[llvm] [llvm][ARM]Add widen strings pass (PR #107120)

[David Green via llvm-commits]

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@@ -0,0 +1,25 @@
+; RUN: opt < %s -mtriple=arm-arm-none-eabi -passes="default<O2>,globalopt" -S | FileCheck %s
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davemgreen wrote:

It should be enough to test with -passes=globalopt, and shouldn't need the whole pass pipeline.

https://github.com/llvm/llvm-project/pull/107120