[Bug 249527] graphics/vulkan-loader: clang 11 crashes on i386 during build

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249527

--- Comment #3 from Jan Beich <jbeich at FreeBSD.org> ---
Preprocessed source/script generated on crash is unusable:

  $ sh unknown_ext_chain_gas-c095a0.sh 2>&1 | head
  /usr/lib/clang/11.0.0/include/cet.h:45:11: error: expected absolute
expression in directive
          .p2align __PROPERTY_ALIGN
                   ^
  /usr/lib/clang/11.0.0/include/cet.h:53:11: error: expected absolute
expression in directive
          .p2align __PROPERTY_ALIGN
                   ^
  /usr/lib/clang/11.0.0/include/cet.h:54:2: error: unexpected token at start of
statement
          /* GNU_PROPERTY_X86_FEATURE_1_AND.  */
          ^
  /usr/lib/clang/11.0.0/include/cet.h:61:11: error: expected absolute
expression in directive

However, reproducing outside of ports (cross-compiling from amd64) is trivial:

 $ fetch -o "gen_defines.asm"
"https://bugs.freebsd.org/bugzilla/attachment.cgi?id=218180"
 $ fetch -o "unknown_ext_chain_gas.S"
"https://bugs.freebsd.org/bugzilla/attachment.cgi?id=218181"
 $ clang -m32 -c "unknown_ext_chain_gas.S"
 Assertion failed: (Type == RT32_32), function getRelocType32, file
/usr/src/contrib/llvm-project/llvm/lib/Target/X86/MCTargetDesc/X86ELFObjectWriter.cpp,
line 260.
 [...]

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