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2018 Apr 27
1
TBAA metadata
Hi,
I am looking at the Type Based Alias Analysis and I am trying to understand why, from what I see, pointsToConstantMemory() never returns true.
It seems that this information should come from the TBAA metadata, in which the Access Tag has an optional 4th field to specify this information.
"Access tags are represented as MDNode s with either 3 or 4 operands. The first operand is an