vendor/compiler-rt/compiler-rt-trunk-r366426

1 files changed, 41 insertions, 50 deletions

diff --git a/lib/builtins/mulvti3.c b/lib/builtins/mulvti3.c
index f4c7d1612ba93..03963a0ca694f 100644
--- a/lib/builtins/mulvti3.c
+++ b/lib/builtins/mulvti3.c
@@ -1,60 +1,51 @@
-/* ===-- mulvti3.c - Implement __mulvti3 -----------------------------------===
- *
- *                     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 __mulvti3 for the compiler_rt library.
- *
- * ===----------------------------------------------------------------------===
- */
+//===-- mulvti3.c - Implement __mulvti3 -----------------------------------===//
+//
+// 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 __mulvti3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
 
 #include "int_lib.h"
 
 #ifdef CRT_HAS_128BIT
 
-/* Returns: a * b */
+// Returns: a * b
 
-/* Effects: aborts if a * b overflows */
+// Effects: aborts if a * b overflows
 
-COMPILER_RT_ABI ti_int
-__mulvti3(ti_int a, ti_int b)
-{
-    const int N = (int)(sizeof(ti_int) * CHAR_BIT);
-    const ti_int MIN = (ti_int)1 << (N-1);
-    const ti_int MAX = ~MIN;
-    if (a == MIN)
-    {
-        if (b == 0 || b == 1)
-            return a * b;
-        compilerrt_abort();
-    }
-    if (b == MIN)
-    {
-        if (a == 0 || a == 1)
-            return a * b;
-        compilerrt_abort();
-    }
-    ti_int sa = a >> (N - 1);
-    ti_int abs_a = (a ^ sa) - sa;
-    ti_int sb = b >> (N - 1);
-    ti_int abs_b = (b ^ sb) - sb;
-    if (abs_a < 2 || abs_b < 2)
-        return a * b;
-    if (sa == sb)
-    {
-        if (abs_a > MAX / abs_b)
-            compilerrt_abort();
-    }
-    else
-    {
-        if (abs_a > MIN / -abs_b)
-            compilerrt_abort();
-    }
+COMPILER_RT_ABI ti_int __mulvti3(ti_int a, ti_int b) {
+  const int N = (int)(sizeof(ti_int) * CHAR_BIT);
+  const ti_int MIN = (ti_int)1 << (N - 1);
+  const ti_int MAX = ~MIN;
+  if (a == MIN) {
+    if (b == 0 || b == 1)
+      return a * b;
+    compilerrt_abort();
+  }
+  if (b == MIN) {
+    if (a == 0 || a == 1)
+      return a * b;
+    compilerrt_abort();
+  }
+  ti_int sa = a >> (N - 1);
+  ti_int abs_a = (a ^ sa) - sa;
+  ti_int sb = b >> (N - 1);
+  ti_int abs_b = (b ^ sb) - sb;
+  if (abs_a < 2 || abs_b < 2)
     return a * b;
+  if (sa == sb) {
+    if (abs_a > MAX / abs_b)
+      compilerrt_abort();
+  } else {
+    if (abs_a > MIN / -abs_b)
+      compilerrt_abort();
+  }
+  return a * b;
 }
 
-#endif /* CRT_HAS_128BIT */
+#endif // CRT_HAS_128BIT