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Revision tags: llvmorg-21-init, llvmorg-19.1.7, llvmorg-19.1.6, llvmorg-19.1.5, llvmorg-19.1.4, llvmorg-19.1.3, llvmorg-19.1.2, llvmorg-19.1.1, llvmorg-19.1.0, llvmorg-19.1.0-rc4 |
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4a2a1b51 |
| 22-Aug-2024 |
Vladimir Vereschaka <vvereschaka@accesssoftek.com> |
[libc++] Adjust armv7 XFAIL target triple for the setfill_wchar_max test. (#105586)
Also allow XFAIL for armv7-*-linux-gnueabihf targets, not only for
armv7l-*.
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Revision tags: llvmorg-19.1.0-rc3, llvmorg-19.1.0-rc2, llvmorg-19.1.0-rc1, llvmorg-20-init |
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ad154281 |
| 18-Jul-2024 |
David Tenty <daltenty@ibm.com> |
[NFC][libc++][test] loosen XFAIL condition for setfill_wchar_max.pass.cpp
So we can also match aarch64 triples which have four components instead of three when disabling the test, which the case on
[NFC][libc++][test] loosen XFAIL condition for setfill_wchar_max.pass.cpp
So we can also match aarch64 triples which have four components instead of three when disabling the test, which the case on some buildbots.
Follow on to #89305
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| #
194f98c2 |
| 17-Jul-2024 |
Xing Xue <xingxue@outlook.com> |
[libc++] basic_ios<wchar_t> cannot store fill character WCHAR_MAX (#89305)
`libcxx std::basic_ios` uses `WEOF` to indicate the `fill` value is
uninitialized. On some platforms (e.g AIX and zOS in 6
[libc++] basic_ios<wchar_t> cannot store fill character WCHAR_MAX (#89305)
`libcxx std::basic_ios` uses `WEOF` to indicate the `fill` value is
uninitialized. On some platforms (e.g AIX and zOS in 64-bit mode)
`wchar_t` is 4 bytes `unsigned` and `wint_t` is also 4 bytes which means
`WEOF` cannot be distinguished from `WCHAR_MAX` by
`std::char_traits<wchar_t>::eq_int_type()`, meaning this valid character
value cannot be stored on affected platforms (as the implementation
triggers reinitialization to `widen(’ ’)`).
This patch introduces a new helper class `_FillHelper` uses a boolean
variable to indicate whether the fill character has been initialized,
which is used by default in libcxx ABI version 2. The patch does not
affect ABI version 1 except for targets AIX in 32- and 64-bit and z/OS
in 64-bit (so that the layout of the implementation is compatible with
the current IBM system provided libc++)
This is a continuation of Phabricator patch
[D124555](https://reviews.llvm.org/D124555). This patch uses a modified
version of the [approach](https://reviews.llvm.org/D124555#3566746)
suggested by @ldionne .
---------
Co-authored-by: Louis Dionne <ldionne.2@gmail.com>
Co-authored-by: David Tenty <daltenty.dev@gmail.com>
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