MipsAsmPrinter.cpp revision c91cbb9b0c90a480299cc7deaef166d47a61d9df
1c5707112e7635d1dd2f2cc9c4f42e79a51302ccaJia Liu//===-- MipsAsmPrinter.cpp - Mips LLVM Assembly Printer -------------------===// 2972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes// 3972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes// The LLVM Compiler Infrastructure 4972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes// 84552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 9972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes// 10972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes// This file contains a printer that converts from our internal representation 11972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes// of machine-dependent LLVM code to GAS-format MIPS assembly language. 12972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes// 134552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 14972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 15972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes#define DEBUG_TYPE "mips-asm-printer" 16794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka#include "InstPrinter/MipsInstPrinter.h" 1747b92f3d8362518596d57269dc53d985bc13323aBruno Cardoso Lopes#include "MCTargetDesc/MipsBaseInfo.h" 18d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "Mips.h" 19c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Carter#include "MipsAsmPrinter.h" 20d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "MipsInstrInfo.h" 21d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "MipsMCInstLower.h" 22ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/ADT/SmallString.h" 23ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/ADT/StringExtras.h" 24ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/ADT/Twine.h" 25972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes#include "llvm/CodeGen/MachineConstantPool.h" 26a4e8200366805c665bb1424d8af5550f5d3d6863Bruno Cardoso Lopes#include "llvm/CodeGen/MachineFrameInfo.h" 27244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter#include "llvm/CodeGen/MachineFunctionPass.h" 28972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes#include "llvm/CodeGen/MachineInstr.h" 295c21c9e78ebbb5b766fac31bf30433926dcc2a5dAkira Hatanaka#include "llvm/CodeGen/MachineMemOperand.h" 300b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/BasicBlock.h" 310b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/DataLayout.h" 320b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/InlineAsm.h" 330b8c9a80f20772c3793201ab5b251d3520b9cea3Chandler Carruth#include "llvm/IR/Instructions.h" 34af76e592c7f9deff0e55c13dbb4a34f07f1c7f64Chris Lattner#include "llvm/MC/MCAsmInfo.h" 35794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka#include "llvm/MC/MCInst.h" 36244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter#include "llvm/MC/MCStreamer.h" 37325d3dcfe4d5efc91db0f59b20a72a11dea024edChris Lattner#include "llvm/MC/MCSymbol.h" 38244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter#include "llvm/Support/TargetRegistry.h" 39d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/Support/raw_ostream.h" 40d62f1b4168d4327c119642d28c26c836ae6717abChris Lattner#include "llvm/Target/Mangler.h" 4181092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes#include "llvm/Target/TargetLoweringObjectFile.h" 42753a98740bfe3164fd0961a1959306c46135cf19Bruno Cardoso Lopes#include "llvm/Target/TargetOptions.h" 43c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka 44972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopesusing namespace llvm; 45972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 46f93b86306683f8e860c8824efb717995cb072a70Akira Hatanakabool MipsAsmPrinter::runOnMachineFunction(MachineFunction &MF) { 47f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka MipsFI = MF.getInfo<MipsFunctionInfo>(); 48f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka AsmPrinter::runOnMachineFunction(MF); 49f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka return true; 50ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes} 51ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes 52cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanakabool MipsAsmPrinter::lowerOperand(const MachineOperand &MO, MCOperand &MCOp) { 53cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka MCOp = MCInstLowering.LowerOperand(MO); 54cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka return MCOp.isValid(); 55cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka} 56cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka 57cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka#include "MipsGenMCPseudoLowering.inc" 58cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka 59aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanakavoid MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) { 60aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka if (MI->isDebugValue()) { 61ce8524c0160787fc727c16816979302df42b914aBruno Cardoso Lopes SmallString<128> Str; 62ce8524c0160787fc727c16816979302df42b914aBruno Cardoso Lopes raw_svector_ostream OS(Str); 63ce8524c0160787fc727c16816979302df42b914aBruno Cardoso Lopes 64aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka PrintDebugValueComment(MI, OS); 65aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka return; 66aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka } 67972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 68cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka // Do any auto-generated pseudo lowerings. 69cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka if (emitPseudoExpansionLowering(OutStreamer, MI)) 70cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka return; 71cc46fe591af10c193c17323547a3dd7cc00c925dAkira Hatanaka 72158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka MachineBasicBlock::const_instr_iterator I = MI; 73158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka MachineBasicBlock::const_instr_iterator E = MI->getParent()->instr_end(); 74158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka 75158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka do { 76158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka MCInst TmpInst0; 77a7570a3d8686a1fe2075b5bee01650490fa52b26Jack Carter MCInstLowering.Lower(I++, TmpInst0); 7869dba7e20476ec0e64791e47b498ae3a69619f7dJack Carter 79158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka OutStreamer.EmitInstruction(TmpInst0); 8069dba7e20476ec0e64791e47b498ae3a69619f7dJack Carter } while ((I != E) && I->isInsideBundle()); // Delay slot check 81aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka} 82972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 834552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 84dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 85dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Mips Asm Directives 86dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 87dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// -- Frame directive "frame Stackpointer, Stacksize, RARegister" 88dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Describe the stack frame. 89dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 9081092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// -- Mask directives "(f)mask bitmask, offset" 91dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Tells the assembler which registers are saved and where. 9281092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// bitmask - contain a little endian bitset indicating which registers are 9381092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// saved on function prologue (e.g. with a 0x80000000 mask, the 94dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// assembler knows the register 31 (RA) is saved at prologue. 9581092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// offset - the position before stack pointer subtraction indicating where 96dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// the first saved register on prologue is located. (e.g. with a 97dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 98dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Consider the following function prologue: 99dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 1006ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// .frame $fp,48,$ra 1016ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// .mask 0xc0000000,-8 1026ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// addiu $sp, $sp, -48 1036ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// sw $ra, 40($sp) 1046ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// sw $fp, 36($sp) 105dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 10681092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// With a 0xc0000000 mask, the assembler knows the register 31 (RA) and 10781092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// 30 (FP) are saved at prologue. As the save order on prologue is from 10881092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// left to right, RA is saved first. A -8 offset means that after the 109dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// stack pointer subtration, the first register in the mask (RA) will be 110dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// saved at address 48-8=40. 111dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 1124552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 113a4e8200366805c665bb1424d8af5550f5d3d6863Bruno Cardoso Lopes 1144552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 11543d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes// Mask directives 1164552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 11743d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 11881092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// Create a bitmask with all callee saved registers for CPU or Floating Point 119bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes// registers. For CPU registers consider RA, GP and FP for saving if necessary. 12035c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattnervoid MipsAsmPrinter::printSavedRegsBitmask(raw_ostream &O) { 121bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes // CPU and FPU Saved Registers Bitmasks 122f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka unsigned CPUBitmask = 0, FPUBitmask = 0; 123f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka int CPUTopSavedRegOff, FPUTopSavedRegOff; 124dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes 125bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes // Set the CPU and FPU Bitmasks 126a34103f6fa6f21025518596efc73631eb899410bChris Lattner const MachineFrameInfo *MFI = MF->getFrameInfo(); 127dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo(); 128f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // size of stack area to which FP callee-saved regs are saved. 129420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper unsigned CPURegSize = Mips::CPURegsRegClass.getSize(); 130420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper unsigned FGR32RegSize = Mips::FGR32RegClass.getSize(); 131420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper unsigned AFGR64RegSize = Mips::AFGR64RegClass.getSize(); 132f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka bool HasAFGR64Reg = false; 133f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka unsigned CSFPRegsSize = 0; 134f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka unsigned i, e = CSI.size(); 135f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka 136f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // Set FPU Bitmask. 137f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka for (i = 0; i != e; ++i) { 13842d075c4fb21995265961501cec9ff6e3fb497ceRafael Espindola unsigned Reg = CSI[i].getReg(); 139420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper if (Mips::CPURegsRegClass.contains(Reg)) 140f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka break; 141f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka 142e8068692f924a1577075bd2d7b72b44820e0ffb2Akira Hatanaka unsigned RegNum = TM.getRegisterInfo()->getEncodingValue(Reg); 143420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper if (Mips::AFGR64RegClass.contains(Reg)) { 144f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka FPUBitmask |= (3 << RegNum); 145f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka CSFPRegsSize += AFGR64RegSize; 146f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka HasAFGR64Reg = true; 147f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka continue; 148f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka } 149f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka 150f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka FPUBitmask |= (1 << RegNum); 151f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka CSFPRegsSize += FGR32RegSize; 152f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka } 153f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka 154f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // Set CPU Bitmask. 155f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka for (; i != e; ++i) { 156f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka unsigned Reg = CSI[i].getReg(); 157e8068692f924a1577075bd2d7b72b44820e0ffb2Akira Hatanaka unsigned RegNum = TM.getRegisterInfo()->getEncodingValue(Reg); 158f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka CPUBitmask |= (1 << RegNum); 159bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes } 160dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes 161f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // FP Regs are saved right below where the virtual frame pointer points to. 162f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka FPUTopSavedRegOff = FPUBitmask ? 163f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka (HasAFGR64Reg ? -AFGR64RegSize : -FGR32RegSize) : 0; 164d0c38176690e9602a93a20a43f1bd084564a8116Anton Korobeynikov 165f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // CPU Regs are saved below FP Regs. 166f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka CPUTopSavedRegOff = CPUBitmask ? -CSFPRegsSize - CPURegSize : 0; 167dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes 168bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes // Print CPUBitmask 16935c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner O << "\t.mask \t"; printHex32(CPUBitmask, O); 170f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka O << ',' << CPUTopSavedRegOff << '\n'; 171bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes 172bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes // Print FPUBitmask 173f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka O << "\t.fmask\t"; printHex32(FPUBitmask, O); 174f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka O << "," << FPUTopSavedRegOff << '\n'; 175dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes} 176dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes 177dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Print a 32 bit hex number with all numbers. 17835c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattnervoid MipsAsmPrinter::printHex32(unsigned Value, raw_ostream &O) { 179cb3718832375a581c5ea23f15918f3ea447a446cOwen Anderson O << "0x"; 18081092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes for (int i = 7; i >= 0; i--) 181590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer O.write_hex((Value & (0xF << (i*4))) >> (i*4)); 182a4e8200366805c665bb1424d8af5550f5d3d6863Bruno Cardoso Lopes} 183a4e8200366805c665bb1424d8af5550f5d3d6863Bruno Cardoso Lopes 1844552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 18543d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes// Frame and Set directives 1864552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 18743d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 18843d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes/// Frame Directive 1899d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattnervoid MipsAsmPrinter::emitFrameDirective() { 19043d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes const TargetRegisterInfo &RI = *TM.getRegisterInfo(); 19143d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 192a34103f6fa6f21025518596efc73631eb899410bChris Lattner unsigned stackReg = RI.getFrameRegister(*MF); 19343d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes unsigned returnReg = RI.getRARegister(); 194a34103f6fa6f21025518596efc73631eb899410bChris Lattner unsigned stackSize = MF->getFrameInfo()->getStackSize(); 19543d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 196bb481f882093fb738d2bb15610c79364bada5496Jia Liu if (OutStreamer.hasRawTextSupport()) 197ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText("\t.frame\t$" + 198590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer StringRef(MipsInstPrinter::getRegisterName(stackReg)).lower() + 199794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka "," + Twine(stackSize) + ",$" + 200590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer StringRef(MipsInstPrinter::getRegisterName(returnReg)).lower()); 20143d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes} 20243d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 20343d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes/// Emit Set directives. 20481092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopesconst char *MipsAsmPrinter::getCurrentABIString() const { 2059d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner switch (Subtarget->getTargetABI()) { 20681092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes case MipsSubtarget::O32: return "abi32"; 2079d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner case MipsSubtarget::N32: return "abiN32"; 2089d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner case MipsSubtarget::N64: return "abi64"; 2099d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner case MipsSubtarget::EABI: return "eabi32"; // TODO: handle eabi64 2102de0572caec55e3779857cae0bbcd962af2e495dDmitri Gribenko default: llvm_unreachable("Unknown Mips ABI"); 21143d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes } 21281092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes} 21343d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 2145006071f7a75b81ea9b4cb18d8352e612bb787ecChris Lattnervoid MipsAsmPrinter::EmitFunctionEntryLabel() { 215c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka if (OutStreamer.hasRawTextSupport()) { 216c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka if (Subtarget->inMips16Mode()) 217c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tmips16")); 218c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka else 219c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tnomips16")); 220942918d13e5d6e7401e6b6d5c7443974d591db61Akira Hatanaka // leave out until FSF available gas has micromips changes 221942918d13e5d6e7401e6b6d5c7443974d591db61Akira Hatanaka // OutStreamer.EmitRawText(StringRef("\t.set\tnomicromips")); 222ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText("\t.ent\t" + Twine(CurrentFnSym->getName())); 223c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka } 2245006071f7a75b81ea9b4cb18d8352e612bb787ecChris Lattner OutStreamer.EmitLabel(CurrentFnSym); 2255006071f7a75b81ea9b4cb18d8352e612bb787ecChris Lattner} 2265006071f7a75b81ea9b4cb18d8352e612bb787ecChris Lattner 227a34103f6fa6f21025518596efc73631eb899410bChris Lattner/// EmitFunctionBodyStart - Targets can override this to emit stuff before 228a34103f6fa6f21025518596efc73631eb899410bChris Lattner/// the first basic block in the function. 229a34103f6fa6f21025518596efc73631eb899410bChris Lattnervoid MipsAsmPrinter::EmitFunctionBodyStart() { 230f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka MCInstLowering.Initialize(Mang, &MF->getContext()); 231f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka 2329d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner emitFrameDirective(); 23381092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes 234ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) { 235ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes SmallString<128> Str; 236ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes raw_svector_ostream OS(Str); 237ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes printSavedRegsBitmask(OS); 238ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(OS.str()); 239f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka 240f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tnoreorder")); 241f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tnomacro")); 242173192fa71a45ee87479c0eb7753bf116bce36b8Akira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tnoat")); 2434147e4d054b62eb2ea8259db0385791ec23c460bAkira Hatanaka } 244a34103f6fa6f21025518596efc73631eb899410bChris Lattner} 245972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 246a34103f6fa6f21025518596efc73631eb899410bChris Lattner/// EmitFunctionBodyEnd - Targets can override this to emit stuff after 247a34103f6fa6f21025518596efc73631eb899410bChris Lattner/// the last basic block in the function. 248a34103f6fa6f21025518596efc73631eb899410bChris Lattnervoid MipsAsmPrinter::EmitFunctionBodyEnd() { 249745ec06ad2fa533e9ef47ce572c3a03547376224Chris Lattner // There are instruction for this macros, but they must 250745ec06ad2fa533e9ef47ce572c3a03547376224Chris Lattner // always be at the function end, and we can't emit and 25181092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes // break with BB logic. 252ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) { 253173192fa71a45ee87479c0eb7753bf116bce36b8Akira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tat")); 254ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.set\tmacro")); 255ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.set\treorder")); 256ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText("\t.end\t" + Twine(CurrentFnSym->getName())); 257ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes } 258972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes} 259972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 26046773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes/// isBlockOnlyReachableByFallthough - Return true if the basic block has 26146773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes/// exactly one predecessor and the control transfer mechanism between 26246773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes/// the predecessor and this block is a fall-through. 2634552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanakabool MipsAsmPrinter::isBlockOnlyReachableByFallthrough(const MachineBasicBlock* 2644552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka MBB) const { 26546773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes // The predecessor has to be immediately before this block. 26646773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes const MachineBasicBlock *Pred = *MBB->pred_begin(); 26746773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes 26846773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes // If the predecessor is a switch statement, assume a jump table 26946773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes // implementation, so it is not a fall through. 27046773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes if (const BasicBlock *bb = Pred->getBasicBlock()) 27146773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes if (isa<SwitchInst>(bb->getTerminator())) 27246773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes return false; 27381092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes 274a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // If this is a landing pad, it isn't a fall through. If it has no preds, 275a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // then nothing falls through to it. 276a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka if (MBB->isLandingPad() || MBB->pred_empty()) 277a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka return false; 278a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka 279a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // If there isn't exactly one predecessor, it can't be a fall through. 280a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka MachineBasicBlock::const_pred_iterator PI = MBB->pred_begin(), PI2 = PI; 281a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka ++PI2; 282bb481f882093fb738d2bb15610c79364bada5496Jia Liu 283a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka if (PI2 != MBB->pred_end()) 284bb481f882093fb738d2bb15610c79364bada5496Jia Liu return false; 285a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka 286a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // The predecessor has to be immediately before this block. 287a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka if (!Pred->isLayoutSuccessor(MBB)) 288a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka return false; 289bb481f882093fb738d2bb15610c79364bada5496Jia Liu 290a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // If the block is completely empty, then it definitely does fall through. 291a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka if (Pred->empty()) 292a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka return true; 293bb481f882093fb738d2bb15610c79364bada5496Jia Liu 294a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // Otherwise, check the last instruction. 295a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // Check if the last terminator is an unconditional branch. 296a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka MachineBasicBlock::const_iterator I = Pred->end(); 2975a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng while (I != Pred->begin() && !(--I)->isTerminator()) ; 298a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka 2995a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return !I->isBarrier(); 30046773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes} 30146773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes 30291ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes// Print out an operand for an inline asm expression. 30305b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopherbool MipsAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum, 304c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner unsigned AsmVariant,const char *ExtraCode, 305c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner raw_ostream &O) { 30691ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes // Does this asm operand have a single letter operand modifier? 30705b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher if (ExtraCode && ExtraCode[0]) { 30805b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher if (ExtraCode[1] != 0) return true; // Unknown modifier. 30905b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher 31005b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher const MachineOperand &MO = MI->getOperand(OpNum); 31105b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher switch (ExtraCode[0]) { 31275f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher default: 313d5e11ad51a3966c0b80ce2119946cd1aa3558aecJack Carter // See if this is a generic print operand 314d5e11ad51a3966c0b80ce2119946cd1aa3558aecJack Carter return AsmPrinter::PrintAsmOperand(MI,OpNum,AsmVariant,ExtraCode,O); 31575f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher case 'X': // hex const int 31675f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher if ((MO.getType()) != MachineOperand::MO_Immediate) 31775f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return true; 31875f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher O << "0x" << StringRef(utohexstr(MO.getImm())).lower(); 31975f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return false; 32075f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher case 'x': // hex const int (low 16 bits) 32175f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher if ((MO.getType()) != MachineOperand::MO_Immediate) 32275f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return true; 32375f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher O << "0x" << StringRef(utohexstr(MO.getImm() & 0xffff)).lower(); 32475f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return false; 32575f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher case 'd': // decimal const int 32675f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher if ((MO.getType()) != MachineOperand::MO_Immediate) 32775f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return true; 32875f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher O << MO.getImm(); 32975f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return false; 3306ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher case 'm': // decimal const int minus 1 3316ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher if ((MO.getType()) != MachineOperand::MO_Immediate) 3326ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher return true; 3336ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher O << MO.getImm() - 1; 3346ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher return false; 335f38ad8efd0f313a51307f700a2699ae57608ddd4Jack Carter case 'z': { 336f38ad8efd0f313a51307f700a2699ae57608ddd4Jack Carter // $0 if zero, regular printing otherwise 3377c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter if (MO.getType() != MachineOperand::MO_Immediate) 3387c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter return true; 3397c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter int64_t Val = MO.getImm(); 3407c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter if (Val) 3417c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter O << Val; 3427c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter else 3437c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter O << "$0"; 3447c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter return false; 3457c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter } 346bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter case 'D': // Second part of a double word register operand 347bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter case 'L': // Low order register of a double word register operand 348a0f14afee16ca976fef79c64df9a678e7f26cf43Jack Carter case 'M': // High order register of a double word register operand 349bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter { 350244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter if (OpNum == 0) 351244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter return true; 352244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter const MachineOperand &FlagsOP = MI->getOperand(OpNum - 1); 353244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter if (!FlagsOP.isImm()) 354244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter return true; 355244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter unsigned Flags = FlagsOP.getImm(); 356244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter unsigned NumVals = InlineAsm::getNumOperandRegisters(Flags); 357020f07f571fd1ae060becb2ecf8da2b220a9d47dJack Carter // Number of registers represented by this operand. We are looking 358020f07f571fd1ae060becb2ecf8da2b220a9d47dJack Carter // for 2 for 32 bit mode and 1 for 64 bit mode. 359244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter if (NumVals != 2) { 360020f07f571fd1ae060becb2ecf8da2b220a9d47dJack Carter if (Subtarget->isGP64bit() && NumVals == 1 && MO.isReg()) { 361244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter unsigned Reg = MO.getReg(); 362244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter O << '$' << MipsInstPrinter::getRegisterName(Reg); 363244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter return false; 364244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter } 365244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter return true; 366244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter } 3679a1199459d54b7b3cbe444480ae75d286e362d01Jack Carter 3689a1199459d54b7b3cbe444480ae75d286e362d01Jack Carter unsigned RegOp = OpNum; 3699a1199459d54b7b3cbe444480ae75d286e362d01Jack Carter if (!Subtarget->isGP64bit()){ 370bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter // Endianess reverses which register holds the high or low value 371a0f14afee16ca976fef79c64df9a678e7f26cf43Jack Carter // between M and L. 372bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter switch(ExtraCode[0]) { 373a0f14afee16ca976fef79c64df9a678e7f26cf43Jack Carter case 'M': 374a0f14afee16ca976fef79c64df9a678e7f26cf43Jack Carter RegOp = (Subtarget->isLittle()) ? OpNum + 1 : OpNum; 375bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter break; 376bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter case 'L': 377a0f14afee16ca976fef79c64df9a678e7f26cf43Jack Carter RegOp = (Subtarget->isLittle()) ? OpNum : OpNum + 1; 378a0f14afee16ca976fef79c64df9a678e7f26cf43Jack Carter break; 379a0f14afee16ca976fef79c64df9a678e7f26cf43Jack Carter case 'D': // Always the second part 380a0f14afee16ca976fef79c64df9a678e7f26cf43Jack Carter RegOp = OpNum + 1; 381bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter } 382bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter if (RegOp >= MI->getNumOperands()) 383bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter return true; 384bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter const MachineOperand &MO = MI->getOperand(RegOp); 385bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter if (!MO.isReg()) 386bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter return true; 387bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter unsigned Reg = MO.getReg(); 388bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter O << '$' << MipsInstPrinter::getRegisterName(Reg); 389bb78930489aceab797eecffe6771c6e52ff0c80cJack Carter return false; 390244a84ee57cc73509a0e85cc92585cb567d0b72cJack Carter } 39105b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher } 392020f07f571fd1ae060becb2ecf8da2b220a9d47dJack Carter } 393020f07f571fd1ae060becb2ecf8da2b220a9d47dJack Carter } 39491ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes 39505b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher printOperand(MI, OpNum, O); 39691ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes return false; 39791ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes} 39891ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes 39921afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanakabool MipsAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, 40021afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka unsigned OpNum, unsigned AsmVariant, 40121afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka const char *ExtraCode, 40221afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka raw_ostream &O) { 40321afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka if (ExtraCode && ExtraCode[0]) 4047c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter return true; // Unknown modifier. 405bb481f882093fb738d2bb15610c79364bada5496Jia Liu 40621afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka const MachineOperand &MO = MI->getOperand(OpNum); 40721afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka assert(MO.isReg() && "unexpected inline asm memory operand"); 408794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka O << "0($" << MipsInstPrinter::getRegisterName(MO.getReg()) << ")"; 4097c3cd4d24edf125bafc9aa258fc8e8ae1b00a4dfJack Carter 41021afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka return false; 41121afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka} 41221afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka 41335c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattnervoid MipsAsmPrinter::printOperand(const MachineInstr *MI, int opNum, 41435c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner raw_ostream &O) { 415972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes const MachineOperand &MO = MI->getOperand(opNum); 416c7db5618f9e5e708b87d9ae6595b3fd510a2a0c0Bruno Cardoso Lopes bool closeP = false; 417c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes 418c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes if (MO.getTargetFlags()) 4190c80be59c7ccbd844b5dee71b038090052cac07bBruno Cardoso Lopes closeP = true; 420c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes 421c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes switch(MO.getTargetFlags()) { 422c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes case MipsII::MO_GPREL: O << "%gp_rel("; break; 423c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes case MipsII::MO_GOT_CALL: O << "%call16("; break; 424e2e436a6bc44deb2f989a39514f482b4932b93bcAkira Hatanaka case MipsII::MO_GOT: O << "%got("; break; 425e2e436a6bc44deb2f989a39514f482b4932b93bcAkira Hatanaka case MipsII::MO_ABS_HI: O << "%hi("; break; 426e2e436a6bc44deb2f989a39514f482b4932b93bcAkira Hatanaka case MipsII::MO_ABS_LO: O << "%lo("; break; 427d979686bb47f2dcdca60f0a088f59d1964346453Bruno Cardoso Lopes case MipsII::MO_TLSGD: O << "%tlsgd("; break; 428d979686bb47f2dcdca60f0a088f59d1964346453Bruno Cardoso Lopes case MipsII::MO_GOTTPREL: O << "%gottprel("; break; 429d979686bb47f2dcdca60f0a088f59d1964346453Bruno Cardoso Lopes case MipsII::MO_TPREL_HI: O << "%tprel_hi("; break; 430d979686bb47f2dcdca60f0a088f59d1964346453Bruno Cardoso Lopes case MipsII::MO_TPREL_LO: O << "%tprel_lo("; break; 431e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GPOFF_HI: O << "%hi(%neg(%gp_rel("; break; 432e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GPOFF_LO: O << "%lo(%neg(%gp_rel("; break; 433e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GOT_DISP: O << "%got_disp("; break; 434e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GOT_PAGE: O << "%got_page("; break; 435e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GOT_OFST: O << "%got_ofst("; break; 436972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes } 437c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes 438762ccea600158bb317dcccdff3303e942426cb71Chris Lattner switch (MO.getType()) { 439972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_Register: 440794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka O << '$' 441590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer << StringRef(MipsInstPrinter::getRegisterName(MO.getReg())).lower(); 442972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 443972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 444972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_Immediate: 445ce98deb9f512070fe82518594550dd030b26dd96Akira Hatanaka O << MO.getImm(); 446972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 447972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 448972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_MachineBasicBlock: 4491b2eb0e8a6aaf034675b17be6d853cb1c666200fChris Lattner O << *MO.getMBB()->getSymbol(); 450972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes return; 451972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 452972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_GlobalAddress: 453d62f1b4168d4327c119642d28c26c836ae6717abChris Lattner O << *Mang->getSymbol(MO.getGlobal()); 454972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 455972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 456ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes case MachineOperand::MO_BlockAddress: { 457864f66085cd9543070ef01b9f7371c110ecd7898Akira Hatanaka MCSymbol *BA = GetBlockAddressSymbol(MO.getBlockAddress()); 458ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes O << BA->getName(); 459ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes break; 460ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes } 461ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes 462972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_ExternalSymbol: 46310b318bcb39218d2ed525e4862c854bc8d1baf63Chris Lattner O << *GetExternalSymbolSymbol(MO.getSymbolName()); 464972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 465972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 466753a98740bfe3164fd0961a1959306c46135cf19Bruno Cardoso Lopes case MachineOperand::MO_JumpTableIndex: 46733adcfb4d217f5f23d9bde8ba02b8e48f9605fc5Chris Lattner O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() 46812164414dd3daa6974985eeb2e89bfb93cf07641Chris Lattner << '_' << MO.getIndex(); 469753a98740bfe3164fd0961a1959306c46135cf19Bruno Cardoso Lopes break; 470753a98740bfe3164fd0961a1959306c46135cf19Bruno Cardoso Lopes 471972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_ConstantPoolIndex: 47233adcfb4d217f5f23d9bde8ba02b8e48f9605fc5Chris Lattner O << MAI->getPrivateGlobalPrefix() << "CPI" 4738aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << getFunctionNumber() << "_" << MO.getIndex(); 4742045c47affc0d1462a815175e420f9d6bd3f35c6Bruno Cardoso Lopes if (MO.getOffset()) 4752045c47affc0d1462a815175e420f9d6bd3f35c6Bruno Cardoso Lopes O << "+" << MO.getOffset(); 476972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 47781092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes 478972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes default: 479c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("<unknown operand type>"); 480972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes } 481972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 482972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes if (closeP) O << ")"; 483972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes} 484972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 48535c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattnervoid MipsAsmPrinter::printUnsignedImm(const MachineInstr *MI, int opNum, 48635c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner raw_ostream &O) { 487739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopes const MachineOperand &MO = MI->getOperand(opNum); 488a00adba6a7e9b0f6600cb6c8c627bb0c705d2f59Devang Patel if (MO.isImm()) 489739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopes O << (unsigned short int)MO.getImm(); 49081092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes else 49135c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner printOperand(MI, opNum, O); 492739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopes} 493739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopes 494739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopesvoid MipsAsmPrinter:: 49503236be44af1d98eb8daa57e8eb8b7bdd7884523Akira HatanakaprintMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O) { 49681092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes // Load/Store memory operands -- imm($reg) 49781092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes // If PIC target the target is loaded as the 498c7db5618f9e5e708b87d9ae6595b3fd510a2a0c0Bruno Cardoso Lopes // pattern lw $25,%call16($28) 49935c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner printOperand(MI, opNum+1, O); 500d3ac47f80551d95c64cb41c3f94e888d7e13275bAkira Hatanaka O << "("; 501d3ac47f80551d95c64cb41c3f94e888d7e13275bAkira Hatanaka printOperand(MI, opNum, O); 502972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes O << ")"; 503972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes} 504972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 505225ca9cdd70de3d12641b0aba7daf6cb568a7ebdBruno Cardoso Lopesvoid MipsAsmPrinter:: 50603236be44af1d98eb8daa57e8eb8b7bdd7884523Akira HatanakaprintMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O) { 50703236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka // when using stack locations for not load/store instructions 50803236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka // print the same way as all normal 3 operand instructions. 50903236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka printOperand(MI, opNum, O); 51003236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka O << ", "; 51103236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka printOperand(MI, opNum+1, O); 51203236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka return; 51303236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka} 51403236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka 51503236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanakavoid MipsAsmPrinter:: 51635c33bd772b3cfb34fdc6b5c9171f955454d0043Chris LattnerprintFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O, 51735c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner const char *Modifier) { 518864f66085cd9543070ef01b9f7371c110ecd7898Akira Hatanaka const MachineOperand &MO = MI->getOperand(opNum); 51981092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes O << Mips::MipsFCCToString((Mips::CondCode)MO.getImm()); 520225ca9cdd70de3d12641b0aba7daf6cb568a7ebdBruno Cardoso Lopes} 521225ca9cdd70de3d12641b0aba7daf6cb568a7ebdBruno Cardoso Lopes 522812209a58c5520c604bc9279aa069e5ae066e860Bob Wilsonvoid MipsAsmPrinter::EmitStartOfAsmFile(Module &M) { 5236c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner // FIXME: Use SwitchSection. 52481092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes 52543d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes // Tell the assembler which ABI we are using 526ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) 52782099683060abb1f74453d06e78a3729a75ef7eeAkira Hatanaka OutStreamer.EmitRawText("\t.section .mdebug." + 52882099683060abb1f74453d06e78a3729a75ef7eeAkira Hatanaka Twine(getCurrentABIString())); 52943d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 53043d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes // TODO: handle O64 ABI 531ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) { 532ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (Subtarget->isABI_EABI()) { 533ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (Subtarget->isGP32bit()) 534ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.section .gcc_compiled_long32")); 535ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes else 536ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.section .gcc_compiled_long64")); 537ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes } 53875e818ad2f6b809ff6644de2a7c2ec35d68c92eaBenjamin Kramer } 53943d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 54043d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes // return to previous section 541ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) 542ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.previous")); 543c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Carter 544c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Carter} 545c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Carter 546c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Cartervoid MipsAsmPrinter::EmitEndOfAsmFile(Module &M) { 547c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Carter 548c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Carter // Emit Mips ELF register info 549c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Carter Subtarget->getMReginfo().emitMipsReginfoSectionCG( 550c91cbb9b0c90a480299cc7deaef166d47a61d9dfJack Carter OutStreamer, getObjFileLowering(), *Subtarget); 551972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes} 552972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 553c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira HatanakaMachineLocation 554c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira HatanakaMipsAsmPrinter::getDebugValueLocation(const MachineInstr *MI) const { 555c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka // Handles frame addresses emitted in MipsInstrInfo::emitFrameIndexDebugValue. 556c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka assert(MI->getNumOperands() == 4 && "Invalid no. of machine operands!"); 557c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka assert(MI->getOperand(0).isReg() && MI->getOperand(1).isImm() && 558c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka "Unexpected MachineOperand types"); 559c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka return MachineLocation(MI->getOperand(0).getReg(), 560c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka MI->getOperand(1).getImm()); 561c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka} 562c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka 563c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanakavoid MipsAsmPrinter::PrintDebugValueComment(const MachineInstr *MI, 564c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka raw_ostream &OS) { 565c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka // TODO: implement 566c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka} 567c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka 568a96751fc8ff1cc9a225ffbba73de53e2b9e1ae35Bob Wilson// Force static initialization. 56981092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopesextern "C" void LLVMInitializeMipsAsmPrinter() { 5700c795d61878156817cedbac51ec2921f2634c1a5Daniel Dunbar RegisterAsmPrinter<MipsAsmPrinter> X(TheMipsTarget); 5710c795d61878156817cedbac51ec2921f2634c1a5Daniel Dunbar RegisterAsmPrinter<MipsAsmPrinter> Y(TheMipselTarget); 5722464810ac27af8dd8b11da7519b719c254854c19Akira Hatanaka RegisterAsmPrinter<MipsAsmPrinter> A(TheMips64Target); 5732464810ac27af8dd8b11da7519b719c254854c19Akira Hatanaka RegisterAsmPrinter<MipsAsmPrinter> B(TheMips64elTarget); 57451b198af83cb0080c2709b04c129a3d774c07765Daniel Dunbar} 575