[llvm] [Transforms] Create more optimizing functions to fold inverse trig pairs (PR #77799)

[Yingwei Zheng via llvm-commits]

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@@ -0,0 +1,59 @@
+; RUN: opt < %s -instcombine -S | FileCheck %s
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dtcxzyw wrote:

Please generate check lines with `llvm/utils/update_test_checks.py`.

https://github.com/llvm/llvm-project/pull/77799