[llvm] [NVPTX] Add NVPTXIncreaseAligmentPass to improve vectorization (PR #144958)

[Artem Belevich via llvm-commits]

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@@ -0,0 +1,102 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt -S -passes=nvptx-increase-local-alignment -nvptx-ensure-minimum-local-alignment=1 < %s | FileCheck %s --check-prefixes=COMMON,MIN-1
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Artem-B wrote:

Will `--nvptx-ensure-minimum-local-alignment=0` result in the current behavior when locals are naturally aligned? We may want to test that, too.

https://github.com/llvm/llvm-project/pull/144958