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authorJordan Rupprecht <rupprecht@google.com>2019-05-14 21:58:59 +0000
committerJordan Rupprecht <rupprecht@google.com>2019-05-14 21:58:59 +0000
commitb6bc976d7be8ee56d3be4b6dbd2f3ab0a4021c86 (patch)
treef5ed5db8cb5d237a073ea00c4d4cd63153a16a6c /lib/builtins/ffsti2.c
parent05342ccc9cff16425c0a831fddd510879544a0bf (diff)
parent098ca93185735ec3687106d0967a70fc99a85059 (diff)
downloadcompiler-rt-b6bc976d7be8ee56d3be4b6dbd2f3ab0a4021c86.tar.gz
Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103google/stable
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/builtins/ffsti2.c')
-rw-r--r--lib/builtins/ffsti2.c52
1 files changed, 23 insertions, 29 deletions
diff --git a/lib/builtins/ffsti2.c b/lib/builtins/ffsti2.c
index dcdb3bd7f..a2d7ce08a 100644
--- a/lib/builtins/ffsti2.c
+++ b/lib/builtins/ffsti2.c
@@ -1,37 +1,31 @@
-/* ===-- ffsti2.c - Implement __ffsti2 -------------------------------------===
- *
- * 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 __ffsti2 for the compiler_rt library.
- *
- * ===----------------------------------------------------------------------===
- */
+//===-- ffsti2.c - Implement __ffsti2 -------------------------------------===//
+//
+// 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 __ffsti2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
#include "int_lib.h"
#ifdef CRT_HAS_128BIT
-/* Returns: the index of the least significant 1-bit in a, or
- * the value zero if a is zero. The least significant bit is index one.
- */
+// Returns: the index of the least significant 1-bit in a, or
+// the value zero if a is zero. The least significant bit is index one.
-COMPILER_RT_ABI si_int
-__ffsti2(ti_int a)
-{
- twords x;
- x.all = a;
- if (x.s.low == 0)
- {
- if (x.s.high == 0)
- return 0;
- return __builtin_ctzll(x.s.high) + (1 + sizeof(di_int) * CHAR_BIT);
- }
- return __builtin_ctzll(x.s.low) + 1;
+COMPILER_RT_ABI si_int __ffsti2(ti_int a) {
+ twords x;
+ x.all = a;
+ if (x.s.low == 0) {
+ if (x.s.high == 0)
+ return 0;
+ return __builtin_ctzll(x.s.high) + (1 + sizeof(di_int) * CHAR_BIT);
+ }
+ return __builtin_ctzll(x.s.low) + 1;
}
-#endif /* CRT_HAS_128BIT */
+#endif // CRT_HAS_128BIT