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-rw-r--r--lib/builtins/modti3.c48
1 files changed, 22 insertions, 26 deletions
diff --git a/lib/builtins/modti3.c b/lib/builtins/modti3.c
index d505c07ac..d11fe220b 100644
--- a/lib/builtins/modti3.c
+++ b/lib/builtins/modti3.c
@@ -1,34 +1,30 @@
-/* ===-- modti3.c - Implement __modti3 -------------------------------------===
- *
- * 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 __modti3 for the compiler_rt library.
- *
- * ===----------------------------------------------------------------------===
- */
+//===-- modti3.c - Implement __modti3 -------------------------------------===//
+//
+// 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 __modti3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
#include "int_lib.h"
#ifdef CRT_HAS_128BIT
-/*Returns: a % b */
+// Returns: a % b
-COMPILER_RT_ABI ti_int
-__modti3(ti_int a, ti_int b)
-{
- const int bits_in_tword_m1 = (int)(sizeof(ti_int) * CHAR_BIT) - 1;
- ti_int s = b >> bits_in_tword_m1; /* s = b < 0 ? -1 : 0 */
- b = (b ^ s) - s; /* negate if s == -1 */
- s = a >> bits_in_tword_m1; /* s = a < 0 ? -1 : 0 */
- a = (a ^ s) - s; /* negate if s == -1 */
- tu_int r;
- __udivmodti4(a, b, &r);
- return ((ti_int)r ^ s) - s; /* negate if s == -1 */
+COMPILER_RT_ABI ti_int __modti3(ti_int a, ti_int b) {
+ const int bits_in_tword_m1 = (int)(sizeof(ti_int) * CHAR_BIT) - 1;
+ ti_int s = b >> bits_in_tword_m1; // s = b < 0 ? -1 : 0
+ b = (b ^ s) - s; // negate if s == -1
+ s = a >> bits_in_tword_m1; // s = a < 0 ? -1 : 0
+ a = (a ^ s) - s; // negate if s == -1
+ tu_int r;
+ __udivmodti4(a, b, &r);
+ return ((ti_int)r ^ s) - s; // negate if s == -1
}
-#endif /* CRT_HAS_128BIT */
+#endif // CRT_HAS_128BIT