[llvm] [AMDGPU] Move `AMDGPUAttributorPass` to full LTO post link stage (PR #102086)

[Matt Arsenault via llvm-commits]

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@@ -1,6 +1,6 @@
-; RUN: opt -mtriple=amdgcn--amdhsa -S -O3 -enable-unsafe-fp-math %s  | FileCheck -check-prefix=GCN -check-prefix=UNSAFE %s
-; RUN: opt -mtriple=amdgcn--amdhsa -S -O3 -enable-no-nans-fp-math %s | FileCheck -check-prefix=GCN -check-prefix=NONANS %s
-; RUN: opt -mtriple=amdgcn--amdhsa -S -O3 -enable-no-infs-fp-math %s | FileCheck -check-prefix=GCN -check-prefix=NOINFS %s
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arsenm wrote:

I'm surprised the attributor induced attributes are here in the first place. I would just leave this running non-LTO (also this test doesn't really belong in codegen. I'm also not sure why its running -O3 instead of just the inliner)

https://github.com/llvm/llvm-project/pull/102086