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- Add an endianness field to the TargetData datastructure

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4174 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-10-14 22:41:13 +00:00
parent ad9ea7e694
commit 85131c8277
2 changed files with 16 additions and 7 deletions
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7
include/llvm/Target/TargetData.h
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@ -23,6 +23,7 @@ class StructType;
class StructLayout;
class TargetData : public ImmutablePass {
bool LittleEndian; // Defaults to false
unsigned char ByteAlignment; // Defaults to 1 bytes
unsigned char ShortAlignment; // Defaults to 2 bytes
unsigned char IntAlignment; // Defaults to 4 bytes
@ -37,6 +38,7 @@ class TargetData : public ImmutablePass {
static Annotation *TypeAnFactory(AnnotationID, const Annotable *, void *);
public:
TargetData(const std::string &TargetName = "SparcV9",
bool LittleEndian = false,
unsigned char IntRegSize = 8,
unsigned char PtrSize = 8,
unsigned char PtrAl = 8, unsigned char DoubleAl = 8,
@ -45,6 +47,11 @@ public:
unsigned char ByteAl = 1);
~TargetData(); // Not virtual, do not subclass this class
/// Target endianness...
bool isLittleEndian() const { return LittleEndian; }
bool isBigEndian() const { return !LittleEndian; }
/// Target alignment constraints
unsigned char getByteAlignment() const { return ByteAlignment; }
unsigned char getShortAlignment() const { return ShortAlignment; }
unsigned char getIntAlignment() const { return IntAlignment; }

2
lib/Target/TargetData.cpp
View File

@ -81,6 +81,7 @@ Annotation *TargetData::TypeAnFactory(AnnotationID AID, const Annotable *T,
//===----------------------------------------------------------------------===//
TargetData::TargetData(const std::string &TargetName,
bool isLittleEndian,
unsigned char IntRegSize, unsigned char PtrSize,
unsigned char PtrAl, unsigned char DoubleAl,
unsigned char FloatAl, unsigned char LongAl,
@ -89,6 +90,7 @@ TargetData::TargetData(const std::string &TargetName,
: AID(AnnotationManager::getID("TargetData::" + TargetName)) {
AnnotationManager::registerAnnotationFactory(AID, TypeAnFactory, this);
LittleEndian = isLittleEndian;
IntegerRegSize = IntRegSize;
PointerSize = PtrSize;
PointerAlignment = PtrAl;