| // See LICENSE for license details. |
| |
| #ifndef __UTIL_H |
| #define __UTIL_H |
| |
| extern void setStats(int enable); |
| |
| #include <stdint.h> |
| |
| #define static_assert(cond) switch(0) { case 0: case !!(long)(cond): ; } |
| |
| static int verify(int n, const volatile int* test, const int* verify) |
| { |
| int i; |
| // Unrolled for faster verification |
| for (i = 0; i < n/2*2; i+=2) |
| { |
| int t0 = test[i], t1 = test[i+1]; |
| int v0 = verify[i], v1 = verify[i+1]; |
| if (t0 != v0) return i+1; |
| if (t1 != v1) return i+2; |
| } |
| if (n % 2 != 0 && test[n-1] != verify[n-1]) |
| return n; |
| return 0; |
| } |
| |
| static int verifyDouble(int n, const volatile double* test, const double* verify) |
| { |
| int i; |
| // Unrolled for faster verification |
| for (i = 0; i < n/2*2; i+=2) |
| { |
| double t0 = test[i], t1 = test[i+1]; |
| double v0 = verify[i], v1 = verify[i+1]; |
| int eq1 = t0 == v0, eq2 = t1 == v1; |
| if (!(eq1 & eq2)) return i+1+eq1; |
| } |
| if (n % 2 != 0 && test[n-1] != verify[n-1]) |
| return n; |
| return 0; |
| } |
| |
| static void __attribute__((noinline)) barrier(int ncores) |
| { |
| static volatile int sense; |
| static volatile int count; |
| static __thread int threadsense; |
| |
| __sync_synchronize(); |
| |
| threadsense = !threadsense; |
| if (__sync_fetch_and_add(&count, 1) == ncores-1) |
| { |
| count = 0; |
| sense = threadsense; |
| } |
| else while(sense != threadsense) |
| ; |
| |
| __sync_synchronize(); |
| } |
| |
| static uint64_t lfsr(uint64_t x) |
| { |
| uint64_t bit = (x ^ (x >> 1)) & 1; |
| return (x >> 1) | (bit << 62); |
| } |
| |
| static uintptr_t insn_len(uintptr_t pc) |
| { |
| return (*(unsigned short*)pc & 3) ? 4 : 2; |
| } |
| |
| // #ifdef __riscv |
| // #include "encoding.h" |
| // #endif |
| |
| #define stringify_1(s) #s |
| #define stringify(s) stringify_1(s) |
| #define stats(code, iter) do { \ |
| unsigned long _c = -read_csr(mcycle), _i = -read_csr(minstret); \ |
| code; \ |
| _c += read_csr(mcycle), _i += read_csr(minstret); \ |
| if (cid == 0) \ |
| printf("\n%s: %ld cycles, %ld.%ld cycles/iter, %ld.%ld CPI\n", \ |
| stringify(code), _c, _c/iter, 10*_c/iter%10, _c/_i, 10*_c/_i%10); \ |
| } while(0) |
| |
| #endif //__UTIL_H |