vsk added inline comments.
================
Comment at:
lldb/packages/Python/lldbsuite/test/functionalities/param_entry_vals/basic_entry_values_x86_64/main.cpp:159
// FUNC11-BT: func11_tailcalled{{.*}}
// FUNC11-BT-NEXT: func12{{.*}} [artificial]
use(x);
----------------
The failure was:
```
main.cpp:159:21: error: FUNC11-BT-NEXT: expected string not found in input
// FUNC11-BT-NEXT: func12{{.*}} [artificial]
^
<stdin>:3:2: note: scanning from here
frame #1: 0x00000001079eae69 a.out`func12(sink=0x00007ffee8215cb4, x=123) at
main.cpp:179:3 [opt]
```
The added `DESTROY_RBX` asm might confuse TailRecursionElimination into
believing that the callee accesses the caller's stack. Could you double-check
that a tail call is actually emitted in `func12` (something like `jmp *%rax`)?
If it //is//, this is a pre-existing lldb bug, so the func12 test should be
disabled.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D68209/new/
https://reviews.llvm.org/D68209
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