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Switch the default DataLayout to be little endian, and make the variable

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be BigEndian so the default can continue to be zero-initialized.

This is one of the prerequisites to making DataLayout a constant and
always available part of every module.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220193 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth 2014-10-20 10:41:29 +00:00
parent d413989edb
commit 34b45cdb95
2 changed files with 9 additions and 9 deletions
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8
include/llvm/IR/DataLayout.h
View File

@ -99,7 +99,7 @@ struct PointerAlignElem {
class DataLayout {
private:
/// Defaults to false.
bool LittleEndian;
bool BigEndian;
unsigned StackNaturalAlign;
@ -180,7 +180,7 @@ public:
DataLayout &operator=(const DataLayout &DL) {
clear();
LittleEndian = DL.isLittleEndian();
BigEndian = DL.isBigEndian();
StackNaturalAlign = DL.StackNaturalAlign;
ManglingMode = DL.ManglingMode;
LegalIntWidths = DL.LegalIntWidths;
@ -198,8 +198,8 @@ public:
void reset(StringRef LayoutDescription);
/// Layout endianness...
bool isLittleEndian() const { return LittleEndian; }
bool isBigEndian() const { return !LittleEndian; }
bool isLittleEndian() const { return !BigEndian; }
bool isBigEndian() const { return BigEndian; }
/// \brief Returns the string representation of the DataLayout.
///

10
lib/IR/DataLayout.cpp
View File

@ -179,7 +179,7 @@ void DataLayout::reset(StringRef Desc) {
clear();
LayoutMap = nullptr;
LittleEndian = false;
BigEndian = false;
StackNaturalAlign = 0;
ManglingMode = MM_None;
@ -239,10 +239,10 @@ void DataLayout::parseSpecifier(StringRef Desc) {
// FIXME: remove this on LLVM 4.0.
break;
case 'E':
LittleEndian = false;
BigEndian = true;
break;
case 'e':
LittleEndian = true;
BigEndian = false;
break;
case 'p': {
// Address space.
@ -357,7 +357,7 @@ void DataLayout::init(const Module *M) {
}
bool DataLayout::operator==(const DataLayout &Other) const {
bool Ret = LittleEndian == Other.LittleEndian &&
bool Ret = BigEndian == Other.BigEndian &&
StackNaturalAlign == Other.StackNaturalAlign &&
ManglingMode == Other.ManglingMode &&
LegalIntWidths == Other.LegalIntWidths &&
@ -526,7 +526,7 @@ std::string DataLayout::getStringRepresentation() const {
std::string Result;
raw_string_ostream OS(Result);
OS << (LittleEndian ? "e" : "E");
OS << (BigEndian ? "E" : "e");
switch (ManglingMode) {
case MM_None: