[llvm] [AMDGPU] Fold redundant inf/nan checks into frexp instructions (PR #214936)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,528 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck -check-prefix=GFX9 %s
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arsenm wrote:

Use subarch triples 

https://github.com/llvm/llvm-project/pull/214936