[llvm] [X86][GlobalISel] Enable G_LROUND/G_LLROUND with libcall mapping (PR #125096)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,139 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc < %s -mtriple=i686-linux-gnu | FileCheck %s --check-prefixes=X86,SDAG-X86
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arsenm wrote:

Should explicitly disable global isel for the DAG run lines.

Can you merge this into an existing test? If not should probably be in the GlobalISel subdirectory 

https://github.com/llvm/llvm-project/pull/125096