[llvm-commits] [llvm] r168889 - /llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp

[Evgeniy Stepanov]

r168997.

On Thu, Nov 29, 2012 at 8:54 PM, Kostya Serebryany <kcc at google.com> wrote:
> Unittests?
> (I know, we'll have this tested in runnable tests, but .ll tests won't
> hurt).
>
>
> On Thu, Nov 29, 2012 at 7:22 PM, Evgeniy Stepanov
> <eugeni.stepanov at gmail.com> wrote:
>>
>> Author: eugenis
>> Date: Thu Nov 29 09:22:06 2012
>> New Revision: 168889
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=168889&view=rev
>> Log:
>> [msan] Handle vector manipulation instructions.
>>
>> Handle insertelement, extractelement, shufflevector.
>>
>> Modified:
>>     llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp
>>
>> Modified: llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp
>> URL:
>> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp?rev=168889&r1=168888&r2=168889&view=diff
>>
>> ==============================================================================
>> --- llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp
>> (original)
>> +++ llvm/trunk/lib/Transforms/Instrumentation/MemorySanitizer.cpp Thu Nov
>> 29 09:22:06 2012
>> @@ -743,6 +743,31 @@
>>        IRB.CreateAlignedStore(getOrigin(Val), getOriginPtr(Addr, IRB),
>> I.getAlignment());
>>    }
>>
>> +  // Vector manipulation.
>> +  void visitExtractElementInst(ExtractElementInst &I) {
>> +    insertCheck(I.getOperand(1), &I);
>> +    IRBuilder<> IRB(&I);
>> +    setShadow(&I, IRB.CreateExtractElement(getShadow(&I, 0),
>> I.getOperand(1),
>> +              "_msprop"));
>> +    setOrigin(&I, getOrigin(&I, 0));
>> +  }
>> +
>> +  void visitInsertElementInst(InsertElementInst &I) {
>> +    insertCheck(I.getOperand(2), &I);
>> +    IRBuilder<> IRB(&I);
>> +    setShadow(&I, IRB.CreateInsertElement(getShadow(&I, 0), getShadow(&I,
>> 1),
>> +              I.getOperand(2), "_msprop"));
>> +    setOriginForNaryOp(I);
>> +  }
>> +
>> +  void visitShuffleVectorInst(ShuffleVectorInst &I) {
>> +    insertCheck(I.getOperand(2), &I);
>> +    IRBuilder<> IRB(&I);
>> +    setShadow(&I, IRB.CreateShuffleVector(getShadow(&I, 0), getShadow(&I,
>> 1),
>> +              I.getOperand(2), "_msprop"));
>> +    setOriginForNaryOp(I);
>> +  }
>> +
>>    // Casts.
>>    void visitSExtInst(SExtInst &I) {
>>      IRBuilder<> IRB(&I);
>>
>>
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>
>