/* { dg-do compile } */ | |
/* { dg-options "-O2 -ftree-vectorize -mssse3 -mtune=corei7" } */ | |
#define byte unsigned char | |
void | |
matrix_mul (byte *in, byte *out, int size) | |
{ | |
int i; | |
for (i = 0; i < size; i++) | |
{ | |
byte in0 = in[0]; | |
byte in1 = in[1]; | |
byte in2 = in[2]; | |
byte out0, out1, out2, out3; | |
out0 = in0 + in1; | |
out1 = in0 + in2; | |
out2 = in1 + in2; | |
out3 = in0 + in1 + in2; | |
out[0] = out0; | |
out[1] = out1; | |
out[2] = out2; | |
out[3] = out3; | |
in += 3; | |
out += 4; | |
} | |
} | |
/* { dg-final { scan-assembler "pshufb" } } */ |