub: 1889268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Overflow -> (LHSSign != RHSSign) && (LHSSign != SumSign) 1890268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // 1891268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman EVT OType = Node->getValueType(1); 1892268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Zero = DAG.getConstant(0, LHS.getValueType()); 1893268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1894268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHSSign = DAG.getSetCC(dl, OType, LHS, Zero, ISD::SETGE); 1895268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHSSign = DAG.getSetCC(dl, OType, RHS, Zero, ISD::SETGE); 1896268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SignsMatch = DAG.getSetCC(dl, OType, LHSSign, RHSSign, 1897268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman Node->getOpcode() == ISD::SADDO ? 1898268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETEQ : ISD::SETNE); 1899268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1900268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSign = DAG.getSetCC(dl, OType, Sum, Zero, ISD::SETGE); 1901268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue SumSignNE = DAG.getSetCC(dl, OType, LHSSign, SumSign, ISD::SETNE); 1902268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1903268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Cmp = DAG.getNode(ISD::AND, dl, OType, SignsMatch, SumSignNE); 1904268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 1905268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 1906268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(Node, 1), Cmp); 1907268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 1908268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 190969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SDIV(SDNode *N, 1910475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1911e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1912c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 19135ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 19145ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 1915825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 1916a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SDIV_I16; 1917825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 19185ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I32; 1919825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 19205ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I64; 1921825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 19225ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands LC = RTLIB::SDIV_I128; 19235ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SDIV!"); 19245ac319ac7125b009adddcc49294d2e040c4a91e5Duncan Sands 1925475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 1926c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 1927ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands} 1928ddc016cc8592fe5c9379feb42a1fb4fb63164a91Duncan Sands 192969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_Shift(SDNode *N, 1930475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 1931e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 1932c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 193369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 193469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands // If we can emit an efficient shift operation, do so now. Check to see if 1935cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the RHS is a constant. 1936cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N->getOperand(1))) 1937f5aeb1a8e4cf272c7348376d185ef8d8267653e0Dan Gohman return ExpandShiftByConstant(N, CN->getZExtValue(), Lo, Hi); 1938cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 1939cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If we can determine that the high bit of the shift is zero or one, even if 1940cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // the low bits are variable, emit this shift in an optimized form. 1941cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ExpandShiftWithKnownAmountBit(N, Lo, Hi)) 1942cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 194369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1944cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this target supports shift_PARTS, use it. First, map to the _PARTS opc. 1945cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned PartsOpc; 194641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 1947cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SHL_PARTS; 194841edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 1949cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRL_PARTS; 195041edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 1951cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 1952cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner PartsOpc = ISD::SRA_PARTS; 1953cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 195469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1955cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Next check to see if the target supports this SHL_PARTS operation or if it 1956cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // will custom expand it. 195723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 1958cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner TargetLowering::LegalizeAction Action = TLI.getOperationAction(PartsOpc, NVT); 1959cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || 1960cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Action == TargetLowering::Custom) { 1961cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Expand the subcomponents. 1962475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSL, LHSH; 196369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), LHSL, LHSH); 196469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 1965475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[] = { LHSL, LHSH, N->getOperand(1) }; 1966e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = LHSL.getValueType(); 1967fc1665793e62eb4f26d24b8a19eecf59cd872e2aDan Gohman Lo = DAG.getNode(PartsOpc, dl, DAG.getVTList(VT, VT), Ops, 3); 1968cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner Hi = Lo.getValue(1); 1969cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 1970cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 197141edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 1972cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Otherwise, emit a libcall. 1973dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 197441edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands bool isSigned; 197541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands if (N->getOpcode() == ISD::SHL) { 197641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; /*sign irrelevant*/ 1977825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 197815c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SHL_I16; 1979825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 1980dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I32; 1981825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 1982dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I64; 1983825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 1984dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SHL_I128; 198541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else if (N->getOpcode() == ISD::SRL) { 198641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = false; 1987825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 198815c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRL_I16; 1989825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 1990dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I32; 1991825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 1992dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I64; 1993825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 1994dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRL_I128; 199541edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } else { 199641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands assert(N->getOpcode() == ISD::SRA && "Unknown shift!"); 199741edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands isSigned = true; 1998825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 199915c94d08ab2be2e3d00de4edbfc7adde6545a7dbSanjiv Gupta LC = RTLIB::SRA_I16; 2000825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 2001dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I32; 2002825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 2003dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I64; 2004825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 2005dddc6291fb5274282a20d5923b50535d456d34a4Duncan Sands LC = RTLIB::SRA_I128; 200641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands } 20078c899ee031481dbece5f111379a274c848cb5902Duncan Sands 20086fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (LC != RTLIB::UNKNOWN_LIBCALL && TLI.getLibcallName(LC)) { 20096fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 20106fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng SplitInteger(MakeLibCall(LC, VT, Ops, 2, isSigned, dl), Lo, Hi); 20116fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng return; 20126fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng } 201341edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 20146fb2168aaed06e4685d064b6f63dc4c668b42728Evan Cheng if (!ExpandShiftWithUnknownAmountBit(N, Lo, Hi)) 2015c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Unsupported shift!"); 201641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands} 2017cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 201805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SIGN_EXTEND(SDNode *N, 2019475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 202023b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2021786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2022475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 202305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2024b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is sign extension of the input (degenerates to a copy). 2025786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND, dl, NVT, N->getOperand(0)); 202605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part is obtained by SRA'ing all but one of the bits of low part. 202705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned LoSize = NVT.getSizeInBits(); 2028786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, NVT, Lo, 202992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(LoSize-1, TLI.getPointerTy())); 203005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 203105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 203205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 203305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 203405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2035475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 203605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 203705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 203805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 203905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 204005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 204105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2042786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 2043285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 2044285fb1cc4a7ea924b4d94e9c2cb890125d56a7e0Evan Cheng ExcessBits))); 204505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 204605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 204705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 204805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer:: 2049475871a144eb604ddaf37503397ba0941442e5fbDan GohmanExpandIntRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi) { 2050786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 205169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getOperand(0), Lo, Hi); 2052e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT EVT = cast<VTSDNode>(N->getOperand(1))->getVT(); 2053d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 205405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (EVT.bitsLE(Lo.getValueType())) { 205505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the low part if needed. 2056786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Lo.getValueType(), Lo, 205705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(1)); 2058d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 205905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The high part gets the sign extension from the lo-part. This handles 206005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // things like sextinreg V:i64 from i8. 2061786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRA, dl, Hi.getValueType(), Lo, 206205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getConstant(Hi.getValueType().getSizeInBits()-1, 206392abc62399881ba9c525be80362c134ad836e2d9Duncan Sands TLI.getPointerTy())); 206405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 206505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. Leave the low part alone, 206605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // sext_inreg the high part. 206705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 206805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands EVT.getSizeInBits() - Lo.getValueType().getSizeInBits(); 2069786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Hi.getValueType(), Hi, 207054e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher DAG.getValueType(EVT::getIntegerVT(*DAG.getContext(), 207154e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits))); 207205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 207305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2074d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 207505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_SREM(SDNode *N, 2076475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2077e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2078c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 207905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 208005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2081825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2082a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::SREM_I16; 2083825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 208405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I32; 2085825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 208605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I64; 2087825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 208805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::SREM_I128; 208905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported SREM!"); 209005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2091475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2092c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, true, dl), Lo, Hi); 2093d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2094d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 209505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_TRUNCATE(SDNode *N, 2096475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 209723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2098786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2099786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::TRUNCATE, dl, NVT, N->getOperand(0)); 2100786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::SRL, dl, 2101786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen N->getOperand(0).getValueType(), N->getOperand(0), 210292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands DAG.getConstant(NVT.getSizeInBits(), TLI.getPointerTy())); 2103786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Hi = DAG.getNode(ISD::TRUNCATE, dl, NVT, Hi); 2104d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2105d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2106268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedmanvoid DAGTypeLegalizer::ExpandIntRes_UADDSUBO(SDNode *N, 2107268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue &Lo, SDValue &Hi) { 2108268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue LHS = N->getOperand(0); 2109268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue RHS = N->getOperand(1); 2110268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman DebugLoc dl = N->getDebugLoc(); 2111268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2112268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Expand the result by simply replacing it with the equivalent 2113268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // non-overflow-checking operation. 2114268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Sum = DAG.getNode(N->getOpcode() == ISD::UADDO ? 2115268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::ADD : ISD::SUB, dl, LHS.getValueType(), 2116268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman LHS, RHS); 2117268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SplitInteger(Sum, Lo, Hi); 2118268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2119268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Calculate the overflow: addition overflows iff a + b < a, and subtraction 2120268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // overflows iff a - b > a. 2121268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman SDValue Ofl = DAG.getSetCC(dl, N->getValueType(1), Sum, LHS, 2122268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman N->getOpcode () == ISD::UADDO ? 2123268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ISD::SETULT : ISD::SETUGT); 2124268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 2125268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman // Use the calculated overflow everywhere. 2126268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman ReplaceValueWith(SDValue(N, 1), Ofl); 2127268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman} 2128268637ed0f34e10e4125e94c44ff3e2975a19166Eli Friedman 212905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UDIV(SDNode *N, 2130475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2131e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2132c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2133d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 213405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2135825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2136a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UDIV_I16; 2137825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 213805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I32; 2139825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 214005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I64; 2141825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 214205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UDIV_I128; 214305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UDIV!"); 2144d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands 2145475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2146c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2147d462ba853981d45bf9c777564e79dc9e1c850ca6Duncan Sands} 2148cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 214905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_UREM(SDNode *N, 2150475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 2151e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getValueType(0); 2152c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 215369b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 215405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; 2155825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (VT == MVT::i16) 2156a43a7aefd753fe7d6005cbebc9619268db4ae139Sanjiv Gupta LC = RTLIB::UREM_I16; 2157825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i32) 215805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I32; 2159825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i64) 216005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I64; 2161825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (VT == MVT::i128) 216205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands LC = RTLIB::UREM_I128; 216305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported UREM!"); 2164cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2165475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ops[2] = { N->getOperand(0), N->getOperand(1) }; 2166c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen SplitInteger(MakeLibCall(LC, VT, Ops, 2, false, dl), Lo, Hi); 2167cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2168cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 216905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsvoid DAGTypeLegalizer::ExpandIntRes_ZERO_EXTEND(SDNode *N, 2170475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &Lo, SDValue &Hi) { 217123b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), N->getValueType(0)); 2172786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2173475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 217405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (Op.getValueType().bitsLE(NVT)) { 2175b3bc6352defdf1a5c6b1b0770d0c4d603f6524a8Duncan Sands // The low part is zero extension of the input (degenerates to a copy). 2176786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Lo = DAG.getNode(ISD::ZERO_EXTEND, dl, NVT, N->getOperand(0)); 217705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Hi = DAG.getConstant(0, NVT); // The high part is just a zero. 217805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } else { 217905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // For example, extension of an i48 to an i64. The operand type necessarily 218005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // promotes to the result type, so will end up being expanded too. 218105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(getTypeAction(Op.getValueType()) == PromoteInteger && 218205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Only know how to promote this result!"); 2183475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = GetPromotedInteger(Op); 218405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && 218505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Operand over promoted?"); 218605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Split the promoted operand. This will simplify when it is expanded. 218705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SplitInteger(Res, Lo, Hi); 218805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands unsigned ExcessBits = 218905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands Op.getValueType().getSizeInBits() - NVT.getSizeInBits(); 2190adf979900c84d00e1fe0872a68d2819c654b6f29Evan Cheng Hi = DAG.getZeroExtendInReg(Hi, dl, 219154e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher EVT::getIntegerVT(*DAG.getContext(), 219254e1791e4ba30867bda603acadda77fa85de6aa1Eric Christopher ExcessBits)); 21939e255b7df5a0a629920706e086e78ef89bf2f183Dan Gohman } 2194cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2195cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2196cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2197cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 219869b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands// Integer Operand Expansion 2199cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner//===----------------------------------------------------------------------===// 2200cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 220105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// ExpandIntegerOperand - This method is called when the specified operand of 220205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// the specified node is found to need expansion. At this point, all of the 220305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// result types of the node are known to be legal, but other operands of the 220405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands/// node may need promotion or expansion as well as the specified one. 220505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sandsbool DAGTypeLegalizer::ExpandIntegerOperand(SDNode *N, unsigned OpNo) { 2206d765353da89988e949fd4c021d8860f36ab7c392David Greene DEBUG(dbgs() << "Expand integer operand: "; N->dump(&DAG); dbgs() << "\n"); 2207475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Res = SDValue(); 2208051bb7b07504be9f848f7cce802e62ed24980bc5Duncan Sands 2209f43071beddb7ed5b2fd7d2f06c4130460616a13dDuncan Sands if (CustomLowerNode(N, N->getOperand(OpNo).getValueType(), false)) 2210bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta return false; 221111ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands 2212bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta switch (N->getOpcode()) { 2213bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta default: 221405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #ifndef NDEBUG 2215d765353da89988e949fd4c021d8860f36ab7c392David Greene dbgs() << "ExpandIntegerOperand Op #" << OpNo << ": "; 2216d765353da89988e949fd4c021d8860f36ab7c392David Greene N->dump(&DAG); dbgs() << "\n"; 221705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands #endif 2218c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Do not know how to expand this operator's operand!"); 2219bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta 2220bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck case ISD::BITCAST: Res = ExpandOp_BITCAST(N); break; 222192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BR_CC: Res = ExpandIntOp_BR_CC(N); break; 222292abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::BUILD_VECTOR: Res = ExpandOp_BUILD_VECTOR(N); break; 2223bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::EXTRACT_ELEMENT: Res = ExpandOp_EXTRACT_ELEMENT(N); break; 2224bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::INSERT_VECTOR_ELT: Res = ExpandOp_INSERT_VECTOR_ELT(N); break; 2225bb326bbe88d0b243d5d9d224308eb0c028d4d4afSanjiv Gupta case ISD::SCALAR_TO_VECTOR: Res = ExpandOp_SCALAR_TO_VECTOR(N); break; 222692abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SELECT_CC: Res = ExpandIntOp_SELECT_CC(N); break; 222792abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SETCC: Res = ExpandIntOp_SETCC(N); break; 222892abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::SINT_TO_FP: Res = ExpandIntOp_SINT_TO_FP(N); break; 222992abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::STORE: Res = ExpandIntOp_STORE(cast<StoreSDNode>(N), OpNo); break; 223092abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::TRUNCATE: Res = ExpandIntOp_TRUNCATE(N); break; 223192abc62399881ba9c525be80362c134ad836e2d9Duncan Sands case ISD::UINT_TO_FP: Res = ExpandIntOp_UINT_TO_FP(N); break; 223255467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 223355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SHL: 223455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRA: 223555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::SRL: 223655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta case ISD::ROTL: 22371c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::ROTR: Res = ExpandIntOp_Shift(N); break; 22381c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::RETURNADDR: 22391c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov case ISD::FRAMEADDR: Res = ExpandIntOp_RETURNADDR(N); break; 224005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 224169b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 224205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If the result is null, the sub-method took care of registering results etc. 2243ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Res.getNode()) return false; 224447d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands 224547d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // If the result is N, the sub-method updated N in place. Tell the legalizer 224647d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands // core about this. 224747d9dcc584cdb7fd645ca1d5c2a0ce363570aeb7Duncan Sands if (Res.getNode() == N) 224805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return true; 2249cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 225005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(Res.getValueType() == N->getValueType(0) && N->getNumValues() == 1 && 225105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Invalid operand expansion"); 225205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2253475871a144eb604ddaf37503397ba0941442e5fbDan Gohman ReplaceValueWith(SDValue(N, 0), Res); 225405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return false; 2255cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2256cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 225711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// IntegerExpandSetCCOperands - Expand the operands of a comparison. This code 225811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands/// is shared among BR_CC, SELECT_CC, and SETCC handlers. 2259475871a144eb604ddaf37503397ba0941442e5fbDan Gohmanvoid DAGTypeLegalizer::IntegerExpandSetCCOperands(SDValue &NewLHS, 2260475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue &NewRHS, 2261c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen ISD::CondCode &CCCode, 2262c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl) { 2263475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue LHSLo, LHSHi, RHSLo, RHSHi; 226469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewLHS, LHSLo, LHSHi); 226569b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(NewRHS, RHSLo, RHSHi); 226641edfb8ae119d6cf6579046619dd2820ec876065Duncan Sands 2267cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (CCCode == ISD::SETEQ || CCCode == ISD::SETNE) { 226811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (RHSLo == RHSHi) { 226911ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) { 2270cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (RHSCST->isAllOnesValue()) { 2271cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Equality comparison to -1. 22727fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands NewLHS = DAG.getNode(ISD::AND, dl, 2273786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen LHSLo.getValueType(), LHSLo, LHSHi); 2274cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSLo; 2275cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2276cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 227711ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 227811ac797f5ed142f11aafde3dd76c28a73d84282eDuncan Sands } 227969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2280786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSLo, RHSLo); 2281786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewRHS = DAG.getNode(ISD::XOR, dl, LHSLo.getValueType(), LHSHi, RHSHi); 2282786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::OR, dl, NewLHS.getValueType(), NewLHS, NewRHS); 2283cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 2284cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2285cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 228669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2287cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // If this is a comparison of the sign bit, just look at the top part. 2288cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // X > -1, x < 0 2289cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(NewRHS)) 2290002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((CCCode == ISD::SETLT && CST->isNullValue()) || // X < 0 2291cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETGT && CST->isAllOnesValue())) { // X > -1 2292cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = LHSHi; 2293cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewRHS = RHSHi; 2294cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2295cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 229669b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2297cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // FIXME: This generated code sucks. 2298cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner ISD::CondCode LowCC; 2299cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner switch (CCCode) { 2300c23197a26f34f559ea9797de51e187087c039c42Torok Edwin default: llvm_unreachable("Unknown integer setcc!"); 2301cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLT: 2302cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULT: LowCC = ISD::SETULT; break; 2303cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGT: 2304cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGT: LowCC = ISD::SETUGT; break; 2305cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETLE: 2306cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETULE: LowCC = ISD::SETULE; break; 2307cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETGE: 2308cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner case ISD::SETUGE: LowCC = ISD::SETUGE; break; 2309cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 231069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2311cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison 2312cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands 2313cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; 231469b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2315cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // NOTE: on targets without efficient SELECT of bools, we can always use 2316cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) 231778d12644b905dc54cf6cf984af02a49d30d29744Jakob Stoklund Olesen TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, true, NULL); 2318475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Tmp1, Tmp2; 23195480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo.getValueType()), 2320ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSLo, RHSLo, LowCC, false, DagCombineInfo, dl); 2321ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp1.getNode()) 2322786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp1 = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSLo.getValueType()), 23235480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSLo, RHSLo, LowCC); 23245480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2325ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen LHSHi, RHSHi, CCCode, false, DagCombineInfo, dl); 2326ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!Tmp2.getNode()) 2327786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Tmp2 = DAG.getNode(ISD::SETCC, dl, 2328786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(LHSHi.getValueType()), 23295480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, DAG.getCondCode(CCCode)); 233069b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 2331ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); 2332ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); 2333002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman if ((Tmp1C && Tmp1C->isNullValue()) || 2334002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->isNullValue() && 2335cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLE || CCCode == ISD::SETGE || 2336cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || 2337002e5d0a170dadd5c307e0b00d8c7970835837e6Dan Gohman (Tmp2C && Tmp2C->getAPIntValue() == 1 && 2338cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner (CCCode == ISD::SETLT || CCCode == ISD::SETGT || 2339cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { 2340cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // low part is known false, returns high part. 2341cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LE / GE, if high part is known false, ignore the low part. 2342cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // For LT / GT, if high part is known true, ignore the low part. 2343cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS = Tmp2; 2344475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2345cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner return; 2346cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 234769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands 23485480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands NewLHS = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi.getValueType()), 2349fdc40a0a696c658d550d894ea03772e5f8af2c94Scott Michel LHSHi, RHSHi, ISD::SETEQ, false, 2350ff97d4fe81ef0dcee9fe490bed8ab08e40251905Dale Johannesen DagCombineInfo, dl); 2351ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (!NewLHS.getNode()) 2352786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getSetCC(dl, TLI.getSetCCResultType(LHSHi.getValueType()), 23535480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands LHSHi, RHSHi, ISD::SETEQ); 2354786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen NewLHS = DAG.getNode(ISD::SELECT, dl, Tmp1.getValueType(), 2355cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner NewLHS, Tmp1, Tmp2); 2356475871a144eb604ddaf37503397ba0941442e5fbDan Gohman NewRHS = SDValue(); 2357cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 2358cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2359475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_BR_CC(SDNode *N) { 2360475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(2), NewRHS = N->getOperand(3); 236105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(1))->get(); 2362c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 236305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 236405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 236505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2366ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 236705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 236805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 236905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 237005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 237105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2372027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), 237305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands DAG.getCondCode(CCCode), NewLHS, NewRHS, 2374027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman N->getOperand(4)), 0); 237505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 237605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2377475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SELECT_CC(SDNode *N) { 2378475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 237905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(4))->get(); 2380c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 238105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 238205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, we need to compare the result 238305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // against zero to select between true and false values. 2384ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 238505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands NewRHS = DAG.getConstant(0, NewLHS.getValueType()); 238605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands CCCode = ISD::SETNE; 238705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 238805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 238905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Update N to have the operands specified. 2390027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 239105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands N->getOperand(2), N->getOperand(3), 2392027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 239305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 239405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2395475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SETCC(SDNode *N) { 2396475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue NewLHS = N->getOperand(0), NewRHS = N->getOperand(1); 239705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands ISD::CondCode CCCode = cast<CondCodeSDNode>(N->getOperand(2))->get(); 2398c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen IntegerExpandSetCCOperands(NewLHS, NewRHS, CCCode, N->getDebugLoc()); 239905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 240005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // If ExpandSetCCOperands returned a scalar, use it. 2401ba36cb5242eb02b12b277f82b9efe497f7da4d7fGabor Greif if (NewRHS.getNode() == 0) { 240205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(NewLHS.getValueType() == N->getValueType(0) && 240305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Unexpected setcc expansion!"); 240405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands return NewLHS; 240505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 240605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 240705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, update N to have the operands specified. 2408027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, NewLHS, NewRHS, 2409027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman DAG.getCondCode(CCCode)), 0); 241005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 241105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 241255467af31620c9d027e071ebcd9746b7593cff17Sanjiv GuptaSDValue DAGTypeLegalizer::ExpandIntOp_Shift(SDNode *N) { 241355467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // The value being shifted is legal, but the shift amount is too big. 241455467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // It follows that either the result of the shift is undefined, or the 241555467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta // upper half of the shift amount is zero. Just use the lower half. 241655467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta SDValue Lo, Hi; 241755467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta GetExpandedInteger(N->getOperand(1), Lo, Hi); 2418027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, N->getOperand(0), Lo), 0); 241955467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta} 242055467af31620c9d027e071ebcd9746b7593cff17Sanjiv Gupta 24211c3436a67afcfaee5f972836ff1ffff2985adce1Anton KorobeynikovSDValue DAGTypeLegalizer::ExpandIntOp_RETURNADDR(SDNode *N) { 24221c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // The argument of RETURNADDR / FRAMEADDR builtin is 32 bit contant. This 24231c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // surely makes pretty nice problems on 8/16 bit targets. Just truncate this 24241c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov // constant to valid type. 24251c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov SDValue Lo, Hi; 24261c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov GetExpandedInteger(N->getOperand(0), Lo, Hi); 2427027657db7cf60bcbf40403496d7e4a170f9ce1ecDan Gohman return SDValue(DAG.UpdateNodeOperands(N, Lo), 0); 24281c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov} 24291c3436a67afcfaee5f972836ff1ffff2985adce1Anton Korobeynikov 2430475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_SINT_TO_FP(SDNode *N) { 2431475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2432e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2433b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getSINTTOFP(Op.getValueType(), DstVT); 243405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 243505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this SINT_TO_FP!"); 2436c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, N->getDebugLoc()); 243705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 243805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2439475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo) { 2440ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands if (ISD::isNormalStore(N)) 2441ab09b7e8f34075c1759127a113f41bdf921f4034Duncan Sands return ExpandOp_NormalStore(N, OpNo); 244278cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands 244378cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands assert(ISD::isUNINDEXEDStore(N) && "Indexed store during type legalization!"); 2444cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner assert(OpNo == 1 && "Can only expand the stored value so far"); 2445cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2446e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT VT = N->getOperand(1).getValueType(); 244723b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NVT = TLI.getTypeToTransformTo(*DAG.getContext(), VT); 2448475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ch = N->getChain(); 2449475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Ptr = N->getBasePtr(); 2450cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned Alignment = N->getAlignment(); 2451cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner bool isVolatile = N->isVolatile(); 24521e559443a17d1b335f697551c6263ba60d5dd827David Greene bool isNonTemporal = N->isNonTemporal(); 2453786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen DebugLoc dl = N->getDebugLoc(); 2454475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 2455cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2456a1ace76c70ae5332d6f33fce5c0c1e2fdb8cca11Duncan Sands assert(NVT.isByteSized() && "Expanded type not byte sized!"); 2457cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 245878cd649ad326f79a1f8424ca2b63cea3239a9a52Duncan Sands if (N->getMemoryVT().bitsLE(NVT)) { 245969b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2460ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getTruncStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 24611e559443a17d1b335f697551c6263ba60d5dd827David Greene N->getMemoryVT(), isVolatile, isNonTemporal, 24621e559443a17d1b335f697551c6263ba60d5dd827David Greene Alignment); 2463ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2464bf17cfa3f904e488e898ac2e3af706fd1a892f08Wesley Peck 2465ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (TLI.isLittleEndian()) { 2466cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Little-endian - low bits are at low addresses. 246769b01e92a29ce6d7e435171aeea3fbc987b81586Duncan Sands GetExpandedInteger(N->getValue(), Lo, Hi); 2468cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2469ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getStore(Ch, dl, Lo, Ptr, N->getPointerInfo(), 24701e559443a17d1b335f697551c6263ba60d5dd827David Greene isVolatile, isNonTemporal, Alignment); 2471cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2472cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner unsigned ExcessBits = 247383ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands N->getMemoryVT().getSizeInBits() - NVT.getSizeInBits(); 247423b9b19b1a5a00faa9fce0788155c7dbfd00bfb1Owen Anderson EVT NEVT = EVT::getIntegerVT(*DAG.getContext(), ExcessBits); 2475cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2476cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner // Increment the pointer to the other half. 247783ec4b6711980242ef3c55a4fa36b2d7a39c1bfbDuncan Sands unsigned IncrementSize = NVT.getSizeInBits()/8; 2478786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 24790bd4893a0726889b942405262e53d06cf3fe3be8Chris Lattner DAG.getIntPtrConstant(IncrementSize)); 2480ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, 2481ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2482ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner NEVT, isVolatile, isNonTemporal, 24831e559443a17d1b335f697551c6263ba60d5dd827David Greene MinAlign(Alignment, IncrementSize)); 2484825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2485ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner } 2486cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner 2487ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Big-endian - high bits are at low addresses. Favor aligned stores at 2488ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // the cost of some bit-fiddling. 2489ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner GetExpandedInteger(N->getValue(), Lo, Hi); 2490ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2491ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT ExtVT = N->getMemoryVT(); 2492ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned EBytes = ExtVT.getStoreSize(); 2493ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned IncrementSize = NVT.getSizeInBits()/8; 2494ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner unsigned ExcessBits = (EBytes - IncrementSize)*8; 2495ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT HiVT = EVT::getIntegerVT(*DAG.getContext(), 2496ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner ExtVT.getSizeInBits() - ExcessBits); 2497ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2498ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner if (ExcessBits < NVT.getSizeInBits()) { 2499ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Transfer high bits from the top of Lo to the bottom of Hi. 2500ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::SHL, dl, NVT, Hi, 2501ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(NVT.getSizeInBits() - ExcessBits, 2502ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy())); 2503ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getNode(ISD::OR, dl, NVT, Hi, 2504ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getNode(ISD::SRL, dl, NVT, Lo, 2505ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getConstant(ExcessBits, 2506ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner TLI.getPointerTy()))); 2507cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner } 2508ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2509ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store both the high bits and maybe some of the low bits. 2510ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Hi = DAG.getTruncStore(Ch, dl, Hi, Ptr, N->getPointerInfo(), 2511ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner HiVT, isVolatile, isNonTemporal, Alignment); 2512ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner 2513ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Increment the pointer to the other half. 2514ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Ptr = DAG.getNode(ISD::ADD, dl, Ptr.getValueType(), Ptr, 2515ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner DAG.getIntPtrConstant(IncrementSize)); 2516ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner // Store the lowest ExcessBits bits in the second half. 2517ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner Lo = DAG.getTruncStore(Ch, dl, Lo, Ptr, 2518ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner N->getPointerInfo().getWithOffset(IncrementSize), 2519ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner EVT::getIntegerVT(*DAG.getContext(), ExcessBits), 2520ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner isVolatile, isNonTemporal, 2521ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner MinAlign(Alignment, IncrementSize)); 2522ecf42c4720aba6ee315d0166045c54187ac2de4dChris Lattner return DAG.getNode(ISD::TokenFactor, dl, MVT::Other, Lo, Hi); 2523cc663a8112017f06e0cd4b6fe1546ccfcd5d05c3Chris Lattner} 252405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 2525475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_TRUNCATE(SDNode *N) { 2526475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue InL, InH; 252705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(N->getOperand(0), InL, InH); 252805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Just truncate the low part of the source. 2529786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::TRUNCATE, N->getDebugLoc(), N->getValueType(0), InL); 253005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 253105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 25328d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesenstatic const fltSemantics *EVTToAPFloatSemantics(EVT VT) { 25338d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen switch (VT.getSimpleVT().SimpleTy) { 25348d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen default: llvm_unreachable("Unknown FP format"); 25358d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f32: return &APFloat::IEEEsingle; 25368d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f64: return &APFloat::IEEEdouble; 25378d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f80: return &APFloat::x87DoubleExtended; 25388d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::f128: return &APFloat::IEEEquad; 25398d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen case MVT::ppcf128: return &APFloat::PPCDoubleDouble; 25408d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen } 25418d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen} 25428d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen 2543475871a144eb604ddaf37503397ba0941442e5fbDan GohmanSDValue DAGTypeLegalizer::ExpandIntOp_UINT_TO_FP(SDNode *N) { 2544475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Op = N->getOperand(0); 2545e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT SrcVT = Op.getValueType(); 2546e50ed30282bb5b4a9ed952580523f2dda16215acOwen Anderson EVT DstVT = N->getValueType(0); 2547c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen DebugLoc dl = N->getDebugLoc(); 254805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 25498d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // The following optimization is valid only if every value in SrcVT (when 25508d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // treated as signed) is representable in DstVT. Check that the mantissa 25518d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen // size of DstVT is >= than the number of bits in SrcVT -1. 25528d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen const fltSemantics *sem = EVTToAPFloatSemantics(DstVT); 25538d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen if (APFloat::semanticsPrecision(*sem) >= SrcVT.getSizeInBits()-1 && 25548d908ebd1926d00ff47d8284e52657705efb7f9bDale Johannesen TLI.getOperationAction(ISD::SINT_TO_FP, SrcVT) == TargetLowering::Custom){ 255505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Do a signed conversion then adjust the result. 2556786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue SignedConv = DAG.getNode(ISD::SINT_TO_FP, dl, DstVT, Op); 255705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands SignedConv = TLI.LowerOperation(SignedConv, DAG); 255805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 255905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // The result of the signed conversion needs adjusting if the 'sign bit' of 256005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // the incoming integer was set. To handle this, we dynamically test to see 256105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // if it is set, and, if so, add a fudge factor. 256205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 256305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE32 = 0x4F800000ULL; 256405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE64 = 0x5F800000ULL; 256505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands const uint64_t F32TwoE128 = 0x7F800000ULL; 256605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 256705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands APInt FF(32, 0); 2568825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson if (SrcVT == MVT::i32) 256905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE32); 2570825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i64) 257105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE64); 2572825b72b0571821bf2d378749f69d6c4cfb52d2f9Owen Anderson else if (SrcVT == MVT::i128) 257305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands FF = APInt(32, F32TwoE128); 257405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands else 257505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(false && "Unsupported UINT_TO_FP!"); 257605c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 257705c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Check whether the sign bit is set. 2578475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Lo, Hi; 257905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands GetExpandedInteger(Op, Lo, Hi); 25807fb085871857134f8cbeb17499d4ab771ba8da42Duncan Sands SDValue SignSet = DAG.getSetCC(dl, 2581786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen TLI.getSetCCResultType(Hi.getValueType()), 25825480c0469e5c0323ffb12f1ead2abd169d6cc0e7Duncan Sands Hi, DAG.getConstant(0, Hi.getValueType()), 2583ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands ISD::SETLT); 258405c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 258505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Build a 64 bit pair (0, FF) in the constant pool, with FF in the lo bits. 2586001dbfebcbbded8c8e74b19e838b50da2b6c6fb5Owen Anderson SDValue FudgePtr = DAG.getConstantPool( 2587eed707b1e6097aac2bb6b3d47271f6300ace7f2eOwen Anderson ConstantInt::get(*DAG.getContext(), FF.zext(64)), 258849c18cce976c158e86f54c681dff21bb81640fb8Duncan Sands TLI.getPointerTy()); 258905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 259005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Get a pointer to FF if the sign bit was set, or to 0 otherwise. 2591475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Zero = DAG.getIntPtrConstant(0); 2592475871a144eb604ddaf37503397ba0941442e5fbDan Gohman SDValue Four = DAG.getIntPtrConstant(4); 259305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands if (TLI.isBigEndian()) std::swap(Zero, Four); 2594786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen SDValue Offset = DAG.getNode(ISD::SELECT, dl, Zero.getValueType(), SignSet, 2595ef5b199905cee0b78eb30cd44836e5b6ca5cbd09Duncan Sands Zero, Four); 25961606e8e4cd937e6de6681f686c266cf61722d972Evan Cheng unsigned Alignment = cast<ConstantPoolSDNode>(FudgePtr)->getAlignment(); 2597786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen FudgePtr = DAG.getNode(ISD::ADD, dl, TLI.getPointerTy(), FudgePtr, Offset); 259887a0f10dc7eff8cf5e83a754f75adf9cb3991435Dan Gohman Alignment = std::min(Alignment, 4u); 259905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 260005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Load the value out, extending it from f32 to the destination float type. 260105c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // FIXME: Avoid the extend by constructing the right constant pool? 2602a901129169194881a78b7fd8953e09f55b846d10Stuart Hastings SDValue Fudge = DAG.getExtLoad(ISD::EXTLOAD, dl, DstVT, DAG.getEntryNode(), 26033d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner FudgePtr, 26043d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MachinePointerInfo::getConstantPool(), 26053d6ccfba314ed38e4506dae2781a060e9a3e07acChris Lattner MVT::f32, 26061e559443a17d1b335f697551c6263ba60d5dd827David Greene false, false, Alignment); 2607786fd4dded6a42561c0d82bbd9d13b9a4d8d9675Dale Johannesen return DAG.getNode(ISD::FADD, dl, DstVT, SignedConv, Fudge); 260805c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands } 260905c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands 261005c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands // Otherwise, use a libcall. 2611b2ff885aaed8f9b033b16ca78d645650efc32433Duncan Sands RTLIB::Libcall LC = RTLIB::getUINTTOFP(SrcVT, DstVT); 261205c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands assert(LC != RTLIB::UNKNOWN_LIBCALL && 261305c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands "Don't know how to expand this UINT_TO_FP!"); 2614c8fc99d66a03dc603f49d653937ad1d94e833006Dale Johannesen return MakeLibCall(LC, DstVT, &Op, 1, true, dl); 261505c397d52a145c8844790d6491c4c51d4bbfed7cDuncan Sands} 2616