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LLVM backend for 6502
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Rafael Espindola 7e667c56cf Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". 
There are two ways one could implement hiding of linkonce_odr symbols in LTO:
* LLVM tells the linker which symbols can be hidden if not used from native
  files.
* The linker tells LLVM which symbols are not used from other object files,
  but will be put in the dso symbol table if present.

GOLD's API is the second option. It was implemented almost 1:1 in llvm by
passing the list down to internalize.

LLVM already had partial support for the first option. It is also very similar
to how ld64 handles hiding these symbols when *not* doing LTO.

This patch then
* removes the APIs for the DSO list.
* marks LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN all linkonce_odr unnamed_addr
  global values and other linkonce_odr whose address is not used.
* makes the gold plugin responsible for handling the API mismatch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193800 91177308-0d34-0410-b5e6-96231b3b80d8
2013-10-31 20:51:58 +00:00
autoconf Update so that it uses the `-V' command line option and supports Python 3.x. 2013-10-12 08:42:59 +00:00
bindings [python-bindings] Added support for getting/setting operands of values and getting the number of operands of a value. 2013-09-11 01:38:12 +00:00
cmake Remove NDBEUG from all release types compile flags. 2013-10-19 07:30:37 +00:00
docs whitespace 2013-10-31 17:18:07 +00:00
examples Add missing #include's to cctype when using isdigit/alpha/etc. 2013-10-12 00:55:57 +00:00
include Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". 2013-10-31 20:51:58 +00:00
lib Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". 2013-10-31 20:51:58 +00:00
projects Revert "Revert "Windows: Add support for unicode command lines"" 2013-10-07 01:00:07 +00:00
test Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". 2013-10-31 20:51:58 +00:00
tools Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". 2013-10-31 20:51:58 +00:00
unittests Merge CallGraph and BasicCallGraph. 2013-10-31 03:03:55 +00:00
utils Lower stackmap intrinsics directly to their target opcode in the DAG builder. 2013-10-31 17:18:24 +00:00
.arcconfig
.clang-format Add a clang-format file so that the tool can automatically detect the 2013-09-02 07:19:04 +00:00
.gitignore
CMakeLists.txt Remove 2.4 from the list of supported Python versions. 2013-10-28 21:22:23 +00:00
CODE_OWNERS.TXT Add more owners to CODE_OWNERS.TXT (Kostya Serebryany: AddressSanitizer and ThreadSanitizer; Evgeniy Stepanov: MemorySanitizer) 2013-06-27 08:47:12 +00:00
configure Update so that it uses the `-V' command line option and supports Python 3.x. 2013-10-12 08:42:59 +00:00
CREDITS.TXT Update. 2013-09-27 20:40:40 +00:00
LICENSE.TXT Be more specific and capitalize filenames. 2013-05-21 21:22:34 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile.common
Makefile.config.in Add an autoconf option for turning on -gsplit-dwarf by default 2013-06-25 01:12:25 +00:00
Makefile.rules Rules adjustments in order to build on DragonFly BSD. 2013-10-31 14:35:00 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00

README.txt 

Low Level Virtual Machine (LLVM)
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