diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp b/llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp index 7353c2c010c..a474601d5f3 100644 --- a/llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp +++ b/llvm/lib/CodeGen/GlobalISel/RegisterBankInfo.cpp @@ -441,7 +441,11 @@ void RegisterBankInfo::applyDefaultMapping(const OperandsMapper &OpdMapper) { LLT OrigTy = MRI.getType(OrigReg); LLT NewTy = MRI.getType(NewReg); if (OrigTy != NewTy) { - assert(OrigTy.getSizeInBits() == NewTy.getSizeInBits() && + // The default mapping is not supposed to change the size of + // the storage. However, right now we don't necessarily bump all + // the types to storage size. For instance, we can consider + // s16 G_AND legal whereas the storage size is going to be 32. + assert(OrigTy.getSizeInBits() <= NewTy.getSizeInBits() && "Types with difference size cannot be handled by the default " "mapping"); DEBUG(dbgs() << "\nChange type of new opd from " << NewTy << " to " |
