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9 Commits

Author SHA1 Message Date
Sam Clegg 9d24fb7ff3 [WebAssembly] Use __stack_pointer global when writing wasm binary 
This ensures that symbolic relocations are generated for stack
pointer manipulations.

These relocations are of type R_WEBASSEMBLY_GLOBAL_INDEX_LEB.
This change also adds support for reading relocations of this
type in WasmObjectFile.cpp.

Since its a globally imported symbol this does mean that
the get_global/set_global instruction won't be valid until
the objects are linked that global used in no longer an
imported global.

Differential Revision: https://reviews.llvm.org/D34172

llvm-svn: 305616
 2017-06-16 23:59:10 +00:00
Dan Gohman 82607f56bd [WebAssembly] Add support for using a wasm global for the stack pointer. 
This replaces the __stack_pointer variable which was allocated in linear
memory.

llvm-svn: 296201
 2017-02-24 23:46:05 +00:00
Rafael Espindola d1294d9bb3 Clear the stub map in getSortedStubs. 
This makes sure they are only output once (and frees a bit of memory).

llvm-svn: 234313
 2015-04-07 12:59:28 +00:00
Craig Topper 2a6a08b1cd Rename virtual table anchors from Anchor() to anchor() for consistency with the rest of the tree. 
llvm-svn: 164666
 2012-09-26 06:36:36 +00:00
Bill Wendling a810bdfcca Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that 
indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.

llvm-svn: 98199
 2010-03-10 22:34:10 +00:00
Anton Korobeynikov ae4ccc10da Preliminary patch to improve dwarf EH generation - Hooks to return Personality / FDE / LSDA / TType encoding depending on target / options (e.g. code model / relocation model) - MCIzation of Dwarf EH printer to use encoding information - Stub generation for ELF target (needed for indirect references) - Some other small changes here and there 
llvm-svn: 96285
 2010-02-15 22:35:59 +00:00
Chris Lattner 082f484074 make MachineModuleInfoMachO hold non-const MCSymbol*'s instead 
of const ones.  non-const ones aren't very useful, because you can't
even, say, emit them.

llvm-svn: 95205
 2010-02-03 06:18:30 +00:00
Benjamin Kramer 6f3d4e900b Don't sort the vector when it is empty. This should fix some expensive checking 
failures.

llvm-svn: 82040
 2009-09-16 11:43:12 +00:00
Chris Lattner f3f54ffc89 add a new MachineModuleInfoMachO class, which is the per-module 
stuff common across all macho targets.

llvm-svn: 82018
 2009-09-16 06:03:48 +00:00