40508e3ed9
Despite previous efforts in fixing accidentally setting deduplication factor and avoiding enforcing a callsite debug loc for pseudo probes, I'm still seeing an IR probe having a non-zero discriminator. This time it is due to the merge of two probes with irreconsilable debug locations and the merged probe ends up getting the original callsite locs. Therefore I'm removing the assert about IR probe should always have a zero discriminator. This safe since - Probe discriminators are only emitted in FS-AFDO mode; and - The first FS discriminator assigning pass always clears non-discriminators left over from IR passes. Reviewed By: wenlei Differential Revision: https://reviews.llvm.org/D155252
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