ARMAsmPrinter.cpp revision 0be77dff1147488814b8eea6ec8619f56e3d9f5e
197f06937449c593a248dbbb1365e6ae408fb9decChris Lattner//===-- ARMAsmPrinter.cpp - Print machine code to an ARM .s file ----------===// 297f06937449c593a248dbbb1365e6ae408fb9decChris Lattner// 37bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola// The LLVM Compiler Infrastructure 47bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 67bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola// License. See LICENSE.TXT for details. 77bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola// 87bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola//===----------------------------------------------------------------------===// 97bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola// 107bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola// This file contains a printer that converts from our internal representation 117bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola// of machine-dependent LLVM code to GAS-format ARM assembly language. 127bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola// 137bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola//===----------------------------------------------------------------------===// 147bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 1595b2c7da5e83670881270c1cd231a240be0556d9Chris Lattner#define DEBUG_TYPE "asm-printer" 167bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola#include "ARM.h" 17b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "ARMAsmPrinter.h" 18a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include "ARMAddressingModes.h" 19b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "ARMBuildAttrs.h" 20b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "ARMBaseRegisterInfo.h" 21a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include "ARMConstantPoolValue.h" 2297f06937449c593a248dbbb1365e6ae408fb9decChris Lattner#include "ARMMachineFunctionInfo.h" 235de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng#include "ARMMCExpr.h" 2497f06937449c593a248dbbb1365e6ae408fb9decChris Lattner#include "ARMTargetMachine.h" 2517b443df4368acfad853d09858c033c45c468d5cJason W Kim#include "ARMTargetObjectFile.h" 26b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "InstPrinter/ARMInstPrinter.h" 273f282aa94b80f4a93ff3cbc37cf3cd4a851c8432Dale Johannesen#include "llvm/Analysis/DebugInfo.h" 287bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola#include "llvm/Constants.h" 297bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola#include "llvm/Module.h" 30e55b15fa4753ef08cbfa2127d2d220b77aa07d87Benjamin Kramer#include "llvm/Type.h" 31cf20ac4fd12ea3510a8f32a24fff69eebe7b6f4aDan Gohman#include "llvm/Assembly/Writer.h" 32b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner#include "llvm/CodeGen/MachineModuleInfoImpls.h" 337bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola#include "llvm/CodeGen/MachineFunctionPass.h" 34a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include "llvm/CodeGen/MachineJumpTableInfo.h" 35b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner#include "llvm/MC/MCAsmInfo.h" 36cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola#include "llvm/MC/MCAssembler.h" 37b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner#include "llvm/MC/MCContext.h" 38becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling#include "llvm/MC/MCExpr.h" 3997f06937449c593a248dbbb1365e6ae408fb9decChris Lattner#include "llvm/MC/MCInst.h" 40f9bdeddb96043559c61f176f8077e3b91a0c544fChris Lattner#include "llvm/MC/MCSectionMachO.h" 41cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola#include "llvm/MC/MCObjectStreamer.h" 426c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner#include "llvm/MC/MCStreamer.h" 43325d3dcfe4d5efc91db0f59b20a72a11dea024edChris Lattner#include "llvm/MC/MCSymbol.h" 44d62f1b4168d4327c119642d28c26c836ae6717abChris Lattner#include "llvm/Target/Mangler.h" 45b01c4bbb4573e0007444e218b683840e4519e0c8Rafael Espindola#include "llvm/Target/TargetData.h" 467bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola#include "llvm/Target/TargetMachine.h" 475be54b00bdbe1abd02dde46ca2c4b0e5aaf7b537Evan Cheng#include "llvm/Target/TargetOptions.h" 4851b198af83cb0080c2709b04c129a3d774c07765Daniel Dunbar#include "llvm/Target/TargetRegistry.h" 49c324ecb7bc93a1f09db29851438ec5ee72b143ebEvan Cheng#include "llvm/ADT/SmallPtrSet.h" 50c40d9f9bae70c83947bf8fa5f9ee97adbf1bb0c0Jim Grosbach#include "llvm/ADT/SmallString.h" 5154c78ef2fed32e82e6aea8cbeb89156814eaf27cBob Wilson#include "llvm/ADT/StringExtras.h" 5297f06937449c593a248dbbb1365e6ae408fb9decChris Lattner#include "llvm/Support/CommandLine.h" 5359135f49e1699daec9a43fc2d15715d55b910f54Devang Patel#include "llvm/Support/Debug.h" 543046470919e648ff7c011bda9c094163062c83dcTorok Edwin#include "llvm/Support/ErrorHandling.h" 55b23569aff0a6d2b231cb93cc4acd0ac060ba560fChris Lattner#include "llvm/Support/raw_ostream.h" 567bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola#include <cctype> 577bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindolausing namespace llvm; 587bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 5995b2c7da5e83670881270c1cd231a240be0556d9Chris Lattnernamespace { 60cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 61cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // Per section and per symbol attributes are not supported. 62cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // To implement them we would need the ability to delay this emission 63cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // until the assembly file is fully parsed/generated as only then do we 64cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // know the symbol and section numbers. 65cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola class AttributeEmitter { 66cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola public: 67cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola virtual void MaybeSwitchVendor(StringRef Vendor) = 0; 68cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola virtual void EmitAttribute(unsigned Attribute, unsigned Value) = 0; 69f009a961caa75465999ef3bc764984d97a7da331Jason W Kim virtual void EmitTextAttribute(unsigned Attribute, StringRef String) = 0; 70cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola virtual void Finish() = 0; 714921e2356ef8f3b3f9ebd0c154b091c3d5dd2ce4Rafael Espindola virtual ~AttributeEmitter() {} 72cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola }; 73cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 74cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola class AsmAttributeEmitter : public AttributeEmitter { 75cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola MCStreamer &Streamer; 76cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 77cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola public: 78cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AsmAttributeEmitter(MCStreamer &Streamer_) : Streamer(Streamer_) {} 79cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void MaybeSwitchVendor(StringRef Vendor) { } 80cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 81cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void EmitAttribute(unsigned Attribute, unsigned Value) { 82cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Streamer.EmitRawText("\t.eabi_attribute " + 83cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Twine(Attribute) + ", " + Twine(Value)); 84cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 85cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 86f009a961caa75465999ef3bc764984d97a7da331Jason W Kim void EmitTextAttribute(unsigned Attribute, StringRef String) { 87f009a961caa75465999ef3bc764984d97a7da331Jason W Kim switch (Attribute) { 88f009a961caa75465999ef3bc764984d97a7da331Jason W Kim case ARMBuildAttrs::CPU_name: 89c046d64f1b5f19cb06616e519a45bc4b0693f9d3Jason W Kim Streamer.EmitRawText(StringRef("\t.cpu ") + LowercaseString(String)); 90f009a961caa75465999ef3bc764984d97a7da331Jason W Kim break; 91728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* GAS requires .fpu to be emitted regardless of EABI attribute */ 92728ff0db783152ed4f21f7746bd7874b49708172Renato Golin case ARMBuildAttrs::Advanced_SIMD_arch: 93728ff0db783152ed4f21f7746bd7874b49708172Renato Golin case ARMBuildAttrs::VFP_arch: 94728ff0db783152ed4f21f7746bd7874b49708172Renato Golin Streamer.EmitRawText(StringRef("\t.fpu ") + LowercaseString(String)); 95728ff0db783152ed4f21f7746bd7874b49708172Renato Golin break; 96f009a961caa75465999ef3bc764984d97a7da331Jason W Kim default: assert(0 && "Unsupported Text attribute in ASM Mode"); break; 97f009a961caa75465999ef3bc764984d97a7da331Jason W Kim } 98f009a961caa75465999ef3bc764984d97a7da331Jason W Kim } 99cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void Finish() { } 100cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola }; 101cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 102cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola class ObjectAttributeEmitter : public AttributeEmitter { 103cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola MCObjectStreamer &Streamer; 104cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola StringRef CurrentVendor; 105cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola SmallString<64> Contents; 106cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 107cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola public: 108cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola ObjectAttributeEmitter(MCObjectStreamer &Streamer_) : 109cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Streamer(Streamer_), CurrentVendor("") { } 110cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 111cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void MaybeSwitchVendor(StringRef Vendor) { 112cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola assert(!Vendor.empty() && "Vendor cannot be empty."); 113cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 114cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola if (CurrentVendor.empty()) 115cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola CurrentVendor = Vendor; 116cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola else if (CurrentVendor == Vendor) 117cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola return; 118cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola else 119cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Finish(); 120cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 121cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola CurrentVendor = Vendor; 122cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 1233336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola assert(Contents.size() == 0); 124cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 125cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 126cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void EmitAttribute(unsigned Attribute, unsigned Value) { 127cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // FIXME: should be ULEB 128cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Contents += Attribute; 129cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Contents += Value; 130cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 131cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 132f009a961caa75465999ef3bc764984d97a7da331Jason W Kim void EmitTextAttribute(unsigned Attribute, StringRef String) { 133f009a961caa75465999ef3bc764984d97a7da331Jason W Kim Contents += Attribute; 134c046d64f1b5f19cb06616e519a45bc4b0693f9d3Jason W Kim Contents += UppercaseString(String); 135f009a961caa75465999ef3bc764984d97a7da331Jason W Kim Contents += 0; 136f009a961caa75465999ef3bc764984d97a7da331Jason W Kim } 137f009a961caa75465999ef3bc764984d97a7da331Jason W Kim 138cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void Finish() { 1393336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola const size_t ContentsSize = Contents.size(); 1403336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola 1413336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola // Vendor size + Vendor name + '\0' 1423336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola const size_t VendorHeaderSize = 4 + CurrentVendor.size() + 1; 143cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 1443336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola // Tag + Tag Size 1453336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola const size_t TagHeaderSize = 1 + 4; 146cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 1473336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitIntValue(VendorHeaderSize + TagHeaderSize + ContentsSize, 4); 1483336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitBytes(CurrentVendor, 0); 1493336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitIntValue(0, 1); // '\0' 1503336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola 1513336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitIntValue(ARMBuildAttrs::File, 1); 1523336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitIntValue(TagHeaderSize + ContentsSize, 4); 153cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 154cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Streamer.EmitBytes(Contents, 0); 1553336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola 1563336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Contents.clear(); 157cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 158cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola }; 159cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 1607bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola} // end of anonymous namespace 1617bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 162baf120fbe8056ef68fc91b16465590fdf2311c27Jim GrosbachMachineLocation ARMAsmPrinter:: 163baf120fbe8056ef68fc91b16465590fdf2311c27Jim GrosbachgetDebugValueLocation(const MachineInstr *MI) const { 164baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach MachineLocation Location; 165baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach assert(MI->getNumOperands() == 4 && "Invalid no. of machine operands!"); 166baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach // Frame address. Currently handles register +- offset only. 167baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach if (MI->getOperand(0).isReg() && MI->getOperand(1).isImm()) 168baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach Location.set(MI->getOperand(0).getReg(), MI->getOperand(1).getImm()); 169baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach else { 170baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach DEBUG(dbgs() << "DBG_VALUE instruction ignored! " << *MI << "\n"); 171baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach } 172baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach return Location; 173baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach} 174baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach 17527f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel/// EmitDwarfRegOp - Emit dwarf register operation. 1760be77dff1147488814b8eea6ec8619f56e3d9f5eDevang Patelvoid ARMAsmPrinter::EmitDwarfRegOp(const MachineLocation &MLoc) const { 17727f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel const TargetRegisterInfo *RI = TM.getRegisterInfo(); 17827f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel if (RI->getDwarfRegNum(MLoc.getReg(), false) != -1) 1790be77dff1147488814b8eea6ec8619f56e3d9f5eDevang Patel AsmPrinter::EmitDwarfRegOp(MLoc); 18027f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel else { 18127f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel unsigned Reg = MLoc.getReg(); 18227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel if (Reg >= ARM::S0 && Reg <= ARM::S31) { 1830a6ea83f393d06fb424c470777a1c3e8a8c50ab1Devang Patel assert(ARM::S0 + 31 == ARM::S31 && "Unexpected ARM S register numbering"); 18427f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel // S registers are described as bit-pieces of a register 18527f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel // S[2x] = DW_OP_regx(256 + (x>>1)) DW_OP_bit_piece(32, 0) 18627f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel // S[2x+1] = DW_OP_regx(256 + (x>>1)) DW_OP_bit_piece(32, 32) 18727f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 18827f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel unsigned SReg = Reg - ARM::S0; 18927f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel bool odd = SReg & 0x1; 19027f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel unsigned Rx = 256 + (SReg >> 1); 19127f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment("Loc expr size"); 19227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel // DW_OP_regx + ULEB + DW_OP_bit_piece + ULEB + ULEB 19327f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel // 1 + ULEB(Rx) + 1 + 1 + 1 1940be77dff1147488814b8eea6ec8619f56e3d9f5eDevang Patel EmitInt16(4 + MCAsmInfo::getULEB128Size(Rx)); 19527f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 19627f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment("DW_OP_regx for S register"); 19727f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitInt8(dwarf::DW_OP_regx); 19827f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 19927f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment(Twine(SReg)); 20027f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(Rx); 20127f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 20227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel if (odd) { 20327f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment("DW_OP_bit_piece 32 32"); 20427f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitInt8(dwarf::DW_OP_bit_piece); 20527f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(32); 20627f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(32); 20727f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel } else { 20827f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment("DW_OP_bit_piece 32 0"); 20927f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitInt8(dwarf::DW_OP_bit_piece); 21027f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(32); 21127f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(0); 21227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel } 21371f3f1146f2ba2773f0467767b67c12258960f34Devang Patel } else if (Reg >= ARM::Q0 && Reg <= ARM::Q15) { 2140a6ea83f393d06fb424c470777a1c3e8a8c50ab1Devang Patel assert(ARM::Q0 + 15 == ARM::Q15 && "Unexpected ARM Q register numbering"); 21571f3f1146f2ba2773f0467767b67c12258960f34Devang Patel // Q registers Q0-Q15 are described by composing two D registers together. 21671f3f1146f2ba2773f0467767b67c12258960f34Devang Patel // Qx = DW_OP_regx(256+2x) DW_OP_piece(8) DW_OP_regx(256+2x+1) DW_OP_piece(8) 21771f3f1146f2ba2773f0467767b67c12258960f34Devang Patel 21871f3f1146f2ba2773f0467767b67c12258960f34Devang Patel unsigned QReg = Reg - ARM::Q0; 21971f3f1146f2ba2773f0467767b67c12258960f34Devang Patel unsigned D1 = 256 + 2 * QReg; 22071f3f1146f2ba2773f0467767b67c12258960f34Devang Patel unsigned D2 = D1 + 1; 22171f3f1146f2ba2773f0467767b67c12258960f34Devang Patel 22271f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("Loc expr size"); 22371f3f1146f2ba2773f0467767b67c12258960f34Devang Patel // DW_OP_regx + ULEB + DW_OP_piece + ULEB(8) + 22471f3f1146f2ba2773f0467767b67c12258960f34Devang Patel // DW_OP_regx + ULEB + DW_OP_piece + ULEB(8); 22571f3f1146f2ba2773f0467767b67c12258960f34Devang Patel // 6 + ULEB(D1) + ULEB(D2) 2260be77dff1147488814b8eea6ec8619f56e3d9f5eDevang Patel EmitInt16(6 + MCAsmInfo::getULEB128Size(D1) + MCAsmInfo::getULEB128Size(D2)); 22771f3f1146f2ba2773f0467767b67c12258960f34Devang Patel 22871f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("DW_OP_regx for Q register: D1"); 22971f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitInt8(dwarf::DW_OP_regx); 23071f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitULEB128(D1); 23171f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("DW_OP_piece 8"); 23271f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitInt8(dwarf::DW_OP_piece); 23371f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitULEB128(8); 23471f3f1146f2ba2773f0467767b67c12258960f34Devang Patel 23571f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("DW_OP_regx for Q register: D2"); 23671f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitInt8(dwarf::DW_OP_regx); 23771f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitULEB128(D2); 23871f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("DW_OP_piece 8"); 23971f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitInt8(dwarf::DW_OP_piece); 24071f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitULEB128(8); 24127f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel } 24227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel } 24327f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel} 24427f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 245953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattnervoid ARMAsmPrinter::EmitFunctionEntryLabel() { 246953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner if (AFI->isThumbFunction()) { 247ce79299f78bb04e76e1860ab119b85d69f3a19c7Jim Grosbach OutStreamer.EmitAssemblerFlag(MCAF_Code16); 248ce79299f78bb04e76e1860ab119b85d69f3a19c7Jim Grosbach OutStreamer.EmitThumbFunc(Subtarget->isTargetDarwin()? CurrentFnSym : 0); 249953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner } 250b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 251953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner OutStreamer.EmitLabel(CurrentFnSym); 252953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner} 253953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner 2542317e40539aac11da00bd587b5f0def04d989769Jim Grosbach/// runOnMachineFunction - This uses the EmitInstruction() 2557bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola/// method to print assembly for each instruction. 2567bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola/// 2577bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindolabool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) { 258a8e2989ece6dc46df59b0768184028257f913843Evan Cheng AFI = MF.getInfo<ARMFunctionInfo>(); 2596d63a728586d56eb3e881905beb9db27f520f5d3Evan Cheng MCP = MF.getConstantPool(); 260a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 261d49fe1b6bc4615684c2ec71140a21e9c4cd69ce3Chris Lattner return AsmPrinter::runOnMachineFunction(MF); 26232bd5f4f6a374f9ab0fcbd2cf6a8561019a6fd56Rafael Espindola} 26332bd5f4f6a374f9ab0fcbd2cf6a8561019a6fd56Rafael Espindola 264055b0310f862b91f33699037ce67d3ab8137c20cEvan Chengvoid ARMAsmPrinter::printOperand(const MachineInstr *MI, int OpNum, 26535c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner raw_ostream &O, const char *Modifier) { 266055b0310f862b91f33699037ce67d3ab8137c20cEvan Cheng const MachineOperand &MO = MI->getOperand(OpNum); 2675cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov unsigned TF = MO.getTargetFlags(); 2685cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 2692f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola switch (MO.getType()) { 2708bc86cba60fbb35fbfb52cc32b9e451e6b903a27Chris Lattner default: 2718bc86cba60fbb35fbfb52cc32b9e451e6b903a27Chris Lattner assert(0 && "<unknown operand type>"); 2725bafff36c798608a189c517d37527e4a38863071Bob Wilson case MachineOperand::MO_Register: { 2735bafff36c798608a189c517d37527e4a38863071Bob Wilson unsigned Reg = MO.getReg(); 2748bc86cba60fbb35fbfb52cc32b9e451e6b903a27Chris Lattner assert(TargetRegisterInfo::isPhysicalRegister(Reg)); 27535636281c7ab6eb128b4ced6bf7ae0b6b8458dd2Jim Grosbach assert(!MO.getSubReg() && "Subregs should be eliminated!"); 27635636281c7ab6eb128b4ced6bf7ae0b6b8458dd2Jim Grosbach O << ARMInstPrinter::getRegisterName(Reg); 2772f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 2785bafff36c798608a189c517d37527e4a38863071Bob Wilson } 279a8e2989ece6dc46df59b0768184028257f913843Evan Cheng case MachineOperand::MO_Immediate: { 2805adb66a646e2ec32265263739f5b01c3f50c176aEvan Cheng int64_t Imm = MO.getImm(); 281632606c724ebcfa6a9da71c443151e7a65829c99Anton Korobeynikov O << '#'; 2825cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov if ((Modifier && strcmp(Modifier, "lo16") == 0) || 283650b7d76afbc7db2dd1a4590149d50a162bb25d8Jason W Kim (TF == ARMII::MO_LO16)) 2845cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov O << ":lower16:"; 2855cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov else if ((Modifier && strcmp(Modifier, "hi16") == 0) || 286650b7d76afbc7db2dd1a4590149d50a162bb25d8Jason W Kim (TF == ARMII::MO_HI16)) 2875cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov O << ":upper16:"; 288632606c724ebcfa6a9da71c443151e7a65829c99Anton Korobeynikov O << Imm; 2892f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 290a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 2912f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola case MachineOperand::MO_MachineBasicBlock: 2921b2eb0e8a6aaf034675b17be6d853cb1c666200fChris Lattner O << *MO.getMBB()->getSymbol(); 2932f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola return; 29484b19be6ab9544f72eafb11048a1121f5ea77c95Rafael Espindola case MachineOperand::MO_GlobalAddress: { 29546510a73e977273ec67747eb34cbdb43f815e451Dan Gohman const GlobalValue *GV = MO.getGlobal(); 2965cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov if ((Modifier && strcmp(Modifier, "lo16") == 0) || 2975cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov (TF & ARMII::MO_LO16)) 2985cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov O << ":lower16:"; 2995cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov else if ((Modifier && strcmp(Modifier, "hi16") == 0) || 3005cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov (TF & ARMII::MO_HI16)) 3015cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov O << ":upper16:"; 302d62f1b4168d4327c119642d28c26c836ae6717abChris Lattner O << *Mang->getSymbol(GV); 3037751ad92daeea5a3502fbc266ae814baec5c03e6Anton Korobeynikov 3040c08d092049c025c9ccf7143e39f39dc4e30d6b4Chris Lattner printOffset(MO.getOffset(), O); 3051d6111c5ac97c321782637b2cd72e2c3e4d3d694Jim Grosbach if (TF == ARMII::MO_PLT) 3060ae4a3357a556261f25b1584a2d9914637c69e65Lauro Ramos Venancio O << "(PLT)"; 3072f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 308a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 309a8e2989ece6dc46df59b0768184028257f913843Evan Cheng case MachineOperand::MO_ExternalSymbol: { 31010b318bcb39218d2ed525e4862c854bc8d1baf63Chris Lattner O << *GetExternalSymbolSymbol(MO.getSymbolName()); 3111d6111c5ac97c321782637b2cd72e2c3e4d3d694Jim Grosbach if (TF == ARMII::MO_PLT) 3120ae4a3357a556261f25b1584a2d9914637c69e65Lauro Ramos Venancio O << "(PLT)"; 3132f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 314a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 3152f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola case MachineOperand::MO_ConstantPoolIndex: 3161b46f433e02155daba8ed3b1269c86ce63c9713bChris Lattner O << *GetCPISymbol(MO.getIndex()); 3172f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 318a8e2989ece6dc46df59b0768184028257f913843Evan Cheng case MachineOperand::MO_JumpTableIndex: 3191b46f433e02155daba8ed3b1269c86ce63c9713bChris Lattner O << *GetJTISymbol(MO.getIndex()); 320a8e2989ece6dc46df59b0768184028257f913843Evan Cheng break; 3212f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola } 3227bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola} 3237bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 324055b0310f862b91f33699037ce67d3ab8137c20cEvan Cheng//===--------------------------------------------------------------------===// 325055b0310f862b91f33699037ce67d3ab8137c20cEvan Cheng 3260890cf124f00da3dc943c1882f4221955e0281edChris LattnerMCSymbol *ARMAsmPrinter:: 3270890cf124f00da3dc943c1882f4221955e0281edChris LattnerGetARMSetPICJumpTableLabel2(unsigned uid, unsigned uid2, 3280890cf124f00da3dc943c1882f4221955e0281edChris Lattner const MachineBasicBlock *MBB) const { 3290890cf124f00da3dc943c1882f4221955e0281edChris Lattner SmallString<60> Name; 3300890cf124f00da3dc943c1882f4221955e0281edChris Lattner raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() 331bfcb09688c7db15a9f9415d717a5a31c499a2208Chris Lattner << getFunctionNumber() << '_' << uid << '_' << uid2 3320890cf124f00da3dc943c1882f4221955e0281edChris Lattner << "_set_" << MBB->getNumber(); 3339b97a73dedf736e14b04a3d1a153f10d25b2507bChris Lattner return OutContext.GetOrCreateSymbol(Name.str()); 3340890cf124f00da3dc943c1882f4221955e0281edChris Lattner} 3350890cf124f00da3dc943c1882f4221955e0281edChris Lattner 3360890cf124f00da3dc943c1882f4221955e0281edChris LattnerMCSymbol *ARMAsmPrinter:: 3370890cf124f00da3dc943c1882f4221955e0281edChris LattnerGetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const { 3380890cf124f00da3dc943c1882f4221955e0281edChris Lattner SmallString<60> Name; 3390890cf124f00da3dc943c1882f4221955e0281edChris Lattner raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "JTI" 340281e7767df71b3f727ade80a16ff0c4fe5a49dd9Chris Lattner << getFunctionNumber() << '_' << uid << '_' << uid2; 3419b97a73dedf736e14b04a3d1a153f10d25b2507bChris Lattner return OutContext.GetOrCreateSymbol(Name.str()); 342bfcb09688c7db15a9f9415d717a5a31c499a2208Chris Lattner} 343bfcb09688c7db15a9f9415d717a5a31c499a2208Chris Lattner 344433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach 345433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim GrosbachMCSymbol *ARMAsmPrinter::GetARMSJLJEHLabel(void) const { 346433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach SmallString<60> Name; 347433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "SJLJEH" 348433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach << getFunctionNumber(); 349433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach return OutContext.GetOrCreateSymbol(Name.str()); 350433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach} 351433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach 352055b0310f862b91f33699037ce67d3ab8137c20cEvan Chengbool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum, 353c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner unsigned AsmVariant, const char *ExtraCode, 354c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner raw_ostream &O) { 355a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // Does this asm operand have a single letter operand modifier? 356a8e2989ece6dc46df59b0768184028257f913843Evan Cheng if (ExtraCode && ExtraCode[0]) { 357a8e2989ece6dc46df59b0768184028257f913843Evan Cheng if (ExtraCode[1] != 0) return true; // Unknown modifier. 3588e9ece75db5045ec057efbbdba6550fa0d85e695Anton Korobeynikov 359a8e2989ece6dc46df59b0768184028257f913843Evan Cheng switch (ExtraCode[0]) { 360a8e2989ece6dc46df59b0768184028257f913843Evan Cheng default: return true; // Unknown modifier. 3619b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson case 'a': // Print as a memory address. 3629b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson if (MI->getOperand(OpNum).isReg()) { 3632f24c4ece09f1157c5cb29357d91d2a0d77eb57cJim Grosbach O << "[" 3642f24c4ece09f1157c5cb29357d91d2a0d77eb57cJim Grosbach << ARMInstPrinter::getRegisterName(MI->getOperand(OpNum).getReg()) 3652f24c4ece09f1157c5cb29357d91d2a0d77eb57cJim Grosbach << "]"; 3669b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson return false; 3679b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson } 3689b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson // Fallthrough 3699b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson case 'c': // Don't print "#" before an immediate operand. 3704f38b383d5089c49489a9a56d8efd0eb76048b3fBob Wilson if (!MI->getOperand(OpNum).isImm()) 3714f38b383d5089c49489a9a56d8efd0eb76048b3fBob Wilson return true; 3722317e40539aac11da00bd587b5f0def04d989769Jim Grosbach O << MI->getOperand(OpNum).getImm(); 3738f3434647d3d39b49475239e3be1b8afb06415cfBob Wilson return false; 374e21e39666e8a41ffd4971d8bb023b70b59297267Evan Cheng case 'P': // Print a VFP double precision register. 375d831cda3e74235704f163d5a18352584d537517aEvan Cheng case 'q': // Print a NEON quad precision register. 37635c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner printOperand(MI, OpNum, O); 37723a95704949b99ca07afe45c6946d0fa26baf9f3Evan Cheng return false; 378a8e2989ece6dc46df59b0768184028257f913843Evan Cheng case 'Q': 379a8e2989ece6dc46df59b0768184028257f913843Evan Cheng case 'R': 380d984eb6073d5445f08fb0cea67a668b1b5e888e0Bob Wilson case 'H': 3819bb43e167576d464637c480eccc5696e01e1887cBob Wilson // These modifiers are not yet supported. 382d984eb6073d5445f08fb0cea67a668b1b5e888e0Bob Wilson return true; 38384f60b7359e1aa90794bb19de2bbf4d25dc2f01dEvan Cheng } 384a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 385e9952213086c865eb678bd3f4c9c7d849f0249d2Jim Grosbach 38635c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner printOperand(MI, OpNum, O); 387a8e2989ece6dc46df59b0768184028257f913843Evan Cheng return false; 388a8e2989ece6dc46df59b0768184028257f913843Evan Cheng} 389a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 390224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilsonbool ARMAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, 391055b0310f862b91f33699037ce67d3ab8137c20cEvan Cheng unsigned OpNum, unsigned AsmVariant, 392c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner const char *ExtraCode, 393c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner raw_ostream &O) { 394224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilson if (ExtraCode && ExtraCode[0]) 395224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilson return true; // Unknown modifier. 396765cc0b9d59bf63dfcb02e3d126ea1c63e16f86fBob Wilson 397765cc0b9d59bf63dfcb02e3d126ea1c63e16f86fBob Wilson const MachineOperand &MO = MI->getOperand(OpNum); 398765cc0b9d59bf63dfcb02e3d126ea1c63e16f86fBob Wilson assert(MO.isReg() && "unexpected inline asm memory operand"); 3992317e40539aac11da00bd587b5f0def04d989769Jim Grosbach O << "[" << ARMInstPrinter::getRegisterName(MO.getReg()) << "]"; 400224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilson return false; 401224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilson} 402224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilson 403812209a58c5520c604bc9279aa069e5ae066e860Bob Wilsonvoid ARMAsmPrinter::EmitStartOfAsmFile(Module &M) { 4040fb34683b9e33238288d2af1e090582464df8387Bob Wilson if (Subtarget->isTargetDarwin()) { 4050fb34683b9e33238288d2af1e090582464df8387Bob Wilson Reloc::Model RelocM = TM.getRelocationModel(); 4060fb34683b9e33238288d2af1e090582464df8387Bob Wilson if (RelocM == Reloc::PIC_ || RelocM == Reloc::DynamicNoPIC) { 4070fb34683b9e33238288d2af1e090582464df8387Bob Wilson // Declare all the text sections up front (before the DWARF sections 4080fb34683b9e33238288d2af1e090582464df8387Bob Wilson // emitted by AsmPrinter::doInitialization) so the assembler will keep 4090fb34683b9e33238288d2af1e090582464df8387Bob Wilson // them together at the beginning of the object file. This helps 4100fb34683b9e33238288d2af1e090582464df8387Bob Wilson // avoid out-of-range branches that are due a fundamental limitation of 4110fb34683b9e33238288d2af1e090582464df8387Bob Wilson // the way symbol offsets are encoded with the current Darwin ARM 4120fb34683b9e33238288d2af1e090582464df8387Bob Wilson // relocations. 413b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach const TargetLoweringObjectFileMachO &TLOFMacho = 4140d805c33d134d88169e3dc4a3272cff9a5713ce7Dan Gohman static_cast<const TargetLoweringObjectFileMachO &>( 4150d805c33d134d88169e3dc4a3272cff9a5713ce7Dan Gohman getObjFileLowering()); 41629e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson OutStreamer.SwitchSection(TLOFMacho.getTextSection()); 41729e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson OutStreamer.SwitchSection(TLOFMacho.getTextCoalSection()); 41829e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson OutStreamer.SwitchSection(TLOFMacho.getConstTextCoalSection()); 41929e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson if (RelocM == Reloc::DynamicNoPIC) { 42029e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson const MCSection *sect = 42122772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner OutContext.getMachOSection("__TEXT", "__symbol_stub4", 42222772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner MCSectionMachO::S_SYMBOL_STUBS, 42322772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner 12, SectionKind::getText()); 42429e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson OutStreamer.SwitchSection(sect); 42529e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson } else { 42629e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson const MCSection *sect = 42722772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner OutContext.getMachOSection("__TEXT", "__picsymbolstub4", 42822772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner MCSectionMachO::S_SYMBOL_STUBS, 42922772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner 16, SectionKind::getText()); 43029e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson OutStreamer.SwitchSection(sect); 43129e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson } 43263db594559dc8eac666204c7907bae664f5234daBob Wilson const MCSection *StaticInitSect = 43363db594559dc8eac666204c7907bae664f5234daBob Wilson OutContext.getMachOSection("__TEXT", "__StaticInit", 43463db594559dc8eac666204c7907bae664f5234daBob Wilson MCSectionMachO::S_REGULAR | 43563db594559dc8eac666204c7907bae664f5234daBob Wilson MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS, 43663db594559dc8eac666204c7907bae664f5234daBob Wilson SectionKind::getText()); 43763db594559dc8eac666204c7907bae664f5234daBob Wilson OutStreamer.SwitchSection(StaticInitSect); 4380fb34683b9e33238288d2af1e090582464df8387Bob Wilson } 4390fb34683b9e33238288d2af1e090582464df8387Bob Wilson } 4400fb34683b9e33238288d2af1e090582464df8387Bob Wilson 441e5165490b7ba24bb2f3043399e0d60e7f3bcf8a5Jim Grosbach // Use unified assembler syntax. 442afd1cc25786f68ca56a63d29ea2bd297990e9f81Jason W Kim OutStreamer.EmitAssemblerFlag(MCAF_SyntaxUnified); 443d61eca533081580d56fabee38f86507d8019ca75Anton Korobeynikov 44488ce667003a33e008d9ecc6811584681787e8150Anton Korobeynikov // Emit ARM Build Attributes 44588ce667003a33e008d9ecc6811584681787e8150Anton Korobeynikov if (Subtarget->isTargetELF()) { 446b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 447def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim emitAttributes(); 44888ce667003a33e008d9ecc6811584681787e8150Anton Korobeynikov } 4497bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola} 4507bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 4510f3cc657387d44cd7c56e4ddea896a50ab9106b8Anton Korobeynikov 4524a071d667d995b00e7853243ff9c7c1269324478Chris Lattnervoid ARMAsmPrinter::EmitEndOfAsmFile(Module &M) { 4535be54b00bdbe1abd02dde46ca2c4b0e5aaf7b537Evan Cheng if (Subtarget->isTargetDarwin()) { 454f61159b574155b056dbd5d6d44f47f753d424056Chris Lattner // All darwin targets use mach-o. 4550d805c33d134d88169e3dc4a3272cff9a5713ce7Dan Gohman const TargetLoweringObjectFileMachO &TLOFMacho = 4560d805c33d134d88169e3dc4a3272cff9a5713ce7Dan Gohman static_cast<const TargetLoweringObjectFileMachO &>(getObjFileLowering()); 457b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner MachineModuleInfoMachO &MMIMacho = 458b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner MMI->getObjFileInfo<MachineModuleInfoMachO>(); 459e9952213086c865eb678bd3f4c9c7d849f0249d2Jim Grosbach 460a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // Output non-lazy-pointers for external and common global variables. 461b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner MachineModuleInfoMachO::SymbolListTy Stubs = MMIMacho.GetGVStubList(); 462cebae36f57456fe6b0e13726acd1e0250654f02dBill Wendling 463b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner if (!Stubs.empty()) { 464ff4bc460c52c1f285d8a56da173641bf92d49e3fChris Lattner // Switch with ".non_lazy_symbol_pointer" directive. 4656c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner OutStreamer.SwitchSection(TLOFMacho.getNonLazySymbolPointerSection()); 466c076a9793936b140364671a5e39ee53bd266c6c3Chris Lattner EmitAlignment(2); 467b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner for (unsigned i = 0, e = Stubs.size(); i != e; ++i) { 468becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling // L_foo$stub: 469becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling OutStreamer.EmitLabel(Stubs[i].first); 470becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling // .indirect_symbol _foo 47152a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling MachineModuleInfoImpl::StubValueTy &MCSym = Stubs[i].second; 47252a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling OutStreamer.EmitSymbolAttribute(MCSym.getPointer(),MCSA_IndirectSymbol); 473cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling 47452a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling if (MCSym.getInt()) 475cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling // External to current translation unit. 476cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling OutStreamer.EmitIntValue(0, 4/*size*/, 0/*addrspace*/); 477cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling else 478cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling // Internal to current translation unit. 4795e1b55d67288874f8669621b9176814ce449f8f5Bill Wendling // 4801b935a3d2e2619c7de2488163fc1501285b53fa3Jim Grosbach // When we place the LSDA into the TEXT section, the type info 4811b935a3d2e2619c7de2488163fc1501285b53fa3Jim Grosbach // pointers need to be indirect and pc-rel. We accomplish this by 4821b935a3d2e2619c7de2488163fc1501285b53fa3Jim Grosbach // using NLPs; however, sometimes the types are local to the file. 4831b935a3d2e2619c7de2488163fc1501285b53fa3Jim Grosbach // We need to fill in the value for the NLP in those cases. 48452a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling OutStreamer.EmitValue(MCSymbolRefExpr::Create(MCSym.getPointer(), 48552a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling OutContext), 486cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling 4/*size*/, 0/*addrspace*/); 487ae94e594164b193236002516970aeec4c4574768Evan Cheng } 488becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling 489becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling Stubs.clear(); 490becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling OutStreamer.AddBlankLine(); 491a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 492a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 493e4d9ea83c0d4bcc535bd978e1afa599eb3ebb893Chris Lattner Stubs = MMIMacho.GetHiddenGVStubList(); 494e4d9ea83c0d4bcc535bd978e1afa599eb3ebb893Chris Lattner if (!Stubs.empty()) { 4956c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner OutStreamer.SwitchSection(getObjFileLowering().getDataSection()); 496f3231de60bb64c3f6fc6770b3e6174f4f839a4f3Chris Lattner EmitAlignment(2); 497becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling for (unsigned i = 0, e = Stubs.size(); i != e; ++i) { 498becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling // L_foo$stub: 499becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling OutStreamer.EmitLabel(Stubs[i].first); 500becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling // .long _foo 501cebae36f57456fe6b0e13726acd1e0250654f02dBill Wendling OutStreamer.EmitValue(MCSymbolRefExpr:: 502cebae36f57456fe6b0e13726acd1e0250654f02dBill Wendling Create(Stubs[i].second.getPointer(), 503cebae36f57456fe6b0e13726acd1e0250654f02dBill Wendling OutContext), 504becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling 4/*size*/, 0/*addrspace*/); 505becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling } 506cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling 507cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling Stubs.clear(); 508cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling OutStreamer.AddBlankLine(); 509ae94e594164b193236002516970aeec4c4574768Evan Cheng } 510ae94e594164b193236002516970aeec4c4574768Evan Cheng 511a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // Funny Darwin hack: This flag tells the linker that no global symbols 512a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // contain code that falls through to other global symbols (e.g. the obvious 513a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // implementation of multiple entry points). If this doesn't occur, the 514a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // linker can safely perform dead code stripping. Since LLVM never 515a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // generates code that does this, it is always safe to set. 516a5ad93a10a5435f21090b09edb6b3a7e44967648Chris Lattner OutStreamer.EmitAssemblerFlag(MCAF_SubsectionsViaSymbols); 517b01c4bbb4573e0007444e218b683840e4519e0c8Rafael Espindola } 5187bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola} 5190bd89712c03c59ea43ce37763685e7f7c0bdd977Anton Korobeynikov 52097f06937449c593a248dbbb1365e6ae408fb9decChris Lattner//===----------------------------------------------------------------------===// 521def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim// Helper routines for EmitStartOfAsmFile() and EmitEndOfAsmFile() 522def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim// FIXME: 523def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim// The following seem like one-off assembler flags, but they actually need 524fa7fb64fad0e46e7329e4ba84a1edec5e979c31aJim Grosbach// to appear in the .ARM.attributes section in ELF. 525def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim// Instead of subclassing the MCELFStreamer, we do the work here. 526def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 527def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kimvoid ARMAsmPrinter::emitAttributes() { 528fa7fb64fad0e46e7329e4ba84a1edec5e979c31aJim Grosbach 52917b443df4368acfad853d09858c033c45c468d5cJason W Kim emitARMAttributeSection(); 53017b443df4368acfad853d09858c033c45c468d5cJason W Kim 531728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* GAS expect .fpu to be emitted, regardless of VFP build attribute */ 532728ff0db783152ed4f21f7746bd7874b49708172Renato Golin bool emitFPU = false; 533cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttributeEmitter *AttrEmitter; 534728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (OutStreamer.hasRawTextSupport()) { 535cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter = new AsmAttributeEmitter(OutStreamer); 536728ff0db783152ed4f21f7746bd7874b49708172Renato Golin emitFPU = true; 537728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } else { 538cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola MCObjectStreamer &O = static_cast<MCObjectStreamer&>(OutStreamer); 539cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter = new ObjectAttributeEmitter(O); 540cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 541cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 542cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->MaybeSwitchVendor("aeabi"); 543cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 544def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim std::string CPUString = Subtarget->getCPUString(); 545f009a961caa75465999ef3bc764984d97a7da331Jason W Kim 546f009a961caa75465999ef3bc764984d97a7da331Jason W Kim if (CPUString == "cortex-a8" || 547f009a961caa75465999ef3bc764984d97a7da331Jason W Kim Subtarget->isCortexA8()) { 548c046d64f1b5f19cb06616e519a45bc4b0693f9d3Jason W Kim AttrEmitter->EmitTextAttribute(ARMBuildAttrs::CPU_name, "cortex-a8"); 549f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v7); 550f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch_profile, 551f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::ApplicationProfile); 552f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ARM_ISA_use, 553f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 554f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::THUMB_ISA_use, 555f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::AllowThumb32); 556f009a961caa75465999ef3bc764984d97a7da331Jason W Kim // Fixme: figure out when this is emitted. 557f009a961caa75465999ef3bc764984d97a7da331Jason W Kim //AttrEmitter->EmitAttribute(ARMBuildAttrs::WMMX_arch, 558f009a961caa75465999ef3bc764984d97a7da331Jason W Kim // ARMBuildAttrs::AllowWMMXv1); 559f009a961caa75465999ef3bc764984d97a7da331Jason W Kim // 560f009a961caa75465999ef3bc764984d97a7da331Jason W Kim 561f009a961caa75465999ef3bc764984d97a7da331Jason W Kim /// ADD additional Else-cases here! 562f009a961caa75465999ef3bc764984d97a7da331Jason W Kim } else if (CPUString == "generic") { 5637179d1e5c0acfbb0980eaf85f266cd8981dbd12dDale Johannesen // FIXME: Why these defaults? 5647179d1e5c0acfbb0980eaf85f266cd8981dbd12dDale Johannesen AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v4T); 565f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ARM_ISA_use, 566f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 567f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::THUMB_ISA_use, 568f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 569cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 570def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 571e89a05337a9946040251a5f19165c41b9a1a7b27Renato Golin if (Subtarget->hasNEON() && emitFPU) { 572728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* NEON is not exactly a VFP architecture, but GAS emit one of 573728ff0db783152ed4f21f7746bd7874b49708172Renato Golin * neon/vfpv3/vfpv2 for .fpu parameters */ 574728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitTextAttribute(ARMBuildAttrs::Advanced_SIMD_arch, "neon"); 575728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* If emitted for NEON, omit from VFP below, since you can have both 576728ff0db783152ed4f21f7746bd7874b49708172Renato Golin * NEON and VFP in build attributes but only one .fpu */ 577728ff0db783152ed4f21f7746bd7874b49708172Renato Golin emitFPU = false; 578728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } 579728ff0db783152ed4f21f7746bd7874b49708172Renato Golin 580728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* VFPv3 + .fpu */ 581728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (Subtarget->hasVFP3()) { 582728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch, 583728ff0db783152ed4f21f7746bd7874b49708172Renato Golin ARMBuildAttrs::AllowFPv3A); 584728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (emitFPU) 585728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "vfpv3"); 586728ff0db783152ed4f21f7746bd7874b49708172Renato Golin 587728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* VFPv2 + .fpu */ 588728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } else if (Subtarget->hasVFP2()) { 589f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch, 590f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::AllowFPv2); 591728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (emitFPU) 592728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "vfpv2"); 593728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } 594728ff0db783152ed4f21f7746bd7874b49708172Renato Golin 595728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* TODO: ARMBuildAttrs::Allowed is not completely accurate, 596728ff0db783152ed4f21f7746bd7874b49708172Renato Golin * since NEON can have 1 (allowed) or 2 (fused MAC operations) */ 597728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (Subtarget->hasNEON()) { 598728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitAttribute(ARMBuildAttrs::Advanced_SIMD_arch, 599728ff0db783152ed4f21f7746bd7874b49708172Renato Golin ARMBuildAttrs::Allowed); 600728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } 601def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 602def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim // Signal various FP modes. 603def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim if (!UnsafeFPMath) { 604f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_FP_denormal, 605f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 606f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_FP_exceptions, 607f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 608def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim } 609def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 610def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim if (NoInfsFPMath && NoNaNsFPMath) 611f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_FP_number_model, 612f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 613def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim else 614f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_FP_number_model, 615f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::AllowIEE754); 616def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 617f009a961caa75465999ef3bc764984d97a7da331Jason W Kim // FIXME: add more flags to ARMBuildAttrs.h 618def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim // 8-bytes alignment stuff. 619cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_align8_needed, 1); 620cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_align8_preserved, 1); 621def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 622def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim // Hard float. Use both S and D registers and conform to AAPCS-VFP. 623def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim if (Subtarget->isAAPCS_ABI() && FloatABIType == FloatABI::Hard) { 624cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_HardFP_use, 3); 625cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_VFP_args, 1); 626def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim } 627def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim // FIXME: Should we signal R9 usage? 628cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 629f009a961caa75465999ef3bc764984d97a7da331Jason W Kim if (Subtarget->hasDivide()) 630f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::DIV_use, 1); 631cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 632cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->Finish(); 633cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola delete AttrEmitter; 634def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim} 635def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 63617b443df4368acfad853d09858c033c45c468d5cJason W Kimvoid ARMAsmPrinter::emitARMAttributeSection() { 63717b443df4368acfad853d09858c033c45c468d5cJason W Kim // <format-version> 63817b443df4368acfad853d09858c033c45c468d5cJason W Kim // [ <section-length> "vendor-name" 63917b443df4368acfad853d09858c033c45c468d5cJason W Kim // [ <file-tag> <size> <attribute>* 64017b443df4368acfad853d09858c033c45c468d5cJason W Kim // | <section-tag> <size> <section-number>* 0 <attribute>* 64117b443df4368acfad853d09858c033c45c468d5cJason W Kim // | <symbol-tag> <size> <symbol-number>* 0 <attribute>* 64217b443df4368acfad853d09858c033c45c468d5cJason W Kim // ]+ 64317b443df4368acfad853d09858c033c45c468d5cJason W Kim // ]* 64417b443df4368acfad853d09858c033c45c468d5cJason W Kim 64517b443df4368acfad853d09858c033c45c468d5cJason W Kim if (OutStreamer.hasRawTextSupport()) 64617b443df4368acfad853d09858c033c45c468d5cJason W Kim return; 64717b443df4368acfad853d09858c033c45c468d5cJason W Kim 64817b443df4368acfad853d09858c033c45c468d5cJason W Kim const ARMElfTargetObjectFile &TLOFELF = 64917b443df4368acfad853d09858c033c45c468d5cJason W Kim static_cast<const ARMElfTargetObjectFile &> 65017b443df4368acfad853d09858c033c45c468d5cJason W Kim (getObjFileLowering()); 65117b443df4368acfad853d09858c033c45c468d5cJason W Kim 65217b443df4368acfad853d09858c033c45c468d5cJason W Kim OutStreamer.SwitchSection(TLOFELF.getAttributesSection()); 653def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 654cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // Format version 655cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola OutStreamer.EmitIntValue(0x41, 1); 65617b443df4368acfad853d09858c033c45c468d5cJason W Kim} 65717b443df4368acfad853d09858c033c45c468d5cJason W Kim 658def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim//===----------------------------------------------------------------------===// 65997f06937449c593a248dbbb1365e6ae408fb9decChris Lattner 660988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbachstatic MCSymbol *getPICLabel(const char *Prefix, unsigned FunctionNumber, 661988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach unsigned LabelId, MCContext &Ctx) { 662988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach 663988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach MCSymbol *Label = Ctx.GetOrCreateSymbol(Twine(Prefix) 664988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach + "PC" + Twine(FunctionNumber) + "_" + Twine(LabelId)); 665988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach return Label; 666988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach} 667988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach 6682c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbachstatic MCSymbolRefExpr::VariantKind 6692c4d5125c708bb35140fc2a40b02beb1add101dbJim GrosbachgetModifierVariantKind(ARMCP::ARMCPModifier Modifier) { 6702c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach switch (Modifier) { 6712c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach default: llvm_unreachable("Unknown modifier!"); 6722c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::no_modifier: return MCSymbolRefExpr::VK_None; 6732c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::TLSGD: return MCSymbolRefExpr::VK_ARM_TLSGD; 6742c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::TPOFF: return MCSymbolRefExpr::VK_ARM_TPOFF; 6752c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::GOTTPOFF: return MCSymbolRefExpr::VK_ARM_GOTTPOFF; 6762c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::GOT: return MCSymbolRefExpr::VK_ARM_GOT; 6772c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::GOTOFF: return MCSymbolRefExpr::VK_ARM_GOTOFF; 6782c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach } 6792c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach return MCSymbolRefExpr::VK_None; 6802c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach} 6812c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach 6825de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan ChengMCSymbol *ARMAsmPrinter::GetARMGVSymbol(const GlobalValue *GV) { 6835de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng bool isIndirect = Subtarget->isTargetDarwin() && 6845de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng Subtarget->GVIsIndirectSymbol(GV, TM.getRelocationModel()); 6855de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng if (!isIndirect) 6865de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng return Mang->getSymbol(GV); 6875de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng 6885de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // FIXME: Remove this when Darwin transition to @GOT like syntax. 6895de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCSymbol *MCSym = GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr"); 6905de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MachineModuleInfoMachO &MMIMachO = 6915de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MMI->getObjFileInfo<MachineModuleInfoMachO>(); 6925de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MachineModuleInfoImpl::StubValueTy &StubSym = 6935de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng GV->hasHiddenVisibility() ? MMIMachO.getHiddenGVStubEntry(MCSym) : 6945de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MMIMachO.getGVStubEntry(MCSym); 6955de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng if (StubSym.getPointer() == 0) 6965de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng StubSym = MachineModuleInfoImpl:: 6975de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng StubValueTy(Mang->getSymbol(GV), !GV->hasInternalLinkage()); 6985de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng return MCSym; 6995de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng} 7005de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng 7015df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbachvoid ARMAsmPrinter:: 7025df08d8f55f47aafc671c358d971dbcc10dfdeefJim GrosbachEmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) { 7035df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach int Size = TM.getTargetData()->getTypeAllocSize(MCPV->getType()); 7045df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach 7055df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach ARMConstantPoolValue *ACPV = static_cast<ARMConstantPoolValue*>(MCPV); 7065df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach 7077c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach MCSymbol *MCSym; 7085df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach if (ACPV->isLSDA()) { 7097c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach SmallString<128> Str; 7107c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach raw_svector_ostream OS(Str); 7115df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach OS << MAI->getPrivateGlobalPrefix() << "_LSDA_" << getFunctionNumber(); 7127c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach MCSym = OutContext.GetOrCreateSymbol(OS.str()); 7135df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } else if (ACPV->isBlockAddress()) { 7147c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach MCSym = GetBlockAddressSymbol(ACPV->getBlockAddress()); 7155df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } else if (ACPV->isGlobalValue()) { 7165df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach const GlobalValue *GV = ACPV->getGV(); 7175de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCSym = GetARMGVSymbol(GV); 7185df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } else { 7195df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach assert(ACPV->isExtSymbol() && "unrecognized constant pool value"); 7207c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach MCSym = GetExternalSymbolSymbol(ACPV->getSymbol()); 7215df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } 7225df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach 7235df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach // Create an MCSymbol for the reference. 7242c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach const MCExpr *Expr = 7252c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCSymbolRefExpr::Create(MCSym, getModifierVariantKind(ACPV->getModifier()), 7262c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutContext); 7272c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach 7282c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach if (ACPV->getPCAdjustment()) { 7292c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCSymbol *PCLabel = getPICLabel(MAI->getPrivateGlobalPrefix(), 7302c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach getFunctionNumber(), 7312c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach ACPV->getLabelId(), 7322c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutContext); 7332c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach const MCExpr *PCRelExpr = MCSymbolRefExpr::Create(PCLabel, OutContext); 7342c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach PCRelExpr = 7352c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCBinaryExpr::CreateAdd(PCRelExpr, 7362c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCConstantExpr::Create(ACPV->getPCAdjustment(), 7372c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutContext), 7382c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutContext); 7392c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach if (ACPV->mustAddCurrentAddress()) { 7402c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach // We want "(<expr> - .)", but MC doesn't have a concept of the '.' 7412c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach // label, so just emit a local label end reference that instead. 7422c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCSymbol *DotSym = OutContext.CreateTempSymbol(); 7432c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutStreamer.EmitLabel(DotSym); 7442c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach const MCExpr *DotExpr = MCSymbolRefExpr::Create(DotSym, OutContext); 7452c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach PCRelExpr = MCBinaryExpr::CreateSub(PCRelExpr, DotExpr, OutContext); 7465df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } 7472c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach Expr = MCBinaryExpr::CreateSub(Expr, PCRelExpr, OutContext); 7485df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } 7492c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutStreamer.EmitValue(Expr, Size); 7505df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach} 7515df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach 752a2244cb38781e596110023399c7902b5ee5087feJim Grosbachvoid ARMAsmPrinter::EmitJumpTable(const MachineInstr *MI) { 753a2244cb38781e596110023399c7902b5ee5087feJim Grosbach unsigned Opcode = MI->getOpcode(); 754a2244cb38781e596110023399c7902b5ee5087feJim Grosbach int OpNum = 1; 755a2244cb38781e596110023399c7902b5ee5087feJim Grosbach if (Opcode == ARM::BR_JTadd) 756a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OpNum = 2; 757a2244cb38781e596110023399c7902b5ee5087feJim Grosbach else if (Opcode == ARM::BR_JTm) 758a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OpNum = 3; 759a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 760a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const MachineOperand &MO1 = MI->getOperand(OpNum); 761a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id 762a2244cb38781e596110023399c7902b5ee5087feJim Grosbach unsigned JTI = MO1.getIndex(); 763a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 764a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // Emit a label for the jump table. 765a2244cb38781e596110023399c7902b5ee5087feJim Grosbach MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, MO2.getImm()); 766a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OutStreamer.EmitLabel(JTISymbol); 767a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 768a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // Emit each entry of the table. 769a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo(); 770a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables(); 771a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs; 772a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 773a2244cb38781e596110023399c7902b5ee5087feJim Grosbach for (unsigned i = 0, e = JTBBs.size(); i != e; ++i) { 774a2244cb38781e596110023399c7902b5ee5087feJim Grosbach MachineBasicBlock *MBB = JTBBs[i]; 775a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // Construct an MCExpr for the entry. We want a value of the form: 776a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // (BasicBlockAddr - TableBeginAddr) 777a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // 778a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // For example, a table with entries jumping to basic blocks BB0 and BB1 779a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // would look like: 780a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // LJTI_0_0: 781a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // .word (LBB0 - LJTI_0_0) 782a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // .word (LBB1 - LJTI_0_0) 783a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const MCExpr *Expr = MCSymbolRefExpr::Create(MBB->getSymbol(), OutContext); 784a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 785a2244cb38781e596110023399c7902b5ee5087feJim Grosbach if (TM.getRelocationModel() == Reloc::PIC_) 786a2244cb38781e596110023399c7902b5ee5087feJim Grosbach Expr = MCBinaryExpr::CreateSub(Expr, MCSymbolRefExpr::Create(JTISymbol, 787a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OutContext), 788a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OutContext); 789a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OutStreamer.EmitValue(Expr, 4); 790a2244cb38781e596110023399c7902b5ee5087feJim Grosbach } 791a2244cb38781e596110023399c7902b5ee5087feJim Grosbach} 792a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 793882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbachvoid ARMAsmPrinter::EmitJump2Table(const MachineInstr *MI) { 794882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach unsigned Opcode = MI->getOpcode(); 795882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach int OpNum = (Opcode == ARM::t2BR_JT) ? 2 : 1; 796882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const MachineOperand &MO1 = MI->getOperand(OpNum); 797882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id 798882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach unsigned JTI = MO1.getIndex(); 799882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach 800882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // Emit a label for the jump table. 801882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, MO2.getImm()); 802882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach OutStreamer.EmitLabel(JTISymbol); 803882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach 804882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // Emit each entry of the table. 805882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo(); 806882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables(); 807882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs; 808205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach unsigned OffsetWidth = 4; 809d092a87ba3f905a6801a0bdf816267329cf0391cJim Grosbach if (MI->getOpcode() == ARM::t2TBB_JT) 810205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OffsetWidth = 1; 811d092a87ba3f905a6801a0bdf816267329cf0391cJim Grosbach else if (MI->getOpcode() == ARM::t2TBH_JT) 812205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OffsetWidth = 2; 813882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach 814882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach for (unsigned i = 0, e = JTBBs.size(); i != e; ++i) { 815882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach MachineBasicBlock *MBB = JTBBs[i]; 816205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach const MCExpr *MBBSymbolExpr = MCSymbolRefExpr::Create(MBB->getSymbol(), 817205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OutContext); 818882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // If this isn't a TBB or TBH, the entries are direct branch instructions. 819205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach if (OffsetWidth == 4) { 820882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach MCInst BrInst; 821882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach BrInst.setOpcode(ARM::t2B); 822205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach BrInst.addOperand(MCOperand::CreateExpr(MBBSymbolExpr)); 823882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach OutStreamer.EmitInstruction(BrInst); 824882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach continue; 825882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach } 826882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // Otherwise it's an offset from the dispatch instruction. Construct an 827205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // MCExpr for the entry. We want a value of the form: 828205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // (BasicBlockAddr - TableBeginAddr) / 2 829205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // 830205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // For example, a TBB table with entries jumping to basic blocks BB0 and BB1 831205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // would look like: 832205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // LJTI_0_0: 833205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // .byte (LBB0 - LJTI_0_0) / 2 834205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // .byte (LBB1 - LJTI_0_0) / 2 835205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach const MCExpr *Expr = 836205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach MCBinaryExpr::CreateSub(MBBSymbolExpr, 837205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach MCSymbolRefExpr::Create(JTISymbol, OutContext), 838205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OutContext); 839205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach Expr = MCBinaryExpr::CreateDiv(Expr, MCConstantExpr::Create(2, OutContext), 840205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OutContext); 841205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OutStreamer.EmitValue(Expr, OffsetWidth); 842882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach } 843882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach} 844882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach 8452d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbachvoid ARMAsmPrinter::PrintDebugValueComment(const MachineInstr *MI, 8462d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach raw_ostream &OS) { 8472d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach unsigned NOps = MI->getNumOperands(); 8482d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach assert(NOps==4); 8492d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << '\t' << MAI->getCommentString() << "DEBUG_VALUE: "; 8502d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach // cast away const; DIetc do not take const operands for some reason. 8512d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach DIVariable V(const_cast<MDNode *>(MI->getOperand(NOps-1).getMetadata())); 8522d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << V.getName(); 8532d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << " <- "; 8542d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach // Frame address. Currently handles register +- offset only. 8552d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach assert(MI->getOperand(0).isReg() && MI->getOperand(1).isImm()); 8562d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << '['; printOperand(MI, 0, OS); OS << '+'; printOperand(MI, 1, OS); 8572d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << ']'; 8582d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << "+"; 8592d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach printOperand(MI, NOps-2, OS); 8602d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach} 8612d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach 86240edf73a62bf025eba4391e806fb1ddada662355Jim Grosbachstatic void populateADROperands(MCInst &Inst, unsigned Dest, 86340edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach const MCSymbol *Label, 86440edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach unsigned pred, unsigned ccreg, 86540edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach MCContext &Ctx) { 86640edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach const MCExpr *SymbolExpr = MCSymbolRefExpr::Create(Label, Ctx); 86740edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach Inst.addOperand(MCOperand::CreateReg(Dest)); 86840edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach Inst.addOperand(MCOperand::CreateExpr(SymbolExpr)); 86940edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach // Add predicate operands. 87040edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach Inst.addOperand(MCOperand::CreateImm(pred)); 87140edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach Inst.addOperand(MCOperand::CreateReg(ccreg)); 87240edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach} 87340edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach 8744d7286083537833880901953d29786cf831affc4Anton Korobeynikovvoid ARMAsmPrinter::EmitPatchedInstruction(const MachineInstr *MI, 8754d7286083537833880901953d29786cf831affc4Anton Korobeynikov unsigned Opcode) { 8764d7286083537833880901953d29786cf831affc4Anton Korobeynikov MCInst TmpInst; 8774d7286083537833880901953d29786cf831affc4Anton Korobeynikov 8784d7286083537833880901953d29786cf831affc4Anton Korobeynikov // Emit the instruction as usual, just patch the opcode. 8794d7286083537833880901953d29786cf831affc4Anton Korobeynikov LowerARMMachineInstrToMCInst(MI, TmpInst, *this); 8804d7286083537833880901953d29786cf831affc4Anton Korobeynikov TmpInst.setOpcode(Opcode); 8814d7286083537833880901953d29786cf831affc4Anton Korobeynikov OutStreamer.EmitInstruction(TmpInst); 8824d7286083537833880901953d29786cf831affc4Anton Korobeynikov} 8834d7286083537833880901953d29786cf831affc4Anton Korobeynikov 88457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid ARMAsmPrinter::EmitUnwindingInstruction(const MachineInstr *MI) { 88557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(MI->getFlag(MachineInstr::FrameSetup) && 88657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov "Only instruction which are involved into frame setup code are allowed"); 88757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 88857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov const MachineFunction &MF = *MI->getParent()->getParent(); 88957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov const TargetRegisterInfo *RegInfo = MF.getTarget().getRegisterInfo(); 890b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov const ARMFunctionInfo &AFI = *MF.getInfo<ARMFunctionInfo>(); 89157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 89257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov unsigned FramePtr = RegInfo->getFrameRegister(MF); 89357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov unsigned Opc = MI->getOpcode(); 8947a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov unsigned SrcReg, DstReg; 8957a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov 8963daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov if (Opc == ARM::tPUSH || Opc == ARM::tLDRpci) { 8973daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // Two special cases: 8983daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // 1) tPUSH does not have src/dst regs. 8993daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // 2) for Thumb1 code we sometimes materialize the constant via constpool 9003daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // load. Yes, this is pretty fragile, but for now I don't see better 9013daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // way... :( 9027a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov SrcReg = DstReg = ARM::SP; 9037a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov } else { 9043daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov SrcReg = MI->getOperand(1).getReg(); 9057a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov DstReg = MI->getOperand(0).getReg(); 9067a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov } 90757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 90857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // Try to figure out the unwinding opcode out of src / dst regs. 90957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov if (MI->getDesc().mayStore()) { 91057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // Register saves. 91157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(DstReg == ARM::SP && 91257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov "Only stack pointer as a destination reg is supported"); 91357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 91457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov SmallVector<unsigned, 4> RegList; 9157a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov // Skip src & dst reg, and pred ops. 9167a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov unsigned StartOp = 2 + 2; 9177a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov // Use all the operands. 9187a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov unsigned NumOffset = 0; 9197a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov 92057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov switch (Opc) { 92157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov default: 92257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 92357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(0 && "Unsupported opcode for unwinding information"); 9247a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tPUSH: 9257a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov // Special case here: no src & dst reg, but two extra imp ops. 9267a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov StartOp = 2; NumOffset = 2; 92757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::STMDB_UPD: 9287a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::t2STMDB_UPD: 92957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::VSTMDDB_UPD: 93057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(SrcReg == ARM::SP && 93157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov "Only stack pointer as a source reg is supported"); 9327a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov for (unsigned i = StartOp, NumOps = MI->getNumOperands() - NumOffset; 9337a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov i != NumOps; ++i) 93457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov RegList.push_back(MI->getOperand(i).getReg()); 93557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 93657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::STR_PRE: 93757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(MI->getOperand(2).getReg() == ARM::SP && 93857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov "Only stack pointer as a source reg is supported"); 93957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov RegList.push_back(SrcReg); 94057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 94157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 94257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov OutStreamer.EmitRegSave(RegList, Opc == ARM::VSTMDDB_UPD); 94357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } else { 94457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // Changes of stack / frame pointer. 94557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov if (SrcReg == ARM::SP) { 94657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov int64_t Offset = 0; 94757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov switch (Opc) { 94857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov default: 94957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 95057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(0 && "Unsupported opcode for unwinding information"); 95157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::MOVr: 9527a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tMOVgpr2gpr: 9533daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov case ARM::tMOVgpr2tgpr: 95457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov Offset = 0; 95557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 95657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::ADDri: 95757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov Offset = -MI->getOperand(2).getImm(); 95857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 95957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::SUBri: 9607a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::t2SUBrSPi: 96157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov Offset = MI->getOperand(2).getImm(); 96257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 9637a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tSUBspi: 9647a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov Offset = MI->getOperand(2).getImm()*4; 9657a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov break; 9667a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tADDspi: 9677a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tADDrSPi: 9687a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov Offset = -MI->getOperand(2).getImm()*4; 9697a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov break; 970b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov case ARM::tLDRpci: { 971b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov // Grab the constpool index and check, whether it corresponds to 972b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov // original or cloned constpool entry. 973b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov unsigned CPI = MI->getOperand(1).getIndex(); 974b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov const MachineConstantPool *MCP = MF.getConstantPool(); 975b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov if (CPI >= MCP->getConstants().size()) 976b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov CPI = AFI.getOriginalCPIdx(CPI); 977b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov assert(CPI != -1U && "Invalid constpool index"); 978b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov 979b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov // Derive the actual offset. 980b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov const MachineConstantPoolEntry &CPE = MCP->getConstants()[CPI]; 981b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov assert(!CPE.isMachineConstantPoolEntry() && "Invalid constpool entry"); 982b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov // FIXME: Check for user, it should be "add" instruction! 983b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov Offset = -cast<ConstantInt>(CPE.Val.ConstVal)->getSExtValue(); 9843daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov break; 98557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 986b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov } 98757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 98857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov if (DstReg == FramePtr && FramePtr != ARM::SP) 989e516379d2a2fd1ad7583b2fa289051da517d8a42Anton Korobeynikov // Set-up of the frame pointer. Positive values correspond to "add" 990e516379d2a2fd1ad7583b2fa289051da517d8a42Anton Korobeynikov // instruction. 991e516379d2a2fd1ad7583b2fa289051da517d8a42Anton Korobeynikov OutStreamer.EmitSetFP(FramePtr, ARM::SP, -Offset); 99257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov else if (DstReg == ARM::SP) { 993e516379d2a2fd1ad7583b2fa289051da517d8a42Anton Korobeynikov // Change of SP by an offset. Positive values correspond to "sub" 99457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // instruction. 99557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov OutStreamer.EmitPad(Offset); 99657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } else { 99757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 99857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(0 && "Unsupported opcode for unwinding information"); 99957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 100057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } else if (DstReg == ARM::SP) { 100157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // FIXME: .movsp goes here 100257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 100357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(0 && "Unsupported opcode for unwinding information"); 100457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 100557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov else { 100657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 100757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(0 && "Unsupported opcode for unwinding information"); 100857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 100957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 101057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 101157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 101257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovextern cl::opt<bool> EnableARMEHABI; 101357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 1014b454cdaebc6e4543099955ce043258c3903b1a0eJim Grosbachvoid ARMAsmPrinter::EmitInstruction(const MachineInstr *MI) { 10155de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng unsigned Opc = MI->getOpcode(); 10165de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng switch (Opc) { 10174d1522234192704f45dfd2527c2913fa60be616eChris Lattner default: break; 101872422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach case ARM::B: { 101972422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach // B is just a Bcc with an 'always' predicate. 102072422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach MCInst TmpInst; 102172422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach LowerARMMachineInstrToMCInst(MI, TmpInst, *this); 102272422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach TmpInst.setOpcode(ARM::Bcc); 102372422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach // Add predicate operands. 102472422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 102572422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 102672422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 102772422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach return; 102872422d38ba6fb2fb0bb9c0c75fe450b3e939ea21Jim Grosbach } 1029dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach case ARM::LDMIA_RET: { 1030dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach // LDMIA_RET is just a normal LDMIA_UPD instruction that targets PC and as 1031dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach // such has additional code-gen properties and scheduling information. 1032dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach // To emit it, we just construct as normal and set the opcode to LDMIA_UPD. 1033dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach MCInst TmpInst; 1034dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach LowerARMMachineInstrToMCInst(MI, TmpInst, *this); 1035dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach TmpInst.setOpcode(ARM::LDMIA_UPD); 1036dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach OutStreamer.EmitInstruction(TmpInst); 1037dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach return; 1038dd11988c999c23eba2467e35892a2f42858c886bJim Grosbach } 10399702e6075c3e4cd508fd787e3bf6b3e64eb029abJim Grosbach case ARM::t2ADDrSPi: 10409702e6075c3e4cd508fd787e3bf6b3e64eb029abJim Grosbach case ARM::t2ADDrSPi12: 10419702e6075c3e4cd508fd787e3bf6b3e64eb029abJim Grosbach case ARM::t2SUBrSPi: 10429702e6075c3e4cd508fd787e3bf6b3e64eb029abJim Grosbach case ARM::t2SUBrSPi12: 1043766a63d20e89ad5a8b19aba2df0128c1f73174b3Jim Grosbach assert ((MI->getOperand(1).getReg() == ARM::SP) && 1044766a63d20e89ad5a8b19aba2df0128c1f73174b3Jim Grosbach "Unexpected source register!"); 10459702e6075c3e4cd508fd787e3bf6b3e64eb029abJim Grosbach break; 10469702e6075c3e4cd508fd787e3bf6b3e64eb029abJim Grosbach 1047112f2390e19774a54c2dd50391b99fb617da0973Chris Lattner case ARM::t2MOVi32imm: assert(0 && "Should be lowered by thumb2it pass"); 10482d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach case ARM::DBG_VALUE: { 10492d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach if (isVerbose() && OutStreamer.hasRawTextSupport()) { 10502d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach SmallString<128> TmpStr; 10512d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach raw_svector_ostream OS(TmpStr); 10522d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach PrintDebugValueComment(MI, OS); 10532d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OutStreamer.EmitRawText(StringRef(OS.str())); 10542d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach } 10552d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach return; 10562d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach } 10573efad8fad41f6ba8141befcc3fc6662246b663adJim Grosbach case ARM::tBfar: { 10583efad8fad41f6ba8141befcc3fc6662246b663adJim Grosbach MCInst TmpInst; 10593efad8fad41f6ba8141befcc3fc6662246b663adJim Grosbach TmpInst.setOpcode(ARM::tBL); 10603efad8fad41f6ba8141befcc3fc6662246b663adJim Grosbach TmpInst.addOperand(MCOperand::CreateExpr(MCSymbolRefExpr::Create( 10613efad8fad41f6ba8141befcc3fc6662246b663adJim Grosbach MI->getOperand(0).getMBB()->getSymbol(), OutContext))); 10623efad8fad41f6ba8141befcc3fc6662246b663adJim Grosbach OutStreamer.EmitInstruction(TmpInst); 10633efad8fad41f6ba8141befcc3fc6662246b663adJim Grosbach return; 10643efad8fad41f6ba8141befcc3fc6662246b663adJim Grosbach } 106540edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach case ARM::LEApcrel: 1066d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach case ARM::tLEApcrel: 106740edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach case ARM::t2LEApcrel: { 1068dff84b03258514463ede477af38f1246b95b0cd0Jim Grosbach // FIXME: Need to also handle globals and externals 1069dff84b03258514463ede477af38f1246b95b0cd0Jim Grosbach MCInst TmpInst; 1070d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach TmpInst.setOpcode(MI->getOpcode() == ARM::t2LEApcrel ? ARM::t2ADR 1071d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach : (MI->getOpcode() == ARM::tLEApcrel ? ARM::tADR 1072d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach : ARM::ADR)); 107340edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach populateADROperands(TmpInst, MI->getOperand(0).getReg(), 107440edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach GetCPISymbol(MI->getOperand(1).getIndex()), 107540edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach MI->getOperand(2).getImm(), MI->getOperand(3).getReg(), 107640edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach OutContext); 1077dff84b03258514463ede477af38f1246b95b0cd0Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1078dff84b03258514463ede477af38f1246b95b0cd0Jim Grosbach return; 1079dff84b03258514463ede477af38f1246b95b0cd0Jim Grosbach } 1080d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach case ARM::LEApcrelJT: 1081d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach case ARM::tLEApcrelJT: 1082d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach case ARM::t2LEApcrelJT: { 10835d14f9be7ba64162c7b996f36d419b11d8cdbe9aJim Grosbach MCInst TmpInst; 1084d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach TmpInst.setOpcode(MI->getOpcode() == ARM::t2LEApcrelJT ? ARM::t2ADR 1085d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach : (MI->getOpcode() == ARM::tLEApcrelJT ? ARM::tADR 1086d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach : ARM::ADR)); 108740edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach populateADROperands(TmpInst, MI->getOperand(0).getReg(), 108840edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach GetARMJTIPICJumpTableLabel2(MI->getOperand(1).getIndex(), 108940edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach MI->getOperand(2).getImm()), 109040edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach MI->getOperand(3).getImm(), MI->getOperand(4).getReg(), 109140edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach OutContext); 10925d14f9be7ba64162c7b996f36d419b11d8cdbe9aJim Grosbach OutStreamer.EmitInstruction(TmpInst); 10935d14f9be7ba64162c7b996f36d419b11d8cdbe9aJim Grosbach return; 10945d14f9be7ba64162c7b996f36d419b11d8cdbe9aJim Grosbach } 10952e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach case ARM::MOVPCRX: { 10962e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach MCInst TmpInst; 10972e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach TmpInst.setOpcode(ARM::MOVr); 10982e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 10992e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 11002e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach // Add predicate operands. 11012e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 11022e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 11032e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach // Add 's' bit operand (always reg0 for this) 11042e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 11052e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1106f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach return; 1107f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach } 1108f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach // Darwin call instructions are just normal call instructions with different 1109f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach // clobber semantics (they clobber R9). 1110f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach case ARM::BLr9: 1111f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach case ARM::BLr9_pred: 1112f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach case ARM::BLXr9: 1113f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach case ARM::BLXr9_pred: { 1114f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach unsigned newOpc; 1115f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach switch (Opc) { 1116f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach default: assert(0); 1117f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach case ARM::BLr9: newOpc = ARM::BL; break; 1118f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach case ARM::BLr9_pred: newOpc = ARM::BL_pred; break; 1119f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach case ARM::BLXr9: newOpc = ARM::BLX; break; 1120f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach case ARM::BLXr9_pred: newOpc = ARM::BLX_pred; break; 1121f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach } 1122f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach MCInst TmpInst; 1123f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach LowerARMMachineInstrToMCInst(MI, TmpInst, *this); 1124f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach TmpInst.setOpcode(newOpc); 1125f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach OutStreamer.EmitInstruction(TmpInst); 11262e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach return; 11272e812e1635422d0ec71cb4bda3f4d654857913f1Jim Grosbach } 1128a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach case ARM::BXr9_CALL: 1129a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach case ARM::BX_CALL: { 1130a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach { 1131a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach MCInst TmpInst; 1132a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.setOpcode(ARM::MOVr); 1133a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::LR)); 1134a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1135a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add predicate operands. 1136a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1137a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1138a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add 's' bit operand (always reg0 for this) 1139a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1140a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1141a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach } 1142a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach { 1143a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach MCInst TmpInst; 1144a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.setOpcode(ARM::BX); 1145a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 1146a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1147a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach } 1148a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach return; 1149a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach } 1150a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach case ARM::BMOVPCRXr9_CALL: 1151a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach case ARM::BMOVPCRX_CALL: { 1152a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach { 1153a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach MCInst TmpInst; 1154a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.setOpcode(ARM::MOVr); 1155a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::LR)); 1156a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1157a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add predicate operands. 1158a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1159a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1160a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add 's' bit operand (always reg0 for this) 1161a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1162a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1163a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach } 1164a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach { 1165a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach MCInst TmpInst; 1166a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.setOpcode(ARM::MOVr); 1167a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1168a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 1169a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add predicate operands. 1170a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1171a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1172a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add 's' bit operand (always reg0 for this) 1173a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1174a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1175a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach } 1176a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach return; 1177a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach } 117853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng case ARM::MOVi16_ga_pcrel: 117953519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng case ARM::t2MOVi16_ga_pcrel: { 11805de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCInst TmpInst; 118153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.setOpcode(Opc == ARM::MOVi16_ga_pcrel? ARM::MOVi16 : ARM::t2MOVi16); 11825de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 11835de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng 118453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng unsigned TF = MI->getOperand(1).getTargetFlags(); 118553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng bool isPIC = TF == ARMII::MO_LO16_NONLAZY_PIC; 11865de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng const GlobalValue *GV = MI->getOperand(1).getGlobal(); 11875de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCSymbol *GVSym = GetARMGVSymbol(GV); 11885de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng const MCExpr *GVSymExpr = MCSymbolRefExpr::Create(GVSym, OutContext); 118953519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng if (isPIC) { 119053519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCSymbol *LabelSym = getPICLabel(MAI->getPrivateGlobalPrefix(), 119153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng getFunctionNumber(), 119253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MI->getOperand(2).getImm(), OutContext); 119353519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *LabelSymExpr= MCSymbolRefExpr::Create(LabelSym, OutContext); 119453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng unsigned PCAdj = (Opc == ARM::MOVi16_ga_pcrel) ? 8 : 4; 119553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *PCRelExpr = 119653519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng ARMMCExpr::CreateLower16(MCBinaryExpr::CreateSub(GVSymExpr, 119753519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCBinaryExpr::CreateAdd(LabelSymExpr, 119853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCConstantExpr::Create(PCAdj, OutContext), 11995de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng OutContext), OutContext), OutContext); 120053519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.addOperand(MCOperand::CreateExpr(PCRelExpr)); 120153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng } else { 120253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *RefExpr= ARMMCExpr::CreateLower16(GVSymExpr, OutContext); 120353519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.addOperand(MCOperand::CreateExpr(RefExpr)); 120453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng } 120553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng 12065de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // Add predicate operands. 12075de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 12085de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(0)); 12095de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // Add 's' bit operand (always reg0 for this) 12105de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(0)); 12115de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng OutStreamer.EmitInstruction(TmpInst); 12125de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng return; 12135de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng } 121453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng case ARM::MOVTi16_ga_pcrel: 121553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng case ARM::t2MOVTi16_ga_pcrel: { 12165de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCInst TmpInst; 121753519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.setOpcode(Opc == ARM::MOVTi16_ga_pcrel 121853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng ? ARM::MOVTi16 : ARM::t2MOVTi16); 12195de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 12205de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg())); 12215de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng 122253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng unsigned TF = MI->getOperand(2).getTargetFlags(); 122353519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng bool isPIC = TF == ARMII::MO_HI16_NONLAZY_PIC; 12245de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng const GlobalValue *GV = MI->getOperand(2).getGlobal(); 12255de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCSymbol *GVSym = GetARMGVSymbol(GV); 12265de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng const MCExpr *GVSymExpr = MCSymbolRefExpr::Create(GVSym, OutContext); 122753519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng if (isPIC) { 122853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCSymbol *LabelSym = getPICLabel(MAI->getPrivateGlobalPrefix(), 122953519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng getFunctionNumber(), 123053519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MI->getOperand(3).getImm(), OutContext); 123153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *LabelSymExpr= MCSymbolRefExpr::Create(LabelSym, OutContext); 123253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng unsigned PCAdj = (Opc == ARM::MOVTi16_ga_pcrel) ? 8 : 4; 123353519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *PCRelExpr = 123453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng ARMMCExpr::CreateUpper16(MCBinaryExpr::CreateSub(GVSymExpr, 123553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCBinaryExpr::CreateAdd(LabelSymExpr, 123653519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCConstantExpr::Create(PCAdj, OutContext), 12375de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng OutContext), OutContext), OutContext); 123853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.addOperand(MCOperand::CreateExpr(PCRelExpr)); 123953519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng } else { 124053519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *RefExpr= ARMMCExpr::CreateUpper16(GVSymExpr, OutContext); 124153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.addOperand(MCOperand::CreateExpr(RefExpr)); 124253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng } 12435de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // Add predicate operands. 12445de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 12455de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(0)); 12465de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // Add 's' bit operand (always reg0 for this) 12475de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(0)); 12485de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng OutStreamer.EmitInstruction(TmpInst); 12495de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng return; 12505de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng } 1251fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach case ARM::tPICADD: { 1252fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // This is a pseudo op for a label + instruction sequence, which looks like: 1253fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // LPC0: 1254fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // add r0, pc 1255fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // This adds the address of LPC0 to r0. 1256fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach 1257fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // Emit the label. 1258988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(), 1259988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach getFunctionNumber(), MI->getOperand(2).getImm(), 1260988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutContext)); 1261fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach 1262fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // Form and emit the add. 1263fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach MCInst AddInst; 1264fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach AddInst.setOpcode(ARM::tADDhirr); 1265fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 1266fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 1267fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach AddInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1268fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // Add predicate operands. 1269fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach AddInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1270fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach AddInst.addOperand(MCOperand::CreateReg(0)); 1271fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach OutStreamer.EmitInstruction(AddInst); 1272fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach return; 1273fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach } 1274a3fbadfcd882f9f15bda7c1213b5ff52d6582a10Jim Grosbach case ARM::PICADD: { 12754d1522234192704f45dfd2527c2913fa60be616eChris Lattner // This is a pseudo op for a label + instruction sequence, which looks like: 12764d1522234192704f45dfd2527c2913fa60be616eChris Lattner // LPC0: 12774d1522234192704f45dfd2527c2913fa60be616eChris Lattner // add r0, pc, r0 12784d1522234192704f45dfd2527c2913fa60be616eChris Lattner // This adds the address of LPC0 to r0. 1279b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 12804d1522234192704f45dfd2527c2913fa60be616eChris Lattner // Emit the label. 1281988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(), 1282988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach getFunctionNumber(), MI->getOperand(2).getImm(), 1283988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutContext)); 1284b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 1285f3f09527e6484143fcdef2ddfef0b2f016881e36Jim Grosbach // Form and emit the add. 12864d1522234192704f45dfd2527c2913fa60be616eChris Lattner MCInst AddInst; 12874d1522234192704f45dfd2527c2913fa60be616eChris Lattner AddInst.setOpcode(ARM::ADDrr); 12884d1522234192704f45dfd2527c2913fa60be616eChris Lattner AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 12894d1522234192704f45dfd2527c2913fa60be616eChris Lattner AddInst.addOperand(MCOperand::CreateReg(ARM::PC)); 12904d1522234192704f45dfd2527c2913fa60be616eChris Lattner AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg())); 12915b46d62c4459dbfd56bb6ac650a271cd02365092Jim Grosbach // Add predicate operands. 12925b46d62c4459dbfd56bb6ac650a271cd02365092Jim Grosbach AddInst.addOperand(MCOperand::CreateImm(MI->getOperand(3).getImm())); 12935b46d62c4459dbfd56bb6ac650a271cd02365092Jim Grosbach AddInst.addOperand(MCOperand::CreateReg(MI->getOperand(4).getReg())); 12945b46d62c4459dbfd56bb6ac650a271cd02365092Jim Grosbach // Add 's' bit operand (always reg0 for this) 12955b46d62c4459dbfd56bb6ac650a271cd02365092Jim Grosbach AddInst.addOperand(MCOperand::CreateReg(0)); 1296850d2e2a1b58ea30abed10ca955259d60d07d97aChris Lattner OutStreamer.EmitInstruction(AddInst); 12974d1522234192704f45dfd2527c2913fa60be616eChris Lattner return; 1298b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach } 1299a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICSTR: 1300a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICSTRB: 1301a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICSTRH: 1302a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDR: 1303a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRB: 1304a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRH: 1305a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRSB: 1306a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRSH: { 1307b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // This is a pseudo op for a label + instruction sequence, which looks like: 1308b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // LPC0: 1309a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach // OP r0, [pc, r0] 1310b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // The LCP0 label is referenced by a constant pool entry in order to get 1311b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // a PC-relative address at the ldr instruction. 1312b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach 1313b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // Emit the label. 1314988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(), 1315988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach getFunctionNumber(), MI->getOperand(2).getImm(), 1316988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutContext)); 1317b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach 1318b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // Form and emit the load 1319a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach unsigned Opcode; 1320a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach switch (MI->getOpcode()) { 1321a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach default: 1322a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach llvm_unreachable("Unexpected opcode!"); 13237e3383c007f53b3a00675af225e428cb66ddf404Jim Grosbach case ARM::PICSTR: Opcode = ARM::STRrs; break; 13247e3383c007f53b3a00675af225e428cb66ddf404Jim Grosbach case ARM::PICSTRB: Opcode = ARM::STRBrs; break; 1325a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICSTRH: Opcode = ARM::STRH; break; 13263e5561247202bae994dd259a2d8dc4eff8f799f3Jim Grosbach case ARM::PICLDR: Opcode = ARM::LDRrs; break; 1327c1d30212e911d1e55ff6b25bffefb503708883c3Jim Grosbach case ARM::PICLDRB: Opcode = ARM::LDRBrs; break; 1328a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRH: Opcode = ARM::LDRH; break; 1329a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRSB: Opcode = ARM::LDRSB; break; 1330a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRSH: Opcode = ARM::LDRSH; break; 1331a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach } 1332a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach MCInst LdStInst; 1333a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach LdStInst.setOpcode(Opcode); 1334a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach LdStInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 1335a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach LdStInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1336a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach LdStInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg())); 1337a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach LdStInst.addOperand(MCOperand::CreateImm(0)); 1338b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // Add predicate operands. 1339a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach LdStInst.addOperand(MCOperand::CreateImm(MI->getOperand(3).getImm())); 1340a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach LdStInst.addOperand(MCOperand::CreateReg(MI->getOperand(4).getReg())); 1341a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach OutStreamer.EmitInstruction(LdStInst); 1342b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach 1343b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach return; 13444d1522234192704f45dfd2527c2913fa60be616eChris Lattner } 1345a3fbadfcd882f9f15bda7c1213b5ff52d6582a10Jim Grosbach case ARM::CONSTPOOL_ENTRY: { 1346a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner /// CONSTPOOL_ENTRY - This instruction represents a floating constant pool 1347a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner /// in the function. The first operand is the ID# for this instruction, the 1348a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner /// second is the index into the MachineConstantPool that this is, the third 1349a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner /// is the size in bytes of this constant pool entry. 1350a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner unsigned LabelId = (unsigned)MI->getOperand(0).getImm(); 1351a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner unsigned CPIdx = (unsigned)MI->getOperand(1).getIndex(); 1352a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner 1353a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner EmitAlignment(2); 13541b46f433e02155daba8ed3b1269c86ce63c9713bChris Lattner OutStreamer.EmitLabel(GetCPISymbol(LabelId)); 1355a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner 1356a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner const MachineConstantPoolEntry &MCPE = MCP->getConstants()[CPIdx]; 1357a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner if (MCPE.isMachineConstantPoolEntry()) 1358a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner EmitMachineConstantPoolValue(MCPE.Val.MachineCPVal); 1359a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner else 1360a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner EmitGlobalConstant(MCPE.Val.ConstVal); 1361b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 1362a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner return; 1363a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner } 1364882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach case ARM::t2BR_JT: { 1365882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // Lower and emit the instruction itself, then the jump table following it. 1366882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach MCInst TmpInst; 13675ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.setOpcode(ARM::tMOVgpr2gpr); 13685ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 13695ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 13705ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Add predicate operands. 13715ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 13725ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 13735ca66696e734f963b613de51e3df3684395daf1cJim Grosbach OutStreamer.EmitInstruction(TmpInst); 13745ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Output the data for the jump table itself 13755ca66696e734f963b613de51e3df3684395daf1cJim Grosbach EmitJump2Table(MI); 13765ca66696e734f963b613de51e3df3684395daf1cJim Grosbach return; 13775ca66696e734f963b613de51e3df3684395daf1cJim Grosbach } 13785ca66696e734f963b613de51e3df3684395daf1cJim Grosbach case ARM::t2TBB_JT: { 13795ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Lower and emit the instruction itself, then the jump table following it. 13805ca66696e734f963b613de51e3df3684395daf1cJim Grosbach MCInst TmpInst; 13815ca66696e734f963b613de51e3df3684395daf1cJim Grosbach 13825ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.setOpcode(ARM::t2TBB); 13835ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 13845ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 13855ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Add predicate operands. 13865ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 13875ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 13885ca66696e734f963b613de51e3df3684395daf1cJim Grosbach OutStreamer.EmitInstruction(TmpInst); 13895ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Output the data for the jump table itself 13905ca66696e734f963b613de51e3df3684395daf1cJim Grosbach EmitJump2Table(MI); 13915ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Make sure the next instruction is 2-byte aligned. 13925ca66696e734f963b613de51e3df3684395daf1cJim Grosbach EmitAlignment(1); 13935ca66696e734f963b613de51e3df3684395daf1cJim Grosbach return; 13945ca66696e734f963b613de51e3df3684395daf1cJim Grosbach } 13955ca66696e734f963b613de51e3df3684395daf1cJim Grosbach case ARM::t2TBH_JT: { 13965ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Lower and emit the instruction itself, then the jump table following it. 13975ca66696e734f963b613de51e3df3684395daf1cJim Grosbach MCInst TmpInst; 13985ca66696e734f963b613de51e3df3684395daf1cJim Grosbach 13995ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.setOpcode(ARM::t2TBH); 14005ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 14015ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 14025ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Add predicate operands. 14035ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 14045ca66696e734f963b613de51e3df3684395daf1cJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1405882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 14065ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Output the data for the jump table itself 1407882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach EmitJump2Table(MI); 1408882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach return; 1409882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach } 1410f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach case ARM::tBR_JTr: 14112dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach case ARM::BR_JTr: { 14122dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Lower and emit the instruction itself, then the jump table following it. 14132dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // mov pc, target 14142dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach MCInst TmpInst; 14155ca66696e734f963b613de51e3df3684395daf1cJim Grosbach unsigned Opc = MI->getOpcode() == ARM::BR_JTr ? 14165ca66696e734f963b613de51e3df3684395daf1cJim Grosbach ARM::MOVr : ARM::tMOVgpr2gpr; 1417f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach TmpInst.setOpcode(Opc); 14182dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 14192dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 14202dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Add predicate operands. 14212dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 14222dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1423a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add 's' bit operand (always reg0 for this) 1424a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach if (Opc == ARM::MOVr) 1425a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 14262dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 14272dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach 1428f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach // Make sure the Thumb jump table is 4-byte aligned. 1429a68a4fdf37676794ce69624d1fd4e4627c377902Bill Wendling if (Opc == ARM::tMOVgpr2gpr) 1430f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach EmitAlignment(2); 1431f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach 14322dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Output the data for the jump table itself 14332dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach EmitJumpTable(MI); 14342dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach return; 14352dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach } 14362dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach case ARM::BR_JTm: { 14372dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Lower and emit the instruction itself, then the jump table following it. 14382dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // ldr pc, target 14392dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach MCInst TmpInst; 14402dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach if (MI->getOperand(1).getReg() == 0) { 14412dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // literal offset 14422dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.setOpcode(ARM::LDRi12); 14432dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 14442dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 14452dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(MI->getOperand(2).getImm())); 14462dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach } else { 14472dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.setOpcode(ARM::LDRrs); 14482dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 14492dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 14502dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg())); 14512dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(0)); 14522dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach } 14532dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Add predicate operands. 14542dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 14552dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 14562dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 14572dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach 14582dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Output the data for the jump table itself 1459a2244cb38781e596110023399c7902b5ee5087feJim Grosbach EmitJumpTable(MI); 1460a2244cb38781e596110023399c7902b5ee5087feJim Grosbach return; 1461a2244cb38781e596110023399c7902b5ee5087feJim Grosbach } 1462f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach case ARM::BR_JTadd: { 1463f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach // Lower and emit the instruction itself, then the jump table following it. 1464f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach // add pc, target, idx 14652dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach MCInst TmpInst; 14662dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.setOpcode(ARM::ADDrr); 14672dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 14682dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 14692dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg())); 1470f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach // Add predicate operands. 14712dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 14722dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1473f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach // Add 's' bit operand (always reg0 for this) 14742dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 14752dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1476f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach 1477f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach // Output the data for the jump table itself 1478f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach EmitJumpTable(MI); 1479f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach return; 1480f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach } 14812e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach case ARM::TRAP: { 14822e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach // Non-Darwin binutils don't yet support the "trap" mnemonic. 14832e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach // FIXME: Remove this special case when they do. 14842e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach if (!Subtarget->isTargetDarwin()) { 148578890f41f404fad3663408edd4adf2e13c1e13b5Jim Grosbach //.long 0xe7ffdefe @ trap 1486b2dda4bd346fe9a2795f83f659c0e60191b2e6a0Jim Grosbach uint32_t Val = 0xe7ffdefeUL; 14872e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach OutStreamer.AddComment("trap"); 14882e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach OutStreamer.EmitIntValue(Val, 4); 14892e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach return; 14902e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach } 14912e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach break; 14922e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach } 14932e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach case ARM::tTRAP: { 14942e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach // Non-Darwin binutils don't yet support the "trap" mnemonic. 14952e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach // FIXME: Remove this special case when they do. 14962e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach if (!Subtarget->isTargetDarwin()) { 149778890f41f404fad3663408edd4adf2e13c1e13b5Jim Grosbach //.short 57086 @ trap 1498c8ab9eb066f6d35880e3a24436baf21236c921caBenjamin Kramer uint16_t Val = 0xdefe; 14992e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach OutStreamer.AddComment("trap"); 15002e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach OutStreamer.EmitIntValue(Val, 2); 15012e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach return; 15022e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach } 15032e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach break; 15042e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach } 1505433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach case ARM::t2Int_eh_sjlj_setjmp: 1506433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach case ARM::t2Int_eh_sjlj_setjmp_nofp: 1507a3fbadfcd882f9f15bda7c1213b5ff52d6582a10Jim Grosbach case ARM::tInt_eh_sjlj_setjmp: { 1508433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Two incoming args: GPR:$src, GPR:$val 1509433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // mov $val, pc 1510433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // adds $val, #7 1511433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // str $val, [$src, #4] 1512433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // movs r0, #0 1513433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // b 1f 1514433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // movs r0, #1 1515433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // 1: 1516433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach unsigned SrcReg = MI->getOperand(0).getReg(); 1517433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach unsigned ValReg = MI->getOperand(1).getReg(); 1518433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach MCSymbol *Label = GetARMSJLJEHLabel(); 1519433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach { 1520433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach MCInst TmpInst; 1521433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.setOpcode(ARM::tMOVgpr2tgpr); 1522433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ValReg)); 1523433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1524433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // 's' bit operand 1525433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::CPSR)); 1526433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.AddComment("eh_setjmp begin"); 1527433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.EmitInstruction(TmpInst); 1528433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach } 1529433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach { 1530433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach MCInst TmpInst; 1531433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.setOpcode(ARM::tADDi3); 1532433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ValReg)); 1533433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // 's' bit operand 1534433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::CPSR)); 1535433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ValReg)); 1536433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(7)); 1537433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Predicate. 1538433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1539433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1540433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.EmitInstruction(TmpInst); 1541433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach } 1542433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach { 1543433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach MCInst TmpInst; 1544f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling TmpInst.setOpcode(ARM::tSTRi); 1545433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ValReg)); 1546433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); 1547433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // The offset immediate is #4. The operand value is scaled by 4 for the 1548433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // tSTR instruction. 1549433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(1)); 1550433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Predicate. 1551433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1552433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1553433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.EmitInstruction(TmpInst); 1554433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach } 1555433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach { 1556433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach MCInst TmpInst; 1557433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.setOpcode(ARM::tMOVi8); 1558433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::R0)); 1559433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::CPSR)); 1560433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(0)); 1561433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Predicate. 1562433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1563433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1564433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.EmitInstruction(TmpInst); 1565433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach } 1566433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach { 1567433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach const MCExpr *SymbolExpr = MCSymbolRefExpr::Create(Label, OutContext); 1568433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach MCInst TmpInst; 1569433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.setOpcode(ARM::tB); 1570433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateExpr(SymbolExpr)); 1571433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.EmitInstruction(TmpInst); 1572433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach } 1573433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach { 1574433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach MCInst TmpInst; 1575433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.setOpcode(ARM::tMOVi8); 1576433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::R0)); 1577433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::CPSR)); 1578433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(1)); 1579433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Predicate. 1580433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1581433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1582433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.AddComment("eh_setjmp end"); 1583433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.EmitInstruction(TmpInst); 1584433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach } 1585433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.EmitLabel(Label); 1586433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach return; 1587433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach } 1588433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach 1589453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach case ARM::Int_eh_sjlj_setjmp_nofp: 1590a3fbadfcd882f9f15bda7c1213b5ff52d6582a10Jim Grosbach case ARM::Int_eh_sjlj_setjmp: { 1591453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Two incoming args: GPR:$src, GPR:$val 1592453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // add $val, pc, #8 1593453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // str $val, [$src, #+4] 1594453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // mov r0, #0 1595453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // add pc, pc, #0 1596453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // mov r0, #1 1597453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach unsigned SrcReg = MI->getOperand(0).getReg(); 1598453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach unsigned ValReg = MI->getOperand(1).getReg(); 1599453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach 1600453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach { 1601453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach MCInst TmpInst; 1602453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.setOpcode(ARM::ADDri); 1603453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ValReg)); 1604453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1605453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(8)); 1606453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1607453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1608453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1609453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // 's' bit operand (always reg0 for this). 1610453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1611453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach OutStreamer.AddComment("eh_setjmp begin"); 1612453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1613453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach } 1614453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach { 1615453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach MCInst TmpInst; 16167e3383c007f53b3a00675af225e428cb66ddf404Jim Grosbach TmpInst.setOpcode(ARM::STRi12); 1617453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ValReg)); 1618453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); 1619453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(4)); 1620453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1621453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1622453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1623453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1624453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach } 1625453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach { 1626453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach MCInst TmpInst; 1627453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.setOpcode(ARM::MOVi); 1628453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::R0)); 1629453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(0)); 1630453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1631453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1632453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1633453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // 's' bit operand (always reg0 for this). 1634453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1635453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1636453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach } 1637453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach { 1638453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach MCInst TmpInst; 1639453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.setOpcode(ARM::ADDri); 1640453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1641453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 1642453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(0)); 1643453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1644453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1645453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1646453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // 's' bit operand (always reg0 for this). 1647453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1648453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1649453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach } 1650453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach { 1651453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach MCInst TmpInst; 1652453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.setOpcode(ARM::MOVi); 1653453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::R0)); 1654453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(1)); 1655453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1656453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1657453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1658453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // 's' bit operand (always reg0 for this). 1659453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1660453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach OutStreamer.AddComment("eh_setjmp end"); 1661453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1662453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach } 1663453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach return; 1664453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach } 16655acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach case ARM::Int_eh_sjlj_longjmp: { 16665acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // ldr sp, [$src, #8] 16675acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // ldr $scratch, [$src, #4] 16685acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // ldr r7, [$src] 16695acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // bx $scratch 16705acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach unsigned SrcReg = MI->getOperand(0).getReg(); 16715acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach unsigned ScratchReg = MI->getOperand(1).getReg(); 16725acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach { 16735acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach MCInst TmpInst; 16743e5561247202bae994dd259a2d8dc4eff8f799f3Jim Grosbach TmpInst.setOpcode(ARM::LDRi12); 16755acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::SP)); 16765acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); 16775acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(8)); 16785acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // Predicate. 16795acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 16805acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 16815acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach OutStreamer.EmitInstruction(TmpInst); 16825acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach } 16835acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach { 16845acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach MCInst TmpInst; 16853e5561247202bae994dd259a2d8dc4eff8f799f3Jim Grosbach TmpInst.setOpcode(ARM::LDRi12); 16865acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ScratchReg)); 16875acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); 16885acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(4)); 16895acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // Predicate. 16905acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 16915acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 16925acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach OutStreamer.EmitInstruction(TmpInst); 16935acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach } 16945acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach { 16955acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach MCInst TmpInst; 16963e5561247202bae994dd259a2d8dc4eff8f799f3Jim Grosbach TmpInst.setOpcode(ARM::LDRi12); 16975acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::R7)); 16985acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); 16995acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(0)); 17005acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // Predicate. 17015acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 17025acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 17035acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach OutStreamer.EmitInstruction(TmpInst); 17045acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach } 17055acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach { 17065acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach MCInst TmpInst; 17076e46d84eea97792a66c0bb64f26aad3976a23365Bill Wendling TmpInst.setOpcode(ARM::BX); 17085acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ScratchReg)); 17095acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // Predicate. 17105acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 17115acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1712385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1713385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach } 1714385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach return; 1715385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach } 1716385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach case ARM::tInt_eh_sjlj_longjmp: { 1717385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // ldr $scratch, [$src, #8] 1718385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // mov sp, $scratch 1719385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // ldr $scratch, [$src, #4] 1720385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // ldr r7, [$src] 1721385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // bx $scratch 1722385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach unsigned SrcReg = MI->getOperand(0).getReg(); 1723385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach unsigned ScratchReg = MI->getOperand(1).getReg(); 1724385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach { 1725385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach MCInst TmpInst; 1726f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling TmpInst.setOpcode(ARM::tLDRi); 1727385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ScratchReg)); 1728385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); 1729385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // The offset immediate is #8. The operand value is scaled by 4 for the 1730f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling // tLDR instruction. 1731385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(2)); 1732385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1733385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1734385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1735385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1736385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach } 1737385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach { 1738385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach MCInst TmpInst; 1739385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.setOpcode(ARM::tMOVtgpr2gpr); 1740385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::SP)); 1741385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ScratchReg)); 1742385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1743385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1744385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1745385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1746385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach } 1747385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach { 1748385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach MCInst TmpInst; 1749f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling TmpInst.setOpcode(ARM::tLDRi); 1750385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ScratchReg)); 1751385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); 1752385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(1)); 1753385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1754385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1755385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1756385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1757385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach } 1758385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach { 1759385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach MCInst TmpInst; 1760f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling TmpInst.setOpcode(ARM::tLDRr); 1761385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::R7)); 1762385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(SrcReg)); 1763385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1764385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1765385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1766385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1767385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 1768385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach } 1769385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach { 1770385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach MCInst TmpInst; 1771385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.setOpcode(ARM::tBX_RET_vararg); 1772385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ScratchReg)); 1773385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1774385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 1775385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 17765acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach OutStreamer.EmitInstruction(TmpInst); 17775acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach } 17785acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach return; 17795acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach } 17805edf24efac40062766c643e08f11bc509d373370Jim Grosbach // Tail jump branches are really just branch instructions with additional 17817a2bdde0a0eebcd2125055e0eacaca040f0b766cChris Lattner // code-gen attributes. Convert them to the canonical form here. 17825edf24efac40062766c643e08f11bc509d373370Jim Grosbach case ARM::TAILJMPd: 17835edf24efac40062766c643e08f11bc509d373370Jim Grosbach case ARM::TAILJMPdND: { 17845edf24efac40062766c643e08f11bc509d373370Jim Grosbach MCInst TmpInst, TmpInst2; 17855edf24efac40062766c643e08f11bc509d373370Jim Grosbach // Lower the instruction as-is to get the operands properly converted. 17865edf24efac40062766c643e08f11bc509d373370Jim Grosbach LowerARMMachineInstrToMCInst(MI, TmpInst2, *this); 17875edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.setOpcode(ARM::Bcc); 17885edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.addOperand(TmpInst2.getOperand(0)); 17895edf24efac40062766c643e08f11bc509d373370Jim Grosbach // Add predicate operands. 17905edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 17915edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 17925edf24efac40062766c643e08f11bc509d373370Jim Grosbach OutStreamer.AddComment("TAILCALL"); 17935edf24efac40062766c643e08f11bc509d373370Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 17945edf24efac40062766c643e08f11bc509d373370Jim Grosbach return; 17955edf24efac40062766c643e08f11bc509d373370Jim Grosbach } 17965edf24efac40062766c643e08f11bc509d373370Jim Grosbach case ARM::tTAILJMPd: 17975edf24efac40062766c643e08f11bc509d373370Jim Grosbach case ARM::tTAILJMPdND: { 17985edf24efac40062766c643e08f11bc509d373370Jim Grosbach MCInst TmpInst, TmpInst2; 17995edf24efac40062766c643e08f11bc509d373370Jim Grosbach LowerARMMachineInstrToMCInst(MI, TmpInst2, *this); 18005edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.setOpcode(ARM::tB); 18015edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.addOperand(TmpInst2.getOperand(0)); 18025edf24efac40062766c643e08f11bc509d373370Jim Grosbach OutStreamer.AddComment("TAILCALL"); 18035edf24efac40062766c643e08f11bc509d373370Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 18045edf24efac40062766c643e08f11bc509d373370Jim Grosbach return; 18055edf24efac40062766c643e08f11bc509d373370Jim Grosbach } 18065edf24efac40062766c643e08f11bc509d373370Jim Grosbach case ARM::TAILJMPrND: 18075edf24efac40062766c643e08f11bc509d373370Jim Grosbach case ARM::tTAILJMPrND: 18085edf24efac40062766c643e08f11bc509d373370Jim Grosbach case ARM::TAILJMPr: 18095edf24efac40062766c643e08f11bc509d373370Jim Grosbach case ARM::tTAILJMPr: { 18105edf24efac40062766c643e08f11bc509d373370Jim Grosbach unsigned newOpc = (Opc == ARM::TAILJMPr || Opc == ARM::TAILJMPrND) 18115edf24efac40062766c643e08f11bc509d373370Jim Grosbach ? ARM::BX : ARM::tBX; 18125edf24efac40062766c643e08f11bc509d373370Jim Grosbach MCInst TmpInst; 18135edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.setOpcode(newOpc); 18145edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 18155edf24efac40062766c643e08f11bc509d373370Jim Grosbach // Predicate. 18165edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 18175edf24efac40062766c643e08f11bc509d373370Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 18185edf24efac40062766c643e08f11bc509d373370Jim Grosbach OutStreamer.AddComment("TAILCALL"); 18195edf24efac40062766c643e08f11bc509d373370Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 18205edf24efac40062766c643e08f11bc509d373370Jim Grosbach return; 18215edf24efac40062766c643e08f11bc509d373370Jim Grosbach } 18225edf24efac40062766c643e08f11bc509d373370Jim Grosbach 18234d7286083537833880901953d29786cf831affc4Anton Korobeynikov // These are the pseudos created to comply with stricter operand restrictions 18244d7286083537833880901953d29786cf831affc4Anton Korobeynikov // on ARMv5. Lower them now to "normal" instructions, since all the 18254d7286083537833880901953d29786cf831affc4Anton Korobeynikov // restrictions are already satisfied. 18264d7286083537833880901953d29786cf831affc4Anton Korobeynikov case ARM::MULv5: 18274d7286083537833880901953d29786cf831affc4Anton Korobeynikov EmitPatchedInstruction(MI, ARM::MUL); 18284d7286083537833880901953d29786cf831affc4Anton Korobeynikov return; 18294d7286083537833880901953d29786cf831affc4Anton Korobeynikov case ARM::MLAv5: 18304d7286083537833880901953d29786cf831affc4Anton Korobeynikov EmitPatchedInstruction(MI, ARM::MLA); 18314d7286083537833880901953d29786cf831affc4Anton Korobeynikov return; 18324d7286083537833880901953d29786cf831affc4Anton Korobeynikov case ARM::SMULLv5: 18334d7286083537833880901953d29786cf831affc4Anton Korobeynikov EmitPatchedInstruction(MI, ARM::SMULL); 18344d7286083537833880901953d29786cf831affc4Anton Korobeynikov return; 18354d7286083537833880901953d29786cf831affc4Anton Korobeynikov case ARM::UMULLv5: 18364d7286083537833880901953d29786cf831affc4Anton Korobeynikov EmitPatchedInstruction(MI, ARM::UMULL); 18374d7286083537833880901953d29786cf831affc4Anton Korobeynikov return; 18384d7286083537833880901953d29786cf831affc4Anton Korobeynikov case ARM::SMLALv5: 18394d7286083537833880901953d29786cf831affc4Anton Korobeynikov EmitPatchedInstruction(MI, ARM::SMLAL); 18404d7286083537833880901953d29786cf831affc4Anton Korobeynikov return; 18414d7286083537833880901953d29786cf831affc4Anton Korobeynikov case ARM::UMLALv5: 18424d7286083537833880901953d29786cf831affc4Anton Korobeynikov EmitPatchedInstruction(MI, ARM::UMLAL); 18434d7286083537833880901953d29786cf831affc4Anton Korobeynikov return; 18444d7286083537833880901953d29786cf831affc4Anton Korobeynikov case ARM::UMAALv5: 18454d7286083537833880901953d29786cf831affc4Anton Korobeynikov EmitPatchedInstruction(MI, ARM::UMAAL); 18464d7286083537833880901953d29786cf831affc4Anton Korobeynikov return; 184797f06937449c593a248dbbb1365e6ae408fb9decChris Lattner } 1848b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 184997f06937449c593a248dbbb1365e6ae408fb9decChris Lattner MCInst TmpInst; 185030e2cc254be72601b11383dda01f495741ffd56cChris Lattner LowerARMMachineInstrToMCInst(MI, TmpInst, *this); 185157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 185257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // Emit unwinding stuff for frame-related instructions 185357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov if (EnableARMEHABI && MI->getFlag(MachineInstr::FrameSetup)) 185457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov EmitUnwindingInstruction(MI); 185557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 1856850d2e2a1b58ea30abed10ca955259d60d07d97aChris Lattner OutStreamer.EmitInstruction(TmpInst); 185797f06937449c593a248dbbb1365e6ae408fb9decChris Lattner} 18582685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar 18592685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar//===----------------------------------------------------------------------===// 18602685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar// Target Registry Stuff 18612685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar//===----------------------------------------------------------------------===// 18622685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar 18632685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbarstatic MCInstPrinter *createARMMCInstPrinter(const Target &T, 1864a5c177e70a42f48e4885075c4c48aad0816a2817Bill Wendling TargetMachine &TM, 18652685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar unsigned SyntaxVariant, 1866d374087be5360a353a4239a155b1227057145f48Chris Lattner const MCAsmInfo &MAI) { 18672685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar if (SyntaxVariant == 0) 1868a5c177e70a42f48e4885075c4c48aad0816a2817Bill Wendling return new ARMInstPrinter(TM, MAI); 18692685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar return 0; 18702685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar} 18712685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar 18722685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar// Force static initialization. 18732685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbarextern "C" void LLVMInitializeARMAsmPrinter() { 18742685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar RegisterAsmPrinter<ARMAsmPrinter> X(TheARMTarget); 18752685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar RegisterAsmPrinter<ARMAsmPrinter> Y(TheThumbTarget); 18762685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar 18772685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar TargetRegistry::RegisterMCInstPrinter(TheARMTarget, createARMMCInstPrinter); 18782685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar TargetRegistry::RegisterMCInstPrinter(TheThumbTarget, createARMMCInstPrinter); 18792685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar} 18802685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar 1881