[LLVMdev] LLC fail without gccld optimization on spec2000 int benchmarks

Wed Apr 26 15:33:21 PDT 2006

Hi,

In my experiments, I need to disable several linking optimizations. However,
bzip2, vortex and eon failed if "-disable-opt" was passed to gccld. I tried
the out-of-box llvm and the building process provided by llvm-test. The same
problem was observed, when I specified EXTRA_LINKTIME_OPT_FLAGS =
-disable-opt on Makefile.program and simplied typed "make" under
llvm-test/External/SPEC/CINT2000. Seems that these errors come from llc
backend. But I have to stick to x86 backend because otherwise I can not
control the optimization passes that gcc will put on the generated c code.

I am wondering if this problem is a llc bug or some implicit rules. I really
appreciate if it is solved.

Thanks,
Jing

==============error messages for vortex:=================
 /home/snir/jingyu/resources/llvm/build2/Debug/bin/gccas
Output/255.vortex.linked.rll -o Output/255.vortex.linked.bc
/home/snir/jingyu/resources/llvm/build2/Debug/bin/gccld
-L/home/snir/jingyu/resources/llvm/cfrontend/x86/llvm-gcc/bin/../lib/gcc/i686-pc-linux-gnu/3.4-llvm
-L/home/snir/jingyu/resources/llvm/cfrontend/x86/llvm-gcc/bin/../lib
Output/255.vortex.linked.bc
-disable-opt -lc -lpthread -lltdl -lm  -lcrtend -o Output/255.vortex.llvm
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc  -f
Output/255.vortex.llvm.bc -o Output/255.vortex.llc.s
llc:
/home/snir/jingyu/resources/llvm/build2/../llvm2/llvm/lib/Target/X86/X86ISelLowering.cpp:2405:
virtual llvm::SDOperand
llvm::X86TargetLowering::LowerOperation(llvm::SDOperand,
llvm::SelectionDAG&): Assertion `isFP && "Illegal integer SetCC!"'
failed./home/snir/jingyu/resources/llvm/build2/Debug/bin/llc((anonymous
namespace)::PrintStackTrace()+0x1a)[0x87a818e]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc((anonymous
namespace)::SignalHandler(int)+0xe9)[0x87a841d]
/lib/tls/libc.so.6[0x420277b8]
/lib/tls/libc.so.6(abort+0x1d5)[0x42028c55]
/lib/tls/libc.so.6[0x42021043]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::X86TargetLowering::LowerOperation(llvm::SDOperand,
llvm::SelectionDAG&)+0x26c5)[0x83fe515]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc((anonymous
namespace)::SelectionDAGLegalize::LegalizeOp(llvm::SDOperand)+0xa318)[0x851262c]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc((anonymous
namespace)::SelectionDAGLegalize::PromoteOp(llvm::SDOperand)+0x3030)[0x851c3cc]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc((anonymous
namespace)::SelectionDAGLegalize::HandleOp(llvm::SDOperand)+0xa9)[0x85080bf]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc((anonymous
namespace)::SelectionDAGLegalize::LegalizeDAG()+0x236)[0x8507a4e]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::SelectionDAG::Legalize()+0x48)[0x852848c]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::SelectionDAGISel::CodeGenAndEmitDAG(llvm::SelectionDAG&)+0x75)[0x854f957]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::SelectionDAGISel::SelectBasicBlock(llvm::BasicBlock*,
llvm::MachineFunction&, llvm::FunctionLoweringInfo&)+0xd8)[0x854fb1e]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::SelectionDAGISel::runOnFunction(llvm::Function&)+0x2cd)[0x854e111]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc((anonymous
namespace)::X86DAGToDAGISel::runOnFunction(llvm::Function&)+0x25)[0x84ea18b]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::FunctionPassManagerT::runPass(llvm::FunctionPass*,
llvm::Function*)+0x1f)[0x86e004b]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::PassManagerT<llvm::FTraits>::runPasses(llvm::Function*,
std::map<llvm::Pass*, std::vector<llvm::Pass*, std::allocator<llvm::Pass*>
>, std::less<llvm::Pass*>, std::allocator<std::pair<llvm::Pass*
const, std::vector<llvm::Pass*, std::allocator<llvm::Pass*> > > >
>&)+0x13e)[0x86de7e0]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::PassManagerT<llvm::FTraits>::runOnUnit(llvm::Function*)+0x17b)[0x86de667]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::FunctionPassManagerT::runOnFunction(llvm::Function&)+0x25)[0x86e00e9]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::FunctionPass::runOnModule(llvm::Module&)+0xa5)[0x867420f]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::ModulePassManager::runPass(llvm::ModulePass*,
llvm::Module*)+0x1f)[0x86e1c11]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::PassManagerT<llvm::MTraits>::runPasses(llvm::Module*,
std::map<llvm::Pass*, std::vector<llvm::Pass*, std::allocator<llvm::Pass*>
>, std::less<llvm::Pass*>, std::allocator<std::pair<llvm::Pass* const,
std::vector<llvm::Pass*, std::allocator<llvm::Pass*> > > >
>&)+0x13e)[0x86e0a4e]/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::PassManagerT<llvm::MTraits>::runOnUnit(llvm::Module*)+0x17b)[0x86e08d5]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::ModulePassManager::runOnModule(llvm::Module&)+0x25)[0x867329d]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(llvm::PassManager::run(llvm::Module&)+0x23)[0x867362d]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(main+0xd67)[0x83c589b]
/lib/tls/libc.so.6(__libc_start_main+0xe4)[0x42015704]
/home/snir/jingyu/resources/llvm/build2/Debug/bin/llc(dlopen+0x45)[0x83c49a1]
make[1]: *** [Output/255.vortex.llc.s] Aborted (core dumped)

==========error messages for bzip2:===========
...
gcc  Output/256.bzip2.llc.s  -lm    -lm  -o Output/256.bzip2.llc
/home/snir/jingyu/resources/llvm/llvm2/llvm/projects/llvm-test/External/SPEC/Sandbox.sh
llc-train Output/256.bzip2.out-llc
/home/snir/jingyu/resources/llvm/build2/projects/llvm-test/External/speccpu2000/benchspec/CINT2000/256.bzip2/data/train/input/
\

/home/snir/jingyu/resources/llvm/llvm2/llvm/projects/llvm-test/RunSafely.sh
500 /dev/null input.compressed.out \
                  ../256.bzip2.llc `cat
/home/snir/jingyu/resources/llvm/build2/projects/llvm-test/External/speccpu2000/benchspec/CINT2000/256.bzip2/data/train/input/control`
Running:
/home/snir/jingyu/resources/llvm/llvm2/llvm/projects/llvm-test/RunSafely.sh
500 /dev/null input.compressed.out ../256.bzip2.llc input.compressed 8
(cd Output/llc-train; cat input.compressed.out) > Output/256.bzip2.out-llc
cp Output/llc-train/input.compressed.out.time Output/256.bzip2.out-llc.time
/home/snir/jingyu/resources/llvm/llvm2/llvm/projects/llvm-test/DiffOutput.sh
"/home/snir/jingyu/resources/llvm/build2/Debug/bin/fpcmp " llc 256.bzip2
/home/snir/jingyu/resources/llvm/build2/Debug/bin/fpcmp: Comparison failed,
not a numeric difference.
******************** TEST (llc) '256.bzip2' FAILED! ********************
Execution Context Diff:
******************** TEST (llc) '256.bzip2' ****************************

========error messages for eon============
...
Running:
/home/snir/jingyu/resources/llvm/llvm2/llvm/projects/llvm-test/RunSafely.sh
500 /dev/null cook_log.out
/home/snir/jingyu/resources/llvm/build2/Debug/bin/lli
-force-interpreter=false ../252.eon.llvm.bc chair.control.cook chair.camera
chair.surfaces chair.cook.ppm ppm pixels_out.cook
Core was generated by `/home/snir/jingyu/resources/llvm/build2/Debug/bin/lli
-force-interpreter=false'.
Program terminated with signal 11, Segmentation fault.
#0  0x4055c292 in ?? ()
#0  0x4055c292 in ?? ()
#1  0x405500c8 in ?? ()
#2  0x0846fb12 in llvm::ExecutionEngine::runFunctionAsMain(llvm::Function*,
std::vector<std::string, std::allocator<std::string> > const&, char const*
const*)
    (this=0x8e00ae0, Fn=0x8a0c378, argv=@0x890fe5c, envp=0xbfffe35c)
    at
/home/snir/jingyu/resources/llvm/build2/../llvm2/llvm/lib/ExecutionEngine/ExecutionEngine.cpp:154
#3  0x083ba550 in main (argc=9, argv=0xbfffe334, envp=0xbfffe35c)
    at
/home/snir/jingyu/resources/llvm/build2/../llvm2/llvm/tools/lli/lli.cpp:105
#4  0x42015704 in __libc_start_main () from /lib/tls/libc.so.6
(cd Output/jit-train; cat pixels_out.cook pixels_out.kajiya
pixels_out.rushmeier) > Output/252.eon.out-jit
cat: pixels_out.cook: No such file or directory
cat: pixels_out.kajiya: No such file or directory
cat: pixels_out.rushmeier: No such file or directory
make[1]: [Output/252.eon.out-jit] Error 1 (ignored)
cp Output/jit-train/cook_log.out.time Output/252.eon.out-jit.time
/home/snir/jingyu/resources/llvm/llvm2/llvm/projects/llvm-test/DiffOutput.sh
"/home/snir/jingyu/resources/llvm/build2/Debug/bin/fpcmp  -a 0.005" jit
252.eon
******************** TEST (jit) '252.eon' FAILED! ********************
Execution Context Diff:
******************** TEST (jit) '252.eon' ****************************
make[1]: Leaving directory
`/home/snir/jingyu/resources/llvm/build2/projects/llvm-test/External/SPEC/CINT2000/252.eon'
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