[clang] [llvm] [ARM] musttail fixes (PR #102896)

[Eli Friedman via cfe-commits]

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@@ -1,3 +1,4 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
 ; RUN: llc -mtriple armv7 -target-abi aapcs -float-abi soft -O0 -o - < %s \
 ; RUN:   | FileCheck %s -check-prefix CHECK-SOFT -check-prefix CHECK
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efriedma-quic wrote:

Remove the `-check-prefix CHECK` if the test doesn't need it.

https://github.com/llvm/llvm-project/pull/102896