[llvm] [instcombine][x86]: simplifyx86fpmaxmin - allow negzero for single operand (PR #180418)

[Phoebe Wang via llvm-commits]

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@@ -0,0 +1,46 @@
+; RUN: opt -passes=instcombine -mtriple=x86_64-unknown-unknown < %s -S | FileCheck %s
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phoebewang wrote:

Update test through `update_test_checks.py`

https://github.com/llvm/llvm-project/pull/180418