It looks like we've finished off matching of class template partial specializations; add comments and update the C++ status page

llvm-svn: 73263

llvm-svn: 73262

llvm-svn: 73261

llvm-svn: 73260

specialization's arguments are identical to the implicit template
arguments of the primary template. Typically, this is meant to be a
declaration/definition of the primary template, so we give that
advice.

llvm-svn: 73259

llvm-svn: 73258

llvm-svn: 73257

llvm-svn: 73256

If killed register is defined by implicit_def, do not clear it since it's live range may overlap another def of same register.

llvm-svn: 73255

template partial specializations.

llvm-svn: 73254

non-default addrspaces.

llvm-svn: 73253

llvm-svn: 73252

llvm-svn: 73251

llvm-svn: 73250

llvm-svn: 73249

llvm-svn: 73247

Document noredzone and noimplicitfloat function attributes.

llvm-svn: 73246

specialization do not have default arguments 
(C++ [temp.class.spec]p10). 

llvm-svn: 73245

llvm-svn: 73244

it may round differently. This fixes PR4374.

llvm-svn: 73243

Update the C++ status to reflect improvements in template argument deduction and the handling of class template partial specializations

llvm-svn: 73242

the relationship with MergeFunctions.cpp's isEquivalentOperation,
and make a trivial code reordering so that the two functions are
easier to compare.

Fix the name of Instruction::isSameOperationAs in MergeFunction.cpp's
isEquivalentOperation's comment, and fix a nearby 80-column violation.

llvm-svn: 73241

llvm-svn: 73240

llvm-svn: 73239

argument deduction failed. For example, given

  template<typename T> struct is_same<T, T> { ... };

template argument deduction will fail for is_same<int, float>, and now
reports enough information

Right now, we don't do anything with this extra information, but it
can be used for informative diagnostics that say, e.g., "template
argument deduction failed because T was deduced to 'int' in one
context and 'float' in another".

llvm-svn: 73237

llvm-svn: 73236

llvm-svn: 73235

It's an error to use a function declared in a class definition as a default argument before the function has been declared.

llvm-svn: 73234

out of sync with regular cc.

The only difference between the tail call cc and the normal
cc was that one parameter register - R9 - was reserved for
calling functions through a function pointer. After time the
tail call cc has gotten out of sync with the regular cc. 

We can use R11 which is also caller saved but not used as
parameter register for potential function pointers and
remove the special tail call cc on x86-64.

llvm-svn: 73233

llvm-svn: 73232

llvm-svn: 73231

thunks.

llvm-svn: 73230

Patch by Edward O'Callaghan.

llvm-svn: 73228

another thread.

llvm-svn: 73227

either one call the other since either one can be replaced at link time, and
they need to be independent.

llvm-svn: 73225

Patch by Edward O'Callaghan.

llvm-svn: 73224

llvm-svn: 73223

points to while analyzing all other fields.

Use FoldingSetNodeID to produce a good hash. This dramatically decreases run
times.

Emit thunks. This means that it can look at all functions regardless of what
the linkage is or if the address is taken, but unfortunately some small
functions can be even shorter than the thunk because our backend doesn't yet
realize it can just turn these into jumps. This means that this pass will
pessimize code on average.

llvm-svn: 73222

llvm-svn: 73221

since functions may contain aggregate constants too.

llvm-svn: 73220