diff options
Diffstat (limited to 'compiler-rt/lib/builtins/ashldi3.c')
| -rw-r--r-- | compiler-rt/lib/builtins/ashldi3.c | 33 |
1 files changed, 15 insertions, 18 deletions
diff --git a/compiler-rt/lib/builtins/ashldi3.c b/compiler-rt/lib/builtins/ashldi3.c index 8fd06740dc2..66748c6000f 100644 --- a/compiler-rt/lib/builtins/ashldi3.c +++ b/compiler-rt/lib/builtins/ashldi3.c @@ -1,33 +1,30 @@ -/* ====-- ashldi3.c - Implement __ashldi3 -----------------------------------=== - * - * 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 __ashldi3 for the compiler_rt library. - * - * ===----------------------------------------------------------------------=== - */ +// ====-- ashldi3.c - Implement __ashldi3 ---------------------------------===// +// +// 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 __ashldi3 for the compiler_rt library. +// +//===----------------------------------------------------------------------===// #include "int_lib.h" -/* Returns: a << b */ +// Returns: a << b -/* Precondition: 0 <= b < bits_in_dword */ +// Precondition: 0 <= b < bits_in_dword COMPILER_RT_ABI di_int __ashldi3(di_int a, si_int b) { const int bits_in_word = (int)(sizeof(si_int) * CHAR_BIT); dwords input; dwords result; input.all = a; - if (b & bits_in_word) /* bits_in_word <= b < bits_in_dword */ - { + if (b & bits_in_word) /* bits_in_word <= b < bits_in_dword */ { result.s.low = 0; result.s.high = input.s.low << (b - bits_in_word); - } else /* 0 <= b < bits_in_word */ - { + } else /* 0 <= b < bits_in_word */ { if (b == 0) return a; result.s.low = input.s.low << b; |
