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Diffstat (limited to 'lib/Target/Mips/MipsFastISel.cpp')
-rw-r--r--lib/Target/Mips/MipsFastISel.cpp106
1 files changed, 74 insertions, 32 deletions
diff --git a/lib/Target/Mips/MipsFastISel.cpp b/lib/Target/Mips/MipsFastISel.cpp
index a44192f57aa0..c060cf06099d 100644
--- a/lib/Target/Mips/MipsFastISel.cpp
+++ b/lib/Target/Mips/MipsFastISel.cpp
@@ -1,4 +1,4 @@
-//===-- MipsFastISel.cpp - Mips FastISel implementation --------------------===//
+//===-- MipsFastISel.cpp - Mips FastISel implementation -------------------===//
//
// The LLVM Compiler Infrastructure
//
@@ -14,24 +14,62 @@
///
//===----------------------------------------------------------------------===//
+#include "MCTargetDesc/MipsABIInfo.h"
+#include "MCTargetDesc/MipsBaseInfo.h"
#include "MipsCCState.h"
#include "MipsInstrInfo.h"
#include "MipsISelLowering.h"
#include "MipsMachineFunction.h"
-#include "MipsRegisterInfo.h"
#include "MipsSubtarget.h"
#include "MipsTargetMachine.h"
+#include "llvm/ADT/APInt.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
+#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/FastISel.h"
#include "llvm/CodeGen/FunctionLoweringInfo.h"
+#include "llvm/CodeGen/ISDOpcodes.h"
+#include "llvm/CodeGen/MachineBasicBlock.h"
+#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
+#include "llvm/CodeGen/MachineMemOperand.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/CodeGen/MachineValueType.h"
+#include "llvm/CodeGen/ValueTypes.h"
+#include "llvm/IR/Attributes.h"
+#include "llvm/IR/CallingConv.h"
+#include "llvm/IR/Constant.h"
+#include "llvm/IR/Constants.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Function.h"
#include "llvm/IR/GetElementPtrTypeIterator.h"
-#include "llvm/IR/GlobalAlias.h"
+#include "llvm/IR/GlobalValue.h"
#include "llvm/IR/GlobalVariable.h"
+#include "llvm/IR/InstrTypes.h"
+#include "llvm/IR/Instruction.h"
+#include "llvm/IR/Instructions.h"
+#include "llvm/IR/IntrinsicInst.h"
+#include "llvm/IR/Operator.h"
+#include "llvm/IR/Type.h"
+#include "llvm/IR/User.h"
+#include "llvm/IR/Value.h"
+#include "llvm/MC/MCInstrDesc.h"
+#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSymbol.h"
-#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Target/TargetInstrInfo.h"
+#include "llvm/Target/TargetLowering.h"
+#include <algorithm>
+#include <cassert>
+#include <cstdint>
+#include <new>
#define DEBUG_TYPE "mips-fastisel"
@@ -47,35 +85,40 @@ class MipsFastISel final : public FastISel {
typedef enum { RegBase, FrameIndexBase } BaseKind;
private:
- BaseKind Kind;
+ BaseKind Kind = RegBase;
union {
unsigned Reg;
int FI;
} Base;
- int64_t Offset;
+ int64_t Offset = 0;
- const GlobalValue *GV;
+ const GlobalValue *GV = nullptr;
public:
// Innocuous defaults for our address.
- Address() : Kind(RegBase), Offset(0), GV(0) { Base.Reg = 0; }
+ Address() { Base.Reg = 0; }
+
void setKind(BaseKind K) { Kind = K; }
BaseKind getKind() const { return Kind; }
bool isRegBase() const { return Kind == RegBase; }
bool isFIBase() const { return Kind == FrameIndexBase; }
+
void setReg(unsigned Reg) {
assert(isRegBase() && "Invalid base register access!");
Base.Reg = Reg;
}
+
unsigned getReg() const {
assert(isRegBase() && "Invalid base register access!");
return Base.Reg;
}
+
void setFI(unsigned FI) {
assert(isFIBase() && "Invalid base frame index access!");
Base.FI = FI;
}
+
unsigned getFI() const {
assert(isFIBase() && "Invalid base frame index access!");
return Base.FI;
@@ -165,14 +208,17 @@ private:
MachineInstrBuilder emitInst(unsigned Opc) {
return BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc));
}
+
MachineInstrBuilder emitInst(unsigned Opc, unsigned DstReg) {
return BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc, TII.get(Opc),
DstReg);
}
+
MachineInstrBuilder emitInstStore(unsigned Opc, unsigned SrcReg,
unsigned MemReg, int64_t MemOffset) {
return emitInst(Opc).addReg(SrcReg).addReg(MemReg).addImm(MemOffset);
}
+
MachineInstrBuilder emitInstLoad(unsigned Opc, unsigned DstReg,
unsigned MemReg, int64_t MemOffset) {
return emitInst(Opc, DstReg).addReg(MemReg).addImm(MemOffset);
@@ -198,6 +244,7 @@ private:
bool processCallArgs(CallLoweringInfo &CLI, SmallVectorImpl<MVT> &ArgVTs,
unsigned &NumBytes);
bool finishCall(CallLoweringInfo &CLI, MVT RetVT, unsigned NumBytes);
+
const MipsABIInfo &getABI() const {
return static_cast<const MipsTargetMachine &>(TM).getABI();
}
@@ -220,7 +267,8 @@ public:
#include "MipsGenFastISel.inc"
};
-} // end anonymous namespace.
+
+} // end anonymous namespace
static bool CC_Mips(unsigned ValNo, MVT ValVT, MVT LocVT,
CCValAssign::LocInfo LocInfo, ISD::ArgFlagsTy ArgFlags,
@@ -414,7 +462,6 @@ unsigned MipsFastISel::fastMaterializeConstant(const Constant *C) {
}
bool MipsFastISel::computeAddress(const Value *Obj, Address &Addr) {
-
const User *U = nullptr;
unsigned Opcode = Instruction::UserOp1;
if (const Instruction *I = dyn_cast<Instruction>(Obj)) {
@@ -432,10 +479,9 @@ bool MipsFastISel::computeAddress(const Value *Obj, Address &Addr) {
switch (Opcode) {
default:
break;
- case Instruction::BitCast: {
+ case Instruction::BitCast:
// Look through bitcasts.
return computeAddress(U->getOperand(0), Addr);
- }
case Instruction::GetElementPtr: {
Address SavedAddr = Addr;
int64_t TmpOffset = Addr.getOffset();
@@ -451,7 +497,7 @@ bool MipsFastISel::computeAddress(const Value *Obj, Address &Addr) {
TmpOffset += SL->getElementOffset(Idx);
} else {
uint64_t S = DL.getTypeAllocSize(GTI.getIndexedType());
- for (;;) {
+ while (true) {
if (const ConstantInt *CI = dyn_cast<ConstantInt>(Op)) {
// Constant-offset addressing.
TmpOffset += CI->getSExtValue() * S;
@@ -613,14 +659,12 @@ bool MipsFastISel::emitCmp(unsigned ResultReg, const CmpInst *CI) {
emitInst(Mips::SLTu, ResultReg).addReg(Mips::ZERO).addReg(TempReg);
break;
}
- case CmpInst::ICMP_UGT: {
+ case CmpInst::ICMP_UGT:
emitInst(Mips::SLTu, ResultReg).addReg(RightReg).addReg(LeftReg);
break;
- }
- case CmpInst::ICMP_ULT: {
+ case CmpInst::ICMP_ULT:
emitInst(Mips::SLTu, ResultReg).addReg(LeftReg).addReg(RightReg);
break;
- }
case CmpInst::ICMP_UGE: {
unsigned TempReg = createResultReg(&Mips::GPR32RegClass);
emitInst(Mips::SLTu, TempReg).addReg(LeftReg).addReg(RightReg);
@@ -633,14 +677,12 @@ bool MipsFastISel::emitCmp(unsigned ResultReg, const CmpInst *CI) {
emitInst(Mips::XORi, ResultReg).addReg(TempReg).addImm(1);
break;
}
- case CmpInst::ICMP_SGT: {
+ case CmpInst::ICMP_SGT:
emitInst(Mips::SLT, ResultReg).addReg(RightReg).addReg(LeftReg);
break;
- }
- case CmpInst::ICMP_SLT: {
+ case CmpInst::ICMP_SLT:
emitInst(Mips::SLT, ResultReg).addReg(LeftReg).addReg(RightReg);
break;
- }
case CmpInst::ICMP_SGE: {
unsigned TempReg = createResultReg(&Mips::GPR32RegClass);
emitInst(Mips::SLT, TempReg).addReg(LeftReg).addReg(RightReg);
@@ -709,6 +751,7 @@ bool MipsFastISel::emitCmp(unsigned ResultReg, const CmpInst *CI) {
}
return true;
}
+
bool MipsFastISel::emitLoad(MVT VT, unsigned &ResultReg, Address &Addr,
unsigned Alignment) {
//
@@ -716,35 +759,30 @@ bool MipsFastISel::emitLoad(MVT VT, unsigned &ResultReg, Address &Addr,
//
unsigned Opc;
switch (VT.SimpleTy) {
- case MVT::i32: {
+ case MVT::i32:
ResultReg = createResultReg(&Mips::GPR32RegClass);
Opc = Mips::LW;
break;
- }
- case MVT::i16: {
+ case MVT::i16:
ResultReg = createResultReg(&Mips::GPR32RegClass);
Opc = Mips::LHu;
break;
- }
- case MVT::i8: {
+ case MVT::i8:
ResultReg = createResultReg(&Mips::GPR32RegClass);
Opc = Mips::LBu;
break;
- }
- case MVT::f32: {
+ case MVT::f32:
if (UnsupportedFPMode)
return false;
ResultReg = createResultReg(&Mips::FGR32RegClass);
Opc = Mips::LWC1;
break;
- }
- case MVT::f64: {
+ case MVT::f64:
if (UnsupportedFPMode)
return false;
ResultReg = createResultReg(&Mips::AFGR64RegClass);
Opc = Mips::LDC1;
break;
- }
default:
return false;
}
@@ -1730,6 +1768,7 @@ bool MipsFastISel::selectTrunc(const Instruction *I) {
updateValueMap(I, SrcReg);
return true;
}
+
bool MipsFastISel::selectIntExt(const Instruction *I) {
Type *DestTy = I->getType();
Value *Src = I->getOperand(0);
@@ -1757,6 +1796,7 @@ bool MipsFastISel::selectIntExt(const Instruction *I) {
updateValueMap(I, ResultReg);
return true;
}
+
bool MipsFastISel::emitIntSExt32r1(MVT SrcVT, unsigned SrcReg, MVT DestVT,
unsigned DestReg) {
unsigned ShiftAmt;
@@ -2074,8 +2114,10 @@ unsigned MipsFastISel::fastEmitInst_rr(unsigned MachineInstOpcode,
}
namespace llvm {
+
FastISel *Mips::createFastISel(FunctionLoweringInfo &funcInfo,
const TargetLibraryInfo *libInfo) {
return new MipsFastISel(funcInfo, libInfo);
}
-}
+
+} // end namespace llvm
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-11 08:35:12 +0000