[llvm-dev] setOperands(int, Value*) (original) (raw)

Abid Malik via llvm-dev llvm-dev at lists.llvm.org
Thu Feb 13 04:23:58 PST 2020

Hello,

I am trying to reset the operands of instructions. What I am doing is, I am finding all Uses of a specific operand in an Instruction and resetting it with a new value using "setOperands(int, Value*)". I am doing as:

for (auto vmitr=vm.begin(), vsitr=vs.begin(); vmitr!=vm.end() && vsitr!=vs.end(); vmitr++, vsitr++){ // I have two *Value ( operands)

for ( auto myitr =(*vsitr)->user_begin(); myitr!=(*vsitr)->user_end(); ++myitr){ // Finding the uses of one operand for ( int k = 0; k < (*myitr)->getNumOperands(); k++){ // going through the operands of the Instructions that uses it if ((*myitr)->getOperand(k) == *vsitr){ // Find the operand and its position in the instruction (*myitr)->setOperand(k,*vmitr); // Replacing it with the other operand value } }

}

The problem is that it goes into the end loop. ps. *vsitr and *vmitr are arguments of different call instructions but pointing to the same values.

Thanks

Abid M. Malik

"I have learned silence from the talkative, toleration from the intolerant, and kindness from the unkind"---Gibran "Success is not for the chosen few, but for the few who choose" --- John Maxwell "Being a good person does not depend on your religion or status in life, your race or skin color, political views or culture. IT DEPENDS ON HOW GOOD YOU TREAT OTHERS"--- Abid "The Universe is talking to us, and the language of the Universe is mathematics."----Abid -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20200213/f522053a/attachment.html>

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