[compiler-rt] [builtins] Include GENERIC_SOURCES in arm_SOURCES for MinGW

[mstorsjo]

Summary

It is included in the built sources for all other arches supported for MinGW currently, except for arm.

[beanz]

Looks reasonable to me

[thakis]

compiler-rt/trunk/lib/builtins/CMakeLists.txt

422

Now that you've added GENERIC_SOURCES here, you can remove most of the files above since all that aren't in arm/ are in GENERIC_SOURCES (except for mingw_fixfloat.c): Linux 404-422 (excluding line 416) can be deleted.

compiler-rt/trunk/lib/builtins/CMakeLists.txt

set(arm_SOURCES
       floatundidf.c
       floatundisf.c
       mingw_fixfloat.c
       moddi3.c
       udivmoddi4.c
       udivmodsi4.c
       udivsi3.c
       umoddi3.c
       emutls.c)
+  filter_builtin_sources(arm_SOURCES EXCLUDE arm_SOURCES "${arm_SOURCES};${GENERIC_SOURCES}")
 elseif(NOT WIN32)
   # TODO the EABI sources should only be added to EABI targets
   set(arm_SOURCES
     ${arm_SOURCES}
     ${arm_EABI_SOURCES}
     ${arm_Thumb1_SOURCES})
 
   set(thumb1_SOURCES