llvm-svn: 77138

llvm-svn: 77137

llvm-svn: 77134

1. Spell SectionFlags::Writeable as "Writable".
2. Add predicates for deriving SectionFlags from SectionKinds.
3. Sink ELF-specific getSectionPrefixForUniqueGlobal impl into
   ELFTargetAsmInfo.
4. Fix SectionFlagsForGlobal to know that BSS/ThreadBSS has the
   BSS bit set (the real fix for PR4619).
5. Fix isSuitableForBSS to not put globals with explicit sections
   set in BSS (which was the reason #4 wasn't fixed earlier).
6. Remove my previous hack for PR4619.

llvm-svn: 77085

a new getSectionForMergableConstant hook.  This removes one dependence
of TAI on Type, and provides the hook with enough info to make the 
right decision based on whether the global has relocations etc.

llvm-svn: 76705

global declared symbols are initialized with references from other global
symbols.

llvm-svn: 76540

are referenced, ignore the relocation entry and patch the relocatable field with
the computed symbol offset directly

llvm-svn: 76414

Use R_X86_64_32S to handle Jump Table Index relocation entries. Hide TAI usage inside getSection* functions

llvm-svn: 76347

Use proper relocation type to build relocations for JumpTables (rodata
sections).

llvm-svn: 76326

revert one of the loops to use indicies over iterators because there are vector insertions inside the loop

llvm-svn: 76195

llvm-svn: 75898

we care more about random access than insertion/deletion of elements.

llvm-svn: 75828

additional bug fixes:

1. The bug that everyone hit was a problem in the asmprinter where it
   would remove $stub but keep the L prefix on a name when emitting the
   indirect symbol.  This is easy to fix by keeping the name of the stub
   and the name of the symbol in a StringMap instead of just keeping a
   StringSet and trying to reconstruct it late.

2. There was a problem printing the personality function.  The current
   logic to print out the personality function from the DWARF information
   is a bit of a cesspool right now that duplicates a bunch of other 
   logic in the asm printer.  The short version of it is that it depends
   on emitting both the L and _ prefix for symbols (at least on darwin)
   and until I can untangle it, it is best to switch the mangler back to
   emitting both prefixes.

llvm-svn: 75646

This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640

--- Reverse-merging r75619 into '.':
U    lib/Target/DarwinTargetAsmInfo.cpp
U    lib/CodeGen/AsmPrinter/AsmPrinter.cpp
--- Reverse-merging r75618 into '.':
U    lib/CodeGen/ELFWriter.cpp
U    lib/CodeGen/MachOCodeEmitter.cpp
U    lib/CodeGen/MachOWriter.cpp
--- Reverse-merging r75617 into '.':
U    lib/Target/CBackend/CBackend.cpp
--- Reverse-merging r75616 into '.':
U    tools/bugpoint/Miscompilation.cpp
U    tools/lto/LTOCodeGenerator.cpp
U    tools/lto/LTOModule.cpp

llvm-svn: 75638

llvm-svn: 75618

llvm-svn: 75537

Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379

llvm-svn: 74821

cleanup, removed some #includes and moved Object Code Emitter out-of-line.

llvm-svn: 74813

llvm-svn: 74760

llvm-svn: 74718

Add section symbols to the symbol table

llvm-svn: 74170

Only pad when the section size > 0 and move the code that deals
with globals initializers to a place we know for sure the global
is initialized.

llvm-svn: 73944

llvm-svn: 73895

Support for .text relocations, implementing TargetELFWriter overloaded methods for x86/x86_64.
Use a map to track global values to their symbol table indexes
Code cleanup and small fixes

llvm-svn: 73894

Introduce new BinaryObject (blob) class, ELF Writer modified to use it. BinaryObject.h by Aaron Gray

llvm-svn: 73333

Emission for globals, using the correct data sections
Function alignment can be computed for each target using TargetELFWriterInfo
Some small fixes

llvm-svn: 73201

llvm-svn: 73040

relocation sections.

llvm-svn: 73038

llvm-svn: 72982

llvm-svn: 72785

will make it more obvious what it represents, and stop
it being confused with the StoreSize.

llvm-svn: 71349

and extern_weak_odr.  These are the same as the non-odr versions,
except that they indicate that the global will only be overridden
by an *equivalent* global.  In C, a function with weak linkage can
be overridden by a function which behaves completely differently.
This means that IP passes have to skip weak functions, since any
deductions made from the function definition might be wrong, since
the definition could be replaced by something completely different
at link time.   This is not allowed in C++, thanks to the ODR
(One-Definition-Rule): if a function is replaced by another at
link-time, then the new function must be the same as the original
function.  If a language knows that a function or other global can
only be overridden by an equivalent global, it can give it the
weak_odr linkage type, and the optimizers will understand that it
is alright to make deductions based on the function body.  The
code generators on the other hand map weak and weak_odr linkage
to the same thing.

llvm-svn: 66339

that has not been JIT'd yet, the callee is put on a list of pending functions
to JIT.  The call is directed through a stub, which is updated with the address
of the function after it has been JIT'd.  A new interface for allocating and
updating empty stubs is provided.

Add support for removing the ModuleProvider the JIT was created with, which
would otherwise invalidate the JIT's PassManager, which is initialized with the
ModuleProvider's Module.

Add support under a new ExecutionEngine flag for emitting the infomration 
necessary to update Function and GlobalVariable stubs after JITing them, by
recording the address of the stub and the name of the GlobalValue.  This allows
code to be copied from one address space to another, where libraries may live
at different virtual addresses, and have the stubs updated with their new
correct target addresses.

llvm-svn: 64906

llvm-svn: 62279

suggested by Chris.

llvm-svn: 62099

of the pointer to the global.

llvm-svn: 61630

llvm::PATypeHolder::get() method when LLVM is self-hosted in Release
mode. Before the parser changed, there was a definition of llvm::PAHolder::get()
in llvmAsmParser.y. This was probably a bug that no-one noticed.

Explicitly #include the Type.h file as a temporary fix for now.

llvm-svn: 61620

Fix MachineCodeEmitter to use uintptr_t instead of intptr_t. This avoids some overflow issues. Patch by Thomas Jablin.

llvm-svn: 60828