[LLVMdev] Valgrind Help Needed

[Bill Wendling]

Adding "--enable-assertions" to the llvm-gcc configure line causes  
the build to fail. Having just LLVM configured with --enable- 
assertions doesn't reproduce the error. An assertion build (the Apple  
way) doesn't assert.

-bw

On Sep 19, 2007, at 5:48 PM, Dale Johannesen wrote:

> This should have gotten an assertion failure in a compiler built  
> with assertions, surely...
>
> On Sep 19, 2007, at 5:41 PM, Devang Patel wrote:
>>> $ llvm-gcc -x objective-c -arch ppc64 -std=c99 -c testcase.mi
>>> testcase.mi:12: internal compiler error: Bus error
>>> Please submit a full bug report,
>>> with preprocessed source if appropriate.
>>> See <URL:http://llvm.org/bugs> for instructions.
>>
>> In llvm-backend.cpp  :
>>
>> 1086	        if (GV->getName() != Name) {
>> 1087	          Function *F = TheModule->getFunction(Name);
>> 1088	          assert(F && F->isDeclaration() && "A function  
>> turned into a global?");
>> 1089	
>> 1090	          // Replace any uses of "F" with uses of GV.
>> 1091	          Value *FInNewType = ConstantExpr::getBitCast(GV, F- 
>> >getType());
>>
>>
>> (gdb) p Name
>> $3 = 0x41819430 "\001L_OBJC_PROTOCOL_$_CPTransferThreadObserving"
>>
>> However  TheModule->getFunction(Name) returns NULL and you get ICE  
>> at F->getType() #1091. I'll let you investigate this further ...   :)
>>
>>
>> -
>> Devang
>>
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