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95 changes: 28 additions & 67 deletions bench/algorithm/mandelbrot/1.d
Original file line number Diff line number Diff line change
Expand Up @@ -6,78 +6,39 @@ import std.digest.md;

static immutable VLEN = 8;

version(LDC){
import core.simd;
alias Vec = double8;

pragma(inline, true):
ubyte mbrot8(Vec cr, double civ) {
immutable Vec ci = civ;
Vec zr = 0.0;
Vec zi = 0.0;
Vec tr = 0.0;
Vec ti = 0.0;
Vec absz = 0.0;
foreach(l; 0 .. 10) {
foreach(k; 0 .. 5) {
zi = (zr + zr) * zi + ci;
zr = tr - ti + cr;
tr = zr * zr;
ti = zi * zi;
}
absz = tr + ti;
bool terminate = true;
foreach(i; 0 .. 8)
if (absz[i] <= 4.0) {
terminate = false;
break;
}
if (terminate)
return 0u;
}
ubyte accu;
foreach(i; 0 .. VLEN)
if (absz[i] <= 4.0) {
accu |= 0x80 >> i;
}
return accu;
}
}
else {
alias Vec = double[8];
alias Vec = double[8];

pragma(inline, true):
ubyte mbrot8(Vec cr, double civ) {
immutable Vec ci = civ;
Vec zr = 0.0;
Vec zi = 0.0;
Vec tr = 0.0;
Vec ti = 0.0;
Vec absz = 0.0;
foreach(l; 0 .. 10) {
foreach(k; 0 .. 5) {
zi[] = (zr[] + zr[]) * zi[] + ci[];
zr[] = tr[] - ti[] + cr[];
tr[] = zr[] * zr[];
ti[] = zi[] * zi[];
}
absz[] = tr[] + ti[];
bool terminate = true;
foreach(i; 0 .. 8)
if (absz[i] <= 4.0) {
terminate = false;
break;
}
if (terminate)
return 0u;
pragma(inline, true):
ubyte mbrot8(Vec cr, double civ) {
immutable Vec ci = civ;
Vec zr = 0.0;
Vec zi = 0.0;
Vec tr = 0.0;
Vec ti = 0.0;
Vec absz = 0.0;
foreach(l; 0 .. 10) {
foreach(k; 0 .. 5) {
zi[] = (zr[] + zr[]) * zi[] + ci[];
zr[] = tr[] - ti[] + cr[];
tr[] = zr[] * zr[];
ti[] = zi[] * zi[];
}
ubyte accu;
foreach(i; 0 .. VLEN)
absz[] = tr[] + ti[];
bool terminate = true;
foreach(i; 0 .. 8)
if (absz[i] <= 4.0) {
accu |= 0x80 >> i;
terminate = false;
break;
}
return accu;
if (terminate)
return 0u;
}
ubyte accu;
foreach(i; 0 .. VLEN)
if (absz[i] <= 4.0) {
accu |= 0x80 >> i;
}
return accu;
}

void main(string[] args) {
Expand Down
4 changes: 2 additions & 2 deletions bench/include/d/dub.json
Original file line number Diff line number Diff line change
Expand Up @@ -9,5 +9,5 @@
"name": "app",
"targetPath": "out",
"dflags-dmd": ["-mcpu=avx2"],
"dflags-ldc2": ["--march=broadwell"]
}
"dflags-ldc": ["-mattr=+avx2", "-mcpu=broadwell"]
}