PCH support for return statements.
Optimize PCH encoding for switch-case statements slightly, by making
the switch-case numbering local to a particular statement.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69355 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index d2fb8ab..0dcdf8d 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -256,6 +256,7 @@
unsigned VisitForStmt(ForStmt *S);
unsigned VisitContinueStmt(ContinueStmt *S);
unsigned VisitBreakStmt(BreakStmt *S);
+ unsigned VisitReturnStmt(ReturnStmt *S);
unsigned VisitExpr(Expr *E);
unsigned VisitPredefinedExpr(PredefinedExpr *E);
unsigned VisitDeclRefExpr(DeclRefExpr *E);
@@ -398,6 +399,13 @@
return 0;
}
+unsigned PCHStmtReader::VisitReturnStmt(ReturnStmt *S) {
+ VisitStmt(S);
+ S->setRetValue(cast_or_null<Expr>(StmtStack.back()));
+ S->setReturnLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
+ return 1;
+}
+
unsigned PCHStmtReader::VisitExpr(Expr *E) {
VisitStmt(E);
E->setType(Reader.GetType(Record[Idx++]));
@@ -2172,6 +2180,10 @@
S = new (Context) BreakStmt(Empty);
break;
+ case pch::STMT_RETURN:
+ S = new (Context) ReturnStmt(Empty);
+ break;
+
case pch::EXPR_PREDEFINED:
// FIXME: untested (until we can serialize function bodies).
S = new (Context) PredefinedExpr(Empty);
@@ -2311,6 +2323,7 @@
StmtStack.push_back(S);
}
assert(StmtStack.size() == 1 && "Extra expressions on stack!");
+ SwitchCaseStmts.clear();
return StmtStack.back();
}