[llvm] [ScheduleDAGFast] Fix crash due to incorrect live reg delay in fast scheduler (PR #200567)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,20 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=x86_64-unknown-linux -pre-RA-sched=fast %s -o - | FileCheck %s
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arsenm wrote:

```suggestion
; RUN: llc -mtriple=x86_64-unknown-linux -pre-RA-sched=fast < %s | FileCheck %s
```

https://github.com/llvm/llvm-project/pull/200567