| /* { dg-do compile } */ |
| /* { dg-options "-Os -mhw-div -mhw-mul -mhw-mulx" } */ |
| |
| #include <stdint.h> |
| #include <stddef.h> |
| |
| void foo(const uint8_t* str, uint32_t* res) |
| { |
| uint32_t rdVal0, rdVal1, rdVal2; |
| rdVal0 = rdVal1 = rdVal2 = 0; |
| unsigned c; |
| for (;;) { |
| c = *str++; |
| unsigned dig = c - '0'; |
| if (dig > 9) |
| break; // non-digit |
| uint64_t x10; |
| |
| x10 = (uint64_t)rdVal0*10 + dig; |
| rdVal0 = (uint32_t)x10; |
| dig = (uint32_t)(x10 >> 32); |
| |
| x10 = (uint64_t)rdVal1*10 + dig; |
| rdVal1 = (uint32_t)x10; |
| dig = (uint32_t)(x10 >> 32); |
| |
| rdVal2 = rdVal2*10 + dig; |
| } |
| res[0] = rdVal0; |
| res[1] = rdVal1; |
| res[2] = rdVal2; |
| } |
| |
| /* { dg-final { scan-assembler-times "mulxuu\t" 2 } } */ |
