================
@@ -797,6 +797,175 @@ def StdcRotateRight : Builtin {
let Prototype = "void(...)";
}
+def StdcLeadingZeros: Builtin {
+ let Spellings = ["__builtin_stdc_leading_zeros"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcLeadingOnes: Builtin {
+ let Spellings = ["__builtin_stdc_leading_ones"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcTrailingZeros: Builtin {
+ let Spellings = ["__builtin_stdc_trailing_zeros"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcTrailingOnes: Builtin {
+ let Spellings = ["__builtin_stdc_trailing_ones"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcFirstLeadingZero: Builtin {
+ let Spellings = ["__builtin_stdc_first_leading_zero"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcFirstLeadingOne: Builtin {
+ let Spellings = ["__builtin_stdc_first_leading_one"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcFirstTrailingZero: Builtin {
+ let Spellings = ["__builtin_stdc_first_trailing_zero"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcFirstTrailingOne: Builtin {
+ let Spellings = ["__builtin_stdc_first_trailing_one"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcCountZeros: Builtin {
+ let Spellings = ["__builtin_stdc_count_zeros"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcCountOnes: Builtin {
+ let Spellings = ["__builtin_stdc_count_ones"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcHasSingleBit: Builtin {
+ let Spellings = ["__builtin_stdc_has_single_bit"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "bool(...)";
+}
+
+def StdcBitWidth: Builtin {
+ let Spellings = ["__builtin_stdc_bit_width"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcBitFloor: Builtin {
+ let Spellings = ["__builtin_stdc_bit_floor"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcBitCeil: Builtin {
+ let Spellings = ["__builtin_stdc_bit_ceil"];
+ let Attributes = [NoThrow, Const, Constexpr, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcLeadingZerosLib: LibBuiltin<"stdbit.h", "C23_LANG"> {
+ let Spellings = ["stdc_leading_zeros"];
+ let Attributes = [NoThrow, Const, CustomTypeChecking];
+ let Prototype = "void(...)";
+}
+
+def StdcLeadingOnesLib: LibBuiltin<"stdbit.h", "C23_LANG"> {
+ let Spellings = ["stdc_leading_ones"];
----------------
efriedma-quic wrote:
I guess for the sake of completeness, we should also have those variants, but
I'm not sure anyone will actually use them. Anyway, separate patch.
https://github.com/llvm/llvm-project/pull/185978
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