[llvm] [Hexagon] Add GlobalArrayAlignment pass (PR #205293)

[Santanu Das via llvm-commits]

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+; RUN: llc -mtriple=hexagon -O3 -hexagon-align-global-arrays \
+; RUN:   -stop-after=hexagon-global-array-alignment < %s | FileCheck %s
+; RUN: llc -mtriple=hexagon -O3 -stop-after=hexagon-global-array-alignment < %s \
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quic-santdas wrote:

RUN commands for Os (opt for size) should also be added.

https://github.com/llvm/llvm-project/pull/205293