diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/builtins/mulvti3.c')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/lib/builtins/mulvti3.c | 33 |
1 files changed, 4 insertions, 29 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/mulvti3.c b/contrib/llvm-project/compiler-rt/lib/builtins/mulvti3.c index 03963a0ca694..ba355149f9a7 100644 --- a/contrib/llvm-project/compiler-rt/lib/builtins/mulvti3.c +++ b/contrib/llvm-project/compiler-rt/lib/builtins/mulvti3.c @@ -18,34 +18,9 @@ // 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(); - } - return a * b; -} +#define fixint_t ti_int +#include "int_mulv_impl.inc" + +COMPILER_RT_ABI ti_int __mulvti3(ti_int a, ti_int b) { return __mulvXi3(a, b); } #endif // CRT_HAS_128BIT |