Douglas Gregor 9a28e84b32 Keep an explicit stack of function and block scopes, each element of ... which has the label map, switch statement stack, etc. Previously, we had a single set of maps in Sema (for the function) along with a stack of block scopes. However, this lead to funky behavior with nested functions, e.g., in the member functions of local classes. The explicit-stack approach is far cleaner, and we retain a 1-element cache so that we're not malloc/free'ing every time we enter a function. Fixes PR6382. Also, tweaked the unused-variable warning suppression logic to look at errors within a given Scope rather than within a given function. The prior code wasn't looking at the right number-of-errors count when dealing with blocks, since the block's count would be deallocated before we got to ActOnPopScope. This approach works with nested blocks/functions, and gives tighter error recovery. llvm-svn: 97518		2010-03-01 23:15:13 +00:00
clang	Keep an explicit stack of function and block scopes, each element of	2010-03-01 23:15:13 +00:00
compiler-rt	add __sync_synchronize. Needed by compiler when emitting thumb1 with -fno-builtin	2010-02-02 21:34:04 +00:00
llvm	fixme resolved.	2010-03-01 23:08:51 +00:00