1 files changed, 27 insertions, 0 deletions
diff --git a/compiler-rt/lib/builtins/truncsfhf2.c b/compiler-rt/lib/builtins/truncsfhf2.c
new file mode 100644
index 000000000000..1f17194c38e5
--- /dev/null
+++ b/compiler-rt/lib/builtins/truncsfhf2.c
@@ -0,0 +1,27 @@
+//===-- lib/truncsfhf2.c - single -> half 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
+//
+//===----------------------------------------------------------------------===//
+
+#define SRC_SINGLE
+#define DST_HALF
+#include "fp_trunc_impl.inc"
+
+// Use a forwarding definition and noinline to implement a poor man's alias,
+// as there isn't a good cross-platform way of defining one.
+COMPILER_RT_ABI NOINLINE uint16_t __truncsfhf2(float a) {
+  return __truncXfYf2__(a);
+}
+
+COMPILER_RT_ABI uint16_t __gnu_f2h_ieee(float a) { return __truncsfhf2(a); }
+
+#if defined(__ARM_EABI__)
+#if defined(COMPILER_RT_ARMHF_TARGET)
+AEABI_RTABI uint16_t __aeabi_f2h(float a) { return __truncsfhf2(a); }
+#else
+COMPILER_RT_ALIAS(__truncsfhf2, __aeabi_f2h)
+#endif
+#endif