[libc++][ci] Removes C++2b selection option.

[mordante]

Since Clang 16 is no longer supported all compilers support C++23.

[llvmbot]

@llvm/pr-subscribers-libcxx

Author: Mark de Wever (mordante)

Changes

Since Clang 16 is no longer supported all compilers support C++23.

---

Full diff: https://github.com/llvm/llvm-project/pull/88557.diff

1 Files Affected:

• (modified) libcxx/utils/libcxx/test/params.py (-6)

diff --git a/libcxx/utils/libcxx/test/params.py b/libcxx/utils/libcxx/test/params.py
index 5e42562ed5db52..5bc6e101c15420 100644
--- a/libcxx/utils/libcxx/test/params.py
+++ b/libcxx/utils/libcxx/test/params.py
@@ -79,12 +79,6 @@
 def getStdFlag(cfg, std):
     if hasCompileFlag(cfg, "-std=" + std):
         return "-std=" + std
-    # TODO(LLVM-19) Remove the fallbacks needed for Clang 16.
-    fallbacks = {
-        "c++23": "c++2b",
-    }
-    if std in fallbacks and hasCompileFlag(cfg, "-std=" + fallbacks[std]):
-        return "-std=" + fallbacks[std]
     return None
 
 

[mordante]

It seems the Apple build bots still need this fallback option. So wait until the next Xcode release.

[ldionne]

LGTM once we're able to have a green CI run (once we update Xcode).

[philnik777]

@mordante this should be ready now, right?

[ldionne]

Rebased onto main to give it a shot.