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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-02 14:45:53 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-08-02 14:45:53 +0000 |
| commit | 28897ca434892340f2e188a0331db92d5899409b (patch) | |
| tree | baae5d30b510a82ab16d6ac78e6ae7ee33937e2a /include | |
| parent | 5258d9f96767d898af4756930ce0c66a31ddf7d9 (diff) | |
| download | llvm-28897ca434892340f2e188a0331db92d5899409b.tar.gz llvm-28897ca434892340f2e188a0331db92d5899409b.tar.bz2 llvm-28897ca434892340f2e188a0331db92d5899409b.tar.xz | |
Add TargetRegisterInfo::hasRegUnit().
This trivial helper function tests if a register contains a register
unit. It is similar to regsOverlap(), but with asymmetric arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161180 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Target/TargetRegisterInfo.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetRegisterInfo.h b/include/llvm/Target/TargetRegisterInfo.h index a70b8f6cbd..df4d900e4c 100644 --- a/include/llvm/Target/TargetRegisterInfo.h +++ b/include/llvm/Target/TargetRegisterInfo.h @@ -349,6 +349,14 @@ public: return false; } + /// hasRegUnit - Returns true if Reg contains RegUnit. + bool hasRegUnit(unsigned Reg, unsigned RegUnit) const { + for (MCRegUnitIterator Units(Reg, this); Units.isValid(); ++Units) + if (*Units == RegUnit) + return true; + return false; + } + /// isSubRegister - Returns true if regB is a sub-register of regA. /// bool isSubRegister(unsigned regA, unsigned regB) const { |