[llvm] [RegAlloc] Consider rematerialization over CSR use (PR #206756)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,76 @@
+# RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 -run-pass=greedy %s -o - | FileCheck %s
+
+--- |
+  target triple = "amdgcn-amd-amdhsa"
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arsenm wrote:

```suggestion
# RUN: llc -mtriple=amdgpu9.00-amd-amdhsa -run-pass=greedy %s -o - | FileCheck %s

--- |
```

https://github.com/llvm/llvm-project/pull/206756