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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-12-21 18:38:09 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-12-21 18:38:09 +0000 |
| commit | 70fe6ecb6d0c3b556f2c4e3c1e5013da821beded (patch) | |
| tree | 021a2f746be057798386ddfb9e84c857b58f0aac | |
| parent | 4716cf49814e918d3d3fcc1dbdbc69f8c2197f3f (diff) | |
Add a missing assertion, the null register has no register units.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170916 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | include/llvm/MC/MCRegisterInfo.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/llvm/MC/MCRegisterInfo.h b/include/llvm/MC/MCRegisterInfo.h index 1fe870ed14..f5b4dddc51 100644 --- a/include/llvm/MC/MCRegisterInfo.h +++ b/include/llvm/MC/MCRegisterInfo.h @@ -479,6 +479,7 @@ public: /// MCRegUnitIterator - Create an iterator that traverses the register units /// in Reg. MCRegUnitIterator(unsigned Reg, const MCRegisterInfo *MCRI) { + assert(Reg && "Null register has no regunits"); // Decode the RegUnits MCRegisterDesc field. unsigned RU = MCRI->get(Reg).RegUnits; unsigned Scale = RU & 15; |