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" 16b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "ARMAsmPrinter.h" 17c1f6f42049696e7357fb4837e1b25dabbaed3fe6Craig Topper#include "ARM.h" 18b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "ARMBuildAttrs.h" 19a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include "ARMConstantPoolValue.h" 2097f06937449c593a248dbbb1365e6ae408fb9decChris Lattner#include "ARMMachineFunctionInfo.h" 2197f06937449c593a248dbbb1365e6ae408fb9decChris Lattner#include "ARMTargetMachine.h" 2217b443df4368acfad853d09858c033c45c468d5cJason W Kim#include "ARMTargetObjectFile.h" 23b72d2a92b75daa9cbac7338aff0cd8ae04c2b4bdEvan Cheng#include "InstPrinter/ARMInstPrinter.h" 24ee04a6d3a40c3017124e3fd89a0db473a2824498Evan Cheng#include "MCTargetDesc/ARMAddressingModes.h" 25ee04a6d3a40c3017124e3fd89a0db473a2824498Evan Cheng#include "MCTargetDesc/ARMMCExpr.h" 26837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach#include "llvm/ADT/SetVector.h" 27837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach#include "llvm/ADT/SmallString.h" 28cf20ac4fd12ea3510a8f32a24fff69eebe7b6f4aDan Gohman#include "llvm/Assembly/Writer.h" 297bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola#include "llvm/CodeGen/MachineFunctionPass.h" 30a8e2989ece6dc46df59b0768184028257f913843Evan Cheng#include "llvm/CodeGen/MachineJumpTableInfo.h" 31d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/CodeGen/MachineModuleInfoImpls.h" 32d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/DebugInfo.h" 330b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Constants.h" 340b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/DataLayout.h" 350b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Module.h" 360b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Type.h" 37b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner#include "llvm/MC/MCAsmInfo.h" 38cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola#include "llvm/MC/MCAssembler.h" 39b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner#include "llvm/MC/MCContext.h" 4097130e2b3de080e231caac86dbce1500e4e7af16Jack Carter#include "llvm/MC/MCELFStreamer.h" 4197f06937449c593a248dbbb1365e6ae408fb9decChris Lattner#include "llvm/MC/MCInst.h" 42391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer#include "llvm/MC/MCInstBuilder.h" 43cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola#include "llvm/MC/MCObjectStreamer.h" 44d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/MC/MCSectionMachO.h" 456c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner#include "llvm/MC/MCStreamer.h" 46325d3dcfe4d5efc91db0f59b20a72a11dea024edChris Lattner#include "llvm/MC/MCSymbol.h" 4797f06937449c593a248dbbb1365e6ae408fb9decChris Lattner#include "llvm/Support/CommandLine.h" 4859135f49e1699daec9a43fc2d15715d55b910f54Devang Patel#include "llvm/Support/Debug.h" 4997130e2b3de080e231caac86dbce1500e4e7af16Jack Carter#include "llvm/Support/ELF.h" 503046470919e648ff7c011bda9c094163062c83dcTorok Edwin#include "llvm/Support/ErrorHandling.h" 513e74d6fdd248e20a280f1dff3da9a6c689c2c4c3Evan Cheng#include "llvm/Support/TargetRegistry.h" 52b23569aff0a6d2b231cb93cc4acd0ac060ba560fChris Lattner#include "llvm/Support/raw_ostream.h" 53d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/Mangler.h" 54d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Target/TargetMachine.h" 557bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola#include <cctype> 567bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindolausing namespace llvm; 577bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 5895b2c7da5e83670881270c1cd231a240be0556d9Chris Lattnernamespace { 59cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 60cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // Per section and per symbol attributes are not supported. 61cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // To implement them we would need the ability to delay this emission 62cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // until the assembly file is fully parsed/generated as only then do we 63cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // know the symbol and section numbers. 64cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola class AttributeEmitter { 65cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola public: 66cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola virtual void MaybeSwitchVendor(StringRef Vendor) = 0; 67cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola virtual void EmitAttribute(unsigned Attribute, unsigned Value) = 0; 68f009a961caa75465999ef3bc764984d97a7da331Jason W Kim virtual void EmitTextAttribute(unsigned Attribute, StringRef String) = 0; 69cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola virtual void Finish() = 0; 704921e2356ef8f3b3f9ebd0c154b091c3d5dd2ce4Rafael Espindola virtual ~AttributeEmitter() {} 71cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola }; 72cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 73cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola class AsmAttributeEmitter : public AttributeEmitter { 74cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola MCStreamer &Streamer; 75cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 76cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola public: 77cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AsmAttributeEmitter(MCStreamer &Streamer_) : Streamer(Streamer_) {} 78cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void MaybeSwitchVendor(StringRef Vendor) { } 79cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 80cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void EmitAttribute(unsigned Attribute, unsigned Value) { 81cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Streamer.EmitRawText("\t.eabi_attribute " + 82cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Twine(Attribute) + ", " + Twine(Value)); 83cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 84cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 85f009a961caa75465999ef3bc764984d97a7da331Jason W Kim void EmitTextAttribute(unsigned Attribute, StringRef String) { 86f009a961caa75465999ef3bc764984d97a7da331Jason W Kim switch (Attribute) { 87bc2198133a1836598b54b943420748e75d5dea94Craig Topper default: llvm_unreachable("Unsupported Text attribute in ASM Mode"); 88f009a961caa75465999ef3bc764984d97a7da331Jason W Kim case ARMBuildAttrs::CPU_name: 89590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer Streamer.EmitRawText(StringRef("\t.cpu ") + String.lower()); 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: 94590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer Streamer.EmitRawText(StringRef("\t.fpu ") + String.lower()); 958e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach break; 96f009a961caa75465999ef3bc764984d97a7da331Jason W Kim } 97f009a961caa75465999ef3bc764984d97a7da331Jason W Kim } 98cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void Finish() { } 99cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola }; 100cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 101cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola class ObjectAttributeEmitter : public AttributeEmitter { 102719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // This structure holds all attributes, accounting for 103719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // their string/numeric value, so we can later emmit them 104719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // in declaration order, keeping all in the same vector 105719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin struct AttributeItemType { 106719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin enum { 107719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin HiddenAttribute = 0, 108719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin NumericAttribute, 109719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin TextAttribute 110719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin } Type; 111719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin unsigned Tag; 112719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin unsigned IntValue; 113719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin StringRef StringValue; 114719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin } AttributeItem; 115719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin 116cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola MCObjectStreamer &Streamer; 117cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola StringRef CurrentVendor; 118719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin SmallVector<AttributeItemType, 64> Contents; 119719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin 120719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // Account for the ULEB/String size of each item, 121719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // not just the number of items 122719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin size_t ContentsSize; 123719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // FIXME: this should be in a more generic place, but 124719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // getULEBSize() is in MCAsmInfo and will be moved to MCDwarf 125719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin size_t getULEBSize(int Value) { 126719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin size_t Size = 0; 127719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin do { 128719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Value >>= 7; 129719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Size += sizeof(int8_t); // Is this really necessary? 130719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin } while (Value); 131719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin return Size; 132719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin } 133cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 134cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola public: 135cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola ObjectAttributeEmitter(MCObjectStreamer &Streamer_) : 136719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Streamer(Streamer_), CurrentVendor(""), ContentsSize(0) { } 137cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 138cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void MaybeSwitchVendor(StringRef Vendor) { 139cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola assert(!Vendor.empty() && "Vendor cannot be empty."); 140cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 141cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola if (CurrentVendor.empty()) 142cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola CurrentVendor = Vendor; 143cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola else if (CurrentVendor == Vendor) 144cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola return; 145cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola else 146cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola Finish(); 147cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 148cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola CurrentVendor = Vendor; 149cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 1503336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola assert(Contents.size() == 0); 151cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 152cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 153cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void EmitAttribute(unsigned Attribute, unsigned Value) { 154719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin AttributeItemType attr = { 155719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin AttributeItemType::NumericAttribute, 156719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Attribute, 157719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Value, 158719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin StringRef("") 159719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin }; 160719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin ContentsSize += getULEBSize(Attribute); 161719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin ContentsSize += getULEBSize(Value); 162719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Contents.push_back(attr); 163cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 164cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 165f009a961caa75465999ef3bc764984d97a7da331Jason W Kim void EmitTextAttribute(unsigned Attribute, StringRef String) { 166719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin AttributeItemType attr = { 167719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin AttributeItemType::TextAttribute, 168719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Attribute, 169719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin 0, 170719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin String 171719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin }; 172719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin ContentsSize += getULEBSize(Attribute); 173719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // String + \0 174719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin ContentsSize += String.size()+1; 175719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin 176719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Contents.push_back(attr); 177f009a961caa75465999ef3bc764984d97a7da331Jason W Kim } 178f009a961caa75465999ef3bc764984d97a7da331Jason W Kim 179cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola void Finish() { 1803336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola // Vendor size + Vendor name + '\0' 1813336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola const size_t VendorHeaderSize = 4 + CurrentVendor.size() + 1; 182cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 1833336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola // Tag + Tag Size 1843336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola const size_t TagHeaderSize = 1 + 4; 185cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 1863336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitIntValue(VendorHeaderSize + TagHeaderSize + ContentsSize, 4); 18768ca56285f9b6e82eb16ff8ea02a301f2c489faeEric Christopher Streamer.EmitBytes(CurrentVendor); 1883336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitIntValue(0, 1); // '\0' 1893336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola 1903336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitIntValue(ARMBuildAttrs::File, 1); 1913336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Streamer.EmitIntValue(TagHeaderSize + ContentsSize, 4); 192cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 193719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // Size should have been accounted for already, now 194719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin // emit each field as its type (ULEB or String) 195719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin for (unsigned int i=0; i<Contents.size(); ++i) { 196719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin AttributeItemType item = Contents[i]; 1971ced208be9cab0f994c5df9000da36bc313b2507Eric Christopher Streamer.EmitULEB128IntValue(item.Tag); 198719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin switch (item.Type) { 199bc2198133a1836598b54b943420748e75d5dea94Craig Topper default: llvm_unreachable("Invalid attribute type"); 200719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin case AttributeItemType::NumericAttribute: 2011ced208be9cab0f994c5df9000da36bc313b2507Eric Christopher Streamer.EmitULEB128IntValue(item.IntValue); 202719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin break; 203719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin case AttributeItemType::TextAttribute: 20468ca56285f9b6e82eb16ff8ea02a301f2c489faeEric Christopher Streamer.EmitBytes(item.StringValue.upper()); 205719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin Streamer.EmitIntValue(0, 1); // '\0' 206719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin break; 207719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin } 208719927a68f5b8ca34bacbeb7c970f281e27cbf63Renato Golin } 2093336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola 2103336384239e563bdc5f3dbb8affec6c1e9ffbc47Rafael Espindola Contents.clear(); 211cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 212cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola }; 213cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 2147bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola} // end of anonymous namespace 2157bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 216baf120fbe8056ef68fc91b16465590fdf2311c27Jim GrosbachMachineLocation ARMAsmPrinter:: 217baf120fbe8056ef68fc91b16465590fdf2311c27Jim GrosbachgetDebugValueLocation(const MachineInstr *MI) const { 218baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach MachineLocation Location; 219baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach assert(MI->getNumOperands() == 4 && "Invalid no. of machine operands!"); 220baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach // Frame address. Currently handles register +- offset only. 221baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach if (MI->getOperand(0).isReg() && MI->getOperand(1).isImm()) 222baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach Location.set(MI->getOperand(0).getReg(), MI->getOperand(1).getImm()); 223baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach else { 224baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach DEBUG(dbgs() << "DBG_VALUE instruction ignored! " << *MI << "\n"); 225baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach } 226baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach return Location; 227baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach} 228baf120fbe8056ef68fc91b16465590fdf2311c27Jim Grosbach 22927f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel/// EmitDwarfRegOp - Emit dwarf register operation. 2300be77dff1147488814b8eea6ec8619f56e3d9f5eDevang Patelvoid ARMAsmPrinter::EmitDwarfRegOp(const MachineLocation &MLoc) const { 23127f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel const TargetRegisterInfo *RI = TM.getRegisterInfo(); 23227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel if (RI->getDwarfRegNum(MLoc.getReg(), false) != -1) 2330be77dff1147488814b8eea6ec8619f56e3d9f5eDevang Patel AsmPrinter::EmitDwarfRegOp(MLoc); 23427f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel else { 23527f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel unsigned Reg = MLoc.getReg(); 23627f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel if (Reg >= ARM::S0 && Reg <= ARM::S31) { 2370a6ea83f393d06fb424c470777a1c3e8a8c50ab1Devang Patel assert(ARM::S0 + 31 == ARM::S31 && "Unexpected ARM S register numbering"); 23827f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel // S registers are described as bit-pieces of a register 23927f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel // S[2x] = DW_OP_regx(256 + (x>>1)) DW_OP_bit_piece(32, 0) 24027f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel // S[2x+1] = DW_OP_regx(256 + (x>>1)) DW_OP_bit_piece(32, 32) 2418e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach 24227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel unsigned SReg = Reg - ARM::S0; 24327f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel bool odd = SReg & 0x1; 24427f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel unsigned Rx = 256 + (SReg >> 1); 24527f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 24627f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment("DW_OP_regx for S register"); 24727f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitInt8(dwarf::DW_OP_regx); 24827f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 24927f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment(Twine(SReg)); 25027f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(Rx); 25127f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 25227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel if (odd) { 25327f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment("DW_OP_bit_piece 32 32"); 25427f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitInt8(dwarf::DW_OP_bit_piece); 25527f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(32); 25627f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(32); 25727f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel } else { 25827f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel OutStreamer.AddComment("DW_OP_bit_piece 32 0"); 25927f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitInt8(dwarf::DW_OP_bit_piece); 26027f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(32); 26127f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel EmitULEB128(0); 26227f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel } 26371f3f1146f2ba2773f0467767b67c12258960f34Devang Patel } else if (Reg >= ARM::Q0 && Reg <= ARM::Q15) { 2640a6ea83f393d06fb424c470777a1c3e8a8c50ab1Devang Patel assert(ARM::Q0 + 15 == ARM::Q15 && "Unexpected ARM Q register numbering"); 26571f3f1146f2ba2773f0467767b67c12258960f34Devang Patel // Q registers Q0-Q15 are described by composing two D registers together. 2668e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach // Qx = DW_OP_regx(256+2x) DW_OP_piece(8) DW_OP_regx(256+2x+1) 2678e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach // DW_OP_piece(8) 26871f3f1146f2ba2773f0467767b67c12258960f34Devang Patel 26971f3f1146f2ba2773f0467767b67c12258960f34Devang Patel unsigned QReg = Reg - ARM::Q0; 27071f3f1146f2ba2773f0467767b67c12258960f34Devang Patel unsigned D1 = 256 + 2 * QReg; 27171f3f1146f2ba2773f0467767b67c12258960f34Devang Patel unsigned D2 = D1 + 1; 2728e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach 27371f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("DW_OP_regx for Q register: D1"); 27471f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitInt8(dwarf::DW_OP_regx); 27571f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitULEB128(D1); 27671f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("DW_OP_piece 8"); 27771f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitInt8(dwarf::DW_OP_piece); 27871f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitULEB128(8); 27971f3f1146f2ba2773f0467767b67c12258960f34Devang Patel 28071f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("DW_OP_regx for Q register: D2"); 28171f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitInt8(dwarf::DW_OP_regx); 28271f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitULEB128(D2); 28371f3f1146f2ba2773f0467767b67c12258960f34Devang Patel OutStreamer.AddComment("DW_OP_piece 8"); 28471f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitInt8(dwarf::DW_OP_piece); 28571f3f1146f2ba2773f0467767b67c12258960f34Devang Patel EmitULEB128(8); 28627f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel } 28727f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel } 28827f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel} 28927f5acb7d49c3ca2e3f7fe13d97cc19a78b15e1aDevang Patel 2903e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbachvoid ARMAsmPrinter::EmitFunctionBodyEnd() { 2913e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach // Make sure to terminate any constant pools that were at the end 2923e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach // of the function. 2933e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach if (!InConstantPool) 2943e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach return; 2953e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach InConstantPool = false; 2963e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach OutStreamer.EmitDataRegion(MCDR_DataRegionEnd); 2973e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach} 2982fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2993e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbachvoid ARMAsmPrinter::EmitFunctionEntryLabel() { 300953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner if (AFI->isThumbFunction()) { 301ce79299f78bb04e76e1860ab119b85d69f3a19c7Jim Grosbach OutStreamer.EmitAssemblerFlag(MCAF_Code16); 3026469540adf63d94a876c2b623cb4ca70479647f7Rafael Espindola OutStreamer.EmitThumbFunc(CurrentFnSym); 303953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner } 304b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 305953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner OutStreamer.EmitLabel(CurrentFnSym); 306953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner} 307953ebb769ada06d22f8ae4963651530b9cb84830Chris Lattner 30834982576a43887e7f062ed0a3571af2cbab003f3James Molloyvoid ARMAsmPrinter::EmitXXStructor(const Constant *CV) { 3093574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow uint64_t Size = TM.getDataLayout()->getTypeAllocSize(CV->getType()); 31034982576a43887e7f062ed0a3571af2cbab003f3James Molloy assert(Size && "C++ constructor pointer had zero size!"); 31134982576a43887e7f062ed0a3571af2cbab003f3James Molloy 3124a1ff2fb3ecaa2576ecf9ed84816b174c235ac1dBill Wendling const GlobalValue *GV = dyn_cast<GlobalValue>(CV->stripPointerCasts()); 31334982576a43887e7f062ed0a3571af2cbab003f3James Molloy assert(GV && "C++ constructor pointer was not a GlobalValue!"); 31434982576a43887e7f062ed0a3571af2cbab003f3James Molloy 31534982576a43887e7f062ed0a3571af2cbab003f3James Molloy const MCExpr *E = MCSymbolRefExpr::Create(Mang->getSymbol(GV), 31634982576a43887e7f062ed0a3571af2cbab003f3James Molloy (Subtarget->isTargetDarwin() 31734982576a43887e7f062ed0a3571af2cbab003f3James Molloy ? MCSymbolRefExpr::VK_None 31834982576a43887e7f062ed0a3571af2cbab003f3James Molloy : MCSymbolRefExpr::VK_ARM_TARGET1), 31934982576a43887e7f062ed0a3571af2cbab003f3James Molloy OutContext); 32034982576a43887e7f062ed0a3571af2cbab003f3James Molloy 32134982576a43887e7f062ed0a3571af2cbab003f3James Molloy OutStreamer.EmitValue(E, Size); 32234982576a43887e7f062ed0a3571af2cbab003f3James Molloy} 32334982576a43887e7f062ed0a3571af2cbab003f3James Molloy 3242317e40539aac11da00bd587b5f0def04d989769Jim Grosbach/// runOnMachineFunction - This uses the EmitInstruction() 3257bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola/// method to print assembly for each instruction. 3267bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola/// 3277bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindolabool ARMAsmPrinter::runOnMachineFunction(MachineFunction &MF) { 328a8e2989ece6dc46df59b0768184028257f913843Evan Cheng AFI = MF.getInfo<ARMFunctionInfo>(); 3296d63a728586d56eb3e881905beb9db27f520f5d3Evan Cheng MCP = MF.getConstantPool(); 330a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 331d49fe1b6bc4615684c2ec71140a21e9c4cd69ce3Chris Lattner return AsmPrinter::runOnMachineFunction(MF); 33232bd5f4f6a374f9ab0fcbd2cf6a8561019a6fd56Rafael Espindola} 33332bd5f4f6a374f9ab0fcbd2cf6a8561019a6fd56Rafael Espindola 334055b0310f862b91f33699037ce67d3ab8137c20cEvan Chengvoid ARMAsmPrinter::printOperand(const MachineInstr *MI, int OpNum, 33535c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner raw_ostream &O, const char *Modifier) { 336055b0310f862b91f33699037ce67d3ab8137c20cEvan Cheng const MachineOperand &MO = MI->getOperand(OpNum); 3375cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov unsigned TF = MO.getTargetFlags(); 3385cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov 3392f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola switch (MO.getType()) { 340bc2198133a1836598b54b943420748e75d5dea94Craig Topper default: llvm_unreachable("<unknown operand type>"); 3415bafff36c798608a189c517d37527e4a38863071Bob Wilson case MachineOperand::MO_Register: { 3425bafff36c798608a189c517d37527e4a38863071Bob Wilson unsigned Reg = MO.getReg(); 3438bc86cba60fbb35fbfb52cc32b9e451e6b903a27Chris Lattner assert(TargetRegisterInfo::isPhysicalRegister(Reg)); 34435636281c7ab6eb128b4ced6bf7ae0b6b8458dd2Jim Grosbach assert(!MO.getSubReg() && "Subregs should be eliminated!"); 3457248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao if(ARM::GPRPairRegClass.contains(Reg)) { 3467248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao const MachineFunction &MF = *MI->getParent()->getParent(); 3477248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao const TargetRegisterInfo *TRI = MF.getTarget().getRegisterInfo(); 3487248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao Reg = TRI->getSubReg(Reg, ARM::gsub_0); 3497248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao } 35035636281c7ab6eb128b4ced6bf7ae0b6b8458dd2Jim Grosbach O << ARMInstPrinter::getRegisterName(Reg); 3512f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 3525bafff36c798608a189c517d37527e4a38863071Bob Wilson } 353a8e2989ece6dc46df59b0768184028257f913843Evan Cheng case MachineOperand::MO_Immediate: { 3545adb66a646e2ec32265263739f5b01c3f50c176aEvan Cheng int64_t Imm = MO.getImm(); 355632606c724ebcfa6a9da71c443151e7a65829c99Anton Korobeynikov O << '#'; 3565cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov if ((Modifier && strcmp(Modifier, "lo16") == 0) || 357650b7d76afbc7db2dd1a4590149d50a162bb25d8Jason W Kim (TF == ARMII::MO_LO16)) 3585cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov O << ":lower16:"; 3595cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov else if ((Modifier && strcmp(Modifier, "hi16") == 0) || 360650b7d76afbc7db2dd1a4590149d50a162bb25d8Jason W Kim (TF == ARMII::MO_HI16)) 3615cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov O << ":upper16:"; 362632606c724ebcfa6a9da71c443151e7a65829c99Anton Korobeynikov O << Imm; 3632f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 364a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 3652f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola case MachineOperand::MO_MachineBasicBlock: 3661b2eb0e8a6aaf034675b17be6d853cb1c666200fChris Lattner O << *MO.getMBB()->getSymbol(); 3672f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola return; 36884b19be6ab9544f72eafb11048a1121f5ea77c95Rafael Espindola case MachineOperand::MO_GlobalAddress: { 36946510a73e977273ec67747eb34cbdb43f815e451Dan Gohman const GlobalValue *GV = MO.getGlobal(); 3705cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov if ((Modifier && strcmp(Modifier, "lo16") == 0) || 3715cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov (TF & ARMII::MO_LO16)) 3725cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov O << ":lower16:"; 3735cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov else if ((Modifier && strcmp(Modifier, "hi16") == 0) || 3745cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov (TF & ARMII::MO_HI16)) 3755cdc3a949af0cef7f2163f8a7acbf3049c226321Anton Korobeynikov O << ":upper16:"; 376d62f1b4168d4327c119642d28c26c836ae6717abChris Lattner O << *Mang->getSymbol(GV); 3777751ad92daeea5a3502fbc266ae814baec5c03e6Anton Korobeynikov 3780c08d092049c025c9ccf7143e39f39dc4e30d6b4Chris Lattner printOffset(MO.getOffset(), O); 3791d6111c5ac97c321782637b2cd72e2c3e4d3d694Jim Grosbach if (TF == ARMII::MO_PLT) 3800ae4a3357a556261f25b1584a2d9914637c69e65Lauro Ramos Venancio O << "(PLT)"; 3812f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 382a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 383a8e2989ece6dc46df59b0768184028257f913843Evan Cheng case MachineOperand::MO_ExternalSymbol: { 38410b318bcb39218d2ed525e4862c854bc8d1baf63Chris Lattner O << *GetExternalSymbolSymbol(MO.getSymbolName()); 3851d6111c5ac97c321782637b2cd72e2c3e4d3d694Jim Grosbach if (TF == ARMII::MO_PLT) 3860ae4a3357a556261f25b1584a2d9914637c69e65Lauro Ramos Venancio O << "(PLT)"; 3872f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 388a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 3892f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola case MachineOperand::MO_ConstantPoolIndex: 3901b46f433e02155daba8ed3b1269c86ce63c9713bChris Lattner O << *GetCPISymbol(MO.getIndex()); 3912f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola break; 392a8e2989ece6dc46df59b0768184028257f913843Evan Cheng case MachineOperand::MO_JumpTableIndex: 3931b46f433e02155daba8ed3b1269c86ce63c9713bChris Lattner O << *GetJTISymbol(MO.getIndex()); 394a8e2989ece6dc46df59b0768184028257f913843Evan Cheng break; 3952f99b6bd9601ae8d4fd248f9bb701283795c38a8Rafael Espindola } 3967bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola} 3977bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 398055b0310f862b91f33699037ce67d3ab8137c20cEvan Cheng//===--------------------------------------------------------------------===// 399055b0310f862b91f33699037ce67d3ab8137c20cEvan Cheng 4000890cf124f00da3dc943c1882f4221955e0281edChris LattnerMCSymbol *ARMAsmPrinter:: 4010890cf124f00da3dc943c1882f4221955e0281edChris LattnerGetARMJTIPICJumpTableLabel2(unsigned uid, unsigned uid2) const { 4020890cf124f00da3dc943c1882f4221955e0281edChris Lattner SmallString<60> Name; 4030890cf124f00da3dc943c1882f4221955e0281edChris Lattner raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "JTI" 404281e7767df71b3f727ade80a16ff0c4fe5a49dd9Chris Lattner << getFunctionNumber() << '_' << uid << '_' << uid2; 4059b97a73dedf736e14b04a3d1a153f10d25b2507bChris Lattner return OutContext.GetOrCreateSymbol(Name.str()); 406bfcb09688c7db15a9f9415d717a5a31c499a2208Chris Lattner} 407bfcb09688c7db15a9f9415d717a5a31c499a2208Chris Lattner 408433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach 40979c07d2a36282b09b9c5d0aa65ebf4bff017621bDmitri GribenkoMCSymbol *ARMAsmPrinter::GetARMSJLJEHLabel() const { 410433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach SmallString<60> Name; 411433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "SJLJEH" 412433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach << getFunctionNumber(); 413433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach return OutContext.GetOrCreateSymbol(Name.str()); 414433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach} 415433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach 416055b0310f862b91f33699037ce67d3ab8137c20cEvan Chengbool ARMAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum, 417c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner unsigned AsmVariant, const char *ExtraCode, 418c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner raw_ostream &O) { 419a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // Does this asm operand have a single letter operand modifier? 420a8e2989ece6dc46df59b0768184028257f913843Evan Cheng if (ExtraCode && ExtraCode[0]) { 421a8e2989ece6dc46df59b0768184028257f913843Evan Cheng if (ExtraCode[1] != 0) return true; // Unknown modifier. 4228e9ece75db5045ec057efbbdba6550fa0d85e695Anton Korobeynikov 423a8e2989ece6dc46df59b0768184028257f913843Evan Cheng switch (ExtraCode[0]) { 4240518fca843ff87d069ecb07fc00d306c1f587d58Jack Carter default: 4250518fca843ff87d069ecb07fc00d306c1f587d58Jack Carter // See if this is a generic print operand 4260518fca843ff87d069ecb07fc00d306c1f587d58Jack Carter return AsmPrinter::PrintAsmOperand(MI, OpNum, AsmVariant, ExtraCode, O); 4279b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson case 'a': // Print as a memory address. 4289b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson if (MI->getOperand(OpNum).isReg()) { 4292f24c4ece09f1157c5cb29357d91d2a0d77eb57cJim Grosbach O << "[" 4302f24c4ece09f1157c5cb29357d91d2a0d77eb57cJim Grosbach << ARMInstPrinter::getRegisterName(MI->getOperand(OpNum).getReg()) 4312f24c4ece09f1157c5cb29357d91d2a0d77eb57cJim Grosbach << "]"; 4329b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson return false; 4339b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson } 4349b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson // Fallthrough 4359b4b00ad436daeac6f97f77e9b5a3cc67ada150cBob Wilson case 'c': // Don't print "#" before an immediate operand. 4364f38b383d5089c49489a9a56d8efd0eb76048b3fBob Wilson if (!MI->getOperand(OpNum).isImm()) 4374f38b383d5089c49489a9a56d8efd0eb76048b3fBob Wilson return true; 4382317e40539aac11da00bd587b5f0def04d989769Jim Grosbach O << MI->getOperand(OpNum).getImm(); 4398f3434647d3d39b49475239e3be1b8afb06415cfBob Wilson return false; 440e21e39666e8a41ffd4971d8bb023b70b59297267Evan Cheng case 'P': // Print a VFP double precision register. 441d831cda3e74235704f163d5a18352584d537517aEvan Cheng case 'q': // Print a NEON quad precision register. 44235c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner printOperand(MI, OpNum, O); 44323a95704949b99ca07afe45c6946d0fa26baf9f3Evan Cheng return false; 4440628d38085b28a59a4b13d7e35760cce54f0af7aEric Christopher case 'y': // Print a VFP single precision register as indexed double. 4450628d38085b28a59a4b13d7e35760cce54f0af7aEric Christopher if (MI->getOperand(OpNum).isReg()) { 4460628d38085b28a59a4b13d7e35760cce54f0af7aEric Christopher unsigned Reg = MI->getOperand(OpNum).getReg(); 4470628d38085b28a59a4b13d7e35760cce54f0af7aEric Christopher const TargetRegisterInfo *TRI = MF->getTarget().getRegisterInfo(); 4484c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen // Find the 'd' register that has this 's' register as a sub-register, 4494c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen // and determine the lane number. 4504c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen for (MCSuperRegIterator SR(Reg, TRI); SR.isValid(); ++SR) { 4514c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen if (!ARM::DPRRegClass.contains(*SR)) 4524c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen continue; 4534c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen bool Lane0 = TRI->getSubReg(*SR, ARM::ssub_0) == Reg; 4544c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen O << ARMInstPrinter::getRegisterName(*SR) << (Lane0 ? "[0]" : "[1]"); 4554c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen return false; 4564c91bdafacd7387fd92fb153de3d48ef7722bbd2Jakob Stoklund Olesen } 4570628d38085b28a59a4b13d7e35760cce54f0af7aEric Christopher } 4584db7dec70b06a1d50a265c3666e126065e09f396Eric Christopher return true; 459fef50062eae28fc6d893cd3ef528f8ca85cd50b0Eric Christopher case 'B': // Bitwise inverse of integer or symbol without a preceding #. 460e1739d598d2c980822cc42bbf9821b91ebbc829fEric Christopher if (!MI->getOperand(OpNum).isImm()) 461e1739d598d2c980822cc42bbf9821b91ebbc829fEric Christopher return true; 462e1739d598d2c980822cc42bbf9821b91ebbc829fEric Christopher O << ~(MI->getOperand(OpNum).getImm()); 463e1739d598d2c980822cc42bbf9821b91ebbc829fEric Christopher return false; 464fef50062eae28fc6d893cd3ef528f8ca85cd50b0Eric Christopher case 'L': // The low 16 bits of an immediate constant. 4654db7dec70b06a1d50a265c3666e126065e09f396Eric Christopher if (!MI->getOperand(OpNum).isImm()) 4664db7dec70b06a1d50a265c3666e126065e09f396Eric Christopher return true; 4674db7dec70b06a1d50a265c3666e126065e09f396Eric Christopher O << (MI->getOperand(OpNum).getImm() & 0xffff); 4684db7dec70b06a1d50a265c3666e126065e09f396Eric Christopher return false; 4693c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher case 'M': { // A register range suitable for LDM/STM. 4703c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher if (!MI->getOperand(OpNum).isReg()) 4713c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher return true; 4723c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher const MachineOperand &MO = MI->getOperand(OpNum); 4733c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher unsigned RegBegin = MO.getReg(); 4743c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher // This takes advantage of the 2 operand-ness of ldm/stm and that we've 4753c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher // already got the operands in registers that are operands to the 4763c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher // inline asm statement. 4778e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach 4783c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher O << "{" << ARMInstPrinter::getRegisterName(RegBegin); 4798e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach 4803c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher // FIXME: The register allocator not only may not have given us the 4813c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher // registers in sequence, but may not be in ascending registers. This 4823c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher // will require changes in the register allocator that'll need to be 4833c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher // propagated down here if the operands change. 4843c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher unsigned RegOps = OpNum + 1; 4853c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher while (MI->getOperand(RegOps).isReg()) { 4868e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach O << ", " 4873c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher << ARMInstPrinter::getRegisterName(MI->getOperand(RegOps).getReg()); 4883c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher RegOps++; 4893c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher } 4903c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher 4913c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher O << "}"; 4923c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher 4933c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher return false; 4943c14f24c9da3f811d3530e984e692acf1a471b91Eric Christopher } 495f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola case 'R': // The most significant register of a pair. 496f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola case 'Q': { // The least significant register of a pair. 497f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola if (OpNum == 0) 498f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola return true; 499f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola const MachineOperand &FlagsOP = MI->getOperand(OpNum - 1); 500f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola if (!FlagsOP.isImm()) 501f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola return true; 502f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola unsigned Flags = FlagsOP.getImm(); 503f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola unsigned NumVals = InlineAsm::getNumOperandRegisters(Flags); 504f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola if (NumVals != 2) 505f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola return true; 506f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola unsigned RegOp = ExtraCode[0] == 'Q' ? OpNum : OpNum + 1; 507f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola if (RegOp >= MI->getNumOperands()) 508f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola return true; 509f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola const MachineOperand &MO = MI->getOperand(RegOp); 510f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola if (!MO.isReg()) 511f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola return true; 512f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola unsigned Reg = MO.getReg(); 513f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola O << ARMInstPrinter::getRegisterName(Reg); 514f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola return false; 515f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola } 516f5ade5d39abe5cb12a8202c604321d5992e4a168Rafael Espindola 517fef50062eae28fc6d893cd3ef528f8ca85cd50b0Eric Christopher case 'e': // The low doubleword register of a NEON quad register. 5189cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson case 'f': { // The high doubleword register of a NEON quad register. 5199cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson if (!MI->getOperand(OpNum).isReg()) 5209cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson return true; 5219cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson unsigned Reg = MI->getOperand(OpNum).getReg(); 5229cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson if (!ARM::QPRRegClass.contains(Reg)) 5239cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson return true; 5249cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson const TargetRegisterInfo *TRI = MF->getTarget().getRegisterInfo(); 5259cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson unsigned SubReg = TRI->getSubReg(Reg, ExtraCode[0] == 'e' ? 5269cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson ARM::dsub_0 : ARM::dsub_1); 5279cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson O << ARMInstPrinter::getRegisterName(SubReg); 5289cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson return false; 5299cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson } 5309cd2b9562d23909937ab2e4bb45c2a1ed4c86816Bob Wilson 531001d219b9729684ea514068cff1cf79cd2e71121Eric Christopher // This modifier is not yet supported. 532fef50062eae28fc6d893cd3ef528f8ca85cd50b0Eric Christopher case 'h': // A range of VFP/NEON registers suitable for VLD1/VST1. 533d984eb6073d5445f08fb0cea67a668b1b5e888e0Bob Wilson return true; 5346eef0e2f8767ee691413bf8344e1d2db527c8a43Eric Christopher case 'H': { // The highest-numbered register of a pair. 535001d219b9729684ea514068cff1cf79cd2e71121Eric Christopher const MachineOperand &MO = MI->getOperand(OpNum); 536001d219b9729684ea514068cff1cf79cd2e71121Eric Christopher if (!MO.isReg()) 537001d219b9729684ea514068cff1cf79cd2e71121Eric Christopher return true; 538001d219b9729684ea514068cff1cf79cd2e71121Eric Christopher const MachineFunction &MF = *MI->getParent()->getParent(); 539001d219b9729684ea514068cff1cf79cd2e71121Eric Christopher const TargetRegisterInfo *TRI = MF.getTarget().getRegisterInfo(); 5407248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao unsigned Reg = MO.getReg(); 5417248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao if(!ARM::GPRPairRegClass.contains(Reg)) 5427248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao return false; 5437248451c4307c05cf3ddfa8133f0c5334bab6455Weiming Zhao Reg = TRI->getSubReg(Reg, ARM::gsub_1); 544001d219b9729684ea514068cff1cf79cd2e71121Eric Christopher O << ARMInstPrinter::getRegisterName(Reg); 545001d219b9729684ea514068cff1cf79cd2e71121Eric Christopher return false; 54684f60b7359e1aa90794bb19de2bbf4d25dc2f01dEvan Cheng } 5476eef0e2f8767ee691413bf8344e1d2db527c8a43Eric Christopher } 548a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 549e9952213086c865eb678bd3f4c9c7d849f0249d2Jim Grosbach 55035c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner printOperand(MI, OpNum, O); 551a8e2989ece6dc46df59b0768184028257f913843Evan Cheng return false; 552a8e2989ece6dc46df59b0768184028257f913843Evan Cheng} 553a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 554224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilsonbool ARMAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, 555055b0310f862b91f33699037ce67d3ab8137c20cEvan Cheng unsigned OpNum, unsigned AsmVariant, 556c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner const char *ExtraCode, 557c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner raw_ostream &O) { 5588f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher // Does this asm operand have a single letter operand modifier? 5598f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher if (ExtraCode && ExtraCode[0]) { 5608f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher if (ExtraCode[1] != 0) return true; // Unknown modifier. 5618e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach 5628f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher switch (ExtraCode[0]) { 56332bfb2c513c4efdc1db9967ddfecce8c922dda4fEric Christopher case 'A': // A memory operand for a VLD1/VST1 instruction. 5648f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher default: return true; // Unknown modifier. 5658f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher case 'm': // The base register of a memory operand. 5668f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher if (!MI->getOperand(OpNum).isReg()) 5678f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher return true; 5688f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher O << ARMInstPrinter::getRegisterName(MI->getOperand(OpNum).getReg()); 5698f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher return false; 5708f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher } 5718f8946389418ce3cdbf69bbf34443efe0c874b40Eric Christopher } 5728e0c7697fd9b9354856074efc06eea9f6d80015cJim Grosbach 573765cc0b9d59bf63dfcb02e3d126ea1c63e16f86fBob Wilson const MachineOperand &MO = MI->getOperand(OpNum); 574765cc0b9d59bf63dfcb02e3d126ea1c63e16f86fBob Wilson assert(MO.isReg() && "unexpected inline asm memory operand"); 5752317e40539aac11da00bd587b5f0def04d989769Jim Grosbach O << "[" << ARMInstPrinter::getRegisterName(MO.getReg()) << "]"; 576224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilson return false; 577224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilson} 578224c244f56025c10e70e4204daceadfb3cdd2c06Bob Wilson 579812209a58c5520c604bc9279aa069e5ae066e860Bob Wilsonvoid ARMAsmPrinter::EmitStartOfAsmFile(Module &M) { 5800fb34683b9e33238288d2af1e090582464df8387Bob Wilson if (Subtarget->isTargetDarwin()) { 5810fb34683b9e33238288d2af1e090582464df8387Bob Wilson Reloc::Model RelocM = TM.getRelocationModel(); 5820fb34683b9e33238288d2af1e090582464df8387Bob Wilson if (RelocM == Reloc::PIC_ || RelocM == Reloc::DynamicNoPIC) { 5830fb34683b9e33238288d2af1e090582464df8387Bob Wilson // Declare all the text sections up front (before the DWARF sections 5840fb34683b9e33238288d2af1e090582464df8387Bob Wilson // emitted by AsmPrinter::doInitialization) so the assembler will keep 5850fb34683b9e33238288d2af1e090582464df8387Bob Wilson // them together at the beginning of the object file. This helps 5860fb34683b9e33238288d2af1e090582464df8387Bob Wilson // avoid out-of-range branches that are due a fundamental limitation of 5870fb34683b9e33238288d2af1e090582464df8387Bob Wilson // the way symbol offsets are encoded with the current Darwin ARM 5880fb34683b9e33238288d2af1e090582464df8387Bob Wilson // relocations. 589b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach const TargetLoweringObjectFileMachO &TLOFMacho = 5900d805c33d134d88169e3dc4a3272cff9a5713ce7Dan Gohman static_cast<const TargetLoweringObjectFileMachO &>( 5910d805c33d134d88169e3dc4a3272cff9a5713ce7Dan Gohman getObjFileLowering()); 592837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach 593837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach // Collect the set of sections our functions will go into. 594837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach SetVector<const MCSection *, SmallVector<const MCSection *, 8>, 595837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach SmallPtrSet<const MCSection *, 8> > TextSections; 596837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach // Default text section comes first. 597837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach TextSections.insert(TLOFMacho.getTextSection()); 598837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach // Now any user defined text sections from function attributes. 599837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach for (Module::iterator F = M.begin(), e = M.end(); F != e; ++F) 600837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach if (!F->isDeclaration() && !F->hasAvailableExternallyLinkage()) 601837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach TextSections.insert(TLOFMacho.SectionForGlobal(F, Mang, TM)); 602837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach // Now the coalescable sections. 603837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach TextSections.insert(TLOFMacho.getTextCoalSection()); 604837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach TextSections.insert(TLOFMacho.getConstTextCoalSection()); 605837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach 606837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach // Emit the sections in the .s file header to fix the order. 607837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach for (unsigned i = 0, e = TextSections.size(); i != e; ++i) 608837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach OutStreamer.SwitchSection(TextSections[i]); 609837c28a84076e1cd63bbf29057b791ebe6b03de0Jim Grosbach 61029e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson if (RelocM == Reloc::DynamicNoPIC) { 61129e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson const MCSection *sect = 61222772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner OutContext.getMachOSection("__TEXT", "__symbol_stub4", 61322772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner MCSectionMachO::S_SYMBOL_STUBS, 61422772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner 12, SectionKind::getText()); 61529e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson OutStreamer.SwitchSection(sect); 61629e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson } else { 61729e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson const MCSection *sect = 61822772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner OutContext.getMachOSection("__TEXT", "__picsymbolstub4", 61922772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner MCSectionMachO::S_SYMBOL_STUBS, 62022772214de79aa1c5ca38c4fb1da137d8fb30a05Chris Lattner 16, SectionKind::getText()); 62129e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson OutStreamer.SwitchSection(sect); 62229e066965fb84b3aad2840815c6d0602dafb0b17Bob Wilson } 62363db594559dc8eac666204c7907bae664f5234daBob Wilson const MCSection *StaticInitSect = 62463db594559dc8eac666204c7907bae664f5234daBob Wilson OutContext.getMachOSection("__TEXT", "__StaticInit", 62563db594559dc8eac666204c7907bae664f5234daBob Wilson MCSectionMachO::S_REGULAR | 62663db594559dc8eac666204c7907bae664f5234daBob Wilson MCSectionMachO::S_ATTR_PURE_INSTRUCTIONS, 62763db594559dc8eac666204c7907bae664f5234daBob Wilson SectionKind::getText()); 62863db594559dc8eac666204c7907bae664f5234daBob Wilson OutStreamer.SwitchSection(StaticInitSect); 6290fb34683b9e33238288d2af1e090582464df8387Bob Wilson } 6300fb34683b9e33238288d2af1e090582464df8387Bob Wilson } 6310fb34683b9e33238288d2af1e090582464df8387Bob Wilson 632e5165490b7ba24bb2f3043399e0d60e7f3bcf8a5Jim Grosbach // Use unified assembler syntax. 633afd1cc25786f68ca56a63d29ea2bd297990e9f81Jason W Kim OutStreamer.EmitAssemblerFlag(MCAF_SyntaxUnified); 634d61eca533081580d56fabee38f86507d8019ca75Anton Korobeynikov 63588ce667003a33e008d9ecc6811584681787e8150Anton Korobeynikov // Emit ARM Build Attributes 63607043279f60622243d16d8a3f60805960482083cEvan Cheng if (Subtarget->isTargetELF()) 637def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim emitAttributes(); 6387bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola} 6397bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola 6400f3cc657387d44cd7c56e4ddea896a50ab9106b8Anton Korobeynikov 6414a071d667d995b00e7853243ff9c7c1269324478Chris Lattnervoid ARMAsmPrinter::EmitEndOfAsmFile(Module &M) { 6425be54b00bdbe1abd02dde46ca2c4b0e5aaf7b537Evan Cheng if (Subtarget->isTargetDarwin()) { 643f61159b574155b056dbd5d6d44f47f753d424056Chris Lattner // All darwin targets use mach-o. 6440d805c33d134d88169e3dc4a3272cff9a5713ce7Dan Gohman const TargetLoweringObjectFileMachO &TLOFMacho = 6450d805c33d134d88169e3dc4a3272cff9a5713ce7Dan Gohman static_cast<const TargetLoweringObjectFileMachO &>(getObjFileLowering()); 646b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner MachineModuleInfoMachO &MMIMacho = 647b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner MMI->getObjFileInfo<MachineModuleInfoMachO>(); 648e9952213086c865eb678bd3f4c9c7d849f0249d2Jim Grosbach 649a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // Output non-lazy-pointers for external and common global variables. 650b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner MachineModuleInfoMachO::SymbolListTy Stubs = MMIMacho.GetGVStubList(); 651cebae36f57456fe6b0e13726acd1e0250654f02dBill Wendling 652b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner if (!Stubs.empty()) { 653ff4bc460c52c1f285d8a56da173641bf92d49e3fChris Lattner // Switch with ".non_lazy_symbol_pointer" directive. 6546c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner OutStreamer.SwitchSection(TLOFMacho.getNonLazySymbolPointerSection()); 655c076a9793936b140364671a5e39ee53bd266c6c3Chris Lattner EmitAlignment(2); 656b0f294c14b4e7098e5170ecfd528bcc9682ce0c7Chris Lattner for (unsigned i = 0, e = Stubs.size(); i != e; ++i) { 657becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling // L_foo$stub: 658becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling OutStreamer.EmitLabel(Stubs[i].first); 659becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling // .indirect_symbol _foo 66052a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling MachineModuleInfoImpl::StubValueTy &MCSym = Stubs[i].second; 66152a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling OutStreamer.EmitSymbolAttribute(MCSym.getPointer(),MCSA_IndirectSymbol); 662cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling 66352a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling if (MCSym.getInt()) 664cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling // External to current translation unit. 6651ced208be9cab0f994c5df9000da36bc313b2507Eric Christopher OutStreamer.EmitIntValue(0, 4/*size*/); 666cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling else 667cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling // Internal to current translation unit. 6685e1b55d67288874f8669621b9176814ce449f8f5Bill Wendling // 6691b935a3d2e2619c7de2488163fc1501285b53fa3Jim Grosbach // When we place the LSDA into the TEXT section, the type info 6701b935a3d2e2619c7de2488163fc1501285b53fa3Jim Grosbach // pointers need to be indirect and pc-rel. We accomplish this by 6711b935a3d2e2619c7de2488163fc1501285b53fa3Jim Grosbach // using NLPs; however, sometimes the types are local to the file. 6721b935a3d2e2619c7de2488163fc1501285b53fa3Jim Grosbach // We need to fill in the value for the NLP in those cases. 67352a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling OutStreamer.EmitValue(MCSymbolRefExpr::Create(MCSym.getPointer(), 67452a50e5d0e6ac08d86706dbdd8f4a5dbb44da4cbBill Wendling OutContext), 6751ced208be9cab0f994c5df9000da36bc313b2507Eric Christopher 4/*size*/); 676ae94e594164b193236002516970aeec4c4574768Evan Cheng } 677becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling 678becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling Stubs.clear(); 679becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling OutStreamer.AddBlankLine(); 680a8e2989ece6dc46df59b0768184028257f913843Evan Cheng } 681a8e2989ece6dc46df59b0768184028257f913843Evan Cheng 682e4d9ea83c0d4bcc535bd978e1afa599eb3ebb893Chris Lattner Stubs = MMIMacho.GetHiddenGVStubList(); 683e4d9ea83c0d4bcc535bd978e1afa599eb3ebb893Chris Lattner if (!Stubs.empty()) { 6846c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner OutStreamer.SwitchSection(getObjFileLowering().getDataSection()); 685f3231de60bb64c3f6fc6770b3e6174f4f839a4f3Chris Lattner EmitAlignment(2); 686becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling for (unsigned i = 0, e = Stubs.size(); i != e; ++i) { 687becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling // L_foo$stub: 688becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling OutStreamer.EmitLabel(Stubs[i].first); 689becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling // .long _foo 690cebae36f57456fe6b0e13726acd1e0250654f02dBill Wendling OutStreamer.EmitValue(MCSymbolRefExpr:: 691cebae36f57456fe6b0e13726acd1e0250654f02dBill Wendling Create(Stubs[i].second.getPointer(), 692cebae36f57456fe6b0e13726acd1e0250654f02dBill Wendling OutContext), 6931ced208be9cab0f994c5df9000da36bc313b2507Eric Christopher 4/*size*/); 694becd83e3f4eb996f8e43189ce482267b3b8351a8Bill Wendling } 695cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling 696cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling Stubs.clear(); 697cf6f28d84af09b38e96307007cd93760a7ca42d7Bill Wendling OutStreamer.AddBlankLine(); 698ae94e594164b193236002516970aeec4c4574768Evan Cheng } 699ae94e594164b193236002516970aeec4c4574768Evan Cheng 700a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // Funny Darwin hack: This flag tells the linker that no global symbols 701a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // contain code that falls through to other global symbols (e.g. the obvious 702a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // implementation of multiple entry points). If this doesn't occur, the 703a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // linker can safely perform dead code stripping. Since LLVM never 704a8e2989ece6dc46df59b0768184028257f913843Evan Cheng // generates code that does this, it is always safe to set. 705a5ad93a10a5435f21090b09edb6b3a7e44967648Chris Lattner OutStreamer.EmitAssemblerFlag(MCAF_SubsectionsViaSymbols); 706b01c4bbb4573e0007444e218b683840e4519e0c8Rafael Espindola } 70797130e2b3de080e231caac86dbce1500e4e7af16Jack Carter // FIXME: This should eventually end up somewhere else where more 70897130e2b3de080e231caac86dbce1500e4e7af16Jack Carter // intelligent flag decisions can be made. For now we are just maintaining 70997130e2b3de080e231caac86dbce1500e4e7af16Jack Carter // the status quo for ARM and setting EF_ARM_EABI_VER5 as the default. 71027aacedf7d975243170206efb948a20d6fd4a2c1Chandler Carruth if (MCELFStreamer *MES = dyn_cast<MCELFStreamer>(&OutStreamer)) 71127aacedf7d975243170206efb948a20d6fd4a2c1Chandler Carruth MES->getAssembler().setELFHeaderEFlags(ELF::EF_ARM_EABI_VER5); 7127bc59bc3952ad7842b1e079753deb32217a768a3Rafael Espindola} 7130bd89712c03c59ea43ce37763685e7f7c0bdd977Anton Korobeynikov 71497f06937449c593a248dbbb1365e6ae408fb9decChris Lattner//===----------------------------------------------------------------------===// 715def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim// Helper routines for EmitStartOfAsmFile() and EmitEndOfAsmFile() 716def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim// FIXME: 717def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim// The following seem like one-off assembler flags, but they actually need 718fa7fb64fad0e46e7329e4ba84a1edec5e979c31aJim Grosbach// to appear in the .ARM.attributes section in ELF. 719def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim// Instead of subclassing the MCELFStreamer, we do the work here. 720def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 721def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kimvoid ARMAsmPrinter::emitAttributes() { 722fa7fb64fad0e46e7329e4ba84a1edec5e979c31aJim Grosbach 72317b443df4368acfad853d09858c033c45c468d5cJason W Kim emitARMAttributeSection(); 72417b443df4368acfad853d09858c033c45c468d5cJason W Kim 725728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* GAS expect .fpu to be emitted, regardless of VFP build attribute */ 726728ff0db783152ed4f21f7746bd7874b49708172Renato Golin bool emitFPU = false; 727cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttributeEmitter *AttrEmitter; 728728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (OutStreamer.hasRawTextSupport()) { 729cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter = new AsmAttributeEmitter(OutStreamer); 730728ff0db783152ed4f21f7746bd7874b49708172Renato Golin emitFPU = true; 731728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } else { 732cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola MCObjectStreamer &O = static_cast<MCObjectStreamer&>(OutStreamer); 733cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter = new ObjectAttributeEmitter(O); 734cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola } 735cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 736cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->MaybeSwitchVendor("aeabi"); 737cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 738def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim std::string CPUString = Subtarget->getCPUString(); 739f009a961caa75465999ef3bc764984d97a7da331Jason W Kim 740f009a961caa75465999ef3bc764984d97a7da331Jason W Kim if (CPUString == "cortex-a8" || 741f009a961caa75465999ef3bc764984d97a7da331Jason W Kim Subtarget->isCortexA8()) { 742c046d64f1b5f19cb06616e519a45bc4b0693f9d3Jason W Kim AttrEmitter->EmitTextAttribute(ARMBuildAttrs::CPU_name, "cortex-a8"); 743f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v7); 744f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch_profile, 745f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::ApplicationProfile); 746f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ARM_ISA_use, 747f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 748f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::THUMB_ISA_use, 749f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::AllowThumb32); 750f009a961caa75465999ef3bc764984d97a7da331Jason W Kim // Fixme: figure out when this is emitted. 751f009a961caa75465999ef3bc764984d97a7da331Jason W Kim //AttrEmitter->EmitAttribute(ARMBuildAttrs::WMMX_arch, 752f009a961caa75465999ef3bc764984d97a7da331Jason W Kim // ARMBuildAttrs::AllowWMMXv1); 753f009a961caa75465999ef3bc764984d97a7da331Jason W Kim // 754f009a961caa75465999ef3bc764984d97a7da331Jason W Kim 755f009a961caa75465999ef3bc764984d97a7da331Jason W Kim /// ADD additional Else-cases here! 756b8adb8af0fa9d1405fcf2edb95f4b1b8d1904716Rafael Espindola } else if (CPUString == "xscale") { 757b8adb8af0fa9d1405fcf2edb95f4b1b8d1904716Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v5TEJ); 758b8adb8af0fa9d1405fcf2edb95f4b1b8d1904716Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ARM_ISA_use, 759b8adb8af0fa9d1405fcf2edb95f4b1b8d1904716Rafael Espindola ARMBuildAttrs::Allowed); 760b8adb8af0fa9d1405fcf2edb95f4b1b8d1904716Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::THUMB_ISA_use, 761b8adb8af0fa9d1405fcf2edb95f4b1b8d1904716Rafael Espindola ARMBuildAttrs::Allowed); 762f009a961caa75465999ef3bc764984d97a7da331Jason W Kim } else if (CPUString == "generic") { 763214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson // For a generic CPU, we assume a standard v7a architecture in Subtarget. 764214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v7); 765214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch_profile, 766214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson ARMBuildAttrs::ApplicationProfile); 767f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ARM_ISA_use, 768f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 769f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::THUMB_ISA_use, 770214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson ARMBuildAttrs::AllowThumb32); 771214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson } else if (Subtarget->hasV7Ops()) { 772214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v7); 773214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::THUMB_ISA_use, 774214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson ARMBuildAttrs::AllowThumb32); 775214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson } else if (Subtarget->hasV6T2Ops()) 776214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v6T2); 777214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson else if (Subtarget->hasV6Ops()) 778214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v6); 779214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson else if (Subtarget->hasV5TEOps()) 780214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v5TE); 781214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson else if (Subtarget->hasV5TOps()) 782214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v5T); 783214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson else if (Subtarget->hasV4TOps()) 784214fd3d2449738bbe0215dce24406dc29d9e49f7Amara Emerson AttrEmitter->EmitAttribute(ARMBuildAttrs::CPU_arch, ARMBuildAttrs::v4T); 785def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 786e89a05337a9946040251a5f19165c41b9a1a7b27Renato Golin if (Subtarget->hasNEON() && emitFPU) { 787728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* NEON is not exactly a VFP architecture, but GAS emit one of 7884b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov * neon/neon-vfpv4/vfpv3/vfpv2 for .fpu parameters */ 789bee78fe5fcd8464f58bc729dede1a87d763ac3aeEvan Cheng if (Subtarget->hasVFP4()) 790d4f020a3af325630973df8d3a084d0b0e3b68ebcJim Grosbach AttrEmitter->EmitTextAttribute(ARMBuildAttrs::Advanced_SIMD_arch, 791d4f020a3af325630973df8d3a084d0b0e3b68ebcJim Grosbach "neon-vfpv4"); 7924b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov else 79374bebde7c4e2d1cfd4a16c19ce3c87521df67639Sebastian Pop AttrEmitter->EmitTextAttribute(ARMBuildAttrs::Advanced_SIMD_arch, "neon"); 794728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* If emitted for NEON, omit from VFP below, since you can have both 795728ff0db783152ed4f21f7746bd7874b49708172Renato Golin * NEON and VFP in build attributes but only one .fpu */ 796728ff0db783152ed4f21f7746bd7874b49708172Renato Golin emitFPU = false; 797728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } 798728ff0db783152ed4f21f7746bd7874b49708172Renato Golin 7994b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov /* VFPv4 + .fpu */ 8004b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov if (Subtarget->hasVFP4()) { 8014b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch, 8024b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov ARMBuildAttrs::AllowFPv4A); 8034b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov if (emitFPU) 8044b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "vfpv4"); 8054b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov 806728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* VFPv3 + .fpu */ 8074b4e62219be91839091f9e35d8accf877f925d81Anton Korobeynikov } else if (Subtarget->hasVFP3()) { 808728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch, 809728ff0db783152ed4f21f7746bd7874b49708172Renato Golin ARMBuildAttrs::AllowFPv3A); 810728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (emitFPU) 811728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "vfpv3"); 812728ff0db783152ed4f21f7746bd7874b49708172Renato Golin 813728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* VFPv2 + .fpu */ 814728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } else if (Subtarget->hasVFP2()) { 815f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::VFP_arch, 816f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::AllowFPv2); 817728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (emitFPU) 818728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitTextAttribute(ARMBuildAttrs::VFP_arch, "vfpv2"); 819728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } 820728ff0db783152ed4f21f7746bd7874b49708172Renato Golin 821728ff0db783152ed4f21f7746bd7874b49708172Renato Golin /* TODO: ARMBuildAttrs::Allowed is not completely accurate, 822375db7f39af8da118f3947d24ea91967c4a6b526Cameron Zwarich * since NEON can have 1 (allowed) or 2 (MAC operations) */ 823728ff0db783152ed4f21f7746bd7874b49708172Renato Golin if (Subtarget->hasNEON()) { 824728ff0db783152ed4f21f7746bd7874b49708172Renato Golin AttrEmitter->EmitAttribute(ARMBuildAttrs::Advanced_SIMD_arch, 825728ff0db783152ed4f21f7746bd7874b49708172Renato Golin ARMBuildAttrs::Allowed); 826728ff0db783152ed4f21f7746bd7874b49708172Renato Golin } 827def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 828def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim // Signal various FP modes. 8298a8d479214745c82ef00f08d4e4f1c173b5f9ce2Nick Lewycky if (!TM.Options.UnsafeFPMath) { 830f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_FP_denormal, 831f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 832f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_FP_exceptions, 833f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 834def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim } 835def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 8368a8d479214745c82ef00f08d4e4f1c173b5f9ce2Nick Lewycky if (TM.Options.NoInfsFPMath && TM.Options.NoNaNsFPMath) 837f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_FP_number_model, 838f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::Allowed); 839def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim else 840f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_FP_number_model, 841f009a961caa75465999ef3bc764984d97a7da331Jason W Kim ARMBuildAttrs::AllowIEE754); 842def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 843f009a961caa75465999ef3bc764984d97a7da331Jason W Kim // FIXME: add more flags to ARMBuildAttrs.h 844def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim // 8-bytes alignment stuff. 845cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_align8_needed, 1); 846cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_align8_preserved, 1); 847def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 848def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim // Hard float. Use both S and D registers and conform to AAPCS-VFP. 8498a8d479214745c82ef00f08d4e4f1c173b5f9ce2Nick Lewycky if (Subtarget->isAAPCS_ABI() && TM.Options.FloatABIType == FloatABI::Hard) { 850cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_HardFP_use, 3); 851cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->EmitAttribute(ARMBuildAttrs::ABI_VFP_args, 1); 852def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim } 853def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim // FIXME: Should we signal R9 usage? 854cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 855f009a961caa75465999ef3bc764984d97a7da331Jason W Kim if (Subtarget->hasDivide()) 856f009a961caa75465999ef3bc764984d97a7da331Jason W Kim AttrEmitter->EmitAttribute(ARMBuildAttrs::DIV_use, 1); 857cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola 858cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola AttrEmitter->Finish(); 859cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola delete AttrEmitter; 860def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim} 861def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 86217b443df4368acfad853d09858c033c45c468d5cJason W Kimvoid ARMAsmPrinter::emitARMAttributeSection() { 86317b443df4368acfad853d09858c033c45c468d5cJason W Kim // <format-version> 86417b443df4368acfad853d09858c033c45c468d5cJason W Kim // [ <section-length> "vendor-name" 86517b443df4368acfad853d09858c033c45c468d5cJason W Kim // [ <file-tag> <size> <attribute>* 86617b443df4368acfad853d09858c033c45c468d5cJason W Kim // | <section-tag> <size> <section-number>* 0 <attribute>* 86717b443df4368acfad853d09858c033c45c468d5cJason W Kim // | <symbol-tag> <size> <symbol-number>* 0 <attribute>* 86817b443df4368acfad853d09858c033c45c468d5cJason W Kim // ]+ 86917b443df4368acfad853d09858c033c45c468d5cJason W Kim // ]* 87017b443df4368acfad853d09858c033c45c468d5cJason W Kim 87117b443df4368acfad853d09858c033c45c468d5cJason W Kim if (OutStreamer.hasRawTextSupport()) 87217b443df4368acfad853d09858c033c45c468d5cJason W Kim return; 87317b443df4368acfad853d09858c033c45c468d5cJason W Kim 87417b443df4368acfad853d09858c033c45c468d5cJason W Kim const ARMElfTargetObjectFile &TLOFELF = 87517b443df4368acfad853d09858c033c45c468d5cJason W Kim static_cast<const ARMElfTargetObjectFile &> 87617b443df4368acfad853d09858c033c45c468d5cJason W Kim (getObjFileLowering()); 87717b443df4368acfad853d09858c033c45c468d5cJason W Kim 87817b443df4368acfad853d09858c033c45c468d5cJason W Kim OutStreamer.SwitchSection(TLOFELF.getAttributesSection()); 879def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim 880cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola // Format version 881cecbc3d28277ff4916326311cbf87335ed05d106Rafael Espindola OutStreamer.EmitIntValue(0x41, 1); 88217b443df4368acfad853d09858c033c45c468d5cJason W Kim} 88317b443df4368acfad853d09858c033c45c468d5cJason W Kim 884def9ac48b779a4cb0b1d1486286cda157a2fe86eJason W Kim//===----------------------------------------------------------------------===// 88597f06937449c593a248dbbb1365e6ae408fb9decChris Lattner 886988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbachstatic MCSymbol *getPICLabel(const char *Prefix, unsigned FunctionNumber, 887988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach unsigned LabelId, MCContext &Ctx) { 888988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach 889988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach MCSymbol *Label = Ctx.GetOrCreateSymbol(Twine(Prefix) 890988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach + "PC" + Twine(FunctionNumber) + "_" + Twine(LabelId)); 891988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach return Label; 892988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach} 893988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach 8942c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbachstatic MCSymbolRefExpr::VariantKind 8952c4d5125c708bb35140fc2a40b02beb1add101dbJim GrosbachgetModifierVariantKind(ARMCP::ARMCPModifier Modifier) { 8962c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach switch (Modifier) { 8972c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::no_modifier: return MCSymbolRefExpr::VK_None; 8982c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::TLSGD: return MCSymbolRefExpr::VK_ARM_TLSGD; 8992c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::TPOFF: return MCSymbolRefExpr::VK_ARM_TPOFF; 9002c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::GOTTPOFF: return MCSymbolRefExpr::VK_ARM_GOTTPOFF; 9012c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::GOT: return MCSymbolRefExpr::VK_ARM_GOT; 9022c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach case ARMCP::GOTOFF: return MCSymbolRefExpr::VK_ARM_GOTOFF; 9032c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach } 9044d6ccb5f68cd7c6418a209f1fa4dbade569e4493David Blaikie llvm_unreachable("Invalid ARMCPModifier!"); 9052c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach} 9062c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach 9075de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan ChengMCSymbol *ARMAsmPrinter::GetARMGVSymbol(const GlobalValue *GV) { 9085de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng bool isIndirect = Subtarget->isTargetDarwin() && 9095de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng Subtarget->GVIsIndirectSymbol(GV, TM.getRelocationModel()); 9105de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng if (!isIndirect) 9115de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng return Mang->getSymbol(GV); 9125de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng 9135de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // FIXME: Remove this when Darwin transition to @GOT like syntax. 9145de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCSymbol *MCSym = GetSymbolWithGlobalValueBase(GV, "$non_lazy_ptr"); 9155de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MachineModuleInfoMachO &MMIMachO = 9165de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MMI->getObjFileInfo<MachineModuleInfoMachO>(); 9175de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MachineModuleInfoImpl::StubValueTy &StubSym = 9185de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng GV->hasHiddenVisibility() ? MMIMachO.getHiddenGVStubEntry(MCSym) : 9195de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MMIMachO.getGVStubEntry(MCSym); 9205de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng if (StubSym.getPointer() == 0) 9215de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng StubSym = MachineModuleInfoImpl:: 9225de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng StubValueTy(Mang->getSymbol(GV), !GV->hasInternalLinkage()); 9235de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng return MCSym; 9245de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng} 9255de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng 9265df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbachvoid ARMAsmPrinter:: 9275df08d8f55f47aafc671c358d971dbcc10dfdeefJim GrosbachEmitMachineConstantPoolValue(MachineConstantPoolValue *MCPV) { 9283574eca1b02600bac4e625297f4ecf745f4c4f32Micah Villmow int Size = TM.getDataLayout()->getTypeAllocSize(MCPV->getType()); 9295df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach 9305df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach ARMConstantPoolValue *ACPV = static_cast<ARMConstantPoolValue*>(MCPV); 9315df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach 9327c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach MCSymbol *MCSym; 9335df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach if (ACPV->isLSDA()) { 9347c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach SmallString<128> Str; 9357c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach raw_svector_ostream OS(Str); 9365df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach OS << MAI->getPrivateGlobalPrefix() << "_LSDA_" << getFunctionNumber(); 9377c7ddb21c3cc65ea08de8f90bb97cbdead3173f8Jim Grosbach MCSym = OutContext.GetOrCreateSymbol(OS.str()); 9385df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } else if (ACPV->isBlockAddress()) { 9395bb779976a7d8e48408051ec2289fe69206dc072Bill Wendling const BlockAddress *BA = 9405bb779976a7d8e48408051ec2289fe69206dc072Bill Wendling cast<ARMConstantPoolConstant>(ACPV)->getBlockAddress(); 9415bb779976a7d8e48408051ec2289fe69206dc072Bill Wendling MCSym = GetBlockAddressSymbol(BA); 9425df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } else if (ACPV->isGlobalValue()) { 9435bb779976a7d8e48408051ec2289fe69206dc072Bill Wendling const GlobalValue *GV = cast<ARMConstantPoolConstant>(ACPV)->getGV(); 9445de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCSym = GetARMGVSymbol(GV); 945e00897c5a91febe90ba21082fc636be892bf9bf1Bill Wendling } else if (ACPV->isMachineBasicBlock()) { 9463320f2a3bfd4daec23ba7ceb50525140cc6316daBill Wendling const MachineBasicBlock *MBB = cast<ARMConstantPoolMBB>(ACPV)->getMBB(); 947e00897c5a91febe90ba21082fc636be892bf9bf1Bill Wendling MCSym = MBB->getSymbol(); 9485df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } else { 9495df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach assert(ACPV->isExtSymbol() && "unrecognized constant pool value"); 950fe31e673506ef9a1080eaa684b43b34178c6f447Bill Wendling const char *Sym = cast<ARMConstantPoolSymbol>(ACPV)->getSymbol(); 951fe31e673506ef9a1080eaa684b43b34178c6f447Bill Wendling MCSym = GetExternalSymbolSymbol(Sym); 9525df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } 9535df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach 9545df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach // Create an MCSymbol for the reference. 9552c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach const MCExpr *Expr = 9562c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCSymbolRefExpr::Create(MCSym, getModifierVariantKind(ACPV->getModifier()), 9572c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutContext); 9582c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach 9592c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach if (ACPV->getPCAdjustment()) { 9602c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCSymbol *PCLabel = getPICLabel(MAI->getPrivateGlobalPrefix(), 9612c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach getFunctionNumber(), 9622c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach ACPV->getLabelId(), 9632c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutContext); 9642c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach const MCExpr *PCRelExpr = MCSymbolRefExpr::Create(PCLabel, OutContext); 9652c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach PCRelExpr = 9662c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCBinaryExpr::CreateAdd(PCRelExpr, 9672c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCConstantExpr::Create(ACPV->getPCAdjustment(), 9682c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutContext), 9692c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutContext); 9702c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach if (ACPV->mustAddCurrentAddress()) { 9712c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach // We want "(<expr> - .)", but MC doesn't have a concept of the '.' 9722c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach // label, so just emit a local label end reference that instead. 9732c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach MCSymbol *DotSym = OutContext.CreateTempSymbol(); 9742c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutStreamer.EmitLabel(DotSym); 9752c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach const MCExpr *DotExpr = MCSymbolRefExpr::Create(DotSym, OutContext); 9762c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach PCRelExpr = MCBinaryExpr::CreateSub(PCRelExpr, DotExpr, OutContext); 9775df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } 9782c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach Expr = MCBinaryExpr::CreateSub(Expr, PCRelExpr, OutContext); 9795df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach } 9802c4d5125c708bb35140fc2a40b02beb1add101dbJim Grosbach OutStreamer.EmitValue(Expr, Size); 9815df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach} 9825df08d8f55f47aafc671c358d971dbcc10dfdeefJim Grosbach 983a2244cb38781e596110023399c7902b5ee5087feJim Grosbachvoid ARMAsmPrinter::EmitJumpTable(const MachineInstr *MI) { 984a2244cb38781e596110023399c7902b5ee5087feJim Grosbach unsigned Opcode = MI->getOpcode(); 985a2244cb38781e596110023399c7902b5ee5087feJim Grosbach int OpNum = 1; 986a2244cb38781e596110023399c7902b5ee5087feJim Grosbach if (Opcode == ARM::BR_JTadd) 987a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OpNum = 2; 988a2244cb38781e596110023399c7902b5ee5087feJim Grosbach else if (Opcode == ARM::BR_JTm) 989a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OpNum = 3; 990a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 991a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const MachineOperand &MO1 = MI->getOperand(OpNum); 992a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id 993a2244cb38781e596110023399c7902b5ee5087feJim Grosbach unsigned JTI = MO1.getIndex(); 994a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 995a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // Emit a label for the jump table. 996a2244cb38781e596110023399c7902b5ee5087feJim Grosbach MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, MO2.getImm()); 997a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OutStreamer.EmitLabel(JTISymbol); 998a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 9993e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach // Mark the jump table as data-in-code. 10003e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach OutStreamer.EmitDataRegion(MCDR_DataRegionJT32); 10013e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach 1002a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // Emit each entry of the table. 1003a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo(); 1004a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables(); 1005a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs; 1006a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 1007a2244cb38781e596110023399c7902b5ee5087feJim Grosbach for (unsigned i = 0, e = JTBBs.size(); i != e; ++i) { 1008a2244cb38781e596110023399c7902b5ee5087feJim Grosbach MachineBasicBlock *MBB = JTBBs[i]; 1009a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // Construct an MCExpr for the entry. We want a value of the form: 1010a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // (BasicBlockAddr - TableBeginAddr) 1011a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // 1012a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // For example, a table with entries jumping to basic blocks BB0 and BB1 1013a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // would look like: 1014a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // LJTI_0_0: 1015a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // .word (LBB0 - LJTI_0_0) 1016a2244cb38781e596110023399c7902b5ee5087feJim Grosbach // .word (LBB1 - LJTI_0_0) 1017a2244cb38781e596110023399c7902b5ee5087feJim Grosbach const MCExpr *Expr = MCSymbolRefExpr::Create(MBB->getSymbol(), OutContext); 1018a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 1019a2244cb38781e596110023399c7902b5ee5087feJim Grosbach if (TM.getRelocationModel() == Reloc::PIC_) 1020a2244cb38781e596110023399c7902b5ee5087feJim Grosbach Expr = MCBinaryExpr::CreateSub(Expr, MCSymbolRefExpr::Create(JTISymbol, 1021a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OutContext), 1022a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OutContext); 1023de98273189700c1c66f06bcfbcc481cf481a8deeJim Grosbach // If we're generating a table of Thumb addresses in static relocation 1024de98273189700c1c66f06bcfbcc481cf481a8deeJim Grosbach // model, we need to add one to keep interworking correctly. 1025de98273189700c1c66f06bcfbcc481cf481a8deeJim Grosbach else if (AFI->isThumbFunction()) 1026de98273189700c1c66f06bcfbcc481cf481a8deeJim Grosbach Expr = MCBinaryExpr::CreateAdd(Expr, MCConstantExpr::Create(1,OutContext), 1027de98273189700c1c66f06bcfbcc481cf481a8deeJim Grosbach OutContext); 1028a2244cb38781e596110023399c7902b5ee5087feJim Grosbach OutStreamer.EmitValue(Expr, 4); 1029a2244cb38781e596110023399c7902b5ee5087feJim Grosbach } 10303e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach // Mark the end of jump table data-in-code region. 10313e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach OutStreamer.EmitDataRegion(MCDR_DataRegionEnd); 1032a2244cb38781e596110023399c7902b5ee5087feJim Grosbach} 1033a2244cb38781e596110023399c7902b5ee5087feJim Grosbach 1034882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbachvoid ARMAsmPrinter::EmitJump2Table(const MachineInstr *MI) { 1035882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach unsigned Opcode = MI->getOpcode(); 1036882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach int OpNum = (Opcode == ARM::t2BR_JT) ? 2 : 1; 1037882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const MachineOperand &MO1 = MI->getOperand(OpNum); 1038882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const MachineOperand &MO2 = MI->getOperand(OpNum+1); // Unique Id 1039882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach unsigned JTI = MO1.getIndex(); 1040882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach 1041882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach MCSymbol *JTISymbol = GetARMJTIPICJumpTableLabel2(JTI, MO2.getImm()); 1042882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach OutStreamer.EmitLabel(JTISymbol); 1043882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach 1044882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // Emit each entry of the table. 1045882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const MachineJumpTableInfo *MJTI = MF->getJumpTableInfo(); 1046882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const std::vector<MachineJumpTableEntry> &JT = MJTI->getJumpTables(); 1047882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs; 1048205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach unsigned OffsetWidth = 4; 10493e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach if (MI->getOpcode() == ARM::t2TBB_JT) { 1050205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OffsetWidth = 1; 10513e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach // Mark the jump table as data-in-code. 10523e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach OutStreamer.EmitDataRegion(MCDR_DataRegionJT8); 10533e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach } else if (MI->getOpcode() == ARM::t2TBH_JT) { 1054205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OffsetWidth = 2; 10553e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach // Mark the jump table as data-in-code. 10563e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach OutStreamer.EmitDataRegion(MCDR_DataRegionJT16); 10573e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach } 1058882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach 1059882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach for (unsigned i = 0, e = JTBBs.size(); i != e; ++i) { 1060882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach MachineBasicBlock *MBB = JTBBs[i]; 1061205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach const MCExpr *MBBSymbolExpr = MCSymbolRefExpr::Create(MBB->getSymbol(), 1062205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OutContext); 1063882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // If this isn't a TBB or TBH, the entries are direct branch instructions. 1064205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach if (OffsetWidth == 4) { 1065ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::t2B) 1066391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addExpr(MBBSymbolExpr) 1067391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1068ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1069882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach continue; 1070882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach } 1071882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // Otherwise it's an offset from the dispatch instruction. Construct an 1072205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // MCExpr for the entry. We want a value of the form: 1073205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // (BasicBlockAddr - TableBeginAddr) / 2 1074205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // 1075205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // For example, a TBB table with entries jumping to basic blocks BB0 and BB1 1076205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // would look like: 1077205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // LJTI_0_0: 1078205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // .byte (LBB0 - LJTI_0_0) / 2 1079205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach // .byte (LBB1 - LJTI_0_0) / 2 1080205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach const MCExpr *Expr = 1081205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach MCBinaryExpr::CreateSub(MBBSymbolExpr, 1082205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach MCSymbolRefExpr::Create(JTISymbol, OutContext), 1083205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OutContext); 1084205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach Expr = MCBinaryExpr::CreateDiv(Expr, MCConstantExpr::Create(2, OutContext), 1085205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OutContext); 1086205a5fa8e4233cdcdc71152c0f8c4334ea9ce2ebJim Grosbach OutStreamer.EmitValue(Expr, OffsetWidth); 1087882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach } 1088b3a119a257978857c1d62ad74ed4123198ea6703Jim Grosbach // Mark the end of jump table data-in-code region. 32-bit offsets use 1089b3a119a257978857c1d62ad74ed4123198ea6703Jim Grosbach // actual branch instructions here, so we don't mark those as a data-region 1090b3a119a257978857c1d62ad74ed4123198ea6703Jim Grosbach // at all. 1091b3a119a257978857c1d62ad74ed4123198ea6703Jim Grosbach if (OffsetWidth != 4) 1092b3a119a257978857c1d62ad74ed4123198ea6703Jim Grosbach OutStreamer.EmitDataRegion(MCDR_DataRegionEnd); 1093882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach} 1094882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach 10952d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbachvoid ARMAsmPrinter::PrintDebugValueComment(const MachineInstr *MI, 10962d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach raw_ostream &OS) { 10972d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach unsigned NOps = MI->getNumOperands(); 10982d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach assert(NOps==4); 10992d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << '\t' << MAI->getCommentString() << "DEBUG_VALUE: "; 11002d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach // cast away const; DIetc do not take const operands for some reason. 11012d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach DIVariable V(const_cast<MDNode *>(MI->getOperand(NOps-1).getMetadata())); 11022d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << V.getName(); 11032d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << " <- "; 11042d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach // Frame address. Currently handles register +- offset only. 11052d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach assert(MI->getOperand(0).isReg() && MI->getOperand(1).isImm()); 11062d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << '['; printOperand(MI, 0, OS); OS << '+'; printOperand(MI, 1, OS); 11072d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << ']'; 11082d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OS << "+"; 11092d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach printOperand(MI, NOps-2, OS); 11102d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach} 11112d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach 111257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid ARMAsmPrinter::EmitUnwindingInstruction(const MachineInstr *MI) { 111357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(MI->getFlag(MachineInstr::FrameSetup) && 111457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov "Only instruction which are involved into frame setup code are allowed"); 111557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 111657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov const MachineFunction &MF = *MI->getParent()->getParent(); 111757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov const TargetRegisterInfo *RegInfo = MF.getTarget().getRegisterInfo(); 1118b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov const ARMFunctionInfo &AFI = *MF.getInfo<ARMFunctionInfo>(); 111957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 112057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov unsigned FramePtr = RegInfo->getFrameRegister(MF); 112157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov unsigned Opc = MI->getOpcode(); 11227a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov unsigned SrcReg, DstReg; 11237a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov 11243daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov if (Opc == ARM::tPUSH || Opc == ARM::tLDRpci) { 11253daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // Two special cases: 11263daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // 1) tPUSH does not have src/dst regs. 11273daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // 2) for Thumb1 code we sometimes materialize the constant via constpool 11283daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // load. Yes, this is pretty fragile, but for now I don't see better 11293daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov // way... :( 11307a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov SrcReg = DstReg = ARM::SP; 11317a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov } else { 11323daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov SrcReg = MI->getOperand(1).getReg(); 11337a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov DstReg = MI->getOperand(0).getReg(); 11347a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov } 113557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 113657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // Try to figure out the unwinding opcode out of src / dst regs. 11375a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng if (MI->mayStore()) { 113857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // Register saves. 113957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(DstReg == ARM::SP && 114057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov "Only stack pointer as a destination reg is supported"); 114157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 114257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov SmallVector<unsigned, 4> RegList; 11437a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov // Skip src & dst reg, and pred ops. 11447a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov unsigned StartOp = 2 + 2; 11457a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov // Use all the operands. 11467a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov unsigned NumOffset = 0; 11477a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov 114857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov switch (Opc) { 114957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov default: 115057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 1151bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unsupported opcode for unwinding information"); 11527a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tPUSH: 11537a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov // Special case here: no src & dst reg, but two extra imp ops. 11547a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov StartOp = 2; NumOffset = 2; 115557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::STMDB_UPD: 11567a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::t2STMDB_UPD: 115757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::VSTMDDB_UPD: 115857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(SrcReg == ARM::SP && 115957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov "Only stack pointer as a source reg is supported"); 11607a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov for (unsigned i = StartOp, NumOps = MI->getNumOperands() - NumOffset; 1161ad62e92279bc0b14c54db94dd794082c8b8edd9eAnton Korobeynikov i != NumOps; ++i) { 1162ad62e92279bc0b14c54db94dd794082c8b8edd9eAnton Korobeynikov const MachineOperand &MO = MI->getOperand(i); 1163ad62e92279bc0b14c54db94dd794082c8b8edd9eAnton Korobeynikov // Actually, there should never be any impdef stuff here. Skip it 1164ad62e92279bc0b14c54db94dd794082c8b8edd9eAnton Korobeynikov // temporary to workaround PR11902. 1165ad62e92279bc0b14c54db94dd794082c8b8edd9eAnton Korobeynikov if (MO.isImplicit()) 1166ad62e92279bc0b14c54db94dd794082c8b8edd9eAnton Korobeynikov continue; 1167ad62e92279bc0b14c54db94dd794082c8b8edd9eAnton Korobeynikov RegList.push_back(MO.getReg()); 1168ad62e92279bc0b14c54db94dd794082c8b8edd9eAnton Korobeynikov } 116957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 1170793e79601f0fd68ba082fa2016018f80b2379460Owen Anderson case ARM::STR_PRE_IMM: 1171793e79601f0fd68ba082fa2016018f80b2379460Owen Anderson case ARM::STR_PRE_REG: 117273dd8bbce3ff54c318233027fb5e29f8298e01d6Evgeniy Stepanov case ARM::t2STR_PRE: 117357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov assert(MI->getOperand(2).getReg() == ARM::SP && 117457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov "Only stack pointer as a source reg is supported"); 117557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov RegList.push_back(SrcReg); 117657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 117757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 117857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov OutStreamer.EmitRegSave(RegList, Opc == ARM::VSTMDDB_UPD); 117957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } else { 118057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // Changes of stack / frame pointer. 118157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov if (SrcReg == ARM::SP) { 118257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov int64_t Offset = 0; 118357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov switch (Opc) { 118457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov default: 118557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 1186bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unsupported opcode for unwinding information"); 118757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::MOVr: 118873dd8bbce3ff54c318233027fb5e29f8298e01d6Evgeniy Stepanov case ARM::tMOVr: 118957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov Offset = 0; 119057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 119157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::ADDri: 119257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov Offset = -MI->getOperand(2).getImm(); 119357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 119457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov case ARM::SUBri: 119573dd8bbce3ff54c318233027fb5e29f8298e01d6Evgeniy Stepanov case ARM::t2SUBri: 1196f6fd90910a552ad9883f031350ae517e26dfdb44Jim Grosbach Offset = MI->getOperand(2).getImm(); 119757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov break; 11987a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tSUBspi: 1199f6fd90910a552ad9883f031350ae517e26dfdb44Jim Grosbach Offset = MI->getOperand(2).getImm()*4; 12007a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov break; 12017a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tADDspi: 12027a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov case ARM::tADDrSPi: 12037a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov Offset = -MI->getOperand(2).getImm()*4; 12047a764168b9b3b3ebeaea224ed8c6ef93381c74d4Anton Korobeynikov break; 1205b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov case ARM::tLDRpci: { 1206b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov // Grab the constpool index and check, whether it corresponds to 1207b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov // original or cloned constpool entry. 1208b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov unsigned CPI = MI->getOperand(1).getIndex(); 1209b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov const MachineConstantPool *MCP = MF.getConstantPool(); 1210b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov if (CPI >= MCP->getConstants().size()) 1211b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov CPI = AFI.getOriginalCPIdx(CPI); 1212b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov assert(CPI != -1U && "Invalid constpool index"); 1213b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov 1214b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov // Derive the actual offset. 1215b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov const MachineConstantPoolEntry &CPE = MCP->getConstants()[CPI]; 1216b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov assert(!CPE.isMachineConstantPoolEntry() && "Invalid constpool entry"); 1217b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov // FIXME: Check for user, it should be "add" instruction! 1218b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov Offset = -cast<ConstantInt>(CPE.Val.ConstVal)->getSExtValue(); 12193daccd82d3151fa3629de430b55698a81084fc9eAnton Korobeynikov break; 122057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 1221b3fcc06d2124f9d01e3b48097b44cc141309908eAnton Korobeynikov } 122257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 122357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov if (DstReg == FramePtr && FramePtr != ARM::SP) 1224e516379d2a2fd1ad7583b2fa289051da517d8a42Anton Korobeynikov // Set-up of the frame pointer. Positive values correspond to "add" 1225e516379d2a2fd1ad7583b2fa289051da517d8a42Anton Korobeynikov // instruction. 1226e516379d2a2fd1ad7583b2fa289051da517d8a42Anton Korobeynikov OutStreamer.EmitSetFP(FramePtr, ARM::SP, -Offset); 122757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov else if (DstReg == ARM::SP) { 1228e516379d2a2fd1ad7583b2fa289051da517d8a42Anton Korobeynikov // Change of SP by an offset. Positive values correspond to "sub" 122957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // instruction. 123057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov OutStreamer.EmitPad(Offset); 123157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } else { 123257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 1233bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unsupported opcode for unwinding information"); 123457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 123557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } else if (DstReg == ARM::SP) { 123657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov // FIXME: .movsp goes here 123757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 1238bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unsupported opcode for unwinding information"); 123957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 124057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov else { 124157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov MI->dump(); 1242bc2198133a1836598b54b943420748e75d5dea94Craig Topper llvm_unreachable("Unsupported opcode for unwinding information"); 124357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 124457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov } 124557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 124657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 12473eb4be0ace6263f35a2f3aae9e964a752ebe55afChandler Carruthextern cl::opt<bool> EnableARMEHABI; 124857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 124953e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach// Simple pseudo-instructions have their lowering (with expansion to real 125053e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach// instructions) auto-generated. 125153e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach#include "ARMGenMCPseudoLowering.inc" 125253e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach 1253b454cdaebc6e4543099955ce043258c3903b1a0eJim Grosbachvoid ARMAsmPrinter::EmitInstruction(const MachineInstr *MI) { 12543e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach // If we just ended a constant pool, mark it as such. 12553e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach if (InConstantPool && MI->getOpcode() != ARM::CONSTPOOL_ENTRY) { 12563e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach OutStreamer.EmitDataRegion(MCDR_DataRegionEnd); 12573e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach InConstantPool = false; 12583e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach } 12592fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 12605aa29a0cffc499331a2a24a03eb55643dace1d8dJim Grosbach // Emit unwinding stuff for frame-related instructions 12613eb4be0ace6263f35a2f3aae9e964a752ebe55afChandler Carruth if (EnableARMEHABI && MI->getFlag(MachineInstr::FrameSetup)) 12625aa29a0cffc499331a2a24a03eb55643dace1d8dJim Grosbach EmitUnwindingInstruction(MI); 12635aa29a0cffc499331a2a24a03eb55643dace1d8dJim Grosbach 126453e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach // Do any auto-generated pseudo lowerings. 126553e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach if (emitPseudoExpansionLowering(OutStreamer, MI)) 126616f9924000a8d513353cd5c69d1d6307016fe280Jim Grosbach return; 12679702e6075c3e4cd508fd787e3bf6b3e64eb029abJim Grosbach 12683be654f8082dcbdff011a6716a7c90486e28fc9eAndrew Trick assert(!convertAddSubFlagsOpcode(MI->getOpcode()) && 12693be654f8082dcbdff011a6716a7c90486e28fc9eAndrew Trick "Pseudo flag setting opcode should be expanded early"); 12703be654f8082dcbdff011a6716a7c90486e28fc9eAndrew Trick 127153e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach // Check for manual lowerings. 127253e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach unsigned Opc = MI->getOpcode(); 127353e3fc463e3d9ee840510b08ebd6db17694fa2c5Jim Grosbach switch (Opc) { 1274bc2198133a1836598b54b943420748e75d5dea94Craig Topper case ARM::t2MOVi32imm: llvm_unreachable("Should be lowered by thumb2it pass"); 12752d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach case ARM::DBG_VALUE: { 12762d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach if (isVerbose() && OutStreamer.hasRawTextSupport()) { 12772d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach SmallString<128> TmpStr; 12782d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach raw_svector_ostream OS(TmpStr); 12792d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach PrintDebugValueComment(MI, OS); 12802d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach OutStreamer.EmitRawText(StringRef(OS.str())); 12812d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach } 12822d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach return; 12832d0f53bd6348be3b28ffa53c37e3079bb33dd170Jim Grosbach } 128440edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach case ARM::LEApcrel: 1285d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach case ARM::tLEApcrel: 128640edf73a62bf025eba4391e806fb1ddada662355Jim Grosbach case ARM::t2LEApcrel: { 1287dff84b03258514463ede477af38f1246b95b0cd0Jim Grosbach // FIXME: Need to also handle globals and externals 1288391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer MCSymbol *CPISymbol = GetCPISymbol(MI->getOperand(1).getIndex()); 1289ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(MI->getOpcode() == 1290ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer ARM::t2LEApcrel ? ARM::t2ADR 1291391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer : (MI->getOpcode() == ARM::tLEApcrel ? ARM::tADR 1292391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer : ARM::ADR)) 1293391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1294391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addExpr(MCSymbolRefExpr::Create(CPISymbol, OutContext)) 1295391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1296391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(MI->getOperand(2).getImm()) 1297ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(MI->getOperand(3).getReg())); 1298dff84b03258514463ede477af38f1246b95b0cd0Jim Grosbach return; 1299dff84b03258514463ede477af38f1246b95b0cd0Jim Grosbach } 1300d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach case ARM::LEApcrelJT: 1301d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach case ARM::tLEApcrelJT: 1302d40963c4065432ec7e47879d3ca665a54ee903b6Jim Grosbach case ARM::t2LEApcrelJT: { 1303391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer MCSymbol *JTIPICSymbol = 1304391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer GetARMJTIPICJumpTableLabel2(MI->getOperand(1).getIndex(), 1305391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer MI->getOperand(2).getImm()); 1306ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(MI->getOpcode() == 1307ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer ARM::t2LEApcrelJT ? ARM::t2ADR 1308391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer : (MI->getOpcode() == ARM::tLEApcrelJT ? ARM::tADR 1309391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer : ARM::ADR)) 1310391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1311391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addExpr(MCSymbolRefExpr::Create(JTIPICSymbol, OutContext)) 1312391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1313391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(MI->getOperand(3).getImm()) 1314ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(MI->getOperand(4).getReg())); 13155d14f9be7ba64162c7b996f36d419b11d8cdbe9aJim Grosbach return; 13165d14f9be7ba64162c7b996f36d419b11d8cdbe9aJim Grosbach } 1317f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach // Darwin call instructions are just normal call instructions with different 1318f859a545de30bbc848d1b0896b7ef8fa84fd631bJim Grosbach // clobber semantics (they clobber R9). 1319a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach case ARM::BX_CALL: { 1320ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::MOVr) 1321391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::LR) 1322391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1323a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add predicate operands. 1324391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1325391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 1326a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add 's' bit operand (always reg0 for this) 1327ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1328391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1329ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::BX) 1330ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(MI->getOperand(0).getReg())); 1331a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach return; 1332a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach } 1333ad70f6d2b1eacdc2c85e7cfec24e4c470325ef4eCameron Zwarich case ARM::tBX_CALL: { 1334ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tMOVr) 1335391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::LR) 1336391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 133763b46faeb8acae9b7e5f865b7417dc00b9b9dad3Jim Grosbach // Add predicate operands. 1338391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1339ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1340391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1341ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tBX) 1342391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1343ad70f6d2b1eacdc2c85e7cfec24e4c470325ef4eCameron Zwarich // Add predicate operands. 1344391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1345ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1346ad70f6d2b1eacdc2c85e7cfec24e4c470325ef4eCameron Zwarich return; 1347ad70f6d2b1eacdc2c85e7cfec24e4c470325ef4eCameron Zwarich } 1348a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach case ARM::BMOVPCRX_CALL: { 1349ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::MOVr) 1350391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::LR) 1351391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1352a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add predicate operands. 1353391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1354391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 1355a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add 's' bit operand (always reg0 for this) 1356ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1357391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1358ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::MOVr) 1359391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1360133c0d36e1fdeda88d784017bafa8a1b22af8acaBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1361a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add predicate operands. 1362391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1363391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 1364a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add 's' bit operand (always reg0 for this) 1365ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1366a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach return; 1367a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach } 13684bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng case ARM::BMOVPCB_CALL: { 1369ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::MOVr) 1370391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::LR) 1371391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 13724bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng // Add predicate operands. 1373391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1374391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 13754bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng // Add 's' bit operand (always reg0 for this) 1376ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1377391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1378391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer const GlobalValue *GV = MI->getOperand(0).getGlobal(); 1379391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer MCSymbol *GVSym = Mang->getSymbol(GV); 1380391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer const MCExpr *GVSymExpr = MCSymbolRefExpr::Create(GVSym, OutContext); 1381ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::Bcc) 1382391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addExpr(GVSymExpr) 13834bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng // Add predicate operands. 1384391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1385ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 13864bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng return; 13874bfcd4acbc7d12aa55f8de9af84a38422f0f6d83Evan Cheng } 138853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng case ARM::MOVi16_ga_pcrel: 138953519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng case ARM::t2MOVi16_ga_pcrel: { 13905de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCInst TmpInst; 139153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.setOpcode(Opc == ARM::MOVi16_ga_pcrel? ARM::MOVi16 : ARM::t2MOVi16); 13925de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 13935de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng 139453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng unsigned TF = MI->getOperand(1).getTargetFlags(); 139553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng bool isPIC = TF == ARMII::MO_LO16_NONLAZY_PIC; 13965de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng const GlobalValue *GV = MI->getOperand(1).getGlobal(); 13975de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCSymbol *GVSym = GetARMGVSymbol(GV); 13985de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng const MCExpr *GVSymExpr = MCSymbolRefExpr::Create(GVSym, OutContext); 139953519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng if (isPIC) { 140053519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCSymbol *LabelSym = getPICLabel(MAI->getPrivateGlobalPrefix(), 140153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng getFunctionNumber(), 140253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MI->getOperand(2).getImm(), OutContext); 140353519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *LabelSymExpr= MCSymbolRefExpr::Create(LabelSym, OutContext); 140453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng unsigned PCAdj = (Opc == ARM::MOVi16_ga_pcrel) ? 8 : 4; 140553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *PCRelExpr = 140653519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng ARMMCExpr::CreateLower16(MCBinaryExpr::CreateSub(GVSymExpr, 140753519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCBinaryExpr::CreateAdd(LabelSymExpr, 140853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCConstantExpr::Create(PCAdj, OutContext), 14095de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng OutContext), OutContext), OutContext); 141053519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.addOperand(MCOperand::CreateExpr(PCRelExpr)); 141153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng } else { 141253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *RefExpr= ARMMCExpr::CreateLower16(GVSymExpr, OutContext); 141353519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.addOperand(MCOperand::CreateExpr(RefExpr)); 141453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng } 141553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng 14165de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // Add predicate operands. 14175de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 14185de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(0)); 14195de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // Add 's' bit operand (always reg0 for this) 14205de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(0)); 14215de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng OutStreamer.EmitInstruction(TmpInst); 14225de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng return; 14235de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng } 142453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng case ARM::MOVTi16_ga_pcrel: 142553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng case ARM::t2MOVTi16_ga_pcrel: { 14265de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCInst TmpInst; 142753519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.setOpcode(Opc == ARM::MOVTi16_ga_pcrel 142853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng ? ARM::MOVTi16 : ARM::t2MOVTi16); 14295de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 14305de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg())); 14315de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng 143253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng unsigned TF = MI->getOperand(2).getTargetFlags(); 143353519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng bool isPIC = TF == ARMII::MO_HI16_NONLAZY_PIC; 14345de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng const GlobalValue *GV = MI->getOperand(2).getGlobal(); 14355de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng MCSymbol *GVSym = GetARMGVSymbol(GV); 14365de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng const MCExpr *GVSymExpr = MCSymbolRefExpr::Create(GVSym, OutContext); 143753519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng if (isPIC) { 143853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCSymbol *LabelSym = getPICLabel(MAI->getPrivateGlobalPrefix(), 143953519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng getFunctionNumber(), 144053519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MI->getOperand(3).getImm(), OutContext); 144153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *LabelSymExpr= MCSymbolRefExpr::Create(LabelSym, OutContext); 144253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng unsigned PCAdj = (Opc == ARM::MOVTi16_ga_pcrel) ? 8 : 4; 144353519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *PCRelExpr = 144453519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng ARMMCExpr::CreateUpper16(MCBinaryExpr::CreateSub(GVSymExpr, 144553519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCBinaryExpr::CreateAdd(LabelSymExpr, 144653519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng MCConstantExpr::Create(PCAdj, OutContext), 14475de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng OutContext), OutContext), OutContext); 144853519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.addOperand(MCOperand::CreateExpr(PCRelExpr)); 144953519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng } else { 145053519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng const MCExpr *RefExpr= ARMMCExpr::CreateUpper16(GVSymExpr, OutContext); 145153519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng TmpInst.addOperand(MCOperand::CreateExpr(RefExpr)); 145253519f015e3e84e9f57b677cc8724805a6009b73Evan Cheng } 14535de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // Add predicate operands. 14545de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 14555de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(0)); 14565de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng // Add 's' bit operand (always reg0 for this) 14575de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng TmpInst.addOperand(MCOperand::CreateReg(0)); 14585de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng OutStreamer.EmitInstruction(TmpInst); 14595de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng return; 14605de5d4b6d0eb3fd379fa571d82f6fa764460b3b8Evan Cheng } 1461fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach case ARM::tPICADD: { 1462fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // This is a pseudo op for a label + instruction sequence, which looks like: 1463fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // LPC0: 1464fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // add r0, pc 1465fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // This adds the address of LPC0 to r0. 1466fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach 1467fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // Emit the label. 1468988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(), 1469988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach getFunctionNumber(), MI->getOperand(2).getImm(), 1470988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutContext)); 1471fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach 1472fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach // Form and emit the add. 1473ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tADDhirr) 1474391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1475391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1476391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1477391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1478391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1479ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1480fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach return; 1481fbd1873041783f388de1c36c5d46c82a9ad46ef3Jim Grosbach } 1482a3fbadfcd882f9f15bda7c1213b5ff52d6582a10Jim Grosbach case ARM::PICADD: { 14834d1522234192704f45dfd2527c2913fa60be616eChris Lattner // This is a pseudo op for a label + instruction sequence, which looks like: 14844d1522234192704f45dfd2527c2913fa60be616eChris Lattner // LPC0: 14854d1522234192704f45dfd2527c2913fa60be616eChris Lattner // add r0, pc, r0 14864d1522234192704f45dfd2527c2913fa60be616eChris Lattner // This adds the address of LPC0 to r0. 1487b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 14884d1522234192704f45dfd2527c2913fa60be616eChris Lattner // Emit the label. 1489988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(), 1490988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach getFunctionNumber(), MI->getOperand(2).getImm(), 1491988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutContext)); 1492b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 1493f3f09527e6484143fcdef2ddfef0b2f016881e36Jim Grosbach // Form and emit the add. 1494ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::ADDrr) 1495391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1496391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1497391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(1).getReg()) 1498391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1499391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(MI->getOperand(3).getImm()) 1500391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(4).getReg()) 1501391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add 's' bit operand (always reg0 for this) 1502ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 15034d1522234192704f45dfd2527c2913fa60be616eChris Lattner return; 1504b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach } 1505a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICSTR: 1506a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICSTRB: 1507a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICSTRH: 1508a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDR: 1509a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRB: 1510a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRH: 1511a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRSB: 1512a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRSH: { 1513b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // This is a pseudo op for a label + instruction sequence, which looks like: 1514b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // LPC0: 1515a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach // OP r0, [pc, r0] 1516b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // The LCP0 label is referenced by a constant pool entry in order to get 1517b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // a PC-relative address at the ldr instruction. 1518b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach 1519b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // Emit the label. 1520988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutStreamer.EmitLabel(getPICLabel(MAI->getPrivateGlobalPrefix(), 1521988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach getFunctionNumber(), MI->getOperand(2).getImm(), 1522988ce097b7774ebc935ea539f3d88c2dcc3405b2Jim Grosbach OutContext)); 1523b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach 1524b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach // Form and emit the load 1525a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach unsigned Opcode; 1526a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach switch (MI->getOpcode()) { 1527a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach default: 1528a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach llvm_unreachable("Unexpected opcode!"); 15297e3383c007f53b3a00675af225e428cb66ddf404Jim Grosbach case ARM::PICSTR: Opcode = ARM::STRrs; break; 15307e3383c007f53b3a00675af225e428cb66ddf404Jim Grosbach case ARM::PICSTRB: Opcode = ARM::STRBrs; break; 1531a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICSTRH: Opcode = ARM::STRH; break; 15323e5561247202bae994dd259a2d8dc4eff8f799f3Jim Grosbach case ARM::PICLDR: Opcode = ARM::LDRrs; break; 1533c1d30212e911d1e55ff6b25bffefb503708883c3Jim Grosbach case ARM::PICLDRB: Opcode = ARM::LDRBrs; break; 1534a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRH: Opcode = ARM::LDRH; break; 1535a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRSB: Opcode = ARM::LDRSB; break; 1536a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach case ARM::PICLDRSH: Opcode = ARM::LDRSH; break; 1537a28abbe24568d39414be7ccb7a1f659f40e487e2Jim Grosbach } 1538ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(Opcode) 1539391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1540391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1541391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(1).getReg()) 1542391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(0) 1543391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1544391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(MI->getOperand(3).getImm()) 1545ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(MI->getOperand(4).getReg())); 1546b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach 1547b74ca9d63104c94b800f2763a654d19f3eb30304Jim Grosbach return; 15484d1522234192704f45dfd2527c2913fa60be616eChris Lattner } 1549a3fbadfcd882f9f15bda7c1213b5ff52d6582a10Jim Grosbach case ARM::CONSTPOOL_ENTRY: { 1550a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner /// CONSTPOOL_ENTRY - This instruction represents a floating constant pool 1551a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner /// in the function. The first operand is the ID# for this instruction, the 1552a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner /// second is the index into the MachineConstantPool that this is, the third 1553a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner /// is the size in bytes of this constant pool entry. 15543e572ac2fbdf6aa538500be07b9b050ac008669eJakob Stoklund Olesen /// The required alignment is specified on the basic block holding this MI. 1555a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner unsigned LabelId = (unsigned)MI->getOperand(0).getImm(); 1556a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner unsigned CPIdx = (unsigned)MI->getOperand(1).getIndex(); 1557a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner 15583e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach // If this is the first entry of the pool, mark it. 15593e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach if (!InConstantPool) { 15603e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach OutStreamer.EmitDataRegion(MCDR_DataRegion); 15613e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach InConstantPool = true; 15623e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach } 15633e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach 15641b46f433e02155daba8ed3b1269c86ce63c9713bChris Lattner OutStreamer.EmitLabel(GetCPISymbol(LabelId)); 1565a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner 1566a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner const MachineConstantPoolEntry &MCPE = MCP->getConstants()[CPIdx]; 1567a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner if (MCPE.isMachineConstantPoolEntry()) 1568a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner EmitMachineConstantPoolValue(MCPE.Val.MachineCPVal); 1569a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner else 1570a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner EmitGlobalConstant(MCPE.Val.ConstVal); 1571a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner return; 1572a70e644820db9c58f201bd27ed3c28f81261a0d9Chris Lattner } 1573882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach case ARM::t2BR_JT: { 1574882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach // Lower and emit the instruction itself, then the jump table following it. 1575ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tMOVr) 1576391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1577391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1578391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1579391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1580ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1581391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 15825ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Output the data for the jump table itself 15835ca66696e734f963b613de51e3df3684395daf1cJim Grosbach EmitJump2Table(MI); 15845ca66696e734f963b613de51e3df3684395daf1cJim Grosbach return; 15855ca66696e734f963b613de51e3df3684395daf1cJim Grosbach } 15865ca66696e734f963b613de51e3df3684395daf1cJim Grosbach case ARM::t2TBB_JT: { 15875ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Lower and emit the instruction itself, then the jump table following it. 1588ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::t2TBB) 1589391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1590391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1591391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1592391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1593ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 15945ca66696e734f963b613de51e3df3684395daf1cJim Grosbach 15955ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Output the data for the jump table itself 15965ca66696e734f963b613de51e3df3684395daf1cJim Grosbach EmitJump2Table(MI); 15975ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Make sure the next instruction is 2-byte aligned. 15985ca66696e734f963b613de51e3df3684395daf1cJim Grosbach EmitAlignment(1); 15995ca66696e734f963b613de51e3df3684395daf1cJim Grosbach return; 16005ca66696e734f963b613de51e3df3684395daf1cJim Grosbach } 16015ca66696e734f963b613de51e3df3684395daf1cJim Grosbach case ARM::t2TBH_JT: { 16025ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Lower and emit the instruction itself, then the jump table following it. 1603ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::t2TBH) 1604391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1605391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1606391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1607391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1608ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 16095ca66696e734f963b613de51e3df3684395daf1cJim Grosbach 16105ca66696e734f963b613de51e3df3684395daf1cJim Grosbach // Output the data for the jump table itself 1611882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach EmitJump2Table(MI); 1612882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach return; 1613882ef2b76a09cdc39d38756fca71cf6cf25ae590Jim Grosbach } 1614f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach case ARM::tBR_JTr: 16152dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach case ARM::BR_JTr: { 16162dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Lower and emit the instruction itself, then the jump table following it. 16172dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // mov pc, target 16182dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach MCInst TmpInst; 16195ca66696e734f963b613de51e3df3684395daf1cJim Grosbach unsigned Opc = MI->getOpcode() == ARM::BR_JTr ? 16202a7b41ba4d3eb3c6003f6768dc20b28d83eac265Jim Grosbach ARM::MOVr : ARM::tMOVr; 1621f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach TmpInst.setOpcode(Opc); 16222dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 16232dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 16242dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Add predicate operands. 16252dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 16262dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 1627a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach // Add 's' bit operand (always reg0 for this) 1628a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach if (Opc == ARM::MOVr) 1629a0d2c8a40f890345237abfa9cece16c517e1e280Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 16302dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 16312dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach 1632f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach // Make sure the Thumb jump table is 4-byte aligned. 16332a7b41ba4d3eb3c6003f6768dc20b28d83eac265Jim Grosbach if (Opc == ARM::tMOVr) 1634f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach EmitAlignment(2); 1635f1aa47dc1aed018e2f70ffe7d32dba51e2ac45feJim Grosbach 16362dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Output the data for the jump table itself 16372dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach EmitJumpTable(MI); 16382dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach return; 16392dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach } 16402dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach case ARM::BR_JTm: { 16412dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Lower and emit the instruction itself, then the jump table following it. 16422dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // ldr pc, target 16432dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach MCInst TmpInst; 16442dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach if (MI->getOperand(1).getReg() == 0) { 16452dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // literal offset 16462dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.setOpcode(ARM::LDRi12); 16472dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 16482dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 16492dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(MI->getOperand(2).getImm())); 16502dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach } else { 16512dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.setOpcode(ARM::LDRrs); 16522dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(ARM::PC)); 16532dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(0).getReg())); 16542dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(MI->getOperand(1).getReg())); 16552dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(0)); 16562dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach } 16572dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Add predicate operands. 16582dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateImm(ARMCC::AL)); 16592dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach TmpInst.addOperand(MCOperand::CreateReg(0)); 16602dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach OutStreamer.EmitInstruction(TmpInst); 16612dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach 16622dc7768d73c9afa3a23b86ee7827bc8de426f459Jim Grosbach // Output the data for the jump table itself 1663a2244cb38781e596110023399c7902b5ee5087feJim Grosbach EmitJumpTable(MI); 1664a2244cb38781e596110023399c7902b5ee5087feJim Grosbach return; 1665a2244cb38781e596110023399c7902b5ee5087feJim Grosbach } 1666f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach case ARM::BR_JTadd: { 1667f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach // Lower and emit the instruction itself, then the jump table following it. 1668f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach // add pc, target, idx 1669ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::ADDrr) 1670391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1671391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(0).getReg()) 1672391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(MI->getOperand(1).getReg()) 1673391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add predicate operands. 1674391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1675391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 1676391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer // Add 's' bit operand (always reg0 for this) 1677ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1678f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach 1679f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach // Output the data for the jump table itself 1680f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach EmitJumpTable(MI); 1681f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach return; 1682f8dabac6041b2a38307a5ab0beb330ededb7514bJim Grosbach } 16832e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach case ARM::TRAP: { 16842e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach // Non-Darwin binutils don't yet support the "trap" mnemonic. 16852e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach // FIXME: Remove this special case when they do. 16862e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach if (!Subtarget->isTargetDarwin()) { 168778890f41f404fad3663408edd4adf2e13c1e13b5Jim Grosbach //.long 0xe7ffdefe @ trap 1688b2dda4bd346fe9a2795f83f659c0e60191b2e6a0Jim Grosbach uint32_t Val = 0xe7ffdefeUL; 16892e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach OutStreamer.AddComment("trap"); 16902e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach OutStreamer.EmitIntValue(Val, 4); 16912e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach return; 16922e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach } 16932e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach break; 16942e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach } 16950f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky case ARM::TRAPNaCl: { 16960f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky //.long 0xe7fedef0 @ trap 16970f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky uint32_t Val = 0xe7fedef0UL; 16980f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky OutStreamer.AddComment("trap"); 16990f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky OutStreamer.EmitIntValue(Val, 4); 17000f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky return; 17010f156af8312a0f3ce88e5c006bf2a52691039cebEli Bendersky } 17022e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach case ARM::tTRAP: { 17032e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach // Non-Darwin binutils don't yet support the "trap" mnemonic. 17042e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach // FIXME: Remove this special case when they do. 17052e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach if (!Subtarget->isTargetDarwin()) { 170678890f41f404fad3663408edd4adf2e13c1e13b5Jim Grosbach //.short 57086 @ trap 1707c8ab9eb066f6d35880e3a24436baf21236c921caBenjamin Kramer uint16_t Val = 0xdefe; 17082e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach OutStreamer.AddComment("trap"); 17092e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach OutStreamer.EmitIntValue(Val, 2); 17102e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach return; 17112e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach } 17122e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach break; 17132e6ae13bf6e09d844b76b0a12861d25be0842b03Jim Grosbach } 1714433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach case ARM::t2Int_eh_sjlj_setjmp: 1715433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach case ARM::t2Int_eh_sjlj_setjmp_nofp: 1716a3fbadfcd882f9f15bda7c1213b5ff52d6582a10Jim Grosbach case ARM::tInt_eh_sjlj_setjmp: { 1717433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Two incoming args: GPR:$src, GPR:$val 1718433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // mov $val, pc 1719433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // adds $val, #7 1720433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // str $val, [$src, #4] 1721433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // movs r0, #0 1722433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // b 1f 1723433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // movs r0, #1 1724433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // 1: 1725433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach unsigned SrcReg = MI->getOperand(0).getReg(); 1726433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach unsigned ValReg = MI->getOperand(1).getReg(); 1727433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach MCSymbol *Label = GetARMSJLJEHLabel(); 1728391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer OutStreamer.AddComment("eh_setjmp begin"); 1729ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tMOVr) 1730391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ValReg) 1731391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 173263b46faeb8acae9b7e5f865b7417dc00b9b9dad3Jim Grosbach // Predicate. 1733391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1734ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1735391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1736ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tADDi3) 1737391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ValReg) 1738433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // 's' bit operand 1739391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::CPSR) 1740391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ValReg) 1741391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(7) 1742433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Predicate. 1743391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1744ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1745391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1746ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tSTRi) 1747391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ValReg) 1748391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(SrcReg) 1749433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // The offset immediate is #4. The operand value is scaled by 4 for the 1750433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // tSTR instruction. 1751391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(1) 1752433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Predicate. 1753391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1754ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1755391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1756ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tMOVi8) 1757391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::R0) 1758391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::CPSR) 1759391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(0) 1760433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Predicate. 1761391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1762ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1763391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1764391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer const MCExpr *SymbolExpr = MCSymbolRefExpr::Create(Label, OutContext); 1765ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tB) 1766391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addExpr(SymbolExpr) 1767391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1768ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1769391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1770391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer OutStreamer.AddComment("eh_setjmp end"); 1771ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tMOVi8) 1772391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::R0) 1773391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::CPSR) 1774391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(1) 1775433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach // Predicate. 1776391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1777ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1778391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1779433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach OutStreamer.EmitLabel(Label); 1780433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach return; 1781433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach } 1782433a5785cc8201a8a384f0a5648d3dbac87f9fbcJim Grosbach 1783453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach case ARM::Int_eh_sjlj_setjmp_nofp: 1784a3fbadfcd882f9f15bda7c1213b5ff52d6582a10Jim Grosbach case ARM::Int_eh_sjlj_setjmp: { 1785453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Two incoming args: GPR:$src, GPR:$val 1786453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // add $val, pc, #8 1787453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // str $val, [$src, #+4] 1788453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // mov r0, #0 1789453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // add pc, pc, #0 1790453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // mov r0, #1 1791453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach unsigned SrcReg = MI->getOperand(0).getReg(); 1792453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach unsigned ValReg = MI->getOperand(1).getReg(); 1793453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach 1794391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer OutStreamer.AddComment("eh_setjmp begin"); 1795ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::ADDri) 1796391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ValReg) 1797391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1798391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(8) 1799453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1800391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1801391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 1802453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // 's' bit operand (always reg0 for this). 1803ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1804391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1805ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::STRi12) 1806391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ValReg) 1807391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(SrcReg) 1808391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(4) 1809453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1810391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1811ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1812391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1813ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::MOVi) 1814391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::R0) 1815391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(0) 1816453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1817391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1818391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 1819453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // 's' bit operand (always reg0 for this). 1820ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1821391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1822ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::ADDri) 1823391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1824391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::PC) 1825391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(0) 1826453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1827391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1828391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 1829453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // 's' bit operand (always reg0 for this). 1830ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1831391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1832391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer OutStreamer.AddComment("eh_setjmp end"); 1833ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::MOVi) 1834391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::R0) 1835391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(1) 1836453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // Predicate. 1837391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1838391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(0) 1839453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach // 's' bit operand (always reg0 for this). 1840ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1841453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach return; 1842453900814e5245fd823b2b24ee9da9b5e8b4bfc4Jim Grosbach } 18435acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach case ARM::Int_eh_sjlj_longjmp: { 18445acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // ldr sp, [$src, #8] 18455acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // ldr $scratch, [$src, #4] 18465acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // ldr r7, [$src] 18475acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // bx $scratch 18485acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach unsigned SrcReg = MI->getOperand(0).getReg(); 18495acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach unsigned ScratchReg = MI->getOperand(1).getReg(); 1850ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::LDRi12) 1851391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::SP) 1852391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(SrcReg) 1853391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(8) 18545acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // Predicate. 1855391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1856ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1857391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1858ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::LDRi12) 1859391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ScratchReg) 1860391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(SrcReg) 1861391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(4) 18625acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // Predicate. 1863391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1864ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1865391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1866ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::LDRi12) 1867391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::R7) 1868391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(SrcReg) 1869391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(0) 18705acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // Predicate. 1871391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1872ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1873391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1874ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::BX) 1875391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ScratchReg) 18765acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach // Predicate. 1877391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1878ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1879385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach return; 1880385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach } 1881385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach case ARM::tInt_eh_sjlj_longjmp: { 1882385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // ldr $scratch, [$src, #8] 1883385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // mov sp, $scratch 1884385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // ldr $scratch, [$src, #4] 1885385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // ldr r7, [$src] 1886385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // bx $scratch 1887385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach unsigned SrcReg = MI->getOperand(0).getReg(); 1888385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach unsigned ScratchReg = MI->getOperand(1).getReg(); 1889ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tLDRi) 1890391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ScratchReg) 1891391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(SrcReg) 1892385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // The offset immediate is #8. The operand value is scaled by 4 for the 1893f4caf69720d807573c50d41aa06bcec1c99bdbbdBill Wendling // tLDR instruction. 1894391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(2) 1895385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1896391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1897ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1898391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1899ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tMOVr) 1900391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::SP) 1901391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ScratchReg) 1902385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1903391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1904ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1905391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1906ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tLDRi) 1907391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ScratchReg) 1908391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(SrcReg) 1909391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(1) 1910385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1911391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1912ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1913391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1914ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tLDRi) 1915391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ARM::R7) 1916391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(SrcReg) 1917391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(0) 1918385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1919391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1920ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 1921391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer 1922ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer OutStreamer.EmitInstruction(MCInstBuilder(ARM::tBX) 1923391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addReg(ScratchReg) 1924385cc5eede9f81717b03121baf47b7aa185b5128Jim Grosbach // Predicate. 1925391271f3bbcec02e0da26d7c246bfabff5cb4ddfBenjamin Kramer .addImm(ARMCC::AL) 1926ed9e442cf098663ce213cb16778b44be466b441fBenjamin Kramer .addReg(0)); 19275acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach return; 19285acb3de8b7cfd5a104722526b731a3c87bb1a46eJim Grosbach } 192997f06937449c593a248dbbb1365e6ae408fb9decChris Lattner } 1930b0739b78332275906cd5ace2ae0d65a29135667bJim Grosbach 193197f06937449c593a248dbbb1365e6ae408fb9decChris Lattner MCInst TmpInst; 193230e2cc254be72601b11383dda01f495741ffd56cChris Lattner LowerARMMachineInstrToMCInst(MI, TmpInst, *this); 193357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 1934850d2e2a1b58ea30abed10ca955259d60d07d97aChris Lattner OutStreamer.EmitInstruction(TmpInst); 193597f06937449c593a248dbbb1365e6ae408fb9decChris Lattner} 19362685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar 19372685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar//===----------------------------------------------------------------------===// 19382685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar// Target Registry Stuff 19392685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar//===----------------------------------------------------------------------===// 19402685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar 19412685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar// Force static initialization. 19422685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbarextern "C" void LLVMInitializeARMAsmPrinter() { 19432685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar RegisterAsmPrinter<ARMAsmPrinter> X(TheARMTarget); 19442685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar RegisterAsmPrinter<ARMAsmPrinter> Y(TheThumbTarget); 19452685a29a8d4ced7791bb671e28f9fe51c74eb3bbDaniel Dunbar} 1946