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This was referenced Jul 11, 2024
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PTAL @AndyAyersMS @jakobbotsch cc @dotnet/jit-contrib Diffs I tried to fix the TP hit by only inspecting root node for PHI, but there is still 0.1% regression. Can we accept it? |
jakobbotsch
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Jul 12, 2024
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| if (fgIsBigOffset(offset) || op1->gtOper != GT_LCL_VAR) | ||
| if (fgIsBigOffset(offset) || !op1->IsLocal()) |
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Is this change ok? LCL_FLD will create an assertion about the parent local without encoding any information about the offset, which seems odd.
jakobbotsch
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Jul 12, 2024
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| else if (value->TypeGet() == TYP_REF) | ||
| { | ||
| // If we have an unsafe IL store of a TYP_REF to a non-ref (typically a TYP_BYREF) | ||
| // then don't propagate this ValueNumber to the lhs, instead create a new unique VN. | ||
| valueVNPair.SetBoth(vnStore->VNForExpr(compCurBB, store->TypeGet())); | ||
| } |
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Might be a good idea to see if you can dig up why this was added to verify it won't cause any problems to remove it.
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superseded by #108420 |
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Closes #104489
Thanks to @AndyAyersMS and @jakobbotsch for ideas how to fix it.
Let's see what CI thinks..