1 files changed, 42 insertions, 49 deletions
diff --git a/lib/builtins/multi3.c b/lib/builtins/multi3.c
index e0d52d430..d9d8b59cd 100644
--- a/lib/builtins/multi3.c
+++ b/lib/builtins/multi3.c
@@ -1,58 +1,51 @@
-/* ===-- multi3.c - Implement __multi3 -------------------------------------===
- *
- *                     The LLVM Compiler Infrastructure
- *
- * This file is dual licensed under the MIT and the University of Illinois Open
- * Source Licenses. See LICENSE.TXT for details.
- *
- * ===----------------------------------------------------------------------===
-
- * This file implements __multi3 for the compiler_rt library.
- *
- * ===----------------------------------------------------------------------===
- */
+//===-- multi3.c - Implement __multi3 -------------------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __multi3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
 
 #include "int_lib.h"
 
 #ifdef CRT_HAS_128BIT
 
-/* Returns: a * b */
-
-static
-ti_int
-__mulddi3(du_int a, du_int b)
-{
-    twords r;
-    const int bits_in_dword_2 = (int)(sizeof(di_int) * CHAR_BIT) / 2;
-    const du_int lower_mask = (du_int)~0 >> bits_in_dword_2;
-    r.s.low = (a & lower_mask) * (b & lower_mask);
-    du_int t = r.s.low >> bits_in_dword_2;
-    r.s.low &= lower_mask;
-    t += (a >> bits_in_dword_2) * (b & lower_mask);
-    r.s.low += (t & lower_mask) << bits_in_dword_2;
-    r.s.high = t >> bits_in_dword_2;
-    t = r.s.low >> bits_in_dword_2;
-    r.s.low &= lower_mask;
-    t += (b >> bits_in_dword_2) * (a & lower_mask);
-    r.s.low += (t & lower_mask) << bits_in_dword_2;
-    r.s.high += t >> bits_in_dword_2;
-    r.s.high += (a >> bits_in_dword_2) * (b >> bits_in_dword_2);
-    return r.all;
+// Returns: a * b
+
+static ti_int __mulddi3(du_int a, du_int b) {
+  twords r;
+  const int bits_in_dword_2 = (int)(sizeof(di_int) * CHAR_BIT) / 2;
+  const du_int lower_mask = (du_int)~0 >> bits_in_dword_2;
+  r.s.low = (a & lower_mask) * (b & lower_mask);
+  du_int t = r.s.low >> bits_in_dword_2;
+  r.s.low &= lower_mask;
+  t += (a >> bits_in_dword_2) * (b & lower_mask);
+  r.s.low += (t & lower_mask) << bits_in_dword_2;
+  r.s.high = t >> bits_in_dword_2;
+  t = r.s.low >> bits_in_dword_2;
+  r.s.low &= lower_mask;
+  t += (b >> bits_in_dword_2) * (a & lower_mask);
+  r.s.low += (t & lower_mask) << bits_in_dword_2;
+  r.s.high += t >> bits_in_dword_2;
+  r.s.high += (a >> bits_in_dword_2) * (b >> bits_in_dword_2);
+  return r.all;
 }
 
-/* Returns: a * b */
-
-COMPILER_RT_ABI ti_int
-__multi3(ti_int a, ti_int b)
-{
-    twords x;
-    x.all = a;
-    twords y;
-    y.all = b;
-    twords r;
-    r.all = __mulddi3(x.s.low, y.s.low);
-    r.s.high += x.s.high * y.s.low + x.s.low * y.s.high;
-    return r.all;
+// Returns: a * b
+
+COMPILER_RT_ABI ti_int __multi3(ti_int a, ti_int b) {
+  twords x;
+  x.all = a;
+  twords y;
+  y.all = b;
+  twords r;
+  r.all = __mulddi3(x.s.low, y.s.low);
+  r.s.high += x.s.high * y.s.low + x.s.low * y.s.high;
+  return r.all;
 }
 
-#endif /* CRT_HAS_128BIT */
+#endif // CRT_HAS_128BIT