[llvm] [InstCombine] Added pattern for recognising the construction of packed integers. (PR #147414)

[Simon Pilgrim via llvm-commits]

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@@ -0,0 +1,109 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt -S -passes=instcombine %s | FileCheck %s
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RKSimon wrote:

Add -data-layout="e" and -data-layout="E" RUNs to add some endian coverage

https://github.com/llvm/llvm-project/pull/147414