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C++: Remove an unnecessary column #16299

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merged 1 commit into from May 8, 2024

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MathiasVP
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@MathiasVP MathiasVP commented Apr 22, 2024

This is just a small cleanup that shouldn't have any external impact. The BaseSourceVariableInstruction column is functionally determined by the other columns, so we can simply remove it.

DCA was uneventful

@github-actions github-actions bot added the C++ label Apr 22, 2024
@MathiasVP MathiasVP force-pushed the remove-base-address-as-ipa-key branch from 41de946 to 6564582 Compare May 8, 2024 09:01
@MathiasVP MathiasVP marked this pull request as ready for review May 8, 2024 12:39
@MathiasVP MathiasVP requested a review from a team as a code owner May 8, 2024 12:39
@MathiasVP MathiasVP added the no-change-note-required This PR does not need a change note label May 8, 2024
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Any idea what's going on with "Diffed query result tuple counts" in the DCA report?

Otherwise LGTM.

TDirectDefImpl(BaseSourceVariableInstruction base, Operand address, int indirectionIndex) {
isDef(_, _, address, base, _, indirectionIndex)
TDirectDefImpl(Operand address, int indirectionIndex) {
isDef(_, _, address, _, _, indirectionIndex)
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So we never had two TDirectDefImpl with the same address / indirectionIndex but different bases?

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Correct. That would only be possible if an operand somehow had two base instructions. And we don't generate that kind of IR

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Any idea what's going on with "Diffed query result tuple counts" in the DCA report?

Good question. I tried running both queries locally and they produce exactly the same set of results. I think it may be related to these queries on those projects generating very large bqrs files, and since the size of the bqrs file is very larg ethe Diffed query result tuple counts report may be outputting that this is interesting even though nothing has changed

@MathiasVP MathiasVP merged commit 59fb9cc into github:main May 8, 2024
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2 participants