llvm-project.git/llvm/test/CodeGen/SystemZ/vec-load-element.ll, branch users/nico/python-2

[Tests] Add disjoint flag to some tests (NFC)

2023-12-05T13:09:36+00:00

These tests rely on SCEV looking recognizing an "or" with no common
bits as an "add". Add the disjoint flag to relevant or instructions
in preparation for switching SCEV to use the flag instead of the
ValueTracking query. The IR with disjoint flag matches what
InstCombine would produce.

[SystemZ][NFC] Opaque pointer migration.

2022-10-11T21:09:43+00:00

The LIT test cases were migrated with the script provided by
Nikita Popov.

No manual changes were made. Committed without review since
no functional changes, after consultation with uweigand.

[SelectionDAGBuilder] Chain prefetches less aggressively.

2018-01-10T09:33:00+00:00

Prefetches used to always be chained between any previous and following
memory accesses. The problem with this was that later optimizations, such as
folding of a load into the user instruction, got disrupted.

This patch relaxes the chaining of prefetches in order to remedy this.

Reveiw: Hal Finkel
https://reviews.llvm.org/D38886

llvm-svn: 322163