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Add various coarse bit-width architecture predicates to llvm::Triple.

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These are very useful for frontends and other utilities reasoning about
or selecting between triples.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149353 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2012-01-31 04:52:32 +00:00
parent 90f1d8a5da
commit 6f72ac4799
3 changed files with 125 additions and 0 deletions
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19
include/llvm/ADT/Triple.h
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@@ -241,6 +241,25 @@ public:
/// @name Convenience Predicates
/// @{
/// \brief Test whether the architecture is 64-bit
///
/// Note that this tests for 64-bit pointer width, and nothing else. Note
/// that we intentionally expose only three predicates, 64-bit, 32-bit, and
/// 16-bit. The inner details of pointer width for particular architectures
/// is not summed up in the triple, and so only a coarse grained predicate
/// system is provided.
bool isArch64Bit() const;
/// \brief Test whether the architecture is 32-bit
///
/// Note that this tests for 32-bit pointer width, and nothing else.
bool isArch32Bit() const;
/// \brief Test whether the architecture is 16-bit
///
/// Note that this tests for 16-bit pointer width, and nothing else.
bool isArch16Bit() const;
/// isOSVersionLT - Helper function for doing comparisons against version
/// numbers included in the target triple.
bool isOSVersionLT(unsigned Major, unsigned Minor = 0,