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Print float constants as 4 byte values.

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Also, fix endianness problems when cross compiling from little-endian host.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15847 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-08-17 02:48:44 +00:00
parent 505e783d8c
commit 469ab79584
2 changed files with 50 additions and 44 deletions
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47
lib/Target/PowerPC/PPC32AsmPrinter.cpp
View File

@ -195,21 +195,24 @@ void PowerPCAsmPrinter::emitGlobalConstant(const Constant *CV) {
// FP Constants are printed as integer constants to avoid losing
// precision...
double Val = CFP->getValue();
if (1 || CFP->getType() == Type::DoubleTy) {
if (CFP->getType() == Type::DoubleTy) {
union DU { // Abide by C TBAA rules
double FVal;
uint64_t UVal;
struct {
uint32_t MSWord;
uint32_t LSWord;
} T;
} U;
U.FVal = Val;
O << ".long\t" << U.T.MSWord << "\t; double most significant word "
<< Val << "\n";
O << ".long\t" << U.T.LSWord << "\t; double least significant word "
<< Val << "\n";
if (TD.isBigEndian()) {
O << ".long\t" << unsigned(U.UVal >> 32)
<< "\t; double most significant word " << Val << "\n";
O << ".long\t" << unsigned(U.UVal)
<< "\t; double least significant word " << Val << "\n";
} else {
O << ".long\t" << unsigned(U.UVal)
<< "\t; double least significant word " << Val << "\n";
O << ".long\t" << unsigned(U.UVal >> 32)
<< "\t; double most significant word " << Val << "\n";
}
return;
} else {
union FU { // Abide by C TBAA rules
@ -223,19 +226,19 @@ void PowerPCAsmPrinter::emitGlobalConstant(const Constant *CV) {
}
} else if (CV->getType() == Type::ULongTy || CV->getType() == Type::LongTy) {
if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
union DU { // Abide by C TBAA rules
int64_t UVal;
struct {
uint32_t MSWord;
uint32_t LSWord;
} T;
} U;
U.UVal = CI->getRawValue();
uint64_t Val = CI->getRawValue();
O << ".long\t" << U.T.MSWord << "\t; Double-word most significant word "
<< U.UVal << "\n";
O << ".long\t" << U.T.LSWord << "\t; Double-word least significant word "
<< U.UVal << "\n";
if (TD.isBigEndian()) {
O << ".long\t" << unsigned(Val >> 32)
<< "\t; Double-word most significant word " << Val << "\n";
O << ".long\t" << unsigned(Val)
<< "\t; Double-word least significant word " << Val << "\n";
} else {
O << ".long\t" << unsigned(Val)
<< "\t; Double-word least significant word " << Val << "\n";
O << ".long\t" << unsigned(Val >> 32)
<< "\t; Double-word most significant word " << Val << "\n";
}
return;
}
}

47
lib/Target/PowerPC/PPCAsmPrinter.cpp
View File

@ -195,21 +195,24 @@ void PowerPCAsmPrinter::emitGlobalConstant(const Constant *CV) {
// FP Constants are printed as integer constants to avoid losing
// precision...
double Val = CFP->getValue();
if (1 || CFP->getType() == Type::DoubleTy) {
if (CFP->getType() == Type::DoubleTy) {
union DU { // Abide by C TBAA rules
double FVal;
uint64_t UVal;
struct {
uint32_t MSWord;
uint32_t LSWord;
} T;
} U;
U.FVal = Val;
O << ".long\t" << U.T.MSWord << "\t; double most significant word "
<< Val << "\n";
O << ".long\t" << U.T.LSWord << "\t; double least significant word "
<< Val << "\n";
if (TD.isBigEndian()) {
O << ".long\t" << unsigned(U.UVal >> 32)
<< "\t; double most significant word " << Val << "\n";
O << ".long\t" << unsigned(U.UVal)
<< "\t; double least significant word " << Val << "\n";
} else {
O << ".long\t" << unsigned(U.UVal)
<< "\t; double least significant word " << Val << "\n";
O << ".long\t" << unsigned(U.UVal >> 32)
<< "\t; double most significant word " << Val << "\n";
}
return;
} else {
union FU { // Abide by C TBAA rules
@ -223,19 +226,19 @@ void PowerPCAsmPrinter::emitGlobalConstant(const Constant *CV) {
}
} else if (CV->getType() == Type::ULongTy || CV->getType() == Type::LongTy) {
if (const ConstantInt *CI = dyn_cast<ConstantInt>(CV)) {
union DU { // Abide by C TBAA rules
int64_t UVal;
struct {
uint32_t MSWord;
uint32_t LSWord;
} T;
} U;
U.UVal = CI->getRawValue();
uint64_t Val = CI->getRawValue();
O << ".long\t" << U.T.MSWord << "\t; Double-word most significant word "
<< U.UVal << "\n";
O << ".long\t" << U.T.LSWord << "\t; Double-word least significant word "
<< U.UVal << "\n";
if (TD.isBigEndian()) {
O << ".long\t" << unsigned(Val >> 32)
<< "\t; Double-word most significant word " << Val << "\n";
O << ".long\t" << unsigned(Val)
<< "\t; Double-word least significant word " << Val << "\n";
} else {
O << ".long\t" << unsigned(Val)
<< "\t; Double-word least significant word " << Val << "\n";
O << ".long\t" << unsigned(Val >> 32)
<< "\t; Double-word most significant word " << Val << "\n";
}
return;
}
}