[LLVMbugs] [Bug 10388] New: bugpoint UNREACHABLE executed at BitcodeWriter.cpp:914!

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=10388

           Summary: bugpoint UNREACHABLE executed at
                    BitcodeWriter.cpp:914!
           Product: new-bugs
           Version: trunk
          Platform: PC
        OS/Version: FreeBSD
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: pawel.worach at gmail.com
                CC: llvmbugs at cs.uiuc.edu


bugpoint crashes on the following bitcode file:
http://llvm-amd64.freebsd.your.org/tmp/motion_est.bc

llvm/clang r135360.

% bugpoint -run-llc motion_est.bc
Read input file      : 'motion_est.bc'
*** All input ok
Initializing execution environment: Found gcc: /usr/bin/gcc
Running the code generator to test for a crash: <llc>
Error running tool:
  /usr/local/llvm/bin/llc -o bugpoint-test-program.bc.llc.s
bugpoint-test-program.bc
Stack dump:
0.    Program arguments: /usr/local/llvm/bin/llc -o
bugpoint-test-program.bc.llc.s bugpoint-test-program.bc 
1.    Running pass 'Function Pass Manager' on module
'bugpoint-test-program.bc'.
2.    Running pass 'Greedy Register Allocator' on function
'@ff_epzs_motion_search'
*** Debugging code generator crash!

Checking to see if we can delete global inits: 
define internal void @zero_hpel(i8* nocapture %a, i8* nocapture %b, i32
%stride, i32 %h) nounwind uwtable readnone {
entry:
  tail call void @llvm.dbg.value(metadata !{i8* %a}, i64 0, metadata !3302),
!dbg !3772
  tail call void @llvm.dbg.value(metadata !{i8* %b}, i64 0, metadata !3303),
!dbg !3773
  tail call void @llvm.dbg.value(metadata !{i32 %stride}, i64 0, metadata
!3304), !dbg !3774
  tail call void @llvm.dbg.value(metadata !{i32 %h}, i64 0, metadata !3305),
!dbg !3775
  ret void, !dbg !3776
}

Unknown constant!
UNREACHABLE executed at
/data/buildslave/freebsd-clang-amd64/src-llvm/lib/Bitcode/Writer/BitcodeWriter.cpp:914!
Stack dump:
0.    Program arguments: bugpoint -run-llc motion_est.bc 
Abort

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