[llvm] [InstCombine] Add fold for fabs(-x) -> fabs(x) (PR #94183)

[Yingwei Zheng via llvm-commits]

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@@ -0,0 +1,57 @@
+; RUN: opt -S -passes=instcombine %s | FileCheck %s
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dtcxzyw wrote:

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


https://github.com/llvm/llvm-project/pull/94183