2009-09-20 07:41:30 +00:00
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//===-- X86AsmPrinter.h - Convert X86 LLVM code to assembly -----*- C++ -*-===//
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2005-07-01 22:44:09 +00:00
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//
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// The LLVM Compiler Infrastructure
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//
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2007-12-29 20:36:04 +00:00
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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2005-07-01 22:44:09 +00:00
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//
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//===----------------------------------------------------------------------===//
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//
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// AT&T assembly code printer class.
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//
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//===----------------------------------------------------------------------===//
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2009-09-20 07:41:30 +00:00
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#ifndef X86ASMPRINTER_H
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#define X86ASMPRINTER_H
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2005-07-01 22:44:09 +00:00
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2008-08-17 18:24:26 +00:00
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#include "../X86.h"
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#include "../X86MachineFunctionInfo.h"
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#include "../X86TargetMachine.h"
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2008-06-28 11:08:27 +00:00
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#include "llvm/ADT/StringSet.h"
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#include "llvm/CodeGen/AsmPrinter.h"
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#include "llvm/CodeGen/DwarfWriter.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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2005-07-01 22:44:09 +00:00
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#include "llvm/CodeGen/ValueTypes.h"
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2008-06-28 11:08:27 +00:00
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#include "llvm/Support/Compiler.h"
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2005-07-01 22:44:09 +00:00
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namespace llvm {
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2009-05-12 21:55:29 +00:00
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class MachineJumpTableInfo;
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2009-06-24 05:46:28 +00:00
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class MCContext;
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2009-06-19 00:47:33 +00:00
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class MCInst;
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2009-06-24 05:46:28 +00:00
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class MCStreamer;
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2009-08-16 04:28:14 +00:00
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class MCSymbol;
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2008-06-28 11:08:27 +00:00
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2009-09-20 07:35:34 +00:00
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class VISIBILITY_HIDDEN X86AsmPrinter : public AsmPrinter {
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2008-06-28 11:08:27 +00:00
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const X86Subtarget *Subtarget;
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2009-02-24 08:30:20 +00:00
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public:
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2009-09-20 07:35:34 +00:00
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explicit X86AsmPrinter(formatted_raw_ostream &O, TargetMachine &TM,
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2010-02-02 23:37:42 +00:00
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MCContext &Ctx, MCStreamer &Streamer,
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const MCAsmInfo *T)
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: AsmPrinter(O, TM, Ctx, Streamer, T) {
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2008-06-28 11:08:27 +00:00
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Subtarget = &TM.getSubtarget<X86Subtarget>();
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}
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2005-07-01 22:44:09 +00:00
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virtual const char *getPassName() const {
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return "X86 AT&T-Style Assembly Printer";
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}
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2009-09-12 20:34:57 +00:00
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const X86Subtarget &getSubtarget() const { return *Subtarget; }
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2005-07-01 22:44:09 +00:00
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2008-06-28 11:08:27 +00:00
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void getAnalysisUsage(AnalysisUsage &AU) const {
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AU.setPreservesAll();
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2009-09-24 21:45:57 +00:00
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AU.addRequired<MachineModuleInfo>();
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2009-01-08 23:40:34 +00:00
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AU.addRequired<DwarfWriter>();
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2008-06-28 11:08:27 +00:00
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AsmPrinter::getAnalysisUsage(AU);
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}
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2009-09-18 20:22:52 +00:00
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virtual void EmitEndOfAsmFile(Module &M);
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2010-01-28 01:02:27 +00:00
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virtual void EmitInstruction(const MachineInstr *MI);
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2009-07-13 21:41:08 +00:00
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void printSymbolOperand(const MachineOperand &MO);
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2009-06-19 23:59:57 +00:00
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2005-07-01 22:44:09 +00:00
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2006-02-06 23:41:19 +00:00
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// These methods are used by the tablegen'erated instruction printer.
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void printOperand(const MachineInstr *MI, unsigned OpNo,
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Reimplement rip-relative addressing in the X86-64 backend. The new
implementation primarily differs from the former in that the asmprinter
doesn't make a zillion decisions about whether or not something will be
RIP relative or not. Instead, those decisions are made by isel lowering
and propagated through to the asm printer. To achieve this, we:
1. Represent RIP relative addresses by setting the base of the X86 addr
mode to X86::RIP.
2. When ISel Lowering decides that it is safe to use RIP, it lowers to
X86ISD::WrapperRIP. When it is unsafe to use RIP, it lowers to
X86ISD::Wrapper as before.
3. This removes isRIPRel from X86ISelAddressMode, representing it with
a basereg of RIP instead.
4. The addressing mode matching logic in isel is greatly simplified.
5. The asmprinter is greatly simplified, notably the "NotRIPRel" predicate
passed through various printoperand routines is gone now.
6. The various symbol printing routines in asmprinter now no longer infer
when to emit (%rip), they just print the symbol.
I think this is a big improvement over the previous situation. It does have
two small caveats though: 1. I implemented a horrible "no-rip" modifier for
the inline asm "P" constraint modifier. This is a short term hack, there is
a much better, but more involved, solution. 2. I had to xfail an
-aggressive-remat testcase because it isn't handling the use of RIP in the
constant-pool reading instruction. This specific test is easy to fix without
-aggressive-remat, which I intend to do next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 04:16:01 +00:00
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const char *Modifier = 0);
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2009-06-20 19:34:09 +00:00
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void print_pcrel_imm(const MachineInstr *MI, unsigned OpNo);
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2009-09-03 00:04:47 +00:00
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void printopaquemem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2005-11-30 18:54:35 +00:00
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void printi8mem(const MachineInstr *MI, unsigned OpNo) {
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2005-07-01 22:44:09 +00:00
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printMemReference(MI, OpNo);
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}
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2005-11-30 18:54:35 +00:00
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void printi16mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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void printi32mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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void printi64mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2006-02-22 02:26:30 +00:00
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void printi128mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2005-11-30 18:54:35 +00:00
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void printf32mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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void printf64mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2007-08-05 18:49:15 +00:00
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void printf80mem(const MachineInstr *MI, unsigned OpNo) {
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printMemReference(MI, OpNo);
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}
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2006-01-31 22:28:30 +00:00
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void printf128mem(const MachineInstr *MI, unsigned OpNo) {
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2005-11-30 18:54:35 +00:00
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printMemReference(MI, OpNo);
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}
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2009-04-08 21:14:34 +00:00
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void printlea32mem(const MachineInstr *MI, unsigned OpNo) {
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printLeaMemReference(MI, OpNo);
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}
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void printlea64mem(const MachineInstr *MI, unsigned OpNo) {
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printLeaMemReference(MI, OpNo);
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}
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2006-09-08 06:48:29 +00:00
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void printlea64_32mem(const MachineInstr *MI, unsigned OpNo) {
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2009-04-08 21:14:34 +00:00
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printLeaMemReference(MI, OpNo, "subreg64");
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2006-09-08 06:48:29 +00:00
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}
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2008-06-28 11:08:27 +00:00
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2009-06-15 04:42:32 +00:00
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bool printAsmMRegister(const MachineOperand &MO, char Mode);
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2008-06-28 11:09:48 +00:00
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bool PrintAsmOperand(const MachineInstr *MI, unsigned OpNo,
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2006-04-28 21:19:05 +00:00
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unsigned AsmVariant, const char *ExtraCode);
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2008-06-28 11:09:48 +00:00
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bool PrintAsmMemoryOperand(const MachineInstr *MI, unsigned OpNo,
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2006-04-28 21:19:05 +00:00
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unsigned AsmVariant, const char *ExtraCode);
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2008-06-28 11:08:27 +00:00
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2006-04-28 23:11:40 +00:00
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void printMachineInstruction(const MachineInstr *MI);
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2005-11-30 18:54:35 +00:00
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void printSSECC(const MachineInstr *MI, unsigned Op);
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2006-09-08 06:48:29 +00:00
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void printMemReference(const MachineInstr *MI, unsigned Op,
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Reimplement rip-relative addressing in the X86-64 backend. The new
implementation primarily differs from the former in that the asmprinter
doesn't make a zillion decisions about whether or not something will be
RIP relative or not. Instead, those decisions are made by isel lowering
and propagated through to the asm printer. To achieve this, we:
1. Represent RIP relative addresses by setting the base of the X86 addr
mode to X86::RIP.
2. When ISel Lowering decides that it is safe to use RIP, it lowers to
X86ISD::WrapperRIP. When it is unsafe to use RIP, it lowers to
X86ISD::Wrapper as before.
3. This removes isRIPRel from X86ISelAddressMode, representing it with
a basereg of RIP instead.
4. The addressing mode matching logic in isel is greatly simplified.
5. The asmprinter is greatly simplified, notably the "NotRIPRel" predicate
passed through various printoperand routines is gone now.
6. The various symbol printing routines in asmprinter now no longer infer
when to emit (%rip), they just print the symbol.
I think this is a big improvement over the previous situation. It does have
two small caveats though: 1. I implemented a horrible "no-rip" modifier for
the inline asm "P" constraint modifier. This is a short term hack, there is
a much better, but more involved, solution. 2. I had to xfail an
-aggressive-remat testcase because it isn't handling the use of RIP in the
constant-pool reading instruction. This specific test is easy to fix without
-aggressive-remat, which I intend to do next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 04:16:01 +00:00
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const char *Modifier=NULL);
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2009-04-08 21:14:34 +00:00
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void printLeaMemReference(const MachineInstr *MI, unsigned Op,
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Reimplement rip-relative addressing in the X86-64 backend. The new
implementation primarily differs from the former in that the asmprinter
doesn't make a zillion decisions about whether or not something will be
RIP relative or not. Instead, those decisions are made by isel lowering
and propagated through to the asm printer. To achieve this, we:
1. Represent RIP relative addresses by setting the base of the X86 addr
mode to X86::RIP.
2. When ISel Lowering decides that it is safe to use RIP, it lowers to
X86ISD::WrapperRIP. When it is unsafe to use RIP, it lowers to
X86ISD::Wrapper as before.
3. This removes isRIPRel from X86ISelAddressMode, representing it with
a basereg of RIP instead.
4. The addressing mode matching logic in isel is greatly simplified.
5. The asmprinter is greatly simplified, notably the "NotRIPRel" predicate
passed through various printoperand routines is gone now.
6. The various symbol printing routines in asmprinter now no longer infer
when to emit (%rip), they just print the symbol.
I think this is a big improvement over the previous situation. It does have
two small caveats though: 1. I implemented a horrible "no-rip" modifier for
the inline asm "P" constraint modifier. This is a short term hack, there is
a much better, but more involved, solution. 2. I had to xfail an
-aggressive-remat testcase because it isn't handling the use of RIP in the
constant-pool reading instruction. This specific test is easy to fix without
-aggressive-remat, which I intend to do next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27 04:16:01 +00:00
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const char *Modifier=NULL);
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2008-06-28 11:08:27 +00:00
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2006-02-18 00:15:05 +00:00
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void printPICLabel(const MachineInstr *MI, unsigned Op);
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2008-06-28 11:09:32 +00:00
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2009-06-24 19:19:16 +00:00
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void PrintPICBaseSymbol() const;
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2005-07-01 22:44:09 +00:00
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bool runOnMachineFunction(MachineFunction &F);
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};
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} // end namespace llvm
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#endif
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