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# 8ebb3eac 18-Nov-2021 Bjorn Pettersson <[email protected]>

[test] Use -passes syntax when specifying pipeline in some more tests

The legacy PM is deprecated, so update a bunch of lit tests running
opt to use the new PM syntax when specifying the pipeline.
I

[test] Use -passes syntax when specifying pipeline in some more tests

The legacy PM is deprecated, so update a bunch of lit tests running
opt to use the new PM syntax when specifying the pipeline.
In this patch focus has been put on test cases for ConstantMerge,
ConstraintElimination, CorrelatedValuePropagation, GlobalDCE,
GlobalOpt, SCCP, TailCallElim and PredicateInfo.

Differential Revision: https://reviews.llvm.org/D114516

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# 8a36594a 19-Mar-2020 Florian Hahn <[email protected]>

[SCCP] Use constant ranges for binary operators.

If one of the operands of a binary operator is a constant range, we can
use ConstantRange::binaryOp to approximate the result.

We still handle singl

[SCCP] Use constant ranges for binary operators.

If one of the operands of a binary operator is a constant range, we can
use ConstantRange::binaryOp to approximate the result.

We still handle single element constant ranges as we did previously,
with ConstantExpr::get(), because ConstantRange::binaryOp still gives
worse results in a few cases for single element ranges.

Also note that we bail out early if any of the operands is still unknown.

Reviewers: davide, efriedma, mssimpso

Reviewed By: efriedma

Differential Revision: https://reviews.llvm.org/D71936

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