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Revised per review feedback from previous patch.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41353 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen
2007-08-24 05:08:11 +00:00
parent ada530b4f5
commit d3b51fd170
3 changed files with 29 additions and 56 deletions
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51
lib/Support/APFloat.cpp
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@ -14,6 +14,7 @@
#include <cassert>
#include "llvm/ADT/APFloat.h"
#include "llvm/Support/MathExtras.h"
using namespace llvm;
@ -1534,10 +1535,6 @@ APFloat::getHashValue() const {
double
APFloat::convertToDouble() const {
union {
double d;
uint64_t i;
} u;
assert(semantics == (const llvm::fltSemantics* const)&IEEEdouble);
assert (partCount()==1);
@ -1562,17 +1559,12 @@ APFloat::convertToDouble() const {
} else
assert(0);
u.i = ((mysign & 1) << 63) | ((myexponent & 0x7ff) << 52) |
(mysignificand & 0xfffffffffffffLL);
return u.d;
return BitsToDouble(((mysign & 1) << 63) | ((myexponent & 0x7ff) << 52) |
(mysignificand & 0xfffffffffffffLL));
}
float
APFloat::convertToFloat() const {
union {
float f;
int32_t i;
} u;
assert(semantics == (const llvm::fltSemantics* const)&IEEEsingle);
assert (partCount()==1);
@ -1597,26 +1589,19 @@ APFloat::convertToFloat() const {
} else
assert(0);
u.i = ((mysign&1) << 31) | ((myexponent&0xff) << 23) |
((mysignificand & 0x7fffff));
return u.f;
return BitsToFloat(((mysign&1) << 31) | ((myexponent&0xff) << 23) |
(mysignificand & 0x7fffff));
}
APFloat::APFloat(double d) {
uint64_t i = DoubleToBits(d);
uint64_t mysign = i >> 63;
uint64_t myexponent = (i >> 52) & 0x7ff;
uint64_t mysignificand = i & 0xfffffffffffffLL;
initialize(&APFloat::IEEEdouble);
union {
double d;
uint64_t i;
} u;
u.d = d;
assert(partCount()==1);
uint64_t mysign, myexponent, mysignificand;
mysign = u.i >> 63;
myexponent = (u.i >> 52) & 0x7ff;
mysignificand = u.i & 0xfffffffffffffLL;
if (myexponent==0 && mysignificand==0) {
// exponent, significand meaningless
category = fcZero;
@ -1637,20 +1622,14 @@ APFloat::APFloat(double d) {
}
APFloat::APFloat(float f) {
uint32_t i = FloatToBits(f);
uint32_t mysign = i >> 31;
uint32_t myexponent = (i >> 23) & 0xff;
uint32_t mysignificand = i & 0x7fffff;
initialize(&APFloat::IEEEsingle);
union {
float f;
uint32_t i;
} u;
u.f = f;
assert(partCount()==1);
uint32_t mysign, myexponent, mysignificand;
mysign = u.i >> 31;
myexponent = (u.i >> 23) & 0xff;
mysignificand = u.i & 0x7fffff;
if (myexponent==0 && mysignificand==0) {
// exponent, significand meaningless
category = fcZero;