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1.1 ! root 1: /* See if various MMX/SSE SSSE3 instructions give expected results */ ! 2: #include <stdio.h> ! 3: #include <string.h> ! 4: #include <stdint.h> ! 5: ! 6: int main(int argc, char *argv[]) { ! 7: char hello[16]; ! 8: const char ehlo[8] = "EHLO "; ! 9: uint64_t mask = 0x8080800302020001; ! 10: ! 11: uint64_t a = 0x0000000000090007; ! 12: uint64_t b = 0x0000000000000000; ! 13: uint32_t c; ! 14: uint16_t d; ! 15: ! 16: const char e[16] = "LLOaaaaaaaaaaaaa"; ! 17: const char f[16] = "aaaaaaaaaaaaaaHE"; ! 18: ! 19: /* pshufb mm1/xmm1, mm2/xmm2 */ ! 20: asm volatile ("movq (%0), %%mm0" : : "r" (ehlo) : "mm0", "mm1"); ! 21: asm volatile ("movq %0, %%mm1" : : "m" (mask)); ! 22: asm volatile ("pshufb %mm1, %mm0"); ! 23: asm volatile ("movq %%mm0, %0" : "=m" (hello)); ! 24: printf("%s\n", hello); ! 25: ! 26: /* pshufb mm1/xmm1, m64/m128 */ ! 27: asm volatile ("movq (%0), %%mm0" : : "r" (ehlo) : "mm0"); ! 28: asm volatile ("pshufb %0, %%mm0" : : "m" (mask)); ! 29: asm volatile ("movq %%mm0, %0" : "=m" (hello)); ! 30: printf("%s\n", hello); ! 31: ! 32: /* psubsw mm1/xmm1, m64/m128 */ ! 33: asm volatile ("movq %0, %%mm0" : : "r" (a) : "mm0"); ! 34: asm volatile ("phsubsw %0, %%mm0" : : "m" (b)); ! 35: asm volatile ("movq %%mm0, %0" : "=m" (a)); ! 36: printf("%i - %i = %i\n", 9, 7, -(int16_t) a); ! 37: ! 38: /* palignr mm1/xmm1, m64/m128, imm8 */ ! 39: asm volatile ("movdqa (%0), %%xmm0" : : "r" (e) : "xmm0"); ! 40: asm volatile ("palignr $14, (%0), %%xmm0" : : "r" (f)); ! 41: asm volatile ("movdqa %%xmm0, (%0)" : : "r" (hello)); ! 42: printf("%5.5s\n", hello); ! 43: ! 44: #if 1 /* SSE4 */ ! 45: /* popcnt r64, r/m64 */ ! 46: asm volatile ("movq $0x8421000010009c63, %%rax" : : : "rax"); ! 47: asm volatile ("popcnt %%ax, %%dx" : : : "dx"); ! 48: asm volatile ("popcnt %%eax, %%ecx" : : : "ecx"); ! 49: asm volatile ("popcnt %rax, %rax"); ! 50: asm volatile ("movq %%rax, %0" : "=m" (a)); ! 51: asm volatile ("movl %%ecx, %0" : "=m" (c)); ! 52: asm volatile ("movw %%dx, %0" : "=m" (d)); ! 53: printf("%i = %i\n%i = %i = %i\n", 13, (int) a, 9, c, d + 1); ! 54: #endif ! 55: ! 56: return 0; ! 57: }
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