When evaluating a VarDecl as a constant or determining whether it is
an integral constant expression, maintain a cache of the value and the
is-an-ICE flag within the VarDecl itself. This eliminates
exponential-time behavior of the Fibonacci template metaprogram.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72428 91177308-0d34-0410-b5e6-96231b3b80d8
8 files changed