On ELFv2 ABI Clang can't build this port by default and throws assertion (already reported):
Assertion failed: ((Op.getOpcode() == ISD::FP_TO_SINT || Subtarget.hasFPCVT()) && "i64 FP_TO_UINT is supported only with FPCVT"), function LowerFP_TO_INTForReuse, file /poudriere/jails/powerpc64-elfv2-pkubaj/usr/src/contrib/llvm-project/llvm/lib/Target/PowerPC/PPCISelLowering.cpp, line 7281.
Stack dump:
0. Program arguments: /usr/bin/c++ -cc1 -triple powerpc64-unknown-freebsd13.0 -emit-obj -disable-free -main-file-name protoDispatcher.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -relaxed-aliasing -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu ppc64 -target-feature +secure-plt -mfloat-abi hard -dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer -coverage-notes-file /wrkdirs/usr/ports/net/norm/work/norm-1.5r6/build/protolib/src/common/protoDispatcher.cpp.1.gcno -resource-dir /usr/lib/clang/9.0.1 -I /wrkdirs/usr/ports/net/norm/work/norm-1.5r6/build/protolib/include -I /wrkdirs/usr/ports/net/norm/work/norm-1.5r6/protolib/include -I /wrkdirs/usr/ports/net/norm/work/norm-1.5r6/build/protolib/include/unix -I /wrkdirs/usr/ports/net/norm/work/norm-1.5r6/protolib/include/unix -D UNIX -D HAVE_DIRFD -D HAVE_IPV6 -D HAVE_ASSERT -D HAVE_GETLOGIN -D HAVE_FLOCK -D NDEBUG -internal-isystem /usr/include/c++/v1 -O3 -fdeprecated-macro -fdebug-compilation-dir /wrkdirs/usr/ports/net/norm/work/norm-1.5r6/build -ferror-limit 19 -fmessage-length 0 -stack-protector 2 -fno-signed-char -fobjc-runtime=gnustep -fcxx-exceptions -fexceptions -fdiagnostics-show-option -vectorize-loops -vectorize-slp -faddrsig -o /wrkdirs/usr/ports/net/norm/work/norm-1.5r6/build/protolib/src/common/protoDispatcher.cpp.1.o -x c++ ../protolib/src/common/protoDispatcher.cpp
1. <eof> parser at end of file
2. Code generation
3. Running pass 'Function Pass Manager' on module '../protolib/src/common/protoDispatcher.cpp'.
4. Running pass 'PowerPC DAG->DAG Pattern Instruction Selection' on function '@_ZN15ProtoDispatcher4WaitEv'
#0 0x000000001371df18 (/usr/bin/c+++0x1371df18)
#1 0x000000001371e594 (/usr/bin/c+++0x1371e594)
#2 0x000000001371b858 (/usr/bin/c+++0x1371b858)
#3 0x000000001371ed0c (/usr/bin/c+++0x1371ed0c)
#4 0x000000081520176c (/lib/libthr.so.3+0x1b76c)
c++: error: unable to execute command: Abort trap (core dumped)
c++: error: clang frontend command failed due to signal (use -v to see invocation)
FreeBSD clang version 9.0.1 (git@github.com:llvm/llvm-project.git c1a0a213378a458fbea1a5c77b315c7dce08fd05) (based on LLVM 9.0.1)
Target: powerpc64-unknown-freebsd13.0
Thread model: posix
InstalledDir: /usr/bin
c++: 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.
c++: note: diagnostic msg:
The workaround is to optimize for POWER7, which supports necessary features in hardware. This will break run-time for older CPU's, but at least we can get this port running on POWER7 and newer.
PR: 243227
Approved by: hd@oc.dk (maintainer timeout)
66d6287179