fatal error: error in backend: Not supported instr: <MCInst 421 <MCOperand Reg:187> <MCOperand Reg:139>> make[8]: *** [lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/build.make:326: lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/X86ISelLowering.cpp.o] Error 70 make[8]: Leaving directory '/<<BUILDDIR>>/llvm-toolchain-10-10.0.0~+rc1/build-llvm/tools/clang/stage2-bins' make[7]: *** [CMakeFiles/Makefile2:30692: lib/Target/X86/CMakeFiles/LLVMX86CodeGen.dir/all] Error 2 make[7]: *** Waiting for unfinished jobs.... Full log: https://buildd.debian.org/status/fetch.php?pkg=llvm-toolchain-10&arch=s390x&ver=1%3A10.0.0%7E%2Brc1-1%7Eexp1&stamp=1580899435&raw=0 Reported: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=950900
Would it be possible to get preprocessed source and compiler invocation so this can be reproduced?
I was just able to reproduce it... looking...
Suggested patch at https://reviews.llvm.org/D74352
Should be fixed by 0311e28.
Reopening for 10.0.0 backport https://github.com/llvm/llvm-project/commit/0311e28e9cc01a244faa774b8cab337b45404fa9
Cherry-picked to 10.x in 3c94b2780126be9cf0e828bbd62729cdc5f421da