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ADT/Triple: Add helper function for OS X version checks.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129801 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2011-04-19 20:30:10 +00:00
parent 8974153870
commit 4860fe0ad0
1 changed files with 24 additions and 1 deletions
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25
include/llvm/ADT/Triple.h
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@ -249,7 +249,8 @@ public:
return getOSMajorVersion();
}
bool isOSVersionLT(unsigned Major, unsigned B_Minor, unsigned Micro) {
bool isOSVersionLT(unsigned Major, unsigned Minor = 0,
unsigned Micro = 0) const {
unsigned LHS[3];
getOSVersion(LHS[0], LHS[1], LHS[2]);
@ -263,6 +264,28 @@ public:
return false;
}
/// isOSX - Is this an OS X triple. For legacy reasons, we support both
/// "darwin" and "osx" as OS X triples.
bool isOSX() const {
return getOS() == Triple::Darwin || getOS() == Triple::OSX;
}
/// isOSXVersionLT - Comparison function for checking OS X version
/// compatibility, which handles supporting skewed version numbering schemes
/// used by the "darwin" triples.
unsigned isOSXVersionLT(unsigned Major, unsigned Minor = 0,
unsigned Micro = 0) const {
assert(isOSX() && "Not an OS X triple!");
// If this is OS X, expect a sane version number.
if (getOS() == Triple::OSX)
return isOSVersionLT(Major, Minor, Micro);
// Otherwise, compare to the "Darwin" number.
assert(Major == 10 && "Unexpected major version");
return isOSVersionLT(Minor + 4, Micro, 0);
}
/// @}
/// @name Mutators
/// @{