Track the result of evaluating a computed noexcept specification on the
FunctionProtoType.
We previously re-evaluated the expression each time we wanted to know whether
the type is noexcept or not. We now evaluate the expression exactly once.
This is not quite "no functional change": it fixes a crasher bug during AST
deserialization where we would try to evaluate the noexcept specification in a
situation where we have not deserialized sufficient portions of the AST to
permit such evaluation.
llvm-svn: 331428
diff --git a/clang/lib/Serialization/ASTReader.cpp b/clang/lib/Serialization/ASTReader.cpp
index 4b0220a..19c2de3 100644
--- a/clang/lib/Serialization/ASTReader.cpp
+++ b/clang/lib/Serialization/ASTReader.cpp
@@ -6392,7 +6392,7 @@
for (unsigned I = 0, N = Record[Idx++]; I != N; ++I)
Exceptions.push_back(readType(ModuleFile, Record, Idx));
ESI.Exceptions = Exceptions;
- } else if (EST == EST_ComputedNoexcept) {
+ } else if (isComputedNoexcept(EST)) {
ESI.NoexceptExpr = ReadExpr(ModuleFile);
} else if (EST == EST_Uninstantiated) {
ESI.SourceDecl = ReadDeclAs<FunctionDecl>(ModuleFile, Record, Idx);