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Remove warnings, improve benchmark quality, complicate benchmark results:

Browse Source 
- data on heap instead of stack
 - more closely match operations of actual SkMatrix::setConcat()
 - avoid random perturbations, do_always;
   use perf annotate to verify that assembly isn't getting optimized away



git-svn-id: http://skia.googlecode.com/svn/trunk@1500 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
tomhudson@google.com 2011-06-03 20:32:58 +00:00
parent 76d613980d
commit a20416b010
1 changed files with 30 additions and 24 deletions
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54
bench/MatrixBench.cpp
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@ -96,22 +96,24 @@ protected:
*result = a * b + c * d;
}
virtual void performTest() {
float a[9];
float b[9];
float r[9];
a[0] = rnd.nextS();
a[3] = rnd.nextS();
const float* a = mya;
const float* b = myb;
float* r = myr;
muladdmul(a[0], b[0], a[1], b[3], &r[0]);
muladdmul(a[0], b[1], a[1], b[4], &r[1]);
muladdmul(a[0], b[2], a[1], b[5], &r[2]);
r[2] += a[2];
muladdmul(a[3], b[0], a[4], b[3], &r[3]);
muladdmul(a[3], b[1], a[4], b[4], &r[4]);
muladdmul(a[3], b[2], a[4], b[5], &r[5]);
always_do(r[0] + r[1] + r[2] + r[3] + r[4] + r[5] +
r[6] + r[7] + r[8] > 0.0f);
r[5] += a[5];
r[6] = r[7] = 0.0f;
r[8] = 1.0f;
}
private:
SkRandom rnd;
float mya [9];
float myb [9];
float myr [9];
typedef MatrixBench INHERITED;
};
@ -133,22 +135,24 @@ protected:
*result = SkDoubleToFloat((double)a * b + (double)c * d);
}
virtual void performTest() {
float a[9];
float b[9];
float r[9];
a[0] = rnd.nextS();
a[3] = rnd.nextS();
const float* a = mya;
const float* b = myb;
float* r = myr;
muladdmul(a[0], b[0], a[1], b[3], &r[0]);
muladdmul(a[0], b[1], a[1], b[4], &r[1]);
muladdmul(a[0], b[2], a[1], b[5], &r[2]);
r[2] += a[2];
muladdmul(a[3], b[0], a[4], b[3], &r[3]);
muladdmul(a[3], b[1], a[4], b[4], &r[4]);
muladdmul(a[3], b[2], a[4], b[5], &r[5]);
always_do(r[0] + r[1] + r[2] + r[3] + r[4] + r[5] +
r[6] + r[7] + r[8] > 0.0f);
r[5] += a[5];
r[6] = r[7] = 0.0f;
r[8] = 1.0f;
}
private:
SkRandom rnd;
float mya [9];
float myb [9];
float myr [9];
typedef MatrixBench INHERITED;
};
@ -165,22 +169,24 @@ protected:
*result = a * b + c * d;
}
virtual void performTest() {
double a[9];
double b[9];
double r[9];
a[0] = rnd.nextS();
a[3] = rnd.nextS();
const double* a = mya;
const double* b = myb;
double* r = myr;
muladdmul(a[0], b[0], a[1], b[3], &r[0]);
muladdmul(a[0], b[1], a[1], b[4], &r[1]);
muladdmul(a[0], b[2], a[1], b[5], &r[2]);
r[2] += a[2];
muladdmul(a[3], b[0], a[4], b[3], &r[3]);
muladdmul(a[3], b[1], a[4], b[4], &r[4]);
muladdmul(a[3], b[2], a[4], b[5], &r[5]);
always_do(r[0] + r[1] + r[2] + r[3] + r[4] + r[5] +
r[6] + r[7] + r[8] > 0.0f);
r[5] += a[5];
r[6] = r[7] = 0.0;
r[8] = 1.0;
}
private:
SkRandom rnd;
double mya [9];
double myb [9];
double myr [9];
typedef MatrixBench INHERITED;
};