[LLVMbugs] [Bug 9872] New: Assertion failed: (Reg && "Invalid SubReg for physical register")

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=9872

           Summary: Assertion failed: (Reg && "Invalid SubReg for physical
                    register")
           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=6560)
 --> (http://llvm.org/bugs/attachment.cgi?id=6560)
bugpoint-reduced-blocks.bc

Recent regressin building the aic7xxx/ahc FreeBSD driver.

llvm/clang trunk r131065.

% llc bugpoint-reduced-blocks.bc 
Assertion failed: (Reg && "Invalid SubReg for physical register"), function
substPhysReg, file
/data/buildslave/freebsd-clang-i386/src-llvm/lib/CodeGen/MachineInstr.cpp, line
128.
Stack dump:
0.    Program arguments:
/data/buildslave/freebsd-clang-i386/obj/obj-llvm.2/Release+Asserts/bin/llc
bugpoint-reduced-blocks.bc 
1.    Running pass 'Function Pass Manager' on module
'bugpoint-reduced-blocks.bc'.
2.    Running pass 'Greedy Register Allocator' on function '@ahc_handle_seqint'
Abort (core dumped)

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