[LLVMdev] Assertion: replaceAllUses of value with new value of different type! being thrown all of a sudden

[Christian Schafmeister]

I forgot to mention this in my initial email.

The build of LLVM that I was using was commit a0d5d7aed8e177cea381b3d054d80c212ece9f2c
The date on the commit is: Date:   Fri Sep 26 12:34:06 2014

Also:
Today I grabbed the ToT llvm/clang/clang-extra-tools  and I’m working on getting my code to be compatible with it.

I can switch back and forth between the current ToT llvm and the old one.

Thanks,

.Chris.


On Jan 18, 2015, at 12:52 PM, Duncan P. N. Exon Smith <dexonsmith at apple.com> wrote:

> I'm not sure what's going on, but I do know this code wouldn't 
> (or, shouldn't) compile on ToT for the last couple of months,
> since `Value` and `MDNode` belong to different class hierarchies.
> 
>> On 2015 Jan 17, at 15:16, Christian Schafmeister <chris.schaf at verizon.net> wrote:
>> 
>> Hello,
>> 
>> I wonder if someone would know what is going on below.
>> 
>> 
>> All of a sudden I’m getting this assertion thrown:
>> 
>> Assertion failed: (New->getType() == getType() && "replaceAllUses of value with new value of different type!"), function replaceAllUsesWith, file /Users/meister/Development/externals-clasp/llvm36/lib/IR/Value.cpp, line 345.
>> 
>> It’s happening when DIBuilder::finalize is being called at the end of a source file compilation.
>> 
>> Here’s the most illuminating debugging information I could pull out of a frame:
>> 
>> 
>> (lldb) 
>> frame #6: 0x0000000103a67c3e clasp_boehm_d`llvm::DIDescriptor::replaceAllUsesWith(this=0x00007fff5fb9e288, D=0x000000010985b330) + 254 at DebugInfo.cpp:399
>>  396 	  MDNode *Node = const_cast<MDNode *>(DbgNode);
>>  397 	  const MDNode *DN = D;
>>  398 	  const Value *V = cast_or_null<Value>(DN);
>> -> 399 	  Node->replaceAllUsesWith(const_cast<Value *>(V));
>>  400 	  MDNode::deleteTemporary(Node);
>>  401 	}
>>  402 	
>> (lldb) print Node
>> (llvm::MDNode *) $3 = 0x00000001180b74c0
>> (lldb) call Node->dump()
>> !{i32 786468}
>> 
>> (lldb) call V->dump()
>> !{}
>> 
>> (lldb) 
>> 
>> 
>> 
>> 
>> Here’s the first part of the backtrace:
>> 
>> (lldb) bt
>> * thread #1: tid = 0x4ec96f, 0x00007fff93137866 libsystem_kernel.dylib`__pthread_kill + 10, queue = 'com.apple.main-thread', stop reason = signal SIGABRT
>>   frame #0: 0x00007fff93137866 libsystem_kernel.dylib`__pthread_kill + 10
>>   frame #1: 0x00007fff8cd8035c libsystem_pthread.dylib`pthread_kill + 92
>>   frame #2: 0x0000000103ca78ab clasp_boehm_d`raise(sig=6) + 27 at Signals.inc:373
>>   frame #3: 0x0000000103ca7962 clasp_boehm_d`abort + 18 at Signals.inc:390
>>   frame #4: 0x0000000103ca7941 clasp_boehm_d`__assert_rtn(func=0x000000010432361c, file=0x00000001043231df, line=345, expr=0x0000000104323720) + 129 at Signals.inc:386
>>   frame #5: 0x0000000103bfa48d clasp_boehm_d`llvm::Value::replaceAllUsesWith(this=0x00000001180b74c0, New=0x000000010985b330) + 317 at Value.cpp:344
>>   frame #6: 0x0000000103a67c3e clasp_boehm_d`llvm::DIDescriptor::replaceAllUsesWith(this=0x00007fff5fb9e288, D=0x000000010985b330) + 254 at DebugInfo.cpp:399
>> * frame #7: 0x0000000103a4e8e9 clasp_boehm_d`llvm::DIBuilder::finalize(this=0x0000000116bba4e0) + 185 at DIBuilder.cpp:40
>>   frame #8: 0x00000001010cd4c8 clasp_boehm_d`core::IndirectVariadicMethoid<core::policies::policies_<>, llvmo::DIBuilder_O, void (this=0x000000010c6ea5b8, lcc_resultP=0x00007fff5fb9eb58, arg0=<unavailable>)()>::invoke(gctools::multiple_values<core::T_O>*, gctools::smart_ptr<core::T_O>) + 232 at external_wrappers_indirect_methoids.h:2704
>>   frame #9: 0x00000001010cd1f1 clasp_boehm_d`core::IndirectVariadicMethoid<core::policies::policies_<>, llvmo::DIBuilder_O, void (this=0x000000010c6ea5b8, lcc_resultP=0x00007fff5fb9eb58, lcc_nargs=1, lcc_fixed_arg0=0x000000010d1dd098, lcc_fixed_arg1=0x0000000000000000, lcc_fixed_arg2=0x0000000000000000, lcc_fixed_arg3=0x0000000000000000, lcc_fixed_arg4=0x0000000000000000)()>::invoke(gctools::multiple_values<core::T_O>*, unsigned long, core::T_O*, core::T_O*, core::T_O*, core::T_O*, core::T_O*) + 577 at external_wrappers_indirect_methoids.h:2698
>>   frame #10: 0x00000001009a2426 clasp_boehm_d`core::SingleDispatchGenericFunctionClosure::invoke(this=0x000000010c6ea558, lcc_resultP=0x00007fff5fb9eb58, lcc_nargs=1, lcc_fixed_arg0=0x000000010d1dd098, lcc_fixed_arg1=0x0000000000000000, lcc_fixed_arg2=0x0000000000000000, lcc_fixed_arg3=0x0000000000000000, lcc_fixed_arg4=0x0000000000000000) + 2022 at singleDispatchGenericFunction.cc:183
>>   frame #11: 0x00000001010f5d5f clasp_boehm_d`sp_FUNCALL(resultP=0x00007fff5fb9f168, closure=0x000000010c6ea558, lcc_nargs=1, lcc_fixed_arg0=0x000000010d1dd098, lcc_fixed_arg1=0x0000000000000000, lcc_fixed_arg2=0x0000000000000000, lcc_fixed_arg3=0x0000000000000000, lcc_fixed_arg4=0x0000000000000000) + 815 at intrinsics.cc:272
>> 
>> 
>> 
>> 
>> 
> 

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