[Bug 196412] New: [arm] clang3.5 crashes building audio/libmad

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=196412

            Bug ID: 196412
           Summary: [arm] clang3.5 crashes building audio/libmad
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: arm
          Assignee: freebsd-arm at FreeBSD.org
          Reporter: sbruno at FreeBSD.org

root at 11-armv6-11-armv6-ports:/wrkdirs/usr/ports/audio/libmad/work/libmad-0.15.1b
# make
/nxb-bin/usr/bin/make  all-recursive
/bin/sh ./libtool --mode=compile /nxb-bin/usr/bin/cc   -O -pipe 
-fno-strict-aliasing -c -o imdct_l_arm.lo imdct_l_arm.S
 /nxb-bin/usr/bin/cc -O -pipe -fno-strict-aliasing -c imdct_l_arm.S  -fPIC
-DPIC -o .libs/imdct_l_arm.o
Unimplemented
UNREACHABLE executed at
/usr/local/poudriere/jails/11-armv6/usr/src/lib/clang/libllvmarmdesc/../../../contrib/llvm/lib/Target/ARM/MCTargetDesc/ARMELFObjectWriter.cpp:84!
Stack dump:
0.      Program arguments: /nxb-bin/usr/bin/cc -cc1as -triple
armv6--freebsd11.0-gnueabi -filetype obj -main-file-name imdct_l_arm.S
-target-cpu arm1176jzf-s -target-feature -neon -target-feature -crypto
-fdebug-compilation-dir /wrkdirs/usr/ports/audio/libmad/work/libmad-0.15.1b
-dwarf-debug-producer FreeBSD clang version 3.5.0 (tags/RELEASE_350/final
216957) 20141124 -o .libs/imdct_l_arm.o /tmp/imdct_l_arm-578a03.s 
1.      Program arguments: -triple armv6--freebsd11.0-gnueabi -filetype obj
-main-file-name imdct_l_arm.S -target-cpu arm1176jzf-s -target-feature -neon
-target-feature -crypto -fdebug-compilation-dir
/wrkdirs/usr/ports/audio/libmad/work/libmad-0.15.1b -dwarf-debug-producer
FreeBSD clang version 3.5.0 (tags/RELEASE_350/final 216957) 20141124 -o
.libs/imdct_l_arm.o /tmp/imdct_l_arm-578a03.s 
cc: error: unable to execute command: Abort trap (core dumped)
cc: error: clang integrated assembler command failed due to signal (use -v to
see invocation)
FreeBSD clang version 3.5.0 (tags/RELEASE_350/final 216957) 20141124
Target: armv6--freebsd11.0-gnueabi
Thread model: posix
cc: note: diagnostic msg: PLEASE submit a bug report to
https://bugs.freebsd.org/submit/ and include the crash backtrace, preprocessed
source, and associated run script.
cc: note: diagnostic msg: 
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
cc: note: diagnostic msg: /tmp/imdct_l_arm-3ad840.S
cc: note: diagnostic msg: /tmp/imdct_l_arm-3ad840.sh
cc: note: diagnostic msg: 

********************
*** Error code 1

Stop.
make[2]: stopped in /wrkdirs/usr/ports/audio/libmad/work/libmad-0.15.1b
*** Error code 1

Stop.
make[1]: stopped in /wrkdirs/usr/ports/audio/libmad/work/libmad-0.15.1b
*** Error code 1

Stop.
make: stopped in /wrkdirs/usr/ports/audio/libmad/work/libmad-0.15.1b

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