[LLVMbugs] [Bug 7479] New: Assertion failed: (!empty() && "Call to beginIndex() on empty interval.")

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=7479

           Summary: Assertion failed: (!empty() && "Call to beginIndex()
                    on empty interval.")
           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


Created an attachment (id=5101)
 --> (http://llvm.org/bugs/attachment.cgi?id=5101)
bugpoint-reduced-simplified.bc

clang version 2.0 (trunk 106714)

This only happens on i386. The source is freebsd/contrib/file/readelf.c.

$ llc bugpoint-reduced-simplified.bc
Assertion failed: (!empty() && "Call to beginIndex() on empty interval."),
function beginIndex, file
/data/buildslave/freebsd-clang-i386/src-llvm/include/llvm/CodeGen/LiveInterval.h,
line 455.
Stack dump:
0.    Program arguments:
/data/buildslave/freebsd-clang-i386/obj/obj-llvm.1/Release/bin/llc
bugpoint-reduced-simplified.bc 
1.    Running pass 'Function Pass Manager' on module
'bugpoint-reduced-simplified.bc'.
2.    Running pass 'Linear Scan Register Allocator' on function '@file_tryelf'
Abort (core dumped)

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