[LLVMdev] opt -O3 causes Assertion `New->getType() == getType() && "replaceAllUses of value with new value of different type!"' failed

[Hal Finkel]

----- Original Message -----
> Hi,
> 
> I don't see the LLVM bug I filed
> (http://llvm.org/bugs/show_bug.cgi?id=16780) making any progress.
> Can someone suggest me whether the bug is in the correct state?

The bug report displays alright for me.

Thanks again,
Hal

> 
> -Milind
> 
> On Fri, Aug 2, 2013 at 1:29 PM, Milind Chabbi
> <Milind.Chabbi at rice.edu> wrote:
> > Hi Hal,
> >
> > I have filed http://llvm.org/bugs/show_bug.cgi?id=16780
> >
> > -Milind
> >
> > On Fri, Aug 2, 2013 at 9:15 AM, Hal Finkel <hfinkel at anl.gov> wrote:
> >> Milind,
> >>
> >> Have you filed a bug on this? If not, can you please open a bug
> >> report (http://llvm.org/bugs)?
> >>
> >>  -Hal
> >>
> >> ----- Original Message -----
> >>> I am hitting an LLVM assertion from the llc tool iff the bitcode
> >>> file
> >>> is optimized at -O3 level by opt). -O1 and -O2 levels of opt do
> >>> not
> >>> cause this assert.
> >>>
> >>>  LLVM version 3.4svn
> >>>   DEBUG build with assertions.
> >>>   Built Jul 14 2013 (15:39:08).
> >>>   Default target: x86_64-unknown-linux-gnu
> >>>   Host CPU: amdfam10
> >>>
> >>>
> >>> I have attached the input bc file before -O3 optimization
> >>> :bzip2.del.bc.tgz
> >>> I have attached the input bc file after -O3 optimization :
> >>> bzip2.del.opt.bc.tgz
> >>>
> >>>
> >>> Command to run on -O3 optimized file: llc -cppgen=program
> >>> bzip2.del.opt.bc
> >>>
> >>> Call stack:
> >>>
> >>> llc: Value.cpp:307: void
> >>> llvm::Value::replaceAllUsesWith(llvm::Value*): Assertion
> >>> `New->getType() == getType() && "replaceAllUses of value with new
> >>> value of different type!"' failed.
> >>> 0  llc             0x00000000014c716a
> >>> llvm::sys::PrintStackTrace(_IO_FILE*) + 38
> >>> 1  llc             0x00000000014c73d1
> >>> 2  llc             0x00000000014c7718
> >>> 3  libpthread.so.0 0x000000333060eb10
> >>> 4  libc.so.6       0x000000332fa30265 gsignal + 53
> >>> 5  libc.so.6       0x000000332fa31d10 abort + 272
> >>> 6  libc.so.6       0x000000332fa296e6 __assert_fail + 246
> >>> 7  llc             0x00000000014702df
> >>> llvm::Value::replaceAllUsesWith(llvm::Value*) + 173
> >>> 8  llc             0x00000000006b91e3
> >>> llvm::BitcodeReaderValueList::ResolveConstantForwardRefs() + 1127
> >>> 9  llc             0x00000000006b9d97
> >>> llvm::BitcodeReader::ParseConstants() + 339
> >>> 10 llc             0x00000000006bc634
> >>> llvm::BitcodeReader::ParseFunctionBody(llvm::Function*) + 594
> >>> 11 llc             0x00000000006c2d63
> >>> llvm::BitcodeReader::Materialize(llvm::GlobalValue*,
> >>> std::string*) +
> >>> 411
> >>> 12 llc             0x00000000006c290d
> >>> llvm::BitcodeReader::MaterializeModule(llvm::Module*,
> >>> std::string*) +
> >>> 195
> >>> 13 llc             0x000000000144898e
> >>> llvm::Module::MaterializeAll(std::string*) + 78
> >>> 14 llc             0x00000000014489b7
> >>> llvm::Module::MaterializeAllPermanently(std::string*) + 29
> >>> 15 llc             0x00000000006c367b
> >>> llvm::ParseBitcodeFile(llvm::MemoryBuffer*, llvm::LLVMContext&,
> >>> std::string*) + 93
> >>> 16 llc             0x0000000000679302
> >>> llvm::ParseIR(llvm::MemoryBuffer*, llvm::SMDiagnostic&,
> >>> llvm::LLVMContext&) + 214
> >>> 17 llc             0x000000000067958a
> >>> llvm::ParseIRFile(std::string
> >>> const&, llvm::SMDiagnostic&, llvm::LLVMContext&) + 374
> >>> 18 llc             0x00000000006680f4
> >>> 19 llc             0x0000000000668fed main + 199
> >>> 20 libc.so.6       0x000000332fa1d994 __libc_start_main + 244
> >>> 21 llc             0x0000000000666319
> >>> Stack dump:
> >>> 0.    Program arguments: llc -cppgen=program bzip2.del.opt.bc
> >>>
> >>> _______________________________________________
> >>> LLVM Developers mailing list
> >>> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> >>> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >>>
> >>
> >> --
> >> Hal Finkel
> >> Assistant Computational Scientist
> >> Leadership Computing Facility
> >> Argonne National Laboratory
> >> _______________________________________________
> >> LLVM Developers mailing list
> >> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> >> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
> >>
> 

-- 
Hal Finkel
Assistant Computational Scientist
Leadership Computing Facility
Argonne National Laboratory