diff options
Diffstat (limited to 'compiler-rt/lib/builtins/ashrdi3.c')
| -rw-r--r-- | compiler-rt/lib/builtins/ashrdi3.c | 42 |
1 files changed, 20 insertions, 22 deletions
diff --git a/compiler-rt/lib/builtins/ashrdi3.c b/compiler-rt/lib/builtins/ashrdi3.c index fe97245e5d9..3f2c2ff86c8 100644 --- a/compiler-rt/lib/builtins/ashrdi3.c +++ b/compiler-rt/lib/builtins/ashrdi3.c @@ -17,29 +17,27 @@ /* Precondition: 0 <= b < bits_in_dword */ -COMPILER_RT_ABI di_int -__ashrdi3(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 */ - { - /* result.s.high = input.s.high < 0 ? -1 : 0 */ - result.s.high = input.s.high >> (bits_in_word - 1); - result.s.low = input.s.high >> (b - bits_in_word); - } - else /* 0 <= b < bits_in_word */ - { - if (b == 0) - return a; - result.s.high = input.s.high >> b; - result.s.low = (input.s.high << (bits_in_word - b)) | (input.s.low >> b); - } - return result.all; +COMPILER_RT_ABI di_int __ashrdi3(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 */ + { + /* result.s.high = input.s.high < 0 ? -1 : 0 */ + result.s.high = input.s.high >> (bits_in_word - 1); + result.s.low = input.s.high >> (b - bits_in_word); + } else /* 0 <= b < bits_in_word */ + { + if (b == 0) + return a; + result.s.high = input.s.high >> b; + result.s.low = (input.s.high << (bits_in_word - b)) | (input.s.low >> b); + } + return result.all; } #if defined(__ARM_EABI__) -AEABI_RTABI di_int __aeabi_lasr(di_int a, si_int b) COMPILER_RT_ALIAS(__ashrdi3); +AEABI_RTABI di_int __aeabi_lasr(di_int a, si_int b) + COMPILER_RT_ALIAS(__ashrdi3); #endif |
