1 files changed, 24 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/extendxftf2.c b/contrib/llvm-project/compiler-rt/lib/builtins/extendxftf2.c
new file mode 100644
index 000000000000..c1d97b5cfa15
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/builtins/extendxftf2.c
@@ -0,0 +1,24 @@
+//===-- lib/extendxftf2.c - long double -> quad conversion --------*- C -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// Assumption: long double is a IEEE 80 bit floating point type padded to 128
+// bits.
+
+#define QUAD_PRECISION
+#include "fp_lib.h"
+
+#if defined(CRT_HAS_TF_MODE) && __LDBL_MANT_DIG__ == 64 && defined(__x86_64__)
+#define SRC_80
+#define DST_QUAD
+#include "fp_extend_impl.inc"
+
+COMPILER_RT_ABI tf_float __extendxftf2(xf_float a) {
+  return __extendXfYf2__(a);
+}
+
+#endif