[llvm] [Hexagon] Explicitly truncate constant in UAddSubO (PR #127360)

[Brian Cain via llvm-commits]

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@@ -0,0 +1,22 @@
+; RUN: llc -mtriple=hexagon -O0 < %s | FileCheck %s
+; REQUIRES: asserts
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androm3da wrote:

The original failure (#127296) happens with assertions enabled.  I removed it from my latest patch.  But I just tried a build without asserts and it looks like the codegen is no different with this fix.  So IIUC that means I want the asserts back in this test case, right?

https://github.com/llvm/llvm-project/pull/127360