[llvm-bugs] [Bug 45098] New: clang frontend command failed with exit code 70

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45098

            Bug ID: 45098
           Summary: clang frontend command failed with exit code 70
           Product: clang
           Version: 9.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: golka.gerald at gmail.com
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org,
                    neeilans at live.com, richard-llvm at metafoo.co.uk

Created attachment 23200
  --> https://bugs.llvm.org/attachment.cgi?id=23200&action=edit
Run script

I was trying to compile the tests of the enoki library
https://github.com/mitsuba-renderer/enoki and got the following compiler crash:

FAILED: tests/CMakeFiles/memory_avx512_knl.dir/memory.cpp.o 
/usr/bin/clang++-9   -I../include -stdlib=libc++ -D_LIBCPP_VERSION -std=c++17
-O3 -DNDEBUG   -fno-stack-protector -fomit-frame-pointer -fno-math-errno
-ffp-contract=fast -fvisibility=hidden -Wall -Wextra -Wconversion -march=knl
-MD -MT tests/CMakeFiles/memory_avx512_knl.dir/memory.cpp.o -MF
tests/CMakeFiles/memory_avx512_knl.dir/memory.cpp.o.d -o
tests/CMakeFiles/memory_avx512_knl.dir/memory.cpp.o -c ../tests/memory.cpp
fatal error: error in backend: Cannot select: 0x1300aa28: v64i8 = BUILD_VECTOR
Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<0>, Constant:i8<64>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<-128>, Constant:i8<64>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<-64>, Constant:i8<64>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<65>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<32>,
Constant:i8<65>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<64>,
Constant:i8<65>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>,
Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<96>,
Constant:i8<65>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>, Constant:i8<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x111fd938: i8 = Constant<64>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x12ff3da0: i8 = Constant<-128>
  0x111fd938: i8 = Constant<64>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0xfe7d6e0: i8 = Constant<-64>
  0x111fd938: i8 = Constant<64>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x13525488: i8 = Constant<65>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x12ff3378: i8 = Constant<32>
  0x13525488: i8 = Constant<65>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x111fd938: i8 = Constant<64>
  0x13525488: i8 = Constant<65>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x10be0d78: i8 = Constant<96>
  0x13525488: i8 = Constant<65>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
  0x130432e0: i8 = Constant<0>
In function: _Z18test11_load_maskedIfLm16EN5enoki5ArrayIfLm16EEEEvv
clang: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 9.0.0-2~ubuntu18.04.2 (tags/RELEASE_900/final)

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