round trip blockaddress through .ll and .bc files, so add a testcase.
There are still a bunch of places in the optimizer and other places
that need to be updated to work with these constructs, but at least
the basics are in now.
llvm-svn: 85377
In the new world order, BlockAddress can have a BasicBlock operand.
This doesn't permute much, because if you have a ConstantExpr (or
anything more specific than Constant) we still know the operand has
to be a Constant.
llvm-svn: 85375
$ llvm-as foo.ll -d -disable-output
which reads and prints the .ll file. BC encoding is the
next project. Testcase will go in once that works.
llvm-svn: 85368
eliminating a use of MVT::Flag, this is needed for an upcoming CodeGen
change.
This unfortunately requires SystemZ to switch to the list-burr
scheduler, in order to handle the physreg defs properly, however
that's what LLVM has available at this time.
llvm-svn: 85357
explicit-instantiation-declaration-after-explicit-instantiation-definition
errors. This wraps up explicit template instantiation for now.
llvm-svn: 85347
use it to control tail merging when there is a tradeoff between performance
and code size. When there is only 1 instruction in the common tail, we have
been merging. That can be good for code size but is a definite loss for
performance. Now we will avoid tail merging in that case when the
optimization level is "Aggressive", i.e., "-O3". Radar 7338114.
Since the IfConversion pass invokes BranchFolding, it too needs to know
the optimization level. Note that I removed the RegisterPass instantiation
for IfConversion because it required a default constructor. If someone
wants to keep that for some reason, we can add a default constructor with
a hard-wired optimization level.
llvm-svn: 85346
inlined functions. For example, given
template<typename T>
class string {
unsigned Len;
public:
unsigned size() const { return Len; }
};
extern template class string<char>;
we now give the instantiation of string<char>::size
available_externally linkage (if it is ever instantiated!), as
permitted by the C++0x standard.
llvm-svn: 85340
side-effects up front, as when we switch to the llvm intrinsic call
for __builtin_object_size later, it will have two evaluations.
We also finish off the intrinsic version of the code so we can just
turn it on once llvm has the intrinsic.
llvm-svn: 85324
Chris Lattner