MipsAsmPrinter.cpp revision 864f66085cd9543070ef01b9f7371c110ecd7898
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" 16ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "MipsAsmPrinter.h" 1779aa3417eb6f58d668aadfedf075240a41d35a26Craig Topper#include "Mips.h" 18972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes#include "MipsInstrInfo.h" 19794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka#include "InstPrinter/MipsInstPrinter.h" 2047b92f3d8362518596d57269dc53d985bc13323aBruno Cardoso Lopes#include "MCTargetDesc/MipsBaseInfo.h" 21ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/ADT/SmallString.h" 22ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/ADT/StringExtras.h" 23ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/ADT/Twine.h" 24ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/Analysis/DebugInfo.h" 2546773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes#include "llvm/BasicBlock.h" 2646773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes#include "llvm/Instructions.h" 27972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes#include "llvm/CodeGen/MachineFunctionPass.h" 28972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes#include "llvm/CodeGen/MachineConstantPool.h" 29a4e8200366805c665bb1424d8af5550f5d3d6863Bruno Cardoso Lopes#include "llvm/CodeGen/MachineFrameInfo.h" 30972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes#include "llvm/CodeGen/MachineInstr.h" 315c21c9e78ebbb5b766fac31bf30433926dcc2a5dAkira Hatanaka#include "llvm/CodeGen/MachineMemOperand.h" 32ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/Instructions.h" 336c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner#include "llvm/MC/MCStreamer.h" 34af76e592c7f9deff0e55c13dbb4a34f07f1c7f64Chris Lattner#include "llvm/MC/MCAsmInfo.h" 35794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka#include "llvm/MC/MCInst.h" 36325d3dcfe4d5efc91db0f59b20a72a11dea024edChris Lattner#include "llvm/MC/MCSymbol.h" 37ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/Support/TargetRegistry.h" 38ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes#include "llvm/Support/raw_ostream.h" 39d62f1b4168d4327c119642d28c26c836ae6717abChris Lattner#include "llvm/Target/Mangler.h" 40972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes#include "llvm/Target/TargetData.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 52aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanakavoid MipsAsmPrinter::EmitInstruction(const MachineInstr *MI) { 53aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka if (MI->isDebugValue()) { 54ce8524c0160787fc727c16816979302df42b914aBruno Cardoso Lopes SmallString<128> Str; 55ce8524c0160787fc727c16816979302df42b914aBruno Cardoso Lopes raw_svector_ostream OS(Str); 56ce8524c0160787fc727c16816979302df42b914aBruno Cardoso Lopes 57aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka PrintDebugValueComment(MI, OS); 58aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka return; 59aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka } 60972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 61158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka MachineBasicBlock::const_instr_iterator I = MI; 62158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka MachineBasicBlock::const_instr_iterator E = MI->getParent()->instr_end(); 63158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka 64158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka do { 65158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka MCInst TmpInst0; 66158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka MCInstLowering.Lower(I++, TmpInst0); 67158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka OutStreamer.EmitInstruction(TmpInst0); 68158413930f25ecdd0902e1cc11bb8dc3683b94f8Akira Hatanaka } while ((I != E) && I->isInsideBundle()); 69aa08ea0530a2baa7d1d74c492b1bd5af3518ad60Akira Hatanaka} 70972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 714552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 72dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 73dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Mips Asm Directives 74dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 75dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// -- Frame directive "frame Stackpointer, Stacksize, RARegister" 76dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Describe the stack frame. 77dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 7881092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// -- Mask directives "(f)mask bitmask, offset" 79dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Tells the assembler which registers are saved and where. 8081092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// bitmask - contain a little endian bitset indicating which registers are 8181092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// saved on function prologue (e.g. with a 0x80000000 mask, the 82dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// assembler knows the register 31 (RA) is saved at prologue. 8381092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// offset - the position before stack pointer subtraction indicating where 84dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// the first saved register on prologue is located. (e.g. with a 85dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 86dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Consider the following function prologue: 87dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 886ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// .frame $fp,48,$ra 896ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// .mask 0xc0000000,-8 906ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// addiu $sp, $sp, -48 916ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// sw $ra, 40($sp) 926ef781f3ce0d0311004adba9d1e7dbd7950918ddBill Wendling// sw $fp, 36($sp) 93dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 9481092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// With a 0xc0000000 mask, the assembler knows the register 31 (RA) and 9581092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// 30 (FP) are saved at prologue. As the save order on prologue is from 9681092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// left to right, RA is saved first. A -8 offset means that after the 97dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// stack pointer subtration, the first register in the mask (RA) will be 98dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// saved at address 48-8=40. 99dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// 1004552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 101a4e8200366805c665bb1424d8af5550f5d3d6863Bruno Cardoso Lopes 1024552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 10343d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes// Mask directives 1044552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 10543d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 10681092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes// Create a bitmask with all callee saved registers for CPU or Floating Point 107bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes// registers. For CPU registers consider RA, GP and FP for saving if necessary. 10835c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattnervoid MipsAsmPrinter::printSavedRegsBitmask(raw_ostream &O) { 109bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes // CPU and FPU Saved Registers Bitmasks 110f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka unsigned CPUBitmask = 0, FPUBitmask = 0; 111f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka int CPUTopSavedRegOff, FPUTopSavedRegOff; 112dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes 113bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes // Set the CPU and FPU Bitmasks 114a34103f6fa6f21025518596efc73631eb899410bChris Lattner const MachineFrameInfo *MFI = MF->getFrameInfo(); 115dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes const std::vector<CalleeSavedInfo> &CSI = MFI->getCalleeSavedInfo(); 116f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // size of stack area to which FP callee-saved regs are saved. 117420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper unsigned CPURegSize = Mips::CPURegsRegClass.getSize(); 118420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper unsigned FGR32RegSize = Mips::FGR32RegClass.getSize(); 119420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper unsigned AFGR64RegSize = Mips::AFGR64RegClass.getSize(); 120f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka bool HasAFGR64Reg = false; 121f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka unsigned CSFPRegsSize = 0; 122f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka unsigned i, e = CSI.size(); 123f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka 124f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // Set FPU Bitmask. 125f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka for (i = 0; i != e; ++i) { 12642d075c4fb21995265961501cec9ff6e3fb497ceRafael Espindola unsigned Reg = CSI[i].getReg(); 127420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper if (Mips::CPURegsRegClass.contains(Reg)) 128f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka break; 129f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka 130ce8524c0160787fc727c16816979302df42b914aBruno Cardoso Lopes unsigned RegNum = getMipsRegisterNumbering(Reg); 131420761a0f193e87d08ee1c51b26bba23ab4bac7fCraig Topper if (Mips::AFGR64RegClass.contains(Reg)) { 132f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka FPUBitmask |= (3 << RegNum); 133f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka CSFPRegsSize += AFGR64RegSize; 134f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka HasAFGR64Reg = true; 135f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka continue; 136f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka } 137f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka 138f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka FPUBitmask |= (1 << RegNum); 139f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka CSFPRegsSize += FGR32RegSize; 140f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka } 141f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka 142f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // Set CPU Bitmask. 143f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka for (; i != e; ++i) { 144f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka unsigned Reg = CSI[i].getReg(); 145ce8524c0160787fc727c16816979302df42b914aBruno Cardoso Lopes unsigned RegNum = getMipsRegisterNumbering(Reg); 146f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka CPUBitmask |= (1 << RegNum); 147bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes } 148dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes 149f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // FP Regs are saved right below where the virtual frame pointer points to. 150f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka FPUTopSavedRegOff = FPUBitmask ? 151f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka (HasAFGR64Reg ? -AFGR64RegSize : -FGR32RegSize) : 0; 152d0c38176690e9602a93a20a43f1bd084564a8116Anton Korobeynikov 153f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka // CPU Regs are saved below FP Regs. 154f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka CPUTopSavedRegOff = CPUBitmask ? -CSFPRegsSize - CPURegSize : 0; 155dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes 156bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes // Print CPUBitmask 15735c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner O << "\t.mask \t"; printHex32(CPUBitmask, O); 158f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka O << ',' << CPUTopSavedRegOff << '\n'; 159bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes 160bbe51362d53a532942997903a49faa7b5b50ad1fBruno Cardoso Lopes // Print FPUBitmask 161f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka O << "\t.fmask\t"; printHex32(FPUBitmask, O); 162f8928c07e7ab43847770421393da6ad3922e5c8aAkira Hatanaka O << "," << FPUTopSavedRegOff << '\n'; 163dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes} 164dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes 165dc0c04c0ed8a8792e6e5a838f4d5b8c8a0d1988dBruno Cardoso Lopes// Print a 32 bit hex number with all numbers. 16635c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattnervoid MipsAsmPrinter::printHex32(unsigned Value, raw_ostream &O) { 167cb3718832375a581c5ea23f15918f3ea447a446cOwen Anderson O << "0x"; 16881092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes for (int i = 7; i >= 0; i--) 169590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer O.write_hex((Value & (0xF << (i*4))) >> (i*4)); 170a4e8200366805c665bb1424d8af5550f5d3d6863Bruno Cardoso Lopes} 171a4e8200366805c665bb1424d8af5550f5d3d6863Bruno Cardoso Lopes 1724552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 17343d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes// Frame and Set directives 1744552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka//===----------------------------------------------------------------------===// 17543d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 17643d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes/// Frame Directive 1779d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattnervoid MipsAsmPrinter::emitFrameDirective() { 17843d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes const TargetRegisterInfo &RI = *TM.getRegisterInfo(); 17943d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 180a34103f6fa6f21025518596efc73631eb899410bChris Lattner unsigned stackReg = RI.getFrameRegister(*MF); 18143d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes unsigned returnReg = RI.getRARegister(); 182a34103f6fa6f21025518596efc73631eb899410bChris Lattner unsigned stackSize = MF->getFrameInfo()->getStackSize(); 18343d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 184bb481f882093fb738d2bb15610c79364bada5496Jia Liu if (OutStreamer.hasRawTextSupport()) 185ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText("\t.frame\t$" + 186590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer StringRef(MipsInstPrinter::getRegisterName(stackReg)).lower() + 187794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka "," + Twine(stackSize) + ",$" + 188590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer StringRef(MipsInstPrinter::getRegisterName(returnReg)).lower()); 18943d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes} 19043d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 19143d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes/// Emit Set directives. 19281092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopesconst char *MipsAsmPrinter::getCurrentABIString() const { 1939d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner switch (Subtarget->getTargetABI()) { 19481092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes case MipsSubtarget::O32: return "abi32"; 1959d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner case MipsSubtarget::N32: return "abiN32"; 1969d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner case MipsSubtarget::N64: return "abi64"; 1979d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner case MipsSubtarget::EABI: return "eabi32"; // TODO: handle eabi64 198b0934ab7d811e23bf530371976b8b35f3242169cAhmed Charles default: llvm_unreachable("Unknown Mips ABI");; 19943d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes } 20081092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes} 20143d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 2025006071f7a75b81ea9b4cb18d8352e612bb787ecChris Lattnervoid MipsAsmPrinter::EmitFunctionEntryLabel() { 203c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka if (OutStreamer.hasRawTextSupport()) { 204c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka if (Subtarget->inMips16Mode()) 205c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tmips16")); 206c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka else 207c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tnomips16")); 208942918d13e5d6e7401e6b6d5c7443974d591db61Akira Hatanaka // leave out until FSF available gas has micromips changes 209942918d13e5d6e7401e6b6d5c7443974d591db61Akira Hatanaka // OutStreamer.EmitRawText(StringRef("\t.set\tnomicromips")); 210ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText("\t.ent\t" + Twine(CurrentFnSym->getName())); 211c784395a79ba44f12816ab71b6468e40c2c29ccbAkira Hatanaka } 2125006071f7a75b81ea9b4cb18d8352e612bb787ecChris Lattner OutStreamer.EmitLabel(CurrentFnSym); 2135006071f7a75b81ea9b4cb18d8352e612bb787ecChris Lattner} 2145006071f7a75b81ea9b4cb18d8352e612bb787ecChris Lattner 215a34103f6fa6f21025518596efc73631eb899410bChris Lattner/// EmitFunctionBodyStart - Targets can override this to emit stuff before 216a34103f6fa6f21025518596efc73631eb899410bChris Lattner/// the first basic block in the function. 217a34103f6fa6f21025518596efc73631eb899410bChris Lattnervoid MipsAsmPrinter::EmitFunctionBodyStart() { 218f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka MCInstLowering.Initialize(Mang, &MF->getContext()); 219f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka 2209d7efd3081ef13b4d1ac7e0ad4854e92e5f132adChris Lattner emitFrameDirective(); 22181092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes 222ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) { 223ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes SmallString<128> Str; 224ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes raw_svector_ostream OS(Str); 225ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes printSavedRegsBitmask(OS); 226ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(OS.str()); 227f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka 228f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tnoreorder")); 229f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tnomacro")); 230f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka if (MipsFI->getEmitNOAT()) 231f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tnoat")); 2324147e4d054b62eb2ea8259db0385791ec23c460bAkira Hatanaka } 233a34103f6fa6f21025518596efc73631eb899410bChris Lattner} 234972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 235a34103f6fa6f21025518596efc73631eb899410bChris Lattner/// EmitFunctionBodyEnd - Targets can override this to emit stuff after 236a34103f6fa6f21025518596efc73631eb899410bChris Lattner/// the last basic block in the function. 237a34103f6fa6f21025518596efc73631eb899410bChris Lattnervoid MipsAsmPrinter::EmitFunctionBodyEnd() { 238745ec06ad2fa533e9ef47ce572c3a03547376224Chris Lattner // There are instruction for this macros, but they must 239745ec06ad2fa533e9ef47ce572c3a03547376224Chris Lattner // always be at the function end, and we can't emit and 24081092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes // break with BB logic. 241ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) { 242f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka if (MipsFI->getEmitNOAT()) 243f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka OutStreamer.EmitRawText(StringRef("\t.set\tat")); 244f93b86306683f8e860c8824efb717995cb072a70Akira Hatanaka 245ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.set\tmacro")); 246ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.set\treorder")); 247ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText("\t.end\t" + Twine(CurrentFnSym->getName())); 248ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes } 249972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes} 250972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 25146773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes/// isBlockOnlyReachableByFallthough - Return true if the basic block has 25246773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes/// exactly one predecessor and the control transfer mechanism between 25346773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes/// the predecessor and this block is a fall-through. 2544552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanakabool MipsAsmPrinter::isBlockOnlyReachableByFallthrough(const MachineBasicBlock* 2554552c9a3b34ad9b2085635266348d0d9b95514a6Akira Hatanaka MBB) const { 25646773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes // The predecessor has to be immediately before this block. 25746773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes const MachineBasicBlock *Pred = *MBB->pred_begin(); 25846773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes 25946773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes // If the predecessor is a switch statement, assume a jump table 26046773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes // implementation, so it is not a fall through. 26146773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes if (const BasicBlock *bb = Pred->getBasicBlock()) 26246773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes if (isa<SwitchInst>(bb->getTerminator())) 26346773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes return false; 26481092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes 265a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // If this is a landing pad, it isn't a fall through. If it has no preds, 266a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // then nothing falls through to it. 267a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka if (MBB->isLandingPad() || MBB->pred_empty()) 268a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka return false; 269a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka 270a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // If there isn't exactly one predecessor, it can't be a fall through. 271a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka MachineBasicBlock::const_pred_iterator PI = MBB->pred_begin(), PI2 = PI; 272a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka ++PI2; 273bb481f882093fb738d2bb15610c79364bada5496Jia Liu 274a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka if (PI2 != MBB->pred_end()) 275bb481f882093fb738d2bb15610c79364bada5496Jia Liu return false; 276a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka 277a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // The predecessor has to be immediately before this block. 278a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka if (!Pred->isLayoutSuccessor(MBB)) 279a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka return false; 280bb481f882093fb738d2bb15610c79364bada5496Jia Liu 281a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // If the block is completely empty, then it definitely does fall through. 282a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka if (Pred->empty()) 283a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka return true; 284bb481f882093fb738d2bb15610c79364bada5496Jia Liu 285a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // Otherwise, check the last instruction. 286a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka // Check if the last terminator is an unconditional branch. 287a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka MachineBasicBlock::const_iterator I = Pred->end(); 2885a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng while (I != Pred->begin() && !(--I)->isTerminator()) ; 289a4485c49641a492688276a061ddd0cb38d38e270Akira Hatanaka 2905a96b3dad2f634c9081c8b2b6c2575441dc5a2bdEvan Cheng return !I->isBarrier(); 29146773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes} 29246773793cbf18fa0fa4643c91d3b6f5c5bf15dd9Bruno Cardoso Lopes 29391ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes// Print out an operand for an inline asm expression. 29405b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopherbool MipsAsmPrinter::PrintAsmOperand(const MachineInstr *MI, unsigned OpNum, 295c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner unsigned AsmVariant,const char *ExtraCode, 296c75c028a15a13786eee585aa634b4faf694dd00aChris Lattner raw_ostream &O) { 29791ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes // Does this asm operand have a single letter operand modifier? 29805b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher if (ExtraCode && ExtraCode[0]) { 29905b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher if (ExtraCode[1] != 0) return true; // Unknown modifier. 30005b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher 30105b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher const MachineOperand &MO = MI->getOperand(OpNum); 30205b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher switch (ExtraCode[0]) { 30375f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher default: 30475f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return true; // Unknown modifier. 30575f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher case 'X': // hex const int 30675f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher if ((MO.getType()) != MachineOperand::MO_Immediate) 30775f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return true; 30875f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher O << "0x" << StringRef(utohexstr(MO.getImm())).lower(); 30975f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return false; 31075f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher case 'x': // hex const int (low 16 bits) 31175f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher if ((MO.getType()) != MachineOperand::MO_Immediate) 31275f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return true; 31375f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher O << "0x" << StringRef(utohexstr(MO.getImm() & 0xffff)).lower(); 31475f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return false; 31575f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher case 'd': // decimal const int 31675f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher if ((MO.getType()) != MachineOperand::MO_Immediate) 31775f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return true; 31875f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher O << MO.getImm(); 31975f89b54b588521e9e5aac113e3c4f7088bb6106Eric Christopher return false; 3206ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher case 'm': // decimal const int minus 1 3216ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher if ((MO.getType()) != MachineOperand::MO_Immediate) 3226ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher return true; 3236ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher O << MO.getImm() - 1; 3246ab75b4dcbac0a2538177ed34819704f5e5373eeEric Christopher return false; 32505b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher } 32605b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher } 32791ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes 32805b7a50210c1ebdd88fd7799c3d32b8fe1a0ce29Eric Christopher printOperand(MI, OpNum, O); 32991ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes return false; 33091ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes} 33191ef849e6cb01a019dc50ed4e95c058e01616062Bruno Cardoso Lopes 33221afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanakabool MipsAsmPrinter::PrintAsmMemoryOperand(const MachineInstr *MI, 33321afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka unsigned OpNum, unsigned AsmVariant, 33421afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka const char *ExtraCode, 33521afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka raw_ostream &O) { 33621afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka if (ExtraCode && ExtraCode[0]) 33721afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka return true; // Unknown modifier. 338bb481f882093fb738d2bb15610c79364bada5496Jia Liu 33921afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka const MachineOperand &MO = MI->getOperand(OpNum); 34021afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka assert(MO.isReg() && "unexpected inline asm memory operand"); 341794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka O << "0($" << MipsInstPrinter::getRegisterName(MO.getReg()) << ")"; 34221afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka return false; 34321afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka} 34421afc63ea7b8227ccb1b735255be55bf422136d6Akira Hatanaka 34535c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattnervoid MipsAsmPrinter::printOperand(const MachineInstr *MI, int opNum, 34635c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner raw_ostream &O) { 347972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes const MachineOperand &MO = MI->getOperand(opNum); 348c7db5618f9e5e708b87d9ae6595b3fd510a2a0c0Bruno Cardoso Lopes bool closeP = false; 349c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes 350c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes if (MO.getTargetFlags()) 3510c80be59c7ccbd844b5dee71b038090052cac07bBruno Cardoso Lopes closeP = true; 352c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes 353c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes switch(MO.getTargetFlags()) { 354c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes case MipsII::MO_GPREL: O << "%gp_rel("; break; 355c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes case MipsII::MO_GOT_CALL: O << "%call16("; break; 356e2e436a6bc44deb2f989a39514f482b4932b93bcAkira Hatanaka case MipsII::MO_GOT: O << "%got("; break; 357e2e436a6bc44deb2f989a39514f482b4932b93bcAkira Hatanaka case MipsII::MO_ABS_HI: O << "%hi("; break; 358e2e436a6bc44deb2f989a39514f482b4932b93bcAkira Hatanaka case MipsII::MO_ABS_LO: O << "%lo("; break; 359d979686bb47f2dcdca60f0a088f59d1964346453Bruno Cardoso Lopes case MipsII::MO_TLSGD: O << "%tlsgd("; break; 360d979686bb47f2dcdca60f0a088f59d1964346453Bruno Cardoso Lopes case MipsII::MO_GOTTPREL: O << "%gottprel("; break; 361d979686bb47f2dcdca60f0a088f59d1964346453Bruno Cardoso Lopes case MipsII::MO_TPREL_HI: O << "%tprel_hi("; break; 362d979686bb47f2dcdca60f0a088f59d1964346453Bruno Cardoso Lopes case MipsII::MO_TPREL_LO: O << "%tprel_lo("; break; 363e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GPOFF_HI: O << "%hi(%neg(%gp_rel("; break; 364e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GPOFF_LO: O << "%lo(%neg(%gp_rel("; break; 365e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GOT_DISP: O << "%got_disp("; break; 366e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GOT_PAGE: O << "%got_page("; break; 367e33ca9ce1f978b8129972922f1ac0c16eec9e5f1Akira Hatanaka case MipsII::MO_GOT_OFST: O << "%got_ofst("; break; 368972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes } 369c517cb006553320875544f39655c3299124be3eaBruno Cardoso Lopes 370762ccea600158bb317dcccdff3303e942426cb71Chris Lattner switch (MO.getType()) { 371972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_Register: 372794bf17cbe0bac301ef9e52fb4a0295bfdfe0cabAkira Hatanaka O << '$' 373590853667345d6fb191764b9d0bd2ff13589e3a3Benjamin Kramer << StringRef(MipsInstPrinter::getRegisterName(MO.getReg())).lower(); 374972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 375972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 376972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_Immediate: 377ce98deb9f512070fe82518594550dd030b26dd96Akira Hatanaka O << MO.getImm(); 378972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 379972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 380972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_MachineBasicBlock: 3811b2eb0e8a6aaf034675b17be6d853cb1c666200fChris Lattner O << *MO.getMBB()->getSymbol(); 382972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes return; 383972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 384972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_GlobalAddress: 385d62f1b4168d4327c119642d28c26c836ae6717abChris Lattner O << *Mang->getSymbol(MO.getGlobal()); 386972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 387972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 388ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes case MachineOperand::MO_BlockAddress: { 389864f66085cd9543070ef01b9f7371c110ecd7898Akira Hatanaka MCSymbol *BA = GetBlockAddressSymbol(MO.getBlockAddress()); 390ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes O << BA->getName(); 391ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes break; 392ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes } 393ca8a2aa921ec8966b1f0708d77e4dc0a6f1a32f8Bruno Cardoso Lopes 394972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_ExternalSymbol: 39510b318bcb39218d2ed525e4862c854bc8d1baf63Chris Lattner O << *GetExternalSymbolSymbol(MO.getSymbolName()); 396972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 397972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 398753a98740bfe3164fd0961a1959306c46135cf19Bruno Cardoso Lopes case MachineOperand::MO_JumpTableIndex: 39933adcfb4d217f5f23d9bde8ba02b8e48f9605fc5Chris Lattner O << MAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() 40012164414dd3daa6974985eeb2e89bfb93cf07641Chris Lattner << '_' << MO.getIndex(); 401753a98740bfe3164fd0961a1959306c46135cf19Bruno Cardoso Lopes break; 402753a98740bfe3164fd0961a1959306c46135cf19Bruno Cardoso Lopes 403972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes case MachineOperand::MO_ConstantPoolIndex: 40433adcfb4d217f5f23d9bde8ba02b8e48f9605fc5Chris Lattner O << MAI->getPrivateGlobalPrefix() << "CPI" 4058aa797aa51cd4ea1ec6f46f4891a6897944b75b2Chris Lattner << getFunctionNumber() << "_" << MO.getIndex(); 4062045c47affc0d1462a815175e420f9d6bd3f35c6Bruno Cardoso Lopes if (MO.getOffset()) 4072045c47affc0d1462a815175e420f9d6bd3f35c6Bruno Cardoso Lopes O << "+" << MO.getOffset(); 408972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes break; 40981092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes 410972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes default: 411c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("<unknown operand type>"); 412972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes } 413972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 414972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes if (closeP) O << ")"; 415972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes} 416972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 41735c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattnervoid MipsAsmPrinter::printUnsignedImm(const MachineInstr *MI, int opNum, 41835c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner raw_ostream &O) { 419739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopes const MachineOperand &MO = MI->getOperand(opNum); 420a00adba6a7e9b0f6600cb6c8c627bb0c705d2f59Devang Patel if (MO.isImm()) 421739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopes O << (unsigned short int)MO.getImm(); 42281092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes else 42335c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner printOperand(MI, opNum, O); 424739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopes} 425739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopes 426739e441311410796d66e6d72426ef0344e0be98fBruno Cardoso Lopesvoid MipsAsmPrinter:: 42703236be44af1d98eb8daa57e8eb8b7bdd7884523Akira HatanakaprintMemOperand(const MachineInstr *MI, int opNum, raw_ostream &O) { 42881092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes // Load/Store memory operands -- imm($reg) 42981092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes // If PIC target the target is loaded as the 430c7db5618f9e5e708b87d9ae6595b3fd510a2a0c0Bruno Cardoso Lopes // pattern lw $25,%call16($28) 43135c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner printOperand(MI, opNum+1, O); 432d3ac47f80551d95c64cb41c3f94e888d7e13275bAkira Hatanaka O << "("; 433d3ac47f80551d95c64cb41c3f94e888d7e13275bAkira Hatanaka printOperand(MI, opNum, O); 434972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes O << ")"; 435972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes} 436972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 437225ca9cdd70de3d12641b0aba7daf6cb568a7ebdBruno Cardoso Lopesvoid MipsAsmPrinter:: 43803236be44af1d98eb8daa57e8eb8b7bdd7884523Akira HatanakaprintMemOperandEA(const MachineInstr *MI, int opNum, raw_ostream &O) { 43903236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka // when using stack locations for not load/store instructions 44003236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka // print the same way as all normal 3 operand instructions. 44103236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka printOperand(MI, opNum, O); 44203236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka O << ", "; 44303236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka printOperand(MI, opNum+1, O); 44403236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka return; 44503236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka} 44603236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanaka 44703236be44af1d98eb8daa57e8eb8b7bdd7884523Akira Hatanakavoid MipsAsmPrinter:: 44835c33bd772b3cfb34fdc6b5c9171f955454d0043Chris LattnerprintFCCOperand(const MachineInstr *MI, int opNum, raw_ostream &O, 44935c33bd772b3cfb34fdc6b5c9171f955454d0043Chris Lattner const char *Modifier) { 450864f66085cd9543070ef01b9f7371c110ecd7898Akira Hatanaka const MachineOperand &MO = MI->getOperand(opNum); 45181092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes O << Mips::MipsFCCToString((Mips::CondCode)MO.getImm()); 452225ca9cdd70de3d12641b0aba7daf6cb568a7ebdBruno Cardoso Lopes} 453225ca9cdd70de3d12641b0aba7daf6cb568a7ebdBruno Cardoso Lopes 454812209a58c5520c604bc9279aa069e5ae066e860Bob Wilsonvoid MipsAsmPrinter::EmitStartOfAsmFile(Module &M) { 4556c2f9e14fdf14d8c1c687c6bd9918183fa7f8a7fChris Lattner // FIXME: Use SwitchSection. 45681092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopes 45743d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes // Tell the assembler which ABI we are using 458ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) 45982099683060abb1f74453d06e78a3729a75ef7eeAkira Hatanaka OutStreamer.EmitRawText("\t.section .mdebug." + 46082099683060abb1f74453d06e78a3729a75ef7eeAkira Hatanaka Twine(getCurrentABIString())); 46143d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 46243d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes // TODO: handle O64 ABI 463ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) { 464ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (Subtarget->isABI_EABI()) { 465ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (Subtarget->isGP32bit()) 466ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.section .gcc_compiled_long32")); 467ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes else 468ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.section .gcc_compiled_long64")); 469ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes } 47075e818ad2f6b809ff6644de2a7c2ec35d68c92eaBenjamin Kramer } 47143d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes 47243d526d162c69f29a1cc6734014576eade49529bBruno Cardoso Lopes // return to previous section 473ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes if (OutStreamer.hasRawTextSupport()) 474ce1a538ab5b7ae7e0ed48d18c02571280fe105aaBruno Cardoso Lopes OutStreamer.EmitRawText(StringRef("\t.previous")); 475972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes} 476972f5896e417d8e81cf400083fab15a37b6d4277Bruno Cardoso Lopes 477c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira HatanakaMachineLocation 478c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira HatanakaMipsAsmPrinter::getDebugValueLocation(const MachineInstr *MI) const { 479c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka // Handles frame addresses emitted in MipsInstrInfo::emitFrameIndexDebugValue. 480c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka assert(MI->getNumOperands() == 4 && "Invalid no. of machine operands!"); 481c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka assert(MI->getOperand(0).isReg() && MI->getOperand(1).isImm() && 482c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka "Unexpected MachineOperand types"); 483c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka return MachineLocation(MI->getOperand(0).getReg(), 484c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka MI->getOperand(1).getImm()); 485c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka} 486c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka 487c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanakavoid MipsAsmPrinter::PrintDebugValueComment(const MachineInstr *MI, 488c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka raw_ostream &OS) { 489c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka // TODO: implement 490c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka} 491c4f24eb584f6b4dba3caba2ed766c7c4bf1bf8afAkira Hatanaka 492a96751fc8ff1cc9a225ffbba73de53e2b9e1ae35Bob Wilson// Force static initialization. 49381092dc20abe5253a5b4d48a75997baa84dde196Bruno Cardoso Lopesextern "C" void LLVMInitializeMipsAsmPrinter() { 4940c795d61878156817cedbac51ec2921f2634c1a5Daniel Dunbar RegisterAsmPrinter<MipsAsmPrinter> X(TheMipsTarget); 4950c795d61878156817cedbac51ec2921f2634c1a5Daniel Dunbar RegisterAsmPrinter<MipsAsmPrinter> Y(TheMipselTarget); 4962464810ac27af8dd8b11da7519b719c254854c19Akira Hatanaka RegisterAsmPrinter<MipsAsmPrinter> A(TheMips64Target); 4972464810ac27af8dd8b11da7519b719c254854c19Akira Hatanaka RegisterAsmPrinter<MipsAsmPrinter> B(TheMips64elTarget); 49851b198af83cb0080c2709b04c129a3d774c07765Daniel Dunbar} 499