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| author | Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> | 2018-07-18 11:03:22 +0000 |
|---|---|---|
| committer | Andrea Di Biagio <Andrea_DiBiagio@sn.scee.net> | 2018-07-18 11:03:22 +0000 |
| commit | 9a2e9db7126a4a3bacf932e34484b187ee12fc74 (patch) | |
| tree | f5cddea8ee64624a12d54000eb0a7e49eb05d27c | |
| parent | a1bb8f7a0c0db9098321506282285399f33914e6 (diff) | |
| download | bcm5719-llvm-9a2e9db7126a4a3bacf932e34484b187ee12fc74.tar.gz bcm5719-llvm-9a2e9db7126a4a3bacf932e34484b187ee12fc74.zip | |
[Tablegen][PredicateExpander] Add the ability to define checks for invalid registers.
This was discussed in review D49436.
llvm-svn: 337378
| -rw-r--r-- | llvm/utils/TableGen/PredicateExpander.cpp | 9 | ||||
| -rw-r--r-- | llvm/utils/TableGen/PredicateExpander.h | 1 |
2 files changed, 10 insertions, 0 deletions
diff --git a/llvm/utils/TableGen/PredicateExpander.cpp b/llvm/utils/TableGen/PredicateExpander.cpp index 56ffa77e4ed..68eb32794a0 100644 --- a/llvm/utils/TableGen/PredicateExpander.cpp +++ b/llvm/utils/TableGen/PredicateExpander.cpp @@ -44,6 +44,12 @@ void PredicateExpander::expandCheckRegOperand(formatted_raw_ostream &OS, OS << Reg->getName(); } +void PredicateExpander::expandCheckInvalidRegOperand(formatted_raw_ostream &OS, + int OpIndex) { + OS << "MI" << (isByRef() ? "." : "->") << "getOperand(" << OpIndex + << ").getReg() " << (shouldNegate() ? "!= " : "== ") << "0"; +} + void PredicateExpander::expandCheckSameRegOperand(formatted_raw_ostream &OS, int First, int Second) { OS << "MI" << (isByRef() ? "." : "->") << "getOperand(" << First @@ -206,6 +212,9 @@ void PredicateExpander::expandPredicate(formatted_raw_ostream &OS, return expandCheckRegOperand(OS, Rec->getValueAsInt("OpIndex"), Rec->getValueAsDef("Reg")); + if (Rec->isSubClassOf("CheckInvalidRegOperand")) + return expandCheckInvalidRegOperand(OS, Rec->getValueAsInt("OpIndex")); + if (Rec->isSubClassOf("CheckImmOperand")) return expandCheckImmOperand(OS, Rec->getValueAsInt("OpIndex"), Rec->getValueAsInt("ImmVal")); diff --git a/llvm/utils/TableGen/PredicateExpander.h b/llvm/utils/TableGen/PredicateExpander.h index bc4de902fcc..398b376f7a8 100644 --- a/llvm/utils/TableGen/PredicateExpander.h +++ b/llvm/utils/TableGen/PredicateExpander.h @@ -73,6 +73,7 @@ public: StringRef MethodName); void expandCheckIsRegOperand(formatted_raw_ostream &OS, int OpIndex); void expandCheckIsImmOperand(formatted_raw_ostream &OS, int OpIndex); + void expandCheckInvalidRegOperand(formatted_raw_ostream &OS, int OpIndex); void expandCheckFunctionPredicate(formatted_raw_ostream &OS, StringRef MCInstFn, StringRef MachineInstrFn); |
