[llvm] [MachineOutliner] Avoid ranges that cross bundle boundary (PR #148977)

[Ellis Hoag via llvm-commits]

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@@ -40,3 +40,52 @@ body:             |
     $x9 = ADDXri $x9, 16, 0
     $x16 = ADDXri killed $x16, 16, 0
     RET undef $x9
+...
+---
+name:           unsafe_range_bundle
+tracksRegLiveness: true
+machineFunctionInfo:
+  hasRedZone:      false
+body:             |
+  bb.0:
+    liveins: $x0
+    ; Begin safe range of 3 instructions
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ellishg wrote:

These comments were copied from the test `unsafe_range_in_middle` above, and I didn't check if they were correct or not. I simply found some tests that had separate ranges and inserted a bundle that triggered the crash.

https://github.com/llvm/llvm-project/pull/148977