Part 2 of 3: Moving tools/llvm to pnacl/

tools/llvm/unsupported/non_bitcode_symbols.txt

Index: tools/llvm/unsupported/non_bitcode_symbols.txt
===================================================================
--- tools/llvm/unsupported/non_bitcode_symbols.txt	(revision 7025)
+++ tools/llvm/unsupported/non_bitcode_symbols.txt	(working copy)
@@ -1,122 +0,0 @@
-# NOTE: this is a machine readable list of symbols that can legally be used
-#       by bitcode without being defined by bitcode because they are
-#       * linker-defined
-#       * provided by native libraries
-#       * known to ALL llc backends
-#       Empty lines and lines starting with '#' are ignored
-#
-# One way to use this list and check a bunch of pexes is:
-#
-# for i in  scons-out/nacl-x86-64-pnacl/obj/tests/*/*pexe  ; do
-# echo $i
-# toolchain/pnacl_linux_x86_64/arm-none-linux-gnueabi/bin/llvm-ld \
-#   -o xxx $i   --nacl-abi-check   --nacl-legal-undefs \
-#   tools/llvm/non_bitcode_symbols.txt
-#
-#  done
-#
-######################################################################
-
-# llvm buitins
-# TODO(robertm): there are likely a few more missing
-llvm.memcpy.p0i8.p0i8.i32
-llvm.memset.p0i8.i32
-llvm.memset.p0i8.i64
-llvm.memmove.p0i8.p0i8.i32
-
-llvm.memory.barrier
-llvm.atomic.cmp.swap.i32.p0i32
-llvm.atomic.load.add.i32.p0i32
-
-# used to abstract away exception handling
-llvm.eh.exception
-llvm.eh.selector
-llvm.eh.typeid.for
-
-llvm.flt.rounds
-
-# unwind related
-llvm.returnaddress
-llvm.eh.dwarf.cfa
-
-# TODO(robertm): ????
-llvm.stackrestore
-llvm.stacksave
-
-# for example stores to zero addresses get optimized to this
-llvm.trap
-
-# TODO(robertm): ???? try to eliminate this
-llvm.uadd.with.overflow.i32
-
-# va_list intrinsics
-llvm.va_end
-llvm.va_start
-
-# linkerdefined symbols
-__fini_array_end
-__fini_array_start
-__init_array_end
-__init_array_start
-__preinit_array_end
-__preinit_array_start
-__tls_template_end
-__tls_template_start
-__tls_template_tdata_end
-
-# currently provided by libgcc_eh and referenced by our startup code
-# Could be replaced by dummies when exceptions are not used
-__deregister_frame_info
-__register_frame_info
-
-# these are most of the remaining functions provided by libgcc_eh
-_Unwind_DeleteException
-_Unwind_GetDataRelBase
-_Unwind_GetIP
-_Unwind_GetLanguageSpecificData
-_Unwind_GetRegionStart
-_Unwind_GetTextRelBase
-_Unwind_PNaClSetResult0
-_Unwind_PNaClSetResult1
-_Unwind_RaiseException
-_Unwind_Resume_or_Rethrow
-_Unwind_SetIP
-_Unwind_Backtrace
-_Unwind_GetCFA
-
-# tls related intrinsics
-# TODO(sehr): maybe mark them as intrinsics
-__nacl_tdb_effective_payload_size
-__nacl_tdb_offset_in_tls
-__nacl_tls_aligment
-
-# misc
-__nacl_return_address_size
-
-# setjmp/longjmp
-# TODO(robertm): determine whether these are intrinsics or function calls
-longjmp
-setjmp
-
-# math
-# these may occur even if they not really used because of the
-# tools/llvm/llvm-preserve.ll magic
-# c.f.: http://code.google.com/p/nativeclient/issues/detail?id=842
-cos
-cosf
-pow
-powf
-sin
-sinf
-sqrt
-sqrtf
-fabs
-
-# a weak symbol declared in: src/untrusted/pthread/nc_thread.c
-__thread_exit_hook
-
-# these need to be investigated:
-memmove
-llvm.sqrt.f64
-llvm.sqrt.f32
-