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-rw-r--r--include/llvm/Target/TargetData.h181
-rw-r--r--lib/CodeGen/ELFWriter.cpp2
-rw-r--r--lib/CodeGen/MachOWriter.cpp2
-rw-r--r--lib/CodeGen/MachineFunction.cpp3
-rw-r--r--lib/CodeGen/SelectionDAG/LegalizeDAG.cpp13
-rw-r--r--lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp15
-rw-r--r--lib/ExecutionEngine/JIT/JIT.cpp2
-rw-r--r--lib/Target/Sparc/SparcAsmPrinter.cpp4
-rw-r--r--lib/Target/TargetData.cpp243
-rw-r--r--lib/Target/X86/X86TargetMachine.cpp4
-rw-r--r--lib/Transforms/Scalar/InstructionCombining.cpp24
-rw-r--r--lib/VMCore/ValueTypes.cpp13
12 files changed, 365 insertions, 141 deletions
diff --git a/include/llvm/Target/TargetData.h b/include/llvm/Target/TargetData.h
index aaae41c17c..42a40dd6c4 100644
--- a/include/llvm/Target/TargetData.h
+++ b/include/llvm/Target/TargetData.h
@@ -35,15 +35,28 @@ class GlobalVariable;
class TargetData : public ImmutablePass {
bool LittleEndian; // Defaults to false
- unsigned char BoolAlignment; // Defaults to 1 byte
- unsigned char ByteAlignment; // Defaults to 1 byte
- unsigned char ShortAlignment; // Defaults to 2 bytes
- unsigned char IntAlignment; // Defaults to 4 bytes
- unsigned char LongAlignment; // Defaults to 8 bytes
- unsigned char FloatAlignment; // Defaults to 4 bytes
- unsigned char DoubleAlignment; // Defaults to 8 bytes
- unsigned char PointerSize; // Defaults to 8 bytes
- unsigned char PointerAlignment; // Defaults to 8 bytes
+
+ // ABI alignments
+ unsigned char BoolABIAlignment; // Defaults to 1 byte
+ unsigned char ByteABIAlignment; // Defaults to 1 byte
+ unsigned char ShortABIAlignment; // Defaults to 2 bytes
+ unsigned char IntABIAlignment; // Defaults to 4 bytes
+ unsigned char LongABIAlignment; // Defaults to 8 bytes
+ unsigned char FloatABIAlignment; // Defaults to 4 bytes
+ unsigned char DoubleABIAlignment; // Defaults to 8 bytes
+ unsigned char PointerMemSize; // Defaults to 8 bytes
+ unsigned char PointerABIAlignment; // Defaults to 8 bytes
+
+ // Preferred stack/global type alignments
+ unsigned char BoolPrefAlignment; // Defaults to BoolABIAlignment
+ unsigned char BytePrefAlignment; // Defaults to ByteABIAlignment
+ unsigned char ShortPrefAlignment; // Defaults to ShortABIAlignment
+ unsigned char IntPrefAlignment; // Defaults to IntABIAlignment
+ unsigned char LongPrefAlignment; // Defaults to LongABIAlignment
+ unsigned char FloatPrefAlignment; // Defaults to FloatABIAlignment
+ unsigned char DoublePrefAlignment; // Defaults to DoubleABIAlignment
+ unsigned char PointerPrefAlignment; // Defaults to PointerABIAlignment
+ unsigned char AggMinPrefAlignment; // Defaults to 0 bytes
public:
/// Default ctor - This has to exist, because this is a pass, but it should
@@ -68,15 +81,24 @@ public:
TargetData(const TargetData &TD) :
ImmutablePass(),
LittleEndian(TD.isLittleEndian()),
- BoolAlignment(TD.getBoolAlignment()),
- ByteAlignment(TD.getByteAlignment()),
- ShortAlignment(TD.getShortAlignment()),
- IntAlignment(TD.getIntAlignment()),
- LongAlignment(TD.getLongAlignment()),
- FloatAlignment(TD.getFloatAlignment()),
- DoubleAlignment(TD.getDoubleAlignment()),
- PointerSize(TD.getPointerSize()),
- PointerAlignment(TD.getPointerAlignment()) {
+ BoolABIAlignment(TD.getBoolABIAlignment()),
+ ByteABIAlignment(TD.getByteABIAlignment()),
+ ShortABIAlignment(TD.getShortABIAlignment()),
+ IntABIAlignment(TD.getIntABIAlignment()),
+ LongABIAlignment(TD.getLongABIAlignment()),
+ FloatABIAlignment(TD.getFloatABIAlignment()),
+ DoubleABIAlignment(TD.getDoubleABIAlignment()),
+ PointerMemSize(TD.getPointerSize()),
+ PointerABIAlignment(TD.getPointerABIAlignment()),
+ BoolPrefAlignment(TD.getBoolPrefAlignment()),
+ BytePrefAlignment(TD.getBytePrefAlignment()),
+ ShortPrefAlignment(TD.getShortPrefAlignment()),
+ IntPrefAlignment(TD.getIntPrefAlignment()),
+ LongPrefAlignment(TD.getLongPrefAlignment()),
+ FloatPrefAlignment(TD.getFloatPrefAlignment()),
+ DoublePrefAlignment(TD.getDoublePrefAlignment()),
+ PointerPrefAlignment(TD.getPointerPrefAlignment()),
+ AggMinPrefAlignment(TD.getAggMinPrefAlignment()) {
}
~TargetData(); // Not virtual, do not subclass this class
@@ -86,10 +108,16 @@ public:
/// Parse a target data layout string, initializing the various TargetData
/// members along the way. A TargetData specification string looks like
/// "E-p:64:64-d:64-f:32-l:64-i:32-s:16-b:8-B:8" and specifies the
- /// target's endianess, the alignments of various data types and
- /// the size of pointers. The "-" is used as a separator and ":"
- /// separates a token from its argument. Alignment is indicated in bits
- /// and internally converted to the appropriate number of bytes.
+ /// target's endianess, the ABI alignments of various data types and
+ /// the size of pointers.
+ ///
+ /// "-" is used as a separator and ":" separates a token from its argument.
+ ///
+ /// Alignment is indicated in bits and internally converted to the
+ /// appropriate number of bytes.
+ ///
+ /// The preferred stack/global alignment specifications (":[prefalign]") are
+ /// optional and default to the ABI alignment.
///
/// Valid tokens:
/// <br>
@@ -97,20 +125,24 @@ public:
/// <em>e</em> specifies little endian architecture (4321) <br>
/// <em>p:[ptr size]:[ptr align]</em> specifies pointer size and alignment
/// [default = 64:64] <br>
- /// <em>d:[align]</em> specifies double floating point alignment
- /// [default = 64] <br>
- /// <em>f:[align]</em> specifies single floating point alignment
+ /// <em>d:[align]:[prefalign]</em> specifies double floating
+ /// point alignment [default = 64] <br>
+ /// <em>f:[align]:[prefalign]</em> specifies single floating
+ /// point alignment [default = 32] <br>
+ /// <em>l:[align]:[prefalign]:[globalign[</em> specifies long integer
+ /// alignment [default = 64] <br>
+ /// <em>i:[align]:[prefalign]</em> specifies integer alignment
/// [default = 32] <br>
- /// <em>l:[align]</em> specifies long integer alignment
- /// [default = 64] <br>
- /// <em>i:[align]</em> specifies integer alignment
- /// [default = 32] <br>
- /// <em>s:[align]</em> specifies short integer alignment
- /// [default = 16] <br>
- /// <em>b:[align]</em> specifies byte data type alignment
- /// [default = 8] <br>
- /// <em>B:[align]</em> specifies boolean data type alignment
- /// [default = 8] <br>
+ /// <em>s:[align]:[prefalign]</em> specifies short integer
+ /// alignment [default = 16] <br>
+ /// <em>b:[align]:[prefalign]</em> specifies byte data type
+ /// alignment [default = 8] <br>
+ /// <em>B:[align]:[prefalign]</em> specifies boolean data type
+ /// alignment [default = 8] <br>
+ /// <em>A:[prefalign]</em> specifies an aggregates' minimum alignment
+ /// on the stack and when emitted as a global. The default minimum aggregate
+ /// alignment defaults to 0, which causes the aggregate's "natural" internal
+ /// alignment calculated by llvm to be preferred.
///
/// All other token types are silently ignored.
void init(const std::string &TargetDescription);
@@ -120,17 +152,63 @@ public:
bool isLittleEndian() const { return LittleEndian; }
bool isBigEndian() const { return !LittleEndian; }
- /// Target alignment constraints
- unsigned char getBoolAlignment() const { return BoolAlignment; }
- unsigned char getByteAlignment() const { return ByteAlignment; }
- unsigned char getShortAlignment() const { return ShortAlignment; }
- unsigned char getIntAlignment() const { return IntAlignment; }
- unsigned char getLongAlignment() const { return LongAlignment; }
- unsigned char getFloatAlignment() const { return FloatAlignment; }
- unsigned char getDoubleAlignment() const { return DoubleAlignment; }
- unsigned char getPointerAlignment() const { return PointerAlignment; }
- unsigned char getPointerSize() const { return PointerSize; }
- unsigned char getPointerSizeInBits() const { return 8*PointerSize; }
+ /// Target boolean alignment
+ unsigned char getBoolABIAlignment() const { return BoolABIAlignment; }
+ /// Target byte alignment
+ unsigned char getByteABIAlignment() const { return ByteABIAlignment; }
+ /// Target short alignment
+ unsigned char getShortABIAlignment() const { return ShortABIAlignment; }
+ /// Target integer alignment
+ unsigned char getIntABIAlignment() const { return IntABIAlignment; }
+ /// Target long alignment
+ unsigned char getLongABIAlignment() const { return LongABIAlignment; }
+ /// Target single precision float alignment
+ unsigned char getFloatABIAlignment() const { return FloatABIAlignment; }
+ /// Target double precision float alignment
+ unsigned char getDoubleABIAlignment() const { return DoubleABIAlignment; }
+ /// Target pointer alignment
+ unsigned char getPointerABIAlignment() const { return PointerABIAlignment; }
+ /// Target pointer size
+ unsigned char getPointerSize() const { return PointerMemSize; }
+ /// Target pointer size, in bits
+ unsigned char getPointerSizeInBits() const { return 8*PointerMemSize; }
+
+ /// Return target's alignment for booleans on stack
+ unsigned char getBoolPrefAlignment() const {
+ return BoolPrefAlignment;
+ }
+ /// Return target's alignment for integers on stack
+ unsigned char getBytePrefAlignment() const {
+ return BytePrefAlignment;
+ }
+ /// Return target's alignment for shorts on stack
+ unsigned char getShortPrefAlignment() const {
+ return ShortPrefAlignment;
+ }
+ /// Return target's alignment for integers on stack
+ unsigned char getIntPrefAlignment() const {
+ return IntPrefAlignment;
+ }
+ /// Return target's alignment for longs on stack
+ unsigned char getLongPrefAlignment() const {
+ return LongPrefAlignment;
+ }
+ /// Return target's alignment for single precision floats on stack
+ unsigned char getFloatPrefAlignment() const {
+ return FloatPrefAlignment;
+ }
+ /// Return target's alignment for double preceision floats on stack
+ unsigned char getDoublePrefAlignment() const {
+ return DoublePrefAlignment;
+ }
+ /// Return target's alignment for stack-based pointers
+ unsigned char getPointerPrefAlignment() const {
+ return PointerPrefAlignment;
+ }
+ /// Return target's alignment for stack-based structures
+ unsigned char getAggMinPrefAlignment() const {
+ return AggMinPrefAlignment;
+ }
/// getStringRepresentation - Return the string representation of the
/// TargetData. This representation is in the same format accepted by the
@@ -142,10 +220,13 @@ public:
///
uint64_t getTypeSize(const Type *Ty) const;
- /// getTypeAlignment - Return the minimum required alignment for the specified
- /// type.
- ///
- unsigned char getTypeAlignment(const Type *Ty) const;
+ /// getTypeAlignmentABI - Return the minimum ABI-required alignment for the
+ /// specified type.
+ unsigned char getTypeAlignmentABI(const Type *Ty) const;
+
+ /// getTypeAlignmentPref - Return the preferred stack/global alignment for
+ /// the specified type.
+ unsigned char getTypeAlignmentPref(const Type *Ty) const;
/// getTypeAlignmentShift - Return the minimum required alignment for the
/// specified type, returned as log2 of the value (a shift amount).
diff --git a/lib/CodeGen/ELFWriter.cpp b/lib/CodeGen/ELFWriter.cpp
index 4f988070fd..3b9653740c 100644
--- a/lib/CodeGen/ELFWriter.cpp
+++ b/lib/CodeGen/ELFWriter.cpp
@@ -241,7 +241,7 @@ void ELFWriter::EmitGlobal(GlobalVariable *GV) {
}
const Type *GVType = (const Type*)GV->getType();
- unsigned Align = TM.getTargetData()->getTypeAlignment(GVType);
+ unsigned Align = TM.getTargetData()->getTypeAlignmentPref(GVType);
unsigned Size = TM.getTargetData()->getTypeSize(GVType);
// If this global has a zero initializer, it is part of the .bss or common
diff --git a/lib/CodeGen/MachOWriter.cpp b/lib/CodeGen/MachOWriter.cpp
index 64e11010b3..82dcf1861b 100644
--- a/lib/CodeGen/MachOWriter.cpp
+++ b/lib/CodeGen/MachOWriter.cpp
@@ -309,7 +309,7 @@ void MachOWriter::AddSymbolToSection(MachOSection *Sec, GlobalVariable *GV) {
unsigned Size = TM.getTargetData()->getTypeSize(Ty);
unsigned Align = GV->getAlignment();
if (Align == 0)
- Align = TM.getTargetData()->getTypeAlignment(Ty);
+ Align = TM.getTargetData()->getTypeAlignmentPref(Ty);
MachOSym Sym(GV, Mang->getValueName(GV), Sec->Index, TM);
diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index d26b3258fe..0cba1567e1 100644
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -123,7 +123,8 @@ MachineFunction::MachineFunction(const Function *F,
const TargetData &TD = *TM.getTargetData();
bool IsPic = TM.getRelocationModel() == Reloc::PIC_;
unsigned EntrySize = IsPic ? 4 : TD.getPointerSize();
- unsigned Alignment = IsPic ? TD.getIntAlignment() : TD.getPointerAlignment();
+ unsigned Alignment = IsPic ? TD.getIntABIAlignment()
+ : TD.getPointerABIAlignment();
JumpTableInfo = new MachineJumpTableInfo(EntrySize, Alignment);
BasicBlocks.Parent = this;
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
index d83dcc4d50..c8804e907a 100644
--- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp
@@ -3029,7 +3029,7 @@ SDOperand SelectionDAGLegalize::LegalizeOp(SDOperand Op) {
// new ones, as reuse may inhibit scheduling.
const Type *Ty = MVT::getTypeForValueType(ExtraVT);
unsigned TySize = (unsigned)TLI.getTargetData()->getTypeSize(Ty);
- unsigned Align = TLI.getTargetData()->getTypeAlignment(Ty);
+ unsigned Align = TLI.getTargetData()->getTypeAlignmentPref(Ty);
MachineFunction &MF = DAG.getMachineFunction();
int SSFI =
MF.getFrameInfo()->CreateStackObject((unsigned)TySize, Align);
@@ -3937,7 +3937,9 @@ SDOperand SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) {
SDOperand SelectionDAGLegalize::CreateStackTemporary(MVT::ValueType VT) {
MachineFrameInfo *FrameInfo = DAG.getMachineFunction().getFrameInfo();
unsigned ByteSize = MVT::getSizeInBits(VT)/8;
- int FrameIdx = FrameInfo->CreateStackObject(ByteSize, ByteSize);
+ const Type *Ty = MVT::getTypeForValueType(VT);
+ unsigned StackAlign = (unsigned)TLI.getTargetData()->getTypeAlignmentPref(Ty);
+ int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign);
return DAG.getFrameIndex(FrameIdx, TLI.getPointerTy());
}
@@ -4242,9 +4244,12 @@ SDOperand SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned,
if (Op0.getValueType() == MVT::i32) {
// simple 32-bit [signed|unsigned] integer to float/double expansion
- // get the stack frame index of a 8 byte buffer
+ // get the stack frame index of a 8 byte buffer, pessimistically aligned
MachineFunction &MF = DAG.getMachineFunction();
- int SSFI = MF.getFrameInfo()->CreateStackObject(8, 8);
+ const Type *F64Type = MVT::getTypeForValueType(MVT::f64);
+ unsigned StackAlign =
+ (unsigned)TLI.getTargetData()->getTypeAlignmentPref(F64Type);
+ int SSFI = MF.getFrameInfo()->CreateStackObject(8, StackAlign);
// get address of 8 byte buffer
SDOperand StackSlot = DAG.getFrameIndex(SSFI, TLI.getPointerTy());
// word offset constant for Hi/Lo address computation
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 7e6a75d772..e8d58453c2 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -244,17 +244,9 @@ FunctionLoweringInfo::FunctionLoweringInfo(TargetLowering &tli,
const Type *Ty = AI->getAllocatedType();
uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty);
unsigned Align =
- std::max((unsigned)TLI.getTargetData()->getTypeAlignment(Ty),
+ std::max((unsigned)TLI.getTargetData()->getTypeAlignmentPref(Ty),
AI->getAlignment());
- // If the alignment of the value is smaller than the size of the
- // value, and if the size of the value is particularly small
- // (<= 8 bytes), round up to the size of the value for potentially
- // better performance.
- //
- // FIXME: This could be made better with a preferred alignment hook in
- // TargetData. It serves primarily to 8-byte align doubles for X86.
- if (Align < TySize && TySize <= 8) Align = TySize;
TySize *= CUI->getZExtValue(); // Get total allocated size.
if (TySize == 0) TySize = 1; // Don't create zero-sized stack objects.
StaticAllocaMap[AI] =
@@ -1729,8 +1721,9 @@ void SelectionDAGLowering::visitAlloca(AllocaInst &I) {
const Type *Ty = I.getAllocatedType();
uint64_t TySize = TLI.getTargetData()->getTypeSize(Ty);
- unsigned Align = std::max((unsigned)TLI.getTargetData()->getTypeAlignment(Ty),
- I.getAlignment());
+ unsigned Align =
+ std::max((unsigned)TLI.getTargetData()->getTypeAlignmentPref(Ty),
+ I.getAlignment());
SDOperand AllocSize = getValue(I.getArraySize());
MVT::ValueType IntPtr = TLI.getPointerTy();
diff --git a/lib/ExecutionEngine/JIT/JIT.cpp b/lib/ExecutionEngine/JIT/JIT.cpp
index 7fd62cc6e0..c88e393d6a 100644
--- a/lib/ExecutionEngine/JIT/JIT.cpp
+++ b/lib/ExecutionEngine/JIT/JIT.cpp
@@ -338,7 +338,7 @@ void *JIT::getOrEmitGlobalVariable(const GlobalVariable *GV) {
// compilation.
const Type *GlobalType = GV->getType()->getElementType();
size_t S = getTargetData()->getTypeSize(GlobalType);
- size_t A = getTargetData()->getTypeAlignment(GlobalType);
+ size_t A = getTargetData()->getTypeAlignmentPref(GlobalType);
if (A <= 8) {
Ptr = malloc(S);
} else {
diff --git a/lib/Target/Sparc/SparcAsmPrinter.cpp b/lib/Target/Sparc/SparcAsmPrinter.cpp
index 3bb003ad3d..d0d34fca38 100644
--- a/lib/Target/Sparc/SparcAsmPrinter.cpp
+++ b/lib/Target/Sparc/SparcAsmPrinter.cpp
@@ -229,7 +229,7 @@ bool SparcAsmPrinter::doFinalization(Module &M) {
std::string name = Mang->getValueName(I);
Constant *C = I->getInitializer();
unsigned Size = TD->getTypeSize(C->getType());
- unsigned Align = TD->getTypeAlignment(C->getType());
+ unsigned Align = TD->getTypeAlignmentPref(C->getType());
if (C->isNullValue() &&
(I->hasLinkOnceLinkage() || I->hasInternalLinkage() ||
@@ -239,7 +239,7 @@ bool SparcAsmPrinter::doFinalization(Module &M) {
O << "\t.local " << name << "\n";
O << "\t.comm " << name << "," << TD->getTypeSize(C->getType())
- << "," << (unsigned)TD->getTypeAlignment(C->getType());
+ << "," << Align;
O << "\n";
} else {
switch (I->getLinkage()) {
diff --git a/lib/Target/TargetData.cpp b/lib/Target/TargetData.cpp
index c0b0670b96..b1fe43dee8 100644
--- a/lib/Target/TargetData.cpp
+++ b/lib/Target/TargetData.cpp
@@ -34,8 +34,11 @@ namespace {
RegisterPass<TargetData> X("targetdata", "Target Data Layout");
}
-static inline void getTypeInfo(const Type *Ty, const TargetData *TD,
- uint64_t &Size, unsigned char &Alignment);
+static inline void getTypeInfoABI(const Type *Ty, const TargetData *TD,
+ uint64_t &Size, unsigned char &Alignment);
+
+static inline void getTypeInfoPref(const Type *Ty, const TargetData *TD,
+ uint64_t &Size, unsigned char &Alignment);
//===----------------------------------------------------------------------===//
// Support for StructLayout
@@ -52,7 +55,7 @@ StructLayout::StructLayout(const StructType *ST, const TargetData &TD) {
unsigned char A;
unsigned TyAlign;
uint64_t TySize;
- getTypeInfo(Ty, &TD, TySize, A);
+ getTypeInfoABI(Ty, &TD, TySize, A);
TyAlign = ST->isPacked() ? 1 : A;
// Add padding if necessary to make the data element aligned properly...
@@ -80,8 +83,7 @@ StructLayout::StructLayout(const StructType *ST, const TargetData &TD) {
/// return the structure index that contains it.
unsigned StructLayout::getElementContainingOffset(uint64_t Offset) const {
std::vector<uint64_t>::const_iterator SI =
- std::upper_bound(MemberOffsets.begin(), MemberOffsets.end(),
- Offset);
+ std::upper_bound(MemberOffsets.begin(), MemberOffsets.end(), Offset);
assert(SI != MemberOffsets.begin() && "Offset not in structure type!");
--SI;
assert(*SI <= Offset && "upper_bound didn't work");
@@ -99,15 +101,24 @@ void TargetData::init(const std::string &TargetDescription) {
std::string temp = TargetDescription;
LittleEndian = false;
- PointerSize = 8;
- PointerAlignment = 8;
- DoubleAlignment = 8;
- FloatAlignment = 4;
- LongAlignment = 8;
- IntAlignment = 4;
- ShortAlignment = 2;
- ByteAlignment = 1;
- BoolAlignment = 1;
+ PointerMemSize = 8;
+ PointerABIAlignment = 8;
+ DoubleABIAlignment = 8;
+ FloatABIAlignment = 4;
+ LongABIAlignment = 8;
+ IntABIAlignment = 4;
+ ShortABIAlignment = 2;
+ ByteABIAlignment = 1;
+ BoolABIAlignment = 1;
+ BoolPrefAlignment = BoolABIAlignment;
+ BytePrefAlignment = ByteABIAlignment;
+ ShortPrefAlignment = ShortABIAlignment;
+ IntPrefAlignment = IntABIAlignment;
+ LongPrefAlignment = LongABIAlignment;
+ FloatPrefAlignment = FloatABIAlignment;
+ DoublePrefAlignment = DoubleABIAlignment;
+ PointerPrefAlignment = PointerABIAlignment;
+ AggMinPrefAlignment = 0;
while (!temp.empty()) {
std::string token = getToken(temp, "-");
@@ -122,29 +133,58 @@ void TargetData::init(const std::string &TargetDescription) {
LittleEndian = true;
break;
case 'p':
- PointerSize = atoi(getToken(token,":").c_str()) / 8;
- PointerAlignment = atoi(getToken(token,":").c_str()) / 8;
+ PointerMemSize = atoi(getToken(token,":").c_str()) / 8;
+ PointerABIAlignment = atoi(getToken(token,":").c_str()) / 8;
+ PointerPrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (PointerPrefAlignment == 0)
+ PointerPrefAlignment = PointerABIAlignment;
break;
case 'd':
- DoubleAlignment = atoi(getToken(token,":").c_str()) / 8;
+ DoubleABIAlignment = atoi(getToken(token,":").c_str()) / 8;
+ DoublePrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (DoublePrefAlignment == 0)
+ DoublePrefAlignment = DoubleABIAlignment;
break;
case 'f':
- FloatAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ FloatABIAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ FloatPrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (FloatPrefAlignment == 0)
+ FloatPrefAlignment = FloatABIAlignment;
break;
case 'l':
- LongAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ LongABIAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ LongPrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (LongPrefAlignment == 0)
+ LongPrefAlignment = LongABIAlignment;
break;
case 'i':
- IntAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ IntABIAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ IntPrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (IntPrefAlignment == 0)
+ IntPrefAlignment = IntABIAlignment;
break;
case 's':
- ShortAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ ShortABIAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ ShortPrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (ShortPrefAlignment == 0)
+ ShortPrefAlignment = ShortABIAlignment;
break;
case 'b':
- ByteAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ ByteABIAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ BytePrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (BytePrefAlignment == 0)
+ BytePrefAlignment = ByteABIAlignment;
break;
case 'B':
- BoolAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ BoolABIAlignment = atoi(getToken(token, ":").c_str()) / 8;
+ BoolPrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (BoolPrefAlignment == 0)
+ BoolPrefAlignment = BoolABIAlignment;
+ break;
+ case 'A':
+ AggMinPrefAlignment = atoi(getToken(token,":").c_str()) / 8;
+ if (AggMinPrefAlignment == 0)
+ AggMinPrefAlignment = 0;
break;
default:
break;
@@ -153,16 +193,25 @@ void TargetData::init(const std::string &TargetDescription) {
}
TargetData::TargetData(const Module *M) {
- LittleEndian = M->getEndianness() != Module::BigEndian;
- PointerSize = M->getPointerSize() != Module::Pointer64 ? 4 : 8;
- PointerAlignment = PointerSize;
- DoubleAlignment = PointerSize;
- FloatAlignment = 4;
- LongAlignment = PointerSize;
- IntAlignment = 4;
- ShortAlignment = 2;
- ByteAlignment = 1;
- BoolAlignment = 1;
+ LittleEndian = M->getEndianness() != Module::BigEndian;
+ PointerMemSize = M->getPointerSize() != Module::Pointer64 ? 4 : 8;
+ PointerABIAlignment = PointerMemSize;
+ DoubleABIAlignment = PointerMemSize;
+ FloatABIAlignment = 4;
+ LongABIAlignment = PointerMemSize;
+ IntABIAlignment = 4;
+ ShortABIAlignment = 2;
+ ByteABIAlignment = 1;
+ BoolABIAlignment = 1;
+ BoolPrefAlignment = BoolABIAlignment;
+ BytePrefAlignment = ByteABIAlignment;
+ ShortPrefAlignment = ShortABIAlignment;
+ IntPrefAlignment = IntABIAlignment;
+ LongPrefAlignment = LongABIAlignment;
+ FloatPrefAlignment = FloatABIAlignment;
+ DoublePrefAlignment = DoubleABIAlignment;
+ PointerPrefAlignment = PointerABIAlignment;
+ AggMinPrefAlignment = 0;
}
/// Layouts - The lazy cache of structure layout information maintained by
@@ -195,14 +244,22 @@ std::string TargetData::getStringRepresentation() const {
else
repr << "E";
- repr << "-p:" << (PointerSize * 8) << ":" << (PointerAlignment * 8);
- repr << "-d:64:" << (DoubleAlignment * 8);
- repr << "-f:32:" << (FloatAlignment * 8);
- repr << "-l:64:" << (LongAlignment * 8);
- repr << "-i:32:" << (IntAlignment * 8);
- repr << "-s:16:" << (ShortAlignment * 8);
- repr << "-b:8:" << (ByteAlignment * 8);
- repr << "-B:8:" << (BoolAlignment * 8);
+ repr << "-p:" << (PointerMemSize * 8) << ":" << (PointerABIAlignment * 8);
+ repr << "-d:" << (DoubleABIAlignment * 8) << ":"
+ << (DoublePrefAlignment * 8);
+ repr << "-f:" << (FloatABIAlignment * 8) << ":"
+ << (FloatPrefAlignment * 8);
+ repr << "-l:" << (LongABIAlignment * 8) << ":"
+ << (LongPrefAlignment * 8);
+ repr << "-i:" << (IntABIAlignment * 8) << ":"
+ << (IntPrefAlignment * 8);
+ repr << "-s:" << (ShortABIAlignment * 8) << ":"
+ << (ShortPrefAlignment * 8);
+ repr << "-b:" << (ByteABIAlignment * 8) << ":"
+ << (BytePrefAlignment * 8);
+ repr << "-B:" << (BoolABIAlignment * 8) << ":"
+ << (BoolPrefAlignment * 8);
+ repr << "-A:" << (AggMinPrefAlignment * 8);
return repr.str();
}
@@ -237,41 +294,41 @@ void TargetData::InvalidateStructLayoutInfo(const StructType *Ty) const {
-static inline void getTypeInfo(const Type *Ty, const TargetData *TD,
- uint64_t &Size, unsigned char &Alignment) {
+static inline void getTypeInfoABI(const Type *Ty, const TargetData *TD,
+ uint64_t &Size, unsigned char &Alignment) {
assert(Ty->isSized() && "Cannot getTypeInfo() on a type that is unsized!");
switch (Ty->getTypeID()) {
case Type::IntegerTyID: {
unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
if (BitWidth <= 8) {
- Size = 1; Alignment = TD->getByteAlignment();
+ Size = 1; Alignment = TD->getByteABIAlignment();
} else if (BitWidth <= 16) {
- Size = 2; Alignment = TD->getShortAlignment();
+ Size = 2; Alignment = TD->getShortABIAlignment();
} else if (BitWidth <= 32) {
- Size = 4; Alignment = TD->getIntAlignment();
+ Size = 4; Alignment = TD->getIntABIAlignment();
} else if (BitWidth <= 64) {
- Size = 8; Alignment = TD->getLongAlignment();
+ Size = 8; Alignment = TD->getLongABIAlignment();
} else
assert(0 && "Integer types > 64 bits not supported.");
return;
}
- case Type::VoidTyID: Size = 1; Alignment = TD->getByteAlignment(); return;
- case Type::FloatTyID: Size = 4; Alignment = TD->getFloatAlignment(); return;
- case Type::DoubleTyID: Size = 8; Alignment = TD->getDoubleAlignment(); return;
+ case Type::VoidTyID: Size = 1; Alignment = TD->getByteABIAlignment(); return;
+ case Type::FloatTyID: Size = 4; Alignment = TD->getFloatABIAlignment(); return;
+ case Type::DoubleTyID: Size = 8; Alignment = TD->getDoubleABIAlignment(); return;
case Type::LabelTyID:
case Type::PointerTyID:
- Size = TD->getPointerSize(); Alignment = TD->getPointerAlignment();
+ Size = TD->getPointerSize(); Alignment = TD->getPointerABIAlignment();
return;
case Type::ArrayTyID: {
const ArrayType *ATy = cast<ArrayType>(Ty);
- getTypeInfo(ATy->getElementType(), TD, Size, Alignment);
+ getTypeInfoABI(ATy->getElementType(), TD, Size, Alignment);
unsigned AlignedSize = (Size + Alignment - 1)/Alignment*Alignment;
Size = AlignedSize*ATy->getNumElements();
return;
}
case Type::PackedTyID: {
const PackedType *PTy = cast<PackedType>(Ty);
- getTypeInfo(PTy->getElementType(), TD, Size, Alignment);
+ getTypeInfoABI(PTy->getElementType(), TD, Size, Alignment);
unsigned AlignedSize = (Size + Alignment - 1)/Alignment*Alignment;
Size = AlignedSize*PTy->getNumElements();
// FIXME: The alignments of specific packed types are target dependent.
@@ -292,22 +349,94 @@ static inline void getTypeInfo(const Type *Ty, const TargetData *TD,
}
}
+static inline void getTypeInfoPref(const Type *Ty, const TargetData *TD,
+ uint64_t &Size, unsigned char &Alignment) {
+ assert(Ty->isSized() && "Cannot getTypeInfoPref() on a type that is unsized!");
+ switch (Ty->getTypeID()) {
+ case Type::IntegerTyID: {
+ unsigned BitWidth = cast<IntegerType>(Ty)->getBitWidth();
+ if (BitWidth <= 8) {
+ Size = 1; Alignment = TD->getBytePrefAlignment();
+ } else if (BitWidth <= 16) {
+ Size = 2; Alignment = TD->getShortPrefAlignment();
+ } else if (BitWidth <= 32) {
+ Size = 4; Alignment = TD->getIntPrefAlignment();
+ } else if (BitWidth <= 64) {
+ Size = 8; Alignment = TD->getLongPrefAlignment();
+ } else
+ assert(0 && "Integer types > 64 bits not supported.");
+ return;
+ }
+ case Type::VoidTyID:
+ Size = 1; Alignment = TD->getBytePrefAlignment();
+ return;
+ case Type::FloatTyID:
+ Size = 4; Alignment = TD->getFloatPrefAlignment();
+ return;
+ case Type::DoubleTyID:
+ Size = 8; Alignment = TD->getDoublePrefAlignment();
+ return;
+ case Type::LabelTyID:
+ case Type::PointerTyID:
+ Size = TD->getPointerSize(); Alignment = TD->getPointerPrefAlignment();
+ return;
+ case Type::ArrayTyID: {
+ const ArrayType *ATy = cast<ArrayType>(Ty);
+ getTypeInfoPref(ATy->getElementType(), TD, Size, Alignment);
+ unsigned AlignedSize = (Size + Alignment - 1)/Alignment*Alignment;
+ Size = AlignedSize*ATy->getNumElements();
+ return;
+ }
+ case Type::PackedTyID: {
+ const PackedType *PTy = cast<PackedType>(Ty);
+ getTypeInfoPref(PTy->getElementType(), TD, Size, Alignment);
+ unsigned AlignedSize = (Size + Alignment - 1)/Alignment*Alignment;
+ Size = AlignedSize*PTy->getNumElements();
+ // FIXME: The alignments of specific packed types are target dependent.
+ // For now, just set it to be equal to Size.
+ Alignment = Size;
+ return;
+ }
+ case Type::StructTyID: {
+ // Get the layout annotation... which is lazily created on demand;
+ // enforce minimum aggregate alignment.
+ const StructLayout *Layout = TD->getStructLayout(cast<StructType>(Ty));
+ Size = Layout->StructSize;
+ Alignment = std::max(Layout->StructAlignment,
+ (const unsigned int) TD->getAggMinPrefAlignment());
+ return;
+ }
+
+ default:
+ assert(0 && "Bad type for getTypeInfoPref!!!");
+ return;
+ }
+}
+
+
uint64_t TargetData::getTypeSize(const Type *Ty) const {
uint64_t Size;
unsigned char Align;
- getTypeInfo(Ty, this, Size, Align);
+ getTypeInfoABI(Ty, this, Size, Align);
return Size;
}
-unsigned char TargetData::getTypeAlignment(const Type *Ty) const {
+unsigned char TargetData::getTypeAlignmentABI(const Type *Ty) const {
+ uint64_t Size;
+ unsigned char Align;
+ getTypeInfoABI(Ty, this, Size, Align);
+ return Align;
+}
+
+unsigned char TargetData::getTypeAlignmentPref(const Type *Ty) const {
uint64_t Size;
unsigned char Align;
- getTypeInfo(Ty, this, Size, Align);
+ getTypeInfoPref(Ty, this, Size, Align);
return Align;
}
unsigned char TargetData::getTypeAlignmentShift(const Type *Ty) const {
- unsigned Align = getTypeAlignment(Ty);
+ unsigned Align = getTypeAlignmentABI(Ty);
assert(!(Align & (Align-1)) && "Alignment is not a power of two!");
return Log2_32(Align);
}
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index d8283a5f22..17bc7b14eb 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -109,8 +109,8 @@ X86_64TargetMachine::X86_64TargetMachine(const Module &M, const std::string &FS)
X86TargetMachine::X86TargetMachine(const Module &M, const std::string &FS, bool is64Bit)
: Subtarget(M, FS, is64Bit),
DataLayout(Subtarget.is64Bit() ?
- std::string("e-p:64:64-d:32-l:32") :
- std::string("e-p:32:32-d:32-l:32")),
+ std::string("e-p:64:64-d:32:64-l:32") :
+ std::string("e-p:32:32-d:32:64-l:32")),
FrameInfo(TargetFrameInfo::StackGrowsDown,
Subtarget.getStackAlignment(), Subtarget.is64Bit() ? -8 : -4),
InstrInfo(*this), JITInfo(*this), TLInfo(*this) {
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 414ae794b1..04b06d28aa 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -5779,8 +5779,8 @@ Instruction *InstCombiner::PromoteCastOfAllocation(CastInst &CI,
const Type *CastElTy = PTy->getElementType();
if (!AllocElTy->isSized() || !CastElTy->isSized()) return 0;
- unsigned AllocElTyAlign = TD->ge