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Support alloca instructions.

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Support copying floating-point constants to registers.
Add assertion to visitCallInst to abort if we hit a NULL calledFunction, for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14216 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Brian Gaeke 2004-06-18 05:19:16 +00:00
parent a8abee2136
commit c93a75223d
4 changed files with 128 additions and 0 deletions
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32
lib/Target/Sparc/InstSelectSimple.cpp
View File

@ -20,6 +20,7 @@
#include "llvm/Constants.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/Target/TargetMachine.h"
@ -77,6 +78,7 @@ namespace {
void visitStoreInst(StoreInst &I);
void visitPHINode(PHINode &I) {} // PHI nodes handled by second pass
void visitGetElementPtrInst(GetElementPtrInst &I);
void visitAllocaInst(AllocaInst &I);
@ -269,6 +271,15 @@ void V8ISel::copyConstantToRegister(MachineBasicBlock *MBB,
assert (0 && "Can't copy this kind of constant into register yet");
return;
}
} else if (ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
// We need to spill the constant to memory...
MachineConstantPool *CP = F->getConstantPool();
unsigned CPI = CP->getConstantPoolIndex(CFP);
const Type *Ty = CFP->getType();
assert(Ty == Type::FloatTy || Ty == Type::DoubleTy && "Unknown FP type!");
unsigned LoadOpcode = Ty == Type::FloatTy ? V8::LDFmr : V8::LDDFmr;
BuildMI (*MBB, IP, LoadOpcode, 2, R).addConstantPoolIndex (CPI).addSImm (0);
} else if (isa<ConstantPointerNull>(C)) {
// Copy zero (null pointer) to the register.
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (V8::G0).addImm (0);
@ -555,6 +566,7 @@ void V8ISel::visitCallInst(CallInst &I) {
.addReg (ArgReg);
}
assert (I.getCalledFunction() && "don't know what to do with NULL function!");
BuildMI (BB, V8::CALL, 1).addGlobalAddress(I.getCalledFunction (), true);
if (I.getType () == Type::VoidTy)
return;
@ -865,7 +877,27 @@ void V8ISel::visitSetCondInst(Instruction &I) {
.addMBB (copy0MBB).addReg (TrueValue).addMBB (copy1MBB);
}
void V8ISel::visitAllocaInst(AllocaInst &I) {
// Find the data size of the alloca inst's getAllocatedType.
const Type *Ty = I.getAllocatedType();
unsigned TySize = TM.getTargetData().getTypeSize(Ty);
unsigned ArraySizeReg = getReg (I.getArraySize ());
unsigned TySizeReg = getReg (ConstantUInt::get (Type::UIntTy, TySize));
unsigned TmpReg1 = makeAnotherReg (Type::UIntTy);
unsigned TmpReg2 = makeAnotherReg (Type::UIntTy);
unsigned StackAdjReg = makeAnotherReg (Type::UIntTy);
unsigned DestReg = getReg (I);
// StackAdjReg = (ArraySize * TySize) rounded up to nearest doubleword boundary
BuildMI (BB, V8::UMULrr, 2, TmpReg1).addReg (ArraySizeReg).addReg (TySizeReg);
// Round up TmpReg1 to nearest doubleword boundary:
BuildMI (BB, V8::ADDri, 2, TmpReg2).addReg (TmpReg1).addSImm (7);
BuildMI (BB, V8::ANDri, 2, StackAdjReg).addReg (TmpReg2).addSImm (-8);
// Adjust stack, push pointer past trap frame space, put result in DestReg
BuildMI (BB, V8::SUBrr, 2, V8::SP).addReg (V8::SP).addReg (StackAdjReg);
BuildMI (BB, V8::ADDri, 2, DestReg).addReg (V8::SP).addSImm (96);
}
/// LowerUnknownIntrinsicFunctionCalls - This performs a prepass over the
/// function, lowering any calls to unknown intrinsic functions into the

32
lib/Target/Sparc/SparcV8ISelSimple.cpp
View File

@ -20,6 +20,7 @@
#include "llvm/Constants.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/Target/TargetMachine.h"
@ -77,6 +78,7 @@ namespace {
void visitStoreInst(StoreInst &I);
void visitPHINode(PHINode &I) {} // PHI nodes handled by second pass
void visitGetElementPtrInst(GetElementPtrInst &I);
void visitAllocaInst(AllocaInst &I);
@ -269,6 +271,15 @@ void V8ISel::copyConstantToRegister(MachineBasicBlock *MBB,
assert (0 && "Can't copy this kind of constant into register yet");
return;
}
} else if (ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
// We need to spill the constant to memory...
MachineConstantPool *CP = F->getConstantPool();
unsigned CPI = CP->getConstantPoolIndex(CFP);
const Type *Ty = CFP->getType();
assert(Ty == Type::FloatTy || Ty == Type::DoubleTy && "Unknown FP type!");
unsigned LoadOpcode = Ty == Type::FloatTy ? V8::LDFmr : V8::LDDFmr;
BuildMI (*MBB, IP, LoadOpcode, 2, R).addConstantPoolIndex (CPI).addSImm (0);
} else if (isa<ConstantPointerNull>(C)) {
// Copy zero (null pointer) to the register.
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (V8::G0).addImm (0);
@ -555,6 +566,7 @@ void V8ISel::visitCallInst(CallInst &I) {
.addReg (ArgReg);
}
assert (I.getCalledFunction() && "don't know what to do with NULL function!");
BuildMI (BB, V8::CALL, 1).addGlobalAddress(I.getCalledFunction (), true);
if (I.getType () == Type::VoidTy)
return;
@ -865,7 +877,27 @@ void V8ISel::visitSetCondInst(Instruction &I) {
.addMBB (copy0MBB).addReg (TrueValue).addMBB (copy1MBB);
}
void V8ISel::visitAllocaInst(AllocaInst &I) {
// Find the data size of the alloca inst's getAllocatedType.
const Type *Ty = I.getAllocatedType();
unsigned TySize = TM.getTargetData().getTypeSize(Ty);
unsigned ArraySizeReg = getReg (I.getArraySize ());
unsigned TySizeReg = getReg (ConstantUInt::get (Type::UIntTy, TySize));
unsigned TmpReg1 = makeAnotherReg (Type::UIntTy);
unsigned TmpReg2 = makeAnotherReg (Type::UIntTy);
unsigned StackAdjReg = makeAnotherReg (Type::UIntTy);
unsigned DestReg = getReg (I);
// StackAdjReg = (ArraySize * TySize) rounded up to nearest doubleword boundary
BuildMI (BB, V8::UMULrr, 2, TmpReg1).addReg (ArraySizeReg).addReg (TySizeReg);
// Round up TmpReg1 to nearest doubleword boundary:
BuildMI (BB, V8::ADDri, 2, TmpReg2).addReg (TmpReg1).addSImm (7);
BuildMI (BB, V8::ANDri, 2, StackAdjReg).addReg (TmpReg2).addSImm (-8);
// Adjust stack, push pointer past trap frame space, put result in DestReg
BuildMI (BB, V8::SUBrr, 2, V8::SP).addReg (V8::SP).addReg (StackAdjReg);
BuildMI (BB, V8::ADDri, 2, DestReg).addReg (V8::SP).addSImm (96);
}
/// LowerUnknownIntrinsicFunctionCalls - This performs a prepass over the
/// function, lowering any calls to unknown intrinsic functions into the

32
lib/Target/SparcV8/InstSelectSimple.cpp
View File

@ -20,6 +20,7 @@
#include "llvm/Constants.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/Target/TargetMachine.h"
@ -77,6 +78,7 @@ namespace {
void visitStoreInst(StoreInst &I);
void visitPHINode(PHINode &I) {} // PHI nodes handled by second pass
void visitGetElementPtrInst(GetElementPtrInst &I);
void visitAllocaInst(AllocaInst &I);
@ -269,6 +271,15 @@ void V8ISel::copyConstantToRegister(MachineBasicBlock *MBB,
assert (0 && "Can't copy this kind of constant into register yet");
return;
}
} else if (ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
// We need to spill the constant to memory...
MachineConstantPool *CP = F->getConstantPool();
unsigned CPI = CP->getConstantPoolIndex(CFP);
const Type *Ty = CFP->getType();
assert(Ty == Type::FloatTy || Ty == Type::DoubleTy && "Unknown FP type!");
unsigned LoadOpcode = Ty == Type::FloatTy ? V8::LDFmr : V8::LDDFmr;
BuildMI (*MBB, IP, LoadOpcode, 2, R).addConstantPoolIndex (CPI).addSImm (0);
} else if (isa<ConstantPointerNull>(C)) {
// Copy zero (null pointer) to the register.
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (V8::G0).addImm (0);
@ -555,6 +566,7 @@ void V8ISel::visitCallInst(CallInst &I) {
.addReg (ArgReg);
}
assert (I.getCalledFunction() && "don't know what to do with NULL function!");
BuildMI (BB, V8::CALL, 1).addGlobalAddress(I.getCalledFunction (), true);
if (I.getType () == Type::VoidTy)
return;
@ -865,7 +877,27 @@ void V8ISel::visitSetCondInst(Instruction &I) {
.addMBB (copy0MBB).addReg (TrueValue).addMBB (copy1MBB);
}
void V8ISel::visitAllocaInst(AllocaInst &I) {
// Find the data size of the alloca inst's getAllocatedType.
const Type *Ty = I.getAllocatedType();
unsigned TySize = TM.getTargetData().getTypeSize(Ty);
unsigned ArraySizeReg = getReg (I.getArraySize ());
unsigned TySizeReg = getReg (ConstantUInt::get (Type::UIntTy, TySize));
unsigned TmpReg1 = makeAnotherReg (Type::UIntTy);
unsigned TmpReg2 = makeAnotherReg (Type::UIntTy);
unsigned StackAdjReg = makeAnotherReg (Type::UIntTy);
unsigned DestReg = getReg (I);
// StackAdjReg = (ArraySize * TySize) rounded up to nearest doubleword boundary
BuildMI (BB, V8::UMULrr, 2, TmpReg1).addReg (ArraySizeReg).addReg (TySizeReg);
// Round up TmpReg1 to nearest doubleword boundary:
BuildMI (BB, V8::ADDri, 2, TmpReg2).addReg (TmpReg1).addSImm (7);
BuildMI (BB, V8::ANDri, 2, StackAdjReg).addReg (TmpReg2).addSImm (-8);
// Adjust stack, push pointer past trap frame space, put result in DestReg
BuildMI (BB, V8::SUBrr, 2, V8::SP).addReg (V8::SP).addReg (StackAdjReg);
BuildMI (BB, V8::ADDri, 2, DestReg).addReg (V8::SP).addSImm (96);
}
/// LowerUnknownIntrinsicFunctionCalls - This performs a prepass over the
/// function, lowering any calls to unknown intrinsic functions into the

32
lib/Target/SparcV8/SparcV8ISelSimple.cpp
View File

@ -20,6 +20,7 @@
#include "llvm/Constants.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFunction.h"
#include "llvm/CodeGen/SSARegMap.h"
#include "llvm/Target/TargetMachine.h"
@ -77,6 +78,7 @@ namespace {
void visitStoreInst(StoreInst &I);
void visitPHINode(PHINode &I) {} // PHI nodes handled by second pass
void visitGetElementPtrInst(GetElementPtrInst &I);
void visitAllocaInst(AllocaInst &I);
@ -269,6 +271,15 @@ void V8ISel::copyConstantToRegister(MachineBasicBlock *MBB,
assert (0 && "Can't copy this kind of constant into register yet");
return;
}
} else if (ConstantFP *CFP = dyn_cast<ConstantFP>(C)) {
// We need to spill the constant to memory...
MachineConstantPool *CP = F->getConstantPool();
unsigned CPI = CP->getConstantPoolIndex(CFP);
const Type *Ty = CFP->getType();
assert(Ty == Type::FloatTy || Ty == Type::DoubleTy && "Unknown FP type!");
unsigned LoadOpcode = Ty == Type::FloatTy ? V8::LDFmr : V8::LDDFmr;
BuildMI (*MBB, IP, LoadOpcode, 2, R).addConstantPoolIndex (CPI).addSImm (0);
} else if (isa<ConstantPointerNull>(C)) {
// Copy zero (null pointer) to the register.
BuildMI (*MBB, IP, V8::ORri, 2, R).addReg (V8::G0).addImm (0);
@ -555,6 +566,7 @@ void V8ISel::visitCallInst(CallInst &I) {
.addReg (ArgReg);
}
assert (I.getCalledFunction() && "don't know what to do with NULL function!");
BuildMI (BB, V8::CALL, 1).addGlobalAddress(I.getCalledFunction (), true);
if (I.getType () == Type::VoidTy)
return;
@ -865,7 +877,27 @@ void V8ISel::visitSetCondInst(Instruction &I) {
.addMBB (copy0MBB).addReg (TrueValue).addMBB (copy1MBB);
}
void V8ISel::visitAllocaInst(AllocaInst &I) {
// Find the data size of the alloca inst's getAllocatedType.
const Type *Ty = I.getAllocatedType();
unsigned TySize = TM.getTargetData().getTypeSize(Ty);
unsigned ArraySizeReg = getReg (I.getArraySize ());
unsigned TySizeReg = getReg (ConstantUInt::get (Type::UIntTy, TySize));
unsigned TmpReg1 = makeAnotherReg (Type::UIntTy);
unsigned TmpReg2 = makeAnotherReg (Type::UIntTy);
unsigned StackAdjReg = makeAnotherReg (Type::UIntTy);
unsigned DestReg = getReg (I);
// StackAdjReg = (ArraySize * TySize) rounded up to nearest doubleword boundary
BuildMI (BB, V8::UMULrr, 2, TmpReg1).addReg (ArraySizeReg).addReg (TySizeReg);
// Round up TmpReg1 to nearest doubleword boundary:
BuildMI (BB, V8::ADDri, 2, TmpReg2).addReg (TmpReg1).addSImm (7);
BuildMI (BB, V8::ANDri, 2, StackAdjReg).addReg (TmpReg2).addSImm (-8);
// Adjust stack, push pointer past trap frame space, put result in DestReg
BuildMI (BB, V8::SUBrr, 2, V8::SP).addReg (V8::SP).addReg (StackAdjReg);
BuildMI (BB, V8::ADDri, 2, DestReg).addReg (V8::SP).addSImm (96);
}
/// LowerUnknownIntrinsicFunctionCalls - This performs a prepass over the
/// function, lowering any calls to unknown intrinsic functions into the