Clang 3.6.0 for ARMv7 failure

Hi,

every couple of days I rebase to the head of the -current and this time
I encountered a problem during toolchain build related probably to the
recent compiler changes. As I am mainly interested in building kernel I
just switched to kernel-toolchain which worked fine for me, but anyway,
this looks like a wider problem. Maybe I am missing some transition
option - previous builds were fine - if so I would be happy to hear any
pointers to fix it locally.

Below is the error report.

Thank you,
Jakub Palider

Unexpected member type for HA
UNREACHABLE executed
at /root/jpa/anpa-fbsd/lib/clang/libllvmarmcodegen/../../../contrib/llvm/lib/Target/ARM/ARMCallingConv.h:209!


Stack dump:
0.	Program
arguments: /home/jpa/anpa-build/arm.arm/root/jpa/anpa-fbsd/tmp/usr/bin/cc -cc1 -triple armv6--freebsd11.0-gnueabi -emit-obj -disable-free -main-file-name b_tgamma.c -mrelocation-model pic -pic-level 1 -mthread-model posix -mdisable-fp-elim -masm-verbose -mconstructor-aliases -target-cpu arm1176jzf-s -target-feature +soft-float -target-feature +soft-float-abi -target-feature -neon -target-feature -crypto -target-abi aapcs-linux -msoft-float -mfloat-abi soft -dwarf-column-info -coverage-file /home/jpa/anpa-build/arm.arm/root/jpa/anpa-fbsd/lib/msun/b_tgamma.So -resource-dir /home/jpa/anpa-build/arm.arm/root/jpa/anpa-fbsd/tmp/usr/bin/../lib/clang/3.6.0 -D PIC -D ARM_ARCH_6=1 -I /home/jpa/anpa-fbsd/lib/msun/src -I /home/jpa/anpa-fbsd/lib/msun/../libc/include -I /home/jpa/anpa-fbsd/lib/msun/../libc/arm -isysroot /home/jpa/anpa-build/arm.arm/root/jpa/anpa-fbsd/tmp -O2 -Wsystem-headers -Werror -Wno-pointer-sign -Wno-unknown-pragmas -Wno-empty-body -Wno-string-plus-int -Wno-unused-const-variable -Wno-tautological-compare -Wno-unused-value -Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion -Wno-unused-local-typedef -Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter -Wno-parentheses -std=gnu99 -fdebug-compilation-dir /home/jpa/anpa-build/arm.arm/root/jpa/anpa-fbsd/lib/msun -ferror-limit 19 -fmessage-length 0 -mstackrealign -fno-signed-char -fobjc-runtime=gnustep -fdiagnostics-show-option -vectorize-loops -vectorize-slp -o b_tgamma.So -x c /home/jpa/anpa-fbsd/lib/msun/bsdsrc/b_tgamma.c