[llvm] [DAG] Teach SelectionDAGBuilder to read parameter alignment of compressstore/expandload. (PR #83763)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,33 @@
+; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -start-after=codegenprepare -stop-before finalize-isel | FileCheck %s
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arsenm wrote:

why do you need -start-after? 

https://github.com/llvm/llvm-project/pull/83763