[LLVMbugs] [Bug 10570] New: Machine loops (?) crash: Instruction does not dominate all uses!

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=10570

           Summary: Machine loops (?) crash: Instruction does not dominate
                    all uses!
           Product: new-bugs
           Version: 2.9
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: baldrick at free.fr
                CC: llvmbugs at cs.uiuc.edu


Created an attachment (id=7004)
 --> (http://llvm.org/bugs/attachment.cgi?id=7004)
testcase .ll

$ llc dom.ll -debug-pass=Arguments
Pass Arguments:  -targetdata -no-aa -tbaa -basicaa -collector-metadata
-machinemoduleinfo -preverify -domtree -verify -loops -loop-simplify
-scalar-evolution -loop-simplify -iv-users -loop-reduce -gc-lowering
-unreachableblockelim -codegenprepare -stack-protector -preverify -verify
-loops -branch-prob -opt-phis -dead-mi-elimination -machinedomtree
-machine-loops -machinelicm -machine-cse -machine-sink -peephole-opts
-unreachable-mbb-elimination -livevars -phi-node-elimination
-twoaddressinstruction -processimpdefs -slotindexes -liveintervals
-livedebugvars -simple-register-coalescing -calcspillweights -livestacks
-virtregmap -edge-bundles -spill-code-placement -stack-slot-coloring
-machinelicm -edge-bundles -prologepilog -machinedomtree -machine-loops
-machine-loops
Instruction does not dominate all uses!
  %0 = add i64 48, 48
  %tmp = add i64 %0, -48
Broken module found, compilation aborted!
...
7  llc       0x000000000149242b
llvm::FPPassManager::runOnFunction(llvm::Function&) + 431
8  llc       0x000000000149266a llvm::FPPassManager::runOnModule(llvm::Module&)
+ 102
9  llc       0x000000000149299a llvm::MPPassManager::runOnModule(llvm::Module&)
+ 456
10 llc       0x0000000001492e8c llvm::PassManagerImpl::run(llvm::Module&) + 130
11 llc       0x0000000001493293 llvm::PassManager::run(llvm::Module&) + 39
12 llc       0x0000000000a8b2db main + 2617
13 libc.so.6 0x00007faef0fb8e1f __libc_start_main + 255
14 llc       0x0000000000a8a199
Stack dump:
0.    Program arguments: llc dom.ll -debug-pass=Arguments 
1.    Running pass 'Function Pass Manager' on module 'dom.ll'.
2.    Running pass 'Module Verifier' on function '@sqlite3DropTriggerPtr'
Aborted (core dumped)

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