misched is disabled by default. With -enable-misched, these heuristics
balance the schedule to simultaneously avoid saturating processor
resources, expose ILP, and minimize register pressure. I've been
analyzing the performance of these heuristics on everything in the
llvm test suite in addition to a few other benchmarks. I would like
each heuristic check to be verified by a unit test, but I'm still
trying to figure out the best way to do that. The heuristics are still
in considerable flux, but as they are refined we should be rigorous
about unit testing the improvements.
llvm-svn: 167527
updating an abstract DIE or not. If we are, then we use that. Its children will
be added on later, as well as the object pointer attribute. Otherwise, this
function may be called with a concrete DIE twice and adding the children and
object pointer attribute to it twice.
<rdar://problem/12401423&12600340>
llvm-svn: 167524
x/9i
we actually calculated the size of 9 instructions. Then we multiplied it by the count again
to get the total amount we should fetch, so we thought 9 x86_64 instructions took over 1K
to fetch...
<rdar://problem/12649027>
llvm-svn: 167520
Also fixed a bug where the Objective-C runtime
would not properly report that it found a class if
(a) it had to build the ObjCInterfaceDecl for the
class and (b) logging was enabled.
<rdar://problem/12641180>
llvm-svn: 167516
instantiate it if it can be instantiated and implicitly define it if it can be
implicitly defined. This matches g++'s approach. Remove some cases from
SemaOverload which were marking functions as referenced when just planning how
overload resolution would proceed; such cases are not actually references.
llvm-svn: 167514
Spent longer than reasonable looking for a nice way to test this & decided to
give up for now. Open to suggestions/requests. Richard Smith suggested adding
something to ASTMatchers but it wasn't readily apparent how to test this with
that.
llvm-svn: 167507
This is useful because unnamed bitfields can have effects on the
offsets which are not otherwise reflected in the DWARF information.
<rdar://problem/12629719>
llvm-svn: 167503
registers. Previously, the register we being marked as implicitly defined, but
not killed. In some cases this would cause the register scavenger to spill a
dead register.
Also, use an empty register mask to simplify the logic and to reduce the memory
footprint.
rdar://12592448
llvm-svn: 167499
register masks. This is an obvious and necessary fix for a soon to be committed
patch. No test case possible at this time. Reviewed by Jakob.
llvm-svn: 167498
Amara Emerson