diff options
Diffstat (limited to 'llvm/utils/TableGen/CodeGenInstruction.cpp')
| -rw-r--r-- | llvm/utils/TableGen/CodeGenInstruction.cpp | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/llvm/utils/TableGen/CodeGenInstruction.cpp b/llvm/utils/TableGen/CodeGenInstruction.cpp index f1ba6f7200f..a2989b116d8 100644 --- a/llvm/utils/TableGen/CodeGenInstruction.cpp +++ b/llvm/utils/TableGen/CodeGenInstruction.cpp @@ -15,6 +15,7 @@ #include "CodeGenTarget.h" #include "Record.h" #include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringMap.h" #include "llvm/ADT/STLExtras.h" #include <set> using namespace llvm; @@ -407,6 +408,10 @@ CodeGenInstAlias::CodeGenInstAlias(Record *R, CodeGenTarget &T) " arguments, but " + ResultInst->TheDef->getName() + " instruction expects " + utostr(ResultInst->Operands.size())+ " operands!"); + + // NameClass - If argument names are repeated, we need to verify they have + // the same class. + StringMap<Record*> NameClass; // Decode and validate the arguments of the result. for (unsigned i = 0, e = Result->getNumArgs(); i != e; ++i) { @@ -425,6 +430,15 @@ CodeGenInstAlias::CodeGenInstAlias(Record *R, CodeGenTarget &T) ", instruction operand is class " + ResultInst->Operands[i].Rec->getName()); + // Verify we don't have something like: (someinst GR16:$foo, GR32:$foo) + // $foo can exist multiple times in the result list, but it must have the + // same type. + Record *&Entry = NameClass[Result->getArgName(i)]; + if (Entry && Entry != ADI->getDef()) + throw TGError(R->getLoc(), "result value $" + Result->getArgName(i) + + " is both " + Entry->getName() + " and " + + ADI->getDef()->getName() + "!"); + // Now that it is validated, add it. ResultOperands.push_back(ResultOperand(Result->getArgName(i), ADI->getDef())); |
