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[TableGen] fix assert in !cast when used out of definition in a multiclass 

Differential Revision: https://reviews.llvm.org/D53068

llvm-svn: 344134
This commit is contained in:
Valery Pykhtin 2018-10-10 10:52:57 +00:00
parent aeb4b3e632
commit 52391ea0b3
2 changed files with 25 additions and 0 deletions
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2
llvm/lib/TableGen/Record.cpp
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@ -709,6 +709,8 @@ Init *UnOpInit::Fold(Record *CurRec, bool IsFinal) const {
return StringInit::get(LHSi->getAsString()); return StringInit::get(LHSi->getAsString());
} else if (isa<RecordRecTy>(getType())) { } else if (isa<RecordRecTy>(getType())) {
if (StringInit *Name = dyn_cast<StringInit>(LHS)) { if (StringInit *Name = dyn_cast<StringInit>(LHS)) {
if (!CurRec && !IsFinal)
break;
assert(CurRec && "NULL pointer"); assert(CurRec && "NULL pointer");
Record *D; Record *D;

23
llvm/test/TableGen/cast-multiclass.td Normal file
View File

@ -0,0 +1,23 @@
// RUN: llvm-tblgen %s | FileCheck %s
class AClass<bit C> {
bit Cond = C;
}
def A0: AClass<0>;
def A1: AClass<1>;
class BoolToList<bit Value> {
list<int> ret = !if(Value, [1]<int>, []<int>);
}
multiclass P<string AStr> {
foreach i = BoolToList<!cast<AClass>(AStr).Cond>.ret in
def SubDef;
}
// CHECK-NOT: def XSubDef
defm X : P<"A0">;
// CHECK: def YSubDef
defm Y : P<"A1">;