[LLVMbugs] [Bug 15399] New: Do not know how to split this operator's operand

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Thu Feb 28 10:59:52 PST 2013


            Bug ID: 15399
           Summary: Do not know how to split this operator's operand
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: scott+llvm+bugzilla at pakin.org
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Created attachment 10110
  --> http://llvm.org/bugs/attachment.cgi?id=10110&action=edit
Source code for bug reproducer

Clang is exploding when trying to link some bitcode that invokes
@llvm.x86.avx.cvt.pd2dq.256 (_mm256_cvtpd_epi32() in the C source file):

$ gcc -fplugin=/home/pakin/llvm/lib/dragonegg.so -fplugin-arg-dragonegg-emit-ir
-march=native -S split-op-op.c -o split-op-op.ll
$ clang split-op-op.ll
fatal error: error in backend: Do not know how to split this operator's

/usr/bin/ld: /tmp/split-op-op-6izk0w.o: No such file: No such file or directory
clang: error: clang frontend command failed with exit code 70 (use -v to see
clang: error: linker command failed with exit code 1 (use -v to see invocation)
clang version 3.3 (trunk 176192)
Target: x86_64-unknown-linux-gnu
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to
http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and
associated run script.
clang: note: diagnostic msg: Error generating preprocessed source(s) - no
preprocessable inputs.

-- Scott

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