summaryrefslogtreecommitdiffstats
path: root/llvm/lib/Target/X86/MCTargetDesc/X86IntelInstPrinter.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'llvm/lib/Target/X86/MCTargetDesc/X86IntelInstPrinter.cpp')
-rw-r--r--llvm/lib/Target/X86/MCTargetDesc/X86IntelInstPrinter.cpp445
1 files changed, 445 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/MCTargetDesc/X86IntelInstPrinter.cpp b/llvm/lib/Target/X86/MCTargetDesc/X86IntelInstPrinter.cpp
new file mode 100644
index 00000000000..ea28bef4256
--- /dev/null
+++ b/llvm/lib/Target/X86/MCTargetDesc/X86IntelInstPrinter.cpp
@@ -0,0 +1,445 @@
+//===-- X86IntelInstPrinter.cpp - Intel assembly instruction printing -----===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file includes code for rendering MCInst instances as Intel-style
+// assembly.
+//
+//===----------------------------------------------------------------------===//
+
+#include "X86IntelInstPrinter.h"
+#include "X86BaseInfo.h"
+#include "X86InstComments.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCInst.h"
+#include "llvm/MC/MCInstrDesc.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/MC/MCSubtargetInfo.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/ErrorHandling.h"
+#include <cassert>
+#include <cstdint>
+
+using namespace llvm;
+
+#define DEBUG_TYPE "asm-printer"
+
+// Include the auto-generated portion of the assembly writer.
+#define PRINT_ALIAS_INSTR
+#include "X86GenAsmWriter1.inc"
+
+void X86IntelInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
+ OS << getRegisterName(RegNo);
+}
+
+void X86IntelInstPrinter::printInst(const MCInst *MI, raw_ostream &OS,
+ StringRef Annot,
+ const MCSubtargetInfo &STI) {
+ printInstFlags(MI, OS);
+
+ // In 16-bit mode, print data16 as data32.
+ if (MI->getOpcode() == X86::DATA16_PREFIX &&
+ STI.getFeatureBits()[X86::Mode16Bit]) {
+ OS << "\tdata32";
+ } else if (!printAliasInstr(MI, OS) &&
+ !printVecCompareInstr(MI, OS))
+ printInstruction(MI, OS);
+
+ // Next always print the annotation.
+ printAnnotation(OS, Annot);
+
+ // If verbose assembly is enabled, we can print some informative comments.
+ if (CommentStream)
+ EmitAnyX86InstComments(MI, *CommentStream, MII);
+}
+
+bool X86IntelInstPrinter::printVecCompareInstr(const MCInst *MI, raw_ostream &OS) {
+ if (MI->getNumOperands() == 0 ||
+ !MI->getOperand(MI->getNumOperands() - 1).isImm())
+ return false;
+
+ int64_t Imm = MI->getOperand(MI->getNumOperands() - 1).getImm();
+
+ const MCInstrDesc &Desc = MII.get(MI->getOpcode());
+
+ // Custom print the vector compare instructions to get the immediate
+ // translated into the mnemonic.
+ switch (MI->getOpcode()) {
+ case X86::CMPPDrmi: case X86::CMPPDrri:
+ case X86::CMPPSrmi: case X86::CMPPSrri:
+ case X86::CMPSDrm: case X86::CMPSDrr:
+ case X86::CMPSDrm_Int: case X86::CMPSDrr_Int:
+ case X86::CMPSSrm: case X86::CMPSSrr:
+ case X86::CMPSSrm_Int: case X86::CMPSSrr_Int:
+ if (Imm >= 0 && Imm <= 7) {
+ OS << '\t';
+ printCMPMnemonic(MI, /*IsVCMP*/false, OS);
+ printOperand(MI, 0, OS);
+ OS << ", ";
+ // Skip operand 1 as its tied to the dest.
+
+ if ((Desc.TSFlags & X86II::FormMask) == X86II::MRMSrcMem) {
+ if ((Desc.TSFlags & X86II::OpPrefixMask) == X86II::XS)
+ printdwordmem(MI, 2, OS);
+ else if ((Desc.TSFlags & X86II::OpPrefixMask) == X86II::XD)
+ printqwordmem(MI, 2, OS);
+ else
+ printxmmwordmem(MI, 2, OS);
+ } else
+ printOperand(MI, 2, OS);
+
+ return true;
+ }
+ break;
+
+ case X86::VCMPPDrmi: case X86::VCMPPDrri:
+ case X86::VCMPPDYrmi: case X86::VCMPPDYrri:
+ case X86::VCMPPDZ128rmi: case X86::VCMPPDZ128rri:
+ case X86::VCMPPDZ256rmi: case X86::VCMPPDZ256rri:
+ case X86::VCMPPDZrmi: case X86::VCMPPDZrri:
+ case X86::VCMPPSrmi: case X86::VCMPPSrri:
+ case X86::VCMPPSYrmi: case X86::VCMPPSYrri:
+ case X86::VCMPPSZ128rmi: case X86::VCMPPSZ128rri:
+ case X86::VCMPPSZ256rmi: case X86::VCMPPSZ256rri:
+ case X86::VCMPPSZrmi: case X86::VCMPPSZrri:
+ case X86::VCMPSDrm: case X86::VCMPSDrr:
+ case X86::VCMPSDZrm: case X86::VCMPSDZrr:
+ case X86::VCMPSDrm_Int: case X86::VCMPSDrr_Int:
+ case X86::VCMPSDZrm_Int: case X86::VCMPSDZrr_Int:
+ case X86::VCMPSSrm: case X86::VCMPSSrr:
+ case X86::VCMPSSZrm: case X86::VCMPSSZrr:
+ case X86::VCMPSSrm_Int: case X86::VCMPSSrr_Int:
+ case X86::VCMPSSZrm_Int: case X86::VCMPSSZrr_Int:
+ case X86::VCMPPDZ128rmik: case X86::VCMPPDZ128rrik:
+ case X86::VCMPPDZ256rmik: case X86::VCMPPDZ256rrik:
+ case X86::VCMPPDZrmik: case X86::VCMPPDZrrik:
+ case X86::VCMPPSZ128rmik: case X86::VCMPPSZ128rrik:
+ case X86::VCMPPSZ256rmik: case X86::VCMPPSZ256rrik:
+ case X86::VCMPPSZrmik: case X86::VCMPPSZrrik:
+ case X86::VCMPSDZrm_Intk: case X86::VCMPSDZrr_Intk:
+ case X86::VCMPSSZrm_Intk: case X86::VCMPSSZrr_Intk:
+ case X86::VCMPPDZ128rmbi: case X86::VCMPPDZ128rmbik:
+ case X86::VCMPPDZ256rmbi: case X86::VCMPPDZ256rmbik:
+ case X86::VCMPPDZrmbi: case X86::VCMPPDZrmbik:
+ case X86::VCMPPSZ128rmbi: case X86::VCMPPSZ128rmbik:
+ case X86::VCMPPSZ256rmbi: case X86::VCMPPSZ256rmbik:
+ case X86::VCMPPSZrmbi: case X86::VCMPPSZrmbik:
+ case X86::VCMPPDZrrib: case X86::VCMPPDZrribk:
+ case X86::VCMPPSZrrib: case X86::VCMPPSZrribk:
+ case X86::VCMPSDZrrb_Int: case X86::VCMPSDZrrb_Intk:
+ case X86::VCMPSSZrrb_Int: case X86::VCMPSSZrrb_Intk:
+ if (Imm >= 0 && Imm <= 31) {
+ OS << '\t';
+ printCMPMnemonic(MI, /*IsVCMP*/true, OS);
+
+ unsigned CurOp = 0;
+ printOperand(MI, CurOp++, OS);
+
+ if (Desc.TSFlags & X86II::EVEX_K) {
+ // Print mask operand.
+ OS << " {";
+ printOperand(MI, CurOp++, OS);
+ OS << "}";
+ }
+ OS << ", ";
+ printOperand(MI, CurOp++, OS);
+ OS << ", ";
+
+ if ((Desc.TSFlags & X86II::FormMask) == X86II::MRMSrcMem) {
+ if (Desc.TSFlags & X86II::EVEX_B) {
+ // Broadcast form.
+ // Load size is based on W-bit.
+ if (Desc.TSFlags & X86II::VEX_W)
+ printqwordmem(MI, CurOp++, OS);
+ else
+ printdwordmem(MI, CurOp++, OS);
+
+ // Print the number of elements broadcasted.
+ unsigned NumElts;
+ if (Desc.TSFlags & X86II::EVEX_L2)
+ NumElts = (Desc.TSFlags & X86II::VEX_W) ? 8 : 16;
+ else if (Desc.TSFlags & X86II::VEX_L)
+ NumElts = (Desc.TSFlags & X86II::VEX_W) ? 4 : 8;
+ else
+ NumElts = (Desc.TSFlags & X86II::VEX_W) ? 2 : 4;
+ OS << "{1to" << NumElts << "}";
+ } else {
+ if ((Desc.TSFlags & X86II::OpPrefixMask) == X86II::XS)
+ printdwordmem(MI, CurOp++, OS);
+ else if ((Desc.TSFlags & X86II::OpPrefixMask) == X86II::XD)
+ printqwordmem(MI, CurOp++, OS);
+ else if (Desc.TSFlags & X86II::EVEX_L2)
+ printzmmwordmem(MI, CurOp++, OS);
+ else if (Desc.TSFlags & X86II::VEX_L)
+ printymmwordmem(MI, CurOp++, OS);
+ else
+ printxmmwordmem(MI, CurOp++, OS);
+ }
+ } else {
+ printOperand(MI, CurOp++, OS);
+ if (Desc.TSFlags & X86II::EVEX_B)
+ OS << ", {sae}";
+ }
+
+ return true;
+ }
+ break;
+
+ case X86::VPCOMBmi: case X86::VPCOMBri:
+ case X86::VPCOMDmi: case X86::VPCOMDri:
+ case X86::VPCOMQmi: case X86::VPCOMQri:
+ case X86::VPCOMUBmi: case X86::VPCOMUBri:
+ case X86::VPCOMUDmi: case X86::VPCOMUDri:
+ case X86::VPCOMUQmi: case X86::VPCOMUQri:
+ case X86::VPCOMUWmi: case X86::VPCOMUWri:
+ case X86::VPCOMWmi: case X86::VPCOMWri:
+ if (Imm >= 0 && Imm <= 7) {
+ OS << '\t';
+ printVPCOMMnemonic(MI, OS);
+ printOperand(MI, 0, OS);
+ OS << ", ";
+ printOperand(MI, 1, OS);
+ OS << ", ";
+ if ((Desc.TSFlags & X86II::FormMask) == X86II::MRMSrcMem)
+ printxmmwordmem(MI, 2, OS);
+ else
+ printOperand(MI, 2, OS);
+ return true;
+ }
+ break;
+
+ case X86::VPCMPBZ128rmi: case X86::VPCMPBZ128rri:
+ case X86::VPCMPBZ256rmi: case X86::VPCMPBZ256rri:
+ case X86::VPCMPBZrmi: case X86::VPCMPBZrri:
+ case X86::VPCMPDZ128rmi: case X86::VPCMPDZ128rri:
+ case X86::VPCMPDZ256rmi: case X86::VPCMPDZ256rri:
+ case X86::VPCMPDZrmi: case X86::VPCMPDZrri:
+ case X86::VPCMPQZ128rmi: case X86::VPCMPQZ128rri:
+ case X86::VPCMPQZ256rmi: case X86::VPCMPQZ256rri:
+ case X86::VPCMPQZrmi: case X86::VPCMPQZrri:
+ case X86::VPCMPUBZ128rmi: case X86::VPCMPUBZ128rri:
+ case X86::VPCMPUBZ256rmi: case X86::VPCMPUBZ256rri:
+ case X86::VPCMPUBZrmi: case X86::VPCMPUBZrri:
+ case X86::VPCMPUDZ128rmi: case X86::VPCMPUDZ128rri:
+ case X86::VPCMPUDZ256rmi: case X86::VPCMPUDZ256rri:
+ case X86::VPCMPUDZrmi: case X86::VPCMPUDZrri:
+ case X86::VPCMPUQZ128rmi: case X86::VPCMPUQZ128rri:
+ case X86::VPCMPUQZ256rmi: case X86::VPCMPUQZ256rri:
+ case X86::VPCMPUQZrmi: case X86::VPCMPUQZrri:
+ case X86::VPCMPUWZ128rmi: case X86::VPCMPUWZ128rri:
+ case X86::VPCMPUWZ256rmi: case X86::VPCMPUWZ256rri:
+ case X86::VPCMPUWZrmi: case X86::VPCMPUWZrri:
+ case X86::VPCMPWZ128rmi: case X86::VPCMPWZ128rri:
+ case X86::VPCMPWZ256rmi: case X86::VPCMPWZ256rri:
+ case X86::VPCMPWZrmi: case X86::VPCMPWZrri:
+ case X86::VPCMPBZ128rmik: case X86::VPCMPBZ128rrik:
+ case X86::VPCMPBZ256rmik: case X86::VPCMPBZ256rrik:
+ case X86::VPCMPBZrmik: case X86::VPCMPBZrrik:
+ case X86::VPCMPDZ128rmik: case X86::VPCMPDZ128rrik:
+ case X86::VPCMPDZ256rmik: case X86::VPCMPDZ256rrik:
+ case X86::VPCMPDZrmik: case X86::VPCMPDZrrik:
+ case X86::VPCMPQZ128rmik: case X86::VPCMPQZ128rrik:
+ case X86::VPCMPQZ256rmik: case X86::VPCMPQZ256rrik:
+ case X86::VPCMPQZrmik: case X86::VPCMPQZrrik:
+ case X86::VPCMPUBZ128rmik: case X86::VPCMPUBZ128rrik:
+ case X86::VPCMPUBZ256rmik: case X86::VPCMPUBZ256rrik:
+ case X86::VPCMPUBZrmik: case X86::VPCMPUBZrrik:
+ case X86::VPCMPUDZ128rmik: case X86::VPCMPUDZ128rrik:
+ case X86::VPCMPUDZ256rmik: case X86::VPCMPUDZ256rrik:
+ case X86::VPCMPUDZrmik: case X86::VPCMPUDZrrik:
+ case X86::VPCMPUQZ128rmik: case X86::VPCMPUQZ128rrik:
+ case X86::VPCMPUQZ256rmik: case X86::VPCMPUQZ256rrik:
+ case X86::VPCMPUQZrmik: case X86::VPCMPUQZrrik:
+ case X86::VPCMPUWZ128rmik: case X86::VPCMPUWZ128rrik:
+ case X86::VPCMPUWZ256rmik: case X86::VPCMPUWZ256rrik:
+ case X86::VPCMPUWZrmik: case X86::VPCMPUWZrrik:
+ case X86::VPCMPWZ128rmik: case X86::VPCMPWZ128rrik:
+ case X86::VPCMPWZ256rmik: case X86::VPCMPWZ256rrik:
+ case X86::VPCMPWZrmik: case X86::VPCMPWZrrik:
+ case X86::VPCMPDZ128rmib: case X86::VPCMPDZ128rmibk:
+ case X86::VPCMPDZ256rmib: case X86::VPCMPDZ256rmibk:
+ case X86::VPCMPDZrmib: case X86::VPCMPDZrmibk:
+ case X86::VPCMPQZ128rmib: case X86::VPCMPQZ128rmibk:
+ case X86::VPCMPQZ256rmib: case X86::VPCMPQZ256rmibk:
+ case X86::VPCMPQZrmib: case X86::VPCMPQZrmibk:
+ case X86::VPCMPUDZ128rmib: case X86::VPCMPUDZ128rmibk:
+ case X86::VPCMPUDZ256rmib: case X86::VPCMPUDZ256rmibk:
+ case X86::VPCMPUDZrmib: case X86::VPCMPUDZrmibk:
+ case X86::VPCMPUQZ128rmib: case X86::VPCMPUQZ128rmibk:
+ case X86::VPCMPUQZ256rmib: case X86::VPCMPUQZ256rmibk:
+ case X86::VPCMPUQZrmib: case X86::VPCMPUQZrmibk:
+ if ((Imm >= 0 && Imm <= 2) || (Imm >= 4 && Imm <= 6)) {
+ OS << '\t';
+ printVPCMPMnemonic(MI, OS);
+
+ unsigned CurOp = 0;
+ printOperand(MI, CurOp++, OS);
+
+ if (Desc.TSFlags & X86II::EVEX_K) {
+ // Print mask operand.
+ OS << " {";
+ printOperand(MI, CurOp++, OS);
+ OS << "}";
+ }
+ OS << ", ";
+ printOperand(MI, CurOp++, OS);
+ OS << ", ";
+
+ if ((Desc.TSFlags & X86II::FormMask) == X86II::MRMSrcMem) {
+ if (Desc.TSFlags & X86II::EVEX_B) {
+ // Broadcast form.
+ // Load size is based on W-bit as only D and Q are supported.
+ if (Desc.TSFlags & X86II::VEX_W)
+ printqwordmem(MI, CurOp++, OS);
+ else
+ printdwordmem(MI, CurOp++, OS);
+
+ // Print the number of elements broadcasted.
+ unsigned NumElts;
+ if (Desc.TSFlags & X86II::EVEX_L2)
+ NumElts = (Desc.TSFlags & X86II::VEX_W) ? 8 : 16;
+ else if (Desc.TSFlags & X86II::VEX_L)
+ NumElts = (Desc.TSFlags & X86II::VEX_W) ? 4 : 8;
+ else
+ NumElts = (Desc.TSFlags & X86II::VEX_W) ? 2 : 4;
+ OS << "{1to" << NumElts << "}";
+ } else {
+ if (Desc.TSFlags & X86II::EVEX_L2)
+ printzmmwordmem(MI, CurOp++, OS);
+ else if (Desc.TSFlags & X86II::VEX_L)
+ printymmwordmem(MI, CurOp++, OS);
+ else
+ printxmmwordmem(MI, CurOp++, OS);
+ }
+ } else {
+ printOperand(MI, CurOp++, OS);
+ }
+
+ return true;
+ }
+ break;
+ }
+
+ return false;
+}
+
+void X86IntelInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
+ raw_ostream &O) {
+ const MCOperand &Op = MI->getOperand(OpNo);
+ if (Op.isReg()) {
+ printRegName(O, Op.getReg());
+ } else if (Op.isImm()) {
+ O << formatImm((int64_t)Op.getImm());
+ } else {
+ assert(Op.isExpr() && "unknown operand kind in printOperand");
+ O << "offset ";
+ Op.getExpr()->print(O, &MAI);
+ }
+}
+
+void X86IntelInstPrinter::printMemReference(const MCInst *MI, unsigned Op,
+ raw_ostream &O) {
+ const MCOperand &BaseReg = MI->getOperand(Op+X86::AddrBaseReg);
+ unsigned ScaleVal = MI->getOperand(Op+X86::AddrScaleAmt).getImm();
+ const MCOperand &IndexReg = MI->getOperand(Op+X86::AddrIndexReg);
+ const MCOperand &DispSpec = MI->getOperand(Op+X86::AddrDisp);
+
+ // If this has a segment register, print it.
+ printOptionalSegReg(MI, Op + X86::AddrSegmentReg, O);
+
+ O << '[';
+
+ bool NeedPlus = false;
+ if (BaseReg.getReg()) {
+ printOperand(MI, Op+X86::AddrBaseReg, O);
+ NeedPlus = true;
+ }
+
+ if (IndexReg.getReg()) {
+ if (NeedPlus) O << " + ";
+ if (ScaleVal != 1)
+ O << ScaleVal << '*';
+ printOperand(MI, Op+X86::AddrIndexReg, O);
+ NeedPlus = true;
+ }
+
+ if (!DispSpec.isImm()) {
+ if (NeedPlus) O << " + ";
+ assert(DispSpec.isExpr() && "non-immediate displacement for LEA?");
+ DispSpec.getExpr()->print(O, &MAI);
+ } else {
+ int64_t DispVal = DispSpec.getImm();
+ if (DispVal || (!IndexReg.getReg() && !BaseReg.getReg())) {
+ if (NeedPlus) {
+ if (DispVal > 0)
+ O << " + ";
+ else {
+ O << " - ";
+ DispVal = -DispVal;
+ }
+ }
+ O << formatImm(DispVal);
+ }
+ }
+
+ O << ']';
+}
+
+void X86IntelInstPrinter::printSrcIdx(const MCInst *MI, unsigned Op,
+ raw_ostream &O) {
+ // If this has a segment register, print it.
+ printOptionalSegReg(MI, Op + 1, O);
+ O << '[';
+ printOperand(MI, Op, O);
+ O << ']';
+}
+
+void X86IntelInstPrinter::printDstIdx(const MCInst *MI, unsigned Op,
+ raw_ostream &O) {
+ // DI accesses are always ES-based.
+ O << "es:[";
+ printOperand(MI, Op, O);
+ O << ']';
+}
+
+void X86IntelInstPrinter::printMemOffset(const MCInst *MI, unsigned Op,
+ raw_ostream &O) {
+ const MCOperand &DispSpec = MI->getOperand(Op);
+
+ // If this has a segment register, print it.
+ printOptionalSegReg(MI, Op + 1, O);
+
+ O << '[';
+
+ if (DispSpec.isImm()) {
+ O << formatImm(DispSpec.getImm());
+ } else {
+ assert(DispSpec.isExpr() && "non-immediate displacement?");
+ DispSpec.getExpr()->print(O, &MAI);
+ }
+
+ O << ']';
+}
+
+void X86IntelInstPrinter::printU8Imm(const MCInst *MI, unsigned Op,
+ raw_ostream &O) {
+ if (MI->getOperand(Op).isExpr())
+ return MI->getOperand(Op).getExpr()->print(O, &MAI);
+
+ O << formatImm(MI->getOperand(Op).getImm() & 0xff);
+}
+
+void X86IntelInstPrinter::printSTiRegOperand(const MCInst *MI, unsigned OpNo,
+ raw_ostream &OS) {
+ const MCOperand &Op = MI->getOperand(OpNo);
+ unsigned Reg = Op.getReg();
+ // Override the default printing to print st(0) instead st.
+ if (Reg == X86::ST0)
+ OS << "st(0)";
+ else
+ printRegName(OS, Reg);
+}
OpenPOWER on IntegriCloud