maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/llvm/lib/CodeGen/GlobalISel/MachineIRBuilder.cpp

400 lines
14 KiB
C++
Raw Normal View History

[GlobalISel] Add a MachineIRBuilder class. Helper class to build machine instrs. This is a higher abstraction than MachineInstrBuilder. llvm-svn: 260547
2016-02-12 01:44:59 +08:00
//===-- llvm/CodeGen/GlobalISel/MachineIRBuilder.cpp - MIBuilder--*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// This file implements the MachineIRBuidler class.
//===----------------------------------------------------------------------===//
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/MachineInstr.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
#include "llvm/CodeGen/MachineRegisterInfo.h"
[GlobalISel] Add a MachineIRBuilder class. Helper class to build machine instrs. This is a higher abstraction than MachineInstrBuilder. llvm-svn: 260547
2016-02-12 01:44:59 +08:00
#include "llvm/Target/TargetInstrInfo.h"
[Target] Add a helper function to check if an opcode is invalid after isel. llvm-svn: 260590
2016-02-12 05:16:56 +08:00
#include "llvm/Target/TargetOpcodes.h"
[GlobalISel] Add a MachineIRBuilder class. Helper class to build machine instrs. This is a higher abstraction than MachineInstrBuilder. llvm-svn: 260547
2016-02-12 01:44:59 +08:00
#include "llvm/Target/TargetSubtargetInfo.h"
using namespace llvm;
[MachineIRBuilder] Rename the setter of MF for consistency with the getter. llvm-svn: 263262
2016-03-12 01:27:51 +08:00
void MachineIRBuilder::setMF(MachineFunction &MF) {
[GlobalISel] Add a MachineIRBuilder class. Helper class to build machine instrs. This is a higher abstraction than MachineInstrBuilder. llvm-svn: 260547
2016-02-12 01:44:59 +08:00
this->MF = &MF;
this->MBB = nullptr;
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
this->MRI = &MF.getRegInfo();
[GlobalISel] Add a MachineIRBuilder class. Helper class to build machine instrs. This is a higher abstraction than MachineInstrBuilder. llvm-svn: 260547
2016-02-12 01:44:59 +08:00
this->TII = MF.getSubtarget().getInstrInfo();
this->DL = DebugLoc();
this->MI = nullptr;
GlobalISel: perform multi-step legalization llvm-svn: 279758
2016-08-26 01:37:32 +08:00
this->InsertedInstr = nullptr;
[GlobalISel] Add a MachineIRBuilder class. Helper class to build machine instrs. This is a higher abstraction than MachineInstrBuilder. llvm-svn: 260547
2016-02-12 01:44:59 +08:00
}
[MachineIRBuilder] Rename the setter for MBB for consistency with the getter. llvm-svn: 263261
2016-03-12 01:27:47 +08:00
void MachineIRBuilder::setMBB(MachineBasicBlock &MBB, bool Beginning) {
[GlobalISel] Add a MachineIRBuilder class. Helper class to build machine instrs. This is a higher abstraction than MachineInstrBuilder. llvm-svn: 260547
2016-02-12 01:44:59 +08:00
this->MBB = &MBB;
Before = Beginning;
assert(&getMF() == MBB.getParent() &&
"Basic block is in a different function");
}
void MachineIRBuilder::setInstr(MachineInstr &MI, bool Before) {
assert(MI.getParent() && "Instruction is not part of a basic block");
[MachineIRBuilder] Rename the setter for MBB for consistency with the getter. llvm-svn: 263261
2016-03-12 01:27:47 +08:00
setMBB(*MI.getParent());
[GlobalISel] Add a MachineIRBuilder class. Helper class to build machine instrs. This is a higher abstraction than MachineInstrBuilder. llvm-svn: 260547
2016-02-12 01:44:59 +08:00
this->MI = &MI;
this->Before = Before;
}
MachineBasicBlock::iterator MachineIRBuilder::getInsertPt() {
if (MI) {
if (Before)
return MI;
if (!MI->getNextNode())
return getMBB().end();
return MI->getNextNode();
}
return Before ? getMBB().begin() : getMBB().end();
}
GlobalISel: perform multi-step legalization llvm-svn: 279758
2016-08-26 01:37:32 +08:00
void MachineIRBuilder::recordInsertions(
std::function<void(MachineInstr *)> Inserted) {
InsertedInstr = Inserted;
}
void MachineIRBuilder::stopRecordingInsertions() {
InsertedInstr = nullptr;
}
[MachineIRBuilder] Rework buildInstr API to maximize code reuse. llvm-svn: 263264
2016-03-12 01:27:58 +08:00
//------------------------------------------------------------------------------
// Build instruction variants.
//------------------------------------------------------------------------------
GlobalISel: give MachineInstrBuilder a uniform interface. NFC. Instead of an ad-hoc collection of "buildInstr" functions with varying numbers of registers, this uses variadic templates to provide for as many regs as needed! Also make IRtranslator use new "buildBr" function instead of some weird generic one that no-one else would really use. llvm-svn: 276762
2016-07-27 00:45:26 +08:00
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildInstr(unsigned Opcode) {
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
MachineInstrBuilder MIB = BuildMI(getMF(), DL, getTII().get(Opcode));
getMBB().insert(getInsertPt(), MIB);
GlobalISel: perform multi-step legalization llvm-svn: 279758
2016-08-26 01:37:32 +08:00
if (InsertedInstr)
InsertedInstr(MIB);
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
return MIB;
[GlobalISel] Teach the IRTranslator how to lower returns. llvm-svn: 260562
2016-02-12 02:53:28 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildFrameIndex(unsigned Res, int Idx) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Res).isPointer() && "invalid operand type");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_FRAME_INDEX)
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
.addDef(Res)
.addFrameIndex(Idx);
GlobalISel: implement alloca instruction llvm-svn: 276433
2016-07-23 00:59:52 +08:00
}
GlobalISel: implement legalization pass, with just one transformation. This adds the actual MachineLegalizeHelper to do the work and a trivial pass wrapper that legalizes all instructions in a MachineFunction. Currently the only transformation supported is splitting up a vector G_ADD into one acting on smaller vectors. llvm-svn: 276461
2016-07-23 04:03:43 +08:00
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildAdd(unsigned Res, unsigned Op0,
unsigned Op1) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert((MRI->getType(Res).isScalar() || MRI->getType(Res).isVector()) &&
"invalid operand type");
assert(MRI->getType(Res) == MRI->getType(Op0) &&
MRI->getType(Res) == MRI->getType(Op1) && "type mismatch");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_ADD)
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
.addDef(Res)
.addUse(Op0)
.addUse(Op1);
GlobalISel: implement legalization pass, with just one transformation. This adds the actual MachineLegalizeHelper to do the work and a trivial pass wrapper that legalizes all instructions in a MachineFunction. Currently the only transformation supported is splitting up a vector G_ADD into one acting on smaller vectors. llvm-svn: 276461
2016-07-23 04:03:43 +08:00
}
GlobalISel: translate GEP instructions. Unlike SDag, we use a separate G_GEP instruction (much simplified, only taking a single byte offset) to preserve the pointer type information through selection. llvm-svn: 281205
2016-09-12 19:20:22 +08:00
MachineInstrBuilder MachineIRBuilder::buildGEP(unsigned Res, unsigned Op0,
unsigned Op1) {
assert(MRI->getType(Res).isPointer() &&
MRI->getType(Res) == MRI->getType(Op0) && "type mismatch");
assert(MRI->getType(Op1).isScalar() && "invalid offset type");
return buildInstr(TargetOpcode::G_GEP)
.addDef(Res)
.addUse(Op0)
.addUse(Op1);
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildSub(unsigned Res, unsigned Op0,
unsigned Op1) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert((MRI->getType(Res).isScalar() || MRI->getType(Res).isVector()) &&
"invalid operand type");
assert(MRI->getType(Res) == MRI->getType(Op0) &&
MRI->getType(Res) == MRI->getType(Op1) && "type mismatch");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_SUB)
GlobalISel: legalize sdiv and srem operations. llvm-svn: 279842
2016-08-27 01:46:13 +08:00
.addDef(Res)
.addUse(Op0)
.addUse(Op1);
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildMul(unsigned Res, unsigned Op0,
unsigned Op1) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert((MRI->getType(Res).isScalar() || MRI->getType(Res).isVector()) &&
"invalid operand type");
assert(MRI->getType(Res) == MRI->getType(Op0) &&
MRI->getType(Res) == MRI->getType(Op1) && "type mismatch");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_MUL)
GlobalISel: legalize sdiv and srem operations. llvm-svn: 279842
2016-08-27 01:46:13 +08:00
.addDef(Res)
.addUse(Op0)
.addUse(Op1);
}
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
MachineInstrBuilder MachineIRBuilder::buildBr(MachineBasicBlock &Dest) {
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_BR).addMBB(&Dest);
GlobalISel: give MachineInstrBuilder a uniform interface. NFC. Instead of an ad-hoc collection of "buildInstr" functions with varying numbers of registers, this uses variadic templates to provide for as many regs as needed! Also make IRtranslator use new "buildBr" function instead of some weird generic one that no-one else would really use. llvm-svn: 276762
2016-07-27 00:45:26 +08:00
}
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
MachineInstrBuilder MachineIRBuilder::buildCopy(unsigned Res, unsigned Op) {
return buildInstr(TargetOpcode::COPY).addDef(Res).addUse(Op);
GlobalISel: add specialized buildCopy function to MachineInstrBuilder. NFC. llvm-svn: 276763
2016-07-27 00:45:30 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildConstant(unsigned Res, int64_t Val) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Res).isScalar() && "invalid operand type");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_CONSTANT).addDef(Res).addImm(Val);
GlobalISel: implement narrowing for G_ADD. llvm-svn: 277769
2016-08-05 04:54:13 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildFConstant(unsigned Res,
const ConstantFP &Val) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Res).isScalar() && "invalid operand type");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_FCONSTANT).addDef(Res).addFPImm(&Val);
GlobalISel: translate floating-point constants llvm-svn: 279311
2016-08-20 04:09:15 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildBrCond(unsigned Tst,
GlobalISel: add generic conditional branch. Just the basic equivalent to DAG's condbr for now, we'll get to things like br_cc when we start doing more legalization. llvm-svn: 277184
2016-07-30 01:58:00 +08:00
MachineBasicBlock &Dest) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Tst).isScalar() && "invalid operand type");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_BRCOND).addUse(Tst).addMBB(&Dest);
GlobalISel: add generic conditional branch. Just the basic equivalent to DAG's condbr for now, we'll get to things like br_cc when we start doing more legalization. llvm-svn: 277184
2016-07-30 01:58:00 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildLoad(unsigned Res, unsigned Addr,
MachineMemOperand &MMO) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Res).isValid() && "invalid operand type");
assert(MRI->getType(Addr).isPointer() && "invalid operand type");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_LOAD)
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
.addDef(Res)
.addUse(Addr)
.addMemOperand(&MMO);
GlobalISel: add generic load and store instructions. Pretty straightforward, the only oddity is the MachineMemOperand (which it's surprisingly difficult to share code for). llvm-svn: 276799
2016-07-27 04:23:26 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildStore(unsigned Val, unsigned Addr,
MachineMemOperand &MMO) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Val).isValid() && "invalid operand type");
assert(MRI->getType(Addr).isPointer() && "invalid operand type");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_STORE)
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
.addUse(Val)
.addUse(Addr)
.addMemOperand(&MMO);
GlobalISel: add generic load and store instructions. Pretty straightforward, the only oddity is the MachineMemOperand (which it's surprisingly difficult to share code for). llvm-svn: 276799
2016-07-27 04:23:26 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildUAdde(unsigned Res,
unsigned CarryOut,
unsigned Op0, unsigned Op1,
unsigned CarryIn) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Res).isScalar() && "invalid operand type");
assert(MRI->getType(Res) == MRI->getType(Op0) &&
MRI->getType(Res) == MRI->getType(Op1) && "type mismatch");
assert(MRI->getType(CarryOut).isScalar() && "invalid operand type");
assert(MRI->getType(CarryOut) == MRI->getType(CarryIn) && "type mismatch");
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_UADDE)
GlobalISel: implement narrowing for G_ADD. llvm-svn: 277769
2016-08-05 04:54:13 +08:00
.addDef(Res)
.addDef(CarryOut)
.addUse(Op0)
.addUse(Op1)
.addUse(CarryIn);
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildAnyExt(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, true);
return buildInstr(TargetOpcode::G_ANYEXT).addDef(Res).addUse(Op);
GlobalISel: add code to widen scalar G_ADD llvm-svn: 277747
2016-08-05 02:35:11 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildSExt(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, true);
return buildInstr(TargetOpcode::G_SEXT).addDef(Res).addUse(Op);
GlobalISel: legalize integer comparisons on AArch64. Next step is doing both legalizations at the same time! Marvel at GlobalISel's cunning. llvm-svn: 279566
2016-08-24 05:01:26 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildZExt(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, true);
return buildInstr(TargetOpcode::G_ZEXT).addDef(Res).addUse(Op);
GlobalISel: legalize integer comparisons on AArch64. Next step is doing both legalizations at the same time! Marvel at GlobalISel's cunning. llvm-svn: 279566
2016-08-24 05:01:26 +08:00
}
GlobalISel: translate GEP instructions. Unlike SDag, we use a separate G_GEP instruction (much simplified, only taking a single byte offset) to preserve the pointer type information through selection. llvm-svn: 281205
2016-09-12 19:20:22 +08:00
MachineInstrBuilder MachineIRBuilder::buildSExtOrTrunc(unsigned Res,
unsigned Op) {
unsigned Opcode = TargetOpcode::COPY;
if (MRI->getType(Res).getSizeInBits() > MRI->getType(Op).getSizeInBits())
Opcode = TargetOpcode::G_SEXT;
else if (MRI->getType(Res).getSizeInBits() < MRI->getType(Op).getSizeInBits())
Opcode = TargetOpcode::G_TRUNC;
return buildInstr(Opcode).addDef(Res).addUse(Op);
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildExtract(ArrayRef<unsigned> Results,
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
ArrayRef<uint64_t> Indices,
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
unsigned Src) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
#ifndef NDEBUG
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
assert(Results.size() == Indices.size() && "inconsistent number of regs");
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
assert(!Results.empty() && "invalid trivial extract");
GlobalISel: combine extracts & sequences created for legalization Legalization ends up creating many G_SEQUENCE/G_EXTRACT pairs which leads to inefficient codegen (even for -O0), so add a quick pass over the function to remove them again. llvm-svn: 280155
2016-08-31 04:51:25 +08:00
assert(std::is_sorted(Indices.begin(), Indices.end()) &&
"extract offsets must be in ascending order");
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Src).isValid() && "invalid operand type");
for (auto Res : Results)
assert(MRI->getType(Res).isValid() && "invalid operand type");
#endif
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
auto MIB = BuildMI(getMF(), DL, getTII().get(TargetOpcode::G_EXTRACT));
GlobalISel: implement legalization pass, with just one transformation. This adds the actual MachineLegalizeHelper to do the work and a trivial pass wrapper that legalizes all instructions in a MachineFunction. Currently the only transformation supported is splitting up a vector G_ADD into one acting on smaller vectors. llvm-svn: 276461
2016-07-23 04:03:43 +08:00
for (auto Res : Results)
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
MIB.addDef(Res);
GlobalISel: implement legalization pass, with just one transformation. This adds the actual MachineLegalizeHelper to do the work and a trivial pass wrapper that legalizes all instructions in a MachineFunction. Currently the only transformation supported is splitting up a vector G_ADD into one acting on smaller vectors. llvm-svn: 276461
2016-07-23 04:03:43 +08:00
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
MIB.addUse(Src);
GlobalISel: implement legalization pass, with just one transformation. This adds the actual MachineLegalizeHelper to do the work and a trivial pass wrapper that legalizes all instructions in a MachineFunction. Currently the only transformation supported is splitting up a vector G_ADD into one acting on smaller vectors. llvm-svn: 276461
2016-07-23 04:03:43 +08:00
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
for (auto Idx : Indices)
GlobalISel: implement legalization pass, with just one transformation. This adds the actual MachineLegalizeHelper to do the work and a trivial pass wrapper that legalizes all instructions in a MachineFunction. Currently the only transformation supported is splitting up a vector G_ADD into one acting on smaller vectors. llvm-svn: 276461
2016-07-23 04:03:43 +08:00
MIB.addImm(Idx);
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
getMBB().insert(getInsertPt(), MIB);
GlobalISel: perform multi-step legalization llvm-svn: 279758
2016-08-26 01:37:32 +08:00
if (InsertedInstr)
InsertedInstr(MIB);
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
return MIB;
GlobalISel: implement legalization pass, with just one transformation. This adds the actual MachineLegalizeHelper to do the work and a trivial pass wrapper that legalizes all instructions in a MachineFunction. Currently the only transformation supported is splitting up a vector G_ADD into one acting on smaller vectors. llvm-svn: 276461
2016-07-23 04:03:43 +08:00
}
GlobalISel: support overflow arithmetic intrinsics. Unsigned addition and subtraction can reuse the instructions created to legalize large width operations (i.e. both produce and consume a carry flag). Signed operations and multiplies get a dedicated op-with-overflow instruction. Once this is produced the two values are combined into a struct register (which will almost always be merged with a corresponding G_EXTRACT as part of legalization). llvm-svn: 279278
2016-08-20 01:17:06 +08:00
MachineInstrBuilder
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineIRBuilder::buildSequence(unsigned Res,
GlobalISel: support overflow arithmetic intrinsics. Unsigned addition and subtraction can reuse the instructions created to legalize large width operations (i.e. both produce and consume a carry flag). Signed operations and multiplies get a dedicated op-with-overflow instruction. Once this is produced the two values are combined into a struct register (which will almost always be merged with a corresponding G_EXTRACT as part of legalization). llvm-svn: 279278
2016-08-20 01:17:06 +08:00
ArrayRef<unsigned> Ops,
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
ArrayRef<unsigned> Indices) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
#ifndef NDEBUG
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
assert(Ops.size() == Indices.size() && "incompatible args");
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
assert(!Ops.empty() && "invalid trivial sequence");
GlobalISel: combine extracts & sequences created for legalization Legalization ends up creating many G_SEQUENCE/G_EXTRACT pairs which leads to inefficient codegen (even for -O0), so add a quick pass over the function to remove them again. llvm-svn: 280155
2016-08-31 04:51:25 +08:00
assert(std::is_sorted(Indices.begin(), Indices.end()) &&
"sequence offsets must be in ascending order");
GlobalISel: support overflow arithmetic intrinsics. Unsigned addition and subtraction can reuse the instructions created to legalize large width operations (i.e. both produce and consume a carry flag). Signed operations and multiplies get a dedicated op-with-overflow instruction. Once this is produced the two values are combined into a struct register (which will almost always be merged with a corresponding G_EXTRACT as part of legalization). llvm-svn: 279278
2016-08-20 01:17:06 +08:00
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
assert(MRI->getType(Res).isValid() && "invalid operand type");
for (auto Op : Ops)
assert(MRI->getType(Op).isValid() && "invalid operand type");
#endif
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MIB = buildInstr(TargetOpcode::G_SEQUENCE);
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
MIB.addDef(Res);
GlobalISel: support overflow arithmetic intrinsics. Unsigned addition and subtraction can reuse the instructions created to legalize large width operations (i.e. both produce and consume a carry flag). Signed operations and multiplies get a dedicated op-with-overflow instruction. Once this is produced the two values are combined into a struct register (which will almost always be merged with a corresponding G_EXTRACT as part of legalization). llvm-svn: 279278
2016-08-20 01:17:06 +08:00
for (unsigned i = 0; i < Ops.size(); ++i) {
MIB.addUse(Ops[i]);
GlobalISel: improve representation of G_SEQUENCE and G_EXTRACT First, make sure all types involved are represented, rather than being implicit from the register width. Second, canonicalize all types to scalar. These operations just act in bits and don't care about vectors. Also standardize spelling of Indices in the MachineIRBuilder (NFC here). llvm-svn: 279294
2016-08-20 02:32:14 +08:00
MIB.addImm(Indices[i]);
GlobalISel: support overflow arithmetic intrinsics. Unsigned addition and subtraction can reuse the instructions created to legalize large width operations (i.e. both produce and consume a carry flag). Signed operations and multiplies get a dedicated op-with-overflow instruction. Once this is produced the two values are combined into a struct register (which will almost always be merged with a corresponding G_EXTRACT as part of legalization). llvm-svn: 279278
2016-08-20 01:17:06 +08:00
}
CodeGen: improve MachineInstrBuilder & MachineIRBuilder interface For MachineInstrBuilder, having to manually use RegState::Define is ugly and makes register definitions clunkier than they need to be, so this adds two convenience functions: addDef and addUse. For MachineIRBuilder, we want to avoid BuildMI's first-reg-is-def rule because it's hidden away and causes bugs. So this patch switches buildInstr to returning a MachineInstrBuilder and adding *all* operands via addDef/addUse. NFC. llvm-svn: 277176
2016-07-30 01:43:52 +08:00
return MIB;
GlobalISel: implement legalization pass, with just one transformation. This adds the actual MachineLegalizeHelper to do the work and a trivial pass wrapper that legalizes all instructions in a MachineFunction. Currently the only transformation supported is splitting up a vector G_ADD into one acting on smaller vectors. llvm-svn: 276461
2016-07-23 04:03:43 +08:00
}
GlobalISel: support translation of intrinsic calls. These come in two variants for now: G_INTRINSIC and G_INTRINSIC_W_SIDE_EFFECTS. We may decide to split the latter up with finer-grained restrictions later, if necessary. llvm-svn: 277224
2016-07-30 06:32:36 +08:00
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildIntrinsic(Intrinsic::ID ID,
GlobalISel: support translation of intrinsic calls. These come in two variants for now: G_INTRINSIC and G_INTRINSIC_W_SIDE_EFFECTS. We may decide to split the latter up with finer-grained restrictions later, if necessary. llvm-svn: 277224
2016-07-30 06:32:36 +08:00
unsigned Res,
bool HasSideEffects) {
auto MIB =
buildInstr(HasSideEffects ? TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
: TargetOpcode::G_INTRINSIC);
GlobalISel: support translation of intrinsic calls. These come in two variants for now: G_INTRINSIC and G_INTRINSIC_W_SIDE_EFFECTS. We may decide to split the latter up with finer-grained restrictions later, if necessary. llvm-svn: 277224
2016-07-30 06:32:36 +08:00
if (Res)
MIB.addDef(Res);
MIB.addIntrinsicID(ID);
return MIB;
}
GlobalISel: add code to widen scalar G_ADD llvm-svn: 277747
2016-08-05 02:35:11 +08:00
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildTrunc(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, false);
return buildInstr(TargetOpcode::G_TRUNC).addDef(Res).addUse(Op);
GlobalISel: add code to widen scalar G_ADD llvm-svn: 277747
2016-08-05 02:35:11 +08:00
}
GlobalISel: support irtranslation of icmp instructions. llvm-svn: 278969
2016-08-18 04:25:25 +08:00
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildFPTrunc(unsigned Res, unsigned Op) {
validateTruncExt(Res, Op, false);
return buildInstr(TargetOpcode::G_FPTRUNC).addDef(Res).addUse(Op);
GlobalISel: support legalization of G_FCONSTANTs llvm-svn: 279341
2016-08-20 06:40:08 +08:00
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildICmp(CmpInst::Predicate Pred,
GlobalISel: support irtranslation of icmp instructions. llvm-svn: 278969
2016-08-18 04:25:25 +08:00
unsigned Res, unsigned Op0,
unsigned Op1) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
#ifndef NDEBUG
assert((MRI->getType(Op0).isScalar() || MRI->getType(Op0).isVector()) &&
"invalid operand type");
assert(MRI->getType(Op0) == MRI->getType(Op0) && "type mismatch");
assert(CmpInst::isIntPredicate(Pred) && "invalid predicate");
if (MRI->getType(Op0).isScalar())
assert(MRI->getType(Res).isScalar() && "type mismatch");
else
assert(MRI->getType(Res).isVector() &&
MRI->getType(Res).getNumElements() ==
MRI->getType(Op0).getNumElements() &&
"type mismatch");
#endif
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_ICMP)
GlobalISel: support irtranslation of icmp instructions. llvm-svn: 278969
2016-08-18 04:25:25 +08:00
.addDef(Res)
.addPredicate(Pred)
.addUse(Op0)
.addUse(Op1);
}
GlobalISel: support translating select instructions. llvm-svn: 279309
2016-08-20 04:09:07 +08:00
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildFCmp(CmpInst::Predicate Pred,
GlobalISel: translate floating-point comparisons llvm-svn: 279319
2016-08-20 04:48:16 +08:00
unsigned Res, unsigned Op0,
unsigned Op1) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
#ifndef NDEBUG
assert((MRI->getType(Op0).isScalar() || MRI->getType(Op0).isVector()) &&
"invalid operand type");
assert(MRI->getType(Op0) == MRI->getType(Op1) && "type mismatch");
assert(CmpInst::isFPPredicate(Pred) && "invalid predicate");
if (MRI->getType(Op0).isScalar())
assert(MRI->getType(Res).isScalar() && "type mismatch");
else
assert(MRI->getType(Res).isVector() &&
MRI->getType(Res).getNumElements() ==
MRI->getType(Op0).getNumElements() &&
"type mismatch");
#endif
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_FCMP)
GlobalISel: translate floating-point comparisons llvm-svn: 279319
2016-08-20 04:48:16 +08:00
.addDef(Res)
.addPredicate(Pred)
.addUse(Op0)
.addUse(Op1);
}
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
MachineInstrBuilder MachineIRBuilder::buildSelect(unsigned Res, unsigned Tst,
GlobalISel: support translating select instructions. llvm-svn: 279309
2016-08-20 04:09:07 +08:00
unsigned Op0, unsigned Op1) {
GlobalISel: fix comments and add assertions for valid instructions. llvm-svn: 281036
2016-09-09 19:46:58 +08:00
#ifndef NDEBUG
assert((MRI->getType(Res).isScalar() || MRI->getType(Res).isVector()) &&
"invalid operand type");
assert(MRI->getType(Res) == MRI->getType(Op0) &&
MRI->getType(Res) == MRI->getType(Op1) && "type mismatch");
if (MRI->getType(Res).isScalar())
assert(MRI->getType(Tst).isScalar() && "type mismatch");
else
assert(MRI->getType(Tst).isVector() &&
MRI->getType(Tst).getNumElements() ==
MRI->getType(Op0).getNumElements() &&
"type mismatch");
#endif
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
return buildInstr(TargetOpcode::G_SELECT)
GlobalISel: support translating select instructions. llvm-svn: 279309
2016-08-20 04:09:07 +08:00
.addDef(Res)
.addUse(Tst)
.addUse(Op0)
.addUse(Op1);
}
GlobalISel: make truncate/extend casts uniform They really should have both types represented, but early variants were created before MachineInstrs could have multiple types so they're rather ambiguous. llvm-svn: 279567
2016-08-24 05:01:33 +08:00
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
void MachineIRBuilder::validateTruncExt(unsigned Dst, unsigned Src,
bool IsExtend) {
#ifdef out validation code when asserts are disabled to remove unused variable warnings. llvm-svn: 279582
2016-08-24 06:14:15 +08:00
#ifndef NDEBUG
GlobalISel: move type information to MachineRegisterInfo. We want each register to have a canonical type, which means the best place to store this is in MachineRegisterInfo rather than on every MachineInstr that happens to use or define that register. Most changes following from this are pretty simple (you need an MRI anyway if you're going to be doing any transformations, so just check the type there). But legalization doesn't really want to check redundant operands (when, for example, a G_ADD only ever has one type) so I've made use of MCInstrDesc's operand type field to encode these constraints and limit legalization's work. As an added bonus, more validation is possible, both in MachineVerifier and MachineIRBuilder (coming soon). llvm-svn: 281035
2016-09-09 19:46:34 +08:00
LLT SrcTy = MRI->getType(Src);
LLT DstTy = MRI->getType(Dst);
GlobalISel: make truncate/extend casts uniform They really should have both types represented, but early variants were created before MachineInstrs could have multiple types so they're rather ambiguous. llvm-svn: 279567
2016-08-24 05:01:33 +08:00
if (DstTy.isVector()) {
assert(SrcTy.isVector() && "mismatched cast between vecot and non-vector");
assert(SrcTy.getNumElements() == DstTy.getNumElements() &&
"different number of elements in a trunc/ext");
} else
assert(DstTy.isScalar() && SrcTy.isScalar() && "invalid extend/trunc");
if (IsExtend)
assert(DstTy.getSizeInBits() > SrcTy.getSizeInBits() &&
"invalid narrowing extend");
else
assert(DstTy.getSizeInBits() < SrcTy.getSizeInBits() &&
"invalid widening trunc");
#ifdef out validation code when asserts are disabled to remove unused variable warnings. llvm-svn: 279582
2016-08-24 06:14:15 +08:00
#endif
GlobalISel: make truncate/extend casts uniform They really should have both types represented, but early variants were created before MachineInstrs could have multiple types so they're rather ambiguous. llvm-svn: 279567
2016-08-24 05:01:33 +08:00
}