to emit target-specific things at the beginning of the asm output.  This
fixes a problem for PPC, where the text sections are not being kept together
as expected.  The base class doInitialization code calls DW->BeginModule()
which emits a bunch of DWARF section directives.  The PPC doInitialization
code then emits all the TEXT section directives, with the intention that they
will be kept together. But as I understand it, the Darwin assembler treats
the default TEXT section as a special case and moves it to the beginning of
the file, which means that all those DWARF sections are in the middle of
the text.  With this change, the EmitStartOfAsmFile hook is called before
the DWARF section directives are emitted, so that all the PPC text section
directives come out right at the beginning of the file.

llvm-svn: 83176

overload candidates (but not the built-in ones). We still rely on the
underlying built-in semantic analysis to produce the initial
diagnostic, then print the candidates following that diagnostic. 

One side advantage of this approach is that we can perform more validation
of C++'s operator overloading with built-in candidates vs. the
semantic analysis for those built-in operators: when there are no
viable candidates, we know to expect an error from the built-in
operator handling code. Otherwise, we are not modeling the built-in
semantics properly within operator overloading. This is checked as:

      assert(Result.isInvalid() && 
             "C++ binary operator overloading is missing
             candidates!");
      if (Result.isInvalid())
        PrintOverloadCandidates(CandidateSet, /*OnlyViable=*/false);

The assert() catches cases where we're wrong in a +Asserts build. The
"if" makes sure that, if this happens in a production clang
(-Asserts), we still build the proper built-in operator and continue
on our merry way. This is effectively what happened before this
change, but we've added the assert() to catch more flies.

llvm-svn: 83175

llvm-svn: 83174

llvm-svn: 83173

llvm-svn: 83172

llvm-svn: 83171

for derived AsmPrinters to add another one.  In some cases, fixing this
removes the need to override the doInitialization method.

llvm-svn: 83170

a bad initializer. Fixes pr4274.

llvm-svn: 83169

llvm-svn: 83168

while calling changeImmediateDominator, which removes elements from the
vector. This fixes PR5097.

llvm-svn: 83166

Add an error for function parameters that have a qualified address space since this is not allowed by the embedded c extension spec.

llvm-svn: 83165

llvm-svn: 83164

llvm-svn: 83163

llvm-svn: 83162

llvm-svn: 83161

llvm-svn: 83160

basic blocks that are so long that their size overflows a short.

Also assert that overflow does not happen in the future, as requested by Evan.

This fixes PR4401.

llvm-svn: 83159

llvm-svn: 83158

llvm-svn: 83157

llvm-svn: 83153

llvm-svn: 83151

<rdar://problem/7263113> Make clang produce gcc's objc_assign_StrongCast as a result of type-cast of an ivar in assignment.

llvm-svn: 83150

llvm-svn: 83149

llvm-svn: 83148

llvm-svn: 83145

llvm-svn: 83144

llvm-svn: 83143

llvm-svn: 83142

By the way, this code is buggy. You can't keep a map<MDNode *, something>
because the MDNode may be destroyed and reused for something else.

llvm-svn: 83141

scheme, we can switch the previous scheme over to using this code
path.  There's a bit of simplifications yet to do as well.

llvm-svn: 83138

per customary usage

llvm-svn: 83137

the size of the saved frame pointer needs to be taken into account.

llvm-svn: 83136

Patch by Sylvere Teissier.

llvm-svn: 83135

unbounded chains of operator-> delegations.

llvm-svn: 83134

to strike fear into the hearts of CPUs everywhere.

llvm-svn: 83133

llvm-svn: 83132

llvm-svn: 83128

section directives.  This causes the assembler to put the text sections at
the beginning of the object file, which helps work around a limitation of the
Darwin ARM relocations.  Radar 7255355.

llvm-svn: 83127

infinit recursion. This patch fixes it. [13.3.1.2]-p2

llvm-svn: 83124

llvm-svn: 83123