llvm-project.git/llvm/test/Transforms/InferAlignment/gep-array.ll, branch users/nico/python-2 Unnamed repository; edit this file 'description' to name the repository. [ConstantFold] Remove notional over-indexing fold (#93697) 2024-05-30T06:36:44+00:00 Nikita Popov npopov@redhat.com 2024-05-30T06:36:44+00:00 d10b76552f919ddb84347ab03908a55804ea6b8a The data-layout independent constant folding currently has some rather gnarly code for canonicalizing GEP indices to reduce "notional overindexing", and then infers inbounds based on that canonicalization. Now that we canonicalize to i8 GEPs, this canonicalization is essentially useless, as we'll discard it as soon as the GEP hits the data-layout aware constant folder anyway. As such, I'd like to remove this code entirely. This shouldn't have any impact on optimization capabilities. 
The data-layout independent constant folding currently has some rather
gnarly code for canonicalizing GEP indices to reduce "notional
overindexing", and then infers inbounds based on that canonicalization.

Now that we canonicalize to i8 GEPs, this canonicalization is
essentially useless, as we'll discard it as soon as the GEP hits the
data-layout aware constant folder anyway. As such, I'd like to remove
this code entirely.

This shouldn't have any impact on optimization capabilities.
 [InferAlignment] Implement InferAlignmentPass 2023-09-20T06:33:36+00:00 Dhruv Chawla 44582521+dc03@users.noreply.github.com 2023-07-20T05:27:19+00:00 0f152a55d3e4e71f7c795bf555e40c8895b97077 This pass aims to infer alignment for instructions as a separate pass, to reduce redundant work done by InstCombine running multiple times. It runs late in the pipeline, just before the back-end passes where this information is most useful. Differential Revision: https://reviews.llvm.org/D158529 
This pass aims to infer alignment for instructions as a separate pass,
to reduce redundant work done by InstCombine running multiple times. It
runs late in the pipeline, just before the back-end passes where this
information is most useful.

Differential Revision: https://reviews.llvm.org/D158529
[InferAlignment] Create tests for InferAlignment pass 2023-09-20T06:33:36+00:00 Dhruv Chawla 44582521+dc03@users.noreply.github.com 2023-08-18T16:03:56+00:00 3978f37c0f1e368849ff594d9d603ec600010f7e These tests are in preparation for the InferAlignment pass. They consist mainly of tests that break when alignment inference is disabled in LoadInst and StoreInst within InstCombine. Differential Revision: https://reviews.llvm.org/D158530 
These tests are in preparation for the InferAlignment pass. They consist
mainly of tests that break when alignment inference is disabled in
LoadInst and StoreInst within InstCombine.

Differential Revision: https://reviews.llvm.org/D158530