[compiler-rt] [flang] [llvm] [AArch64] fix trampoline implementation: use X15 (PR #126743)

[Jameson Nash via llvm-commits]

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@@ -1,35 +1,26 @@
-; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+;; Testing that nest uses x15 on all calling conventions (except Arm64EC)
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vtjnash wrote:

arm64ec is fine and should be fully implemented here now (following the existing documentation in CC_AArch64_Arm64EC_Thunk), just the test comment itself is not applicable to that platform

https://github.com/llvm/llvm-project/pull/126743