Compiling 3rdparty/bgfx/src/bgfx.cpp...
clang++    -MMD -MP -MP -DNDEBUG -DCRLF=2 -DLSB_FIRST -DFLAC__NO_DLL -DPUGIXML_HEADER_ONLY -DMAME_NOASM -DLUA_COMPAT_ALL -DLUA_COMPAT_5_1 -DLUA_COMPAT_5_2 -D__STDC_LIMIT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_CONSTANT_MACROS -DBGFX_CONFIG_MAX_FRAME_BUFFERS=128 -DIMGUI_DISABLE_OBSOLETE_FUNCTIONS -I"../../../../../3rdparty/bgfx/include" -I"../../../../../3rdparty/bgfx/3rdparty" -I"../../../../../3rdparty/bx/include" -I"../../../../../3rdparty/bimg/include" -I"../../../../../3rdparty/bgfx/3rdparty/dxsdk/include" -I"../../../../../3rdparty/bgfx/3rdparty/khronos" -I"../../../../../3rdparty/bx/include/compat/osx"  -m32 -pipe -Werror -O3 -fno-strict-aliasing -Wno-unknown-pragmas -Wall -Wcast-align -Wundef -Wformat-security -Wwrite-strings -Wno-sign-compare -Wno-conversion -Wno-error=deprecated-declarations -Wno-cast-align -Wno-tautological-compare -Wno-unused-value -Wno-constant-logical-operand -fdiagnostics-show-note-include-stack -Wno-unknown-warning-option -Wno-extern-c-compat -Wno-unknown-attributes -Wno-ignored-qualifiers -Wno-pragma-pack -m32 -Wno-uninitialized -Wno-unused-function -Wno-unused-variable -Wno-unused-but-set-variable -Wno-format-extra-args -Wno-switch -x objective-c++ -std=c++14 -Woverloaded-virtual -Wno-unknown-pragmas  -o "../../../../osx_clang/obj/x32/Release/3rdparty/bgfx/src/bgfx.o" -c "../../../../../3rdparty/bgfx/src/bgfx.cpp"
fatal error: error in backend: Cannot select: 0x1221d2220: ch,glue =
      ARMISD::CALL 0x121e1d0d0, 0x12221a038, Register:i32 $r0,
      RegisterMask:Untyped, 0x121e1d0d0:1
  0x12221a038: i32,ch = load<(non-temporal dereferenceable invariant load 4 from got)> 0x120f4bc28, 0x1221f7498, undef:i32
    0x1221f7498: i32 = ARMISD::WrapperPIC TargetGlobalTLSAddress:i32<i32* @_ZN4bgfxL13s_threadIndexE> 0 [TF=128]
      0x122186a98: i32 = TargetGlobalTLSAddress<i32* @_ZN4bgfxL13s_threadIndexE> 0 [TF=128]
    0x1221860d8: i32 = undef
  0x121dbb1a0: i32 = Register $r0
  0x121e4d4f0: Untyped = RegisterMask
  0x121e1d0d0: ch,glue = CopyToReg 0x12221a038:1, Register:i32 $r0, 0x1221f7498
    0x121dbb1a0: i32 = Register $r0
    0x1221f7498: i32 = ARMISD::WrapperPIC TargetGlobalTLSAddress:i32<i32* @_ZN4bgfxL13s_threadIndexE> 0 [TF=128]
      0x122186a98: i32 = TargetGlobalTLSAddress<i32* @_ZN4bgfxL13s_threadIndexE> 0 [TF=128]
In function: _ZN4bgfx11renderFrameEi
clang: error: clang frontend command failed with exit code 70 (use -v to see invocation)
Apple clang version 12.0.0 (clang-1200.0.32.4)
Target: arm-apple-darwin20.1.0
Thread model: posix
InstalledDir: /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
clang: note: diagnostic msg: PLEASE submit a bug report to http://developer.apple.com/bugreporter/ and include the crash backtrace, preprocessed source, and associated run script.
clang: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /var/folders/zw/2syqkbg97rl2dv5y1n7_rszc0000gn/T/bgfx-b5b22a.mm
clang: note: diagnostic msg: /var/folders/zw/2syqkbg97rl2dv5y1n7_rszc0000gn/T/bgfx-b5b22a.sh
clang: note: diagnostic msg: Crash backtrace is located in
clang: note: diagnostic msg: /Users/dtk/Library/Logs/DiagnosticReports/clang_<YYYY-MM-DD-HHMMSS>_<hostname>.crash
clang: note: diagnostic msg: (choose the .crash file that corresponds to your crash)
clang: note: diagnostic msg:

********************
make[2]: *** [../../../../osx_clang/obj/x32/Release/3rdparty/bgfx/src/bgfx.o] Error 70
make[1]: *** [bgfx] Error 2
make: *** [macosx_x86_clang] Error 2