is_within_lifetime in stdlib + constexpr print (implementation steals…

… from llvm#91895 as I thought I have an error)
hanickadot · Aug 19, 2024 · e79cf90 · e79cf90
1 parent c76cb33
commit e79cf90
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Showing 6 changed files with 169 additions and 122 deletions.
diff --git a/clang/include/clang/Basic/BuiltinHeaders.def b/clang/include/clang/Basic/BuiltinHeaders.def
@@ -37,6 +37,7 @@ HEADER(STRINGS_H, "strings.h")
 HEADER(STRING_H, "string.h")
 HEADER(UNISTD_H, "unistd.h")
 HEADER(UTILITY, "utility")
+HEADER(TYPE_TRAITS, "type_traits")
 HEADER(WCHAR_H, "wchar.h")
 HEADER(XMMINTRIN_H, "xmmintrin.h")
 

diff --git a/clang/include/clang/Basic/Builtins.td b/clang/include/clang/Basic/Builtins.td
@@ -4795,6 +4795,12 @@ def PointerTagValue : Builtin {
 
 def IsWithinLifeTime : Builtin {
   let Spellings = ["__builtin_is_within_lifetime"];
-  let Attributes = [Constexpr, NoThrow];
+  let Attributes = [Consteval, NoThrow];
   let Prototype = "bool(void const*)";
 }
+
+def ConstexprPrint : Builtin {
+  let Spellings = ["__constexpr_print"];
+  let Attributes = [Constexpr, NoThrow];
+  let Prototype = "void(char const*)";
+}