nicolas/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Reimplement DefineTypeSize in terms of APInt. This eliminates some

Browse Source 
magic integer arithmetic and allows it to work with types larger
than 64 bits.

llvm-svn: 126365
This commit is contained in:
Chris Lattner
2011-02-24 06:54:56 +00:00
parent 190aa10fe6
commit d767a0300e
1 changed files with 4 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
clang/lib/Frontend/InitPreprocessor.cpp
View File

@@ -174,15 +174,10 @@ static void DefineFloatMacros(MacroBuilder &Builder, llvm::StringRef Prefix,
/// signedness of 'isSigned' and with a value suffix of 'ValSuffix' (e.g. LL).
static void DefineTypeSize(llvm::StringRef MacroName, unsigned TypeWidth,
llvm::StringRef ValSuffix, bool isSigned,
MacroBuilder& Builder) {
long long MaxVal;
if (isSigned) {
assert(TypeWidth != 1);
MaxVal = ~0ULL >> (65-TypeWidth);
} else
MaxVal = ~0ULL >> (64-TypeWidth);
Builder.defineMacro(MacroName, llvm::Twine(MaxVal) + ValSuffix);
MacroBuilder &Builder) {
llvm::APInt MaxVal = isSigned ? llvm::APInt::getSignedMaxValue(TypeWidth)
: llvm::APInt::getMaxValue(TypeWidth);
Builder.defineMacro(MacroName, MaxVal.toString(10, isSigned) + ValSuffix);
}
/// DefineTypeSize - An overloaded helper that uses TargetInfo to determine