6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-13 20:32:21 +00:00
Code Issues Projects Releases Wiki Activity

Add attempted idiotproofing comment per review.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78825 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dale Johannesen 2009-08-12 18:04:11 +00:00
parent a79eefd4f8
commit 4e97a0f0cb
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Support/APInt.cpp
View File

@ -885,7 +885,7 @@ APInt llvm::APIntOps::RoundDoubleToAPInt(double Double, unsigned width) {
return isNeg ? -Tmp : Tmp;
}
/// RoundToDouble - This function convert this APInt to a double.
/// RoundToDouble - This function converts this APInt to a double.
/// The layout for double is as following (IEEE Standard 754):
/// --------------------------------------
/// | Sign Exponent Fraction Bias |
@ -895,6 +895,7 @@ APInt llvm::APIntOps::RoundDoubleToAPInt(double Double, unsigned width) {
double APInt::roundToDouble(bool isSigned) const {
// Handle the simple case where the value is contained in one uint64_t.
// It is wrong to optimize getWord(0) to VAL; there might be more than one word.
if (isSingleWord() || getActiveBits() <= APINT_BITS_PER_WORD) {
if (isSigned) {
int64_t sext = (int64_t(getWord(0)) << (64-BitWidth)) >> (64-BitWidth);