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[llvm-lit] Add REQUIRES: shell to BOLT permission test for lit internal shell (#103012)

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This patch adds the `REQUIRES: shell` directive to the BOLT permission
test to ensure it only runs in environments with a full-featured
Unix-like shell. This change is necessary because the test relies on
advanced shell capabilities that are not supported by lit's internal
shell.

**Reasoning:** The BOLT permission test uses features like running
commands in the background with `&`, performing arithmetic operations,
and handling special number formats (octal). These features require a
more capable shell than what lit's internal shell provides. Without a
proper shell, the test could fail or behave unpredictably.

This change is relevant for enabling the lit internal shell by default,
as outlined in [[RFC] Enabling the Lit Internal Shell by
Default](https://discourse.llvm.org/t/rfc-enabling-the-lit-internal-shell-by-default/80179)
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Harini0924 2024-08-13 19:58:59 -07:00 committed by GitHub
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bolt/test/permission.test
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@ -4,7 +4,7 @@
# This test performs a logical AND operation on the results of the `stat -c %a
# %t.bolt` and `umask` commands (both results are displayed in octal), and
# checks whether the result is equal to 0.
REQUIRES: system-linux
REQUIRES: shell, system-linux
RUN: %clang %cflags %p/Inputs/hello.c -o %t -Wl,-q
RUN: llvm-bolt %t -o %t.bolt