skia2/resources/sksl/folding/IntFoldingES2.sksl
John Stiles 639e812d9f Remove usage of sqrt() as an optimization barrier in tests.
In the majority of cases, a uniform is an equally good substitute, and
replacing `sqrt(N)` with `unknownInput` actually makes the test clearer.

Change-Id: I7bcb477571972d7aa2ce8c49b3674471f7310748
Bug: skia:12034
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/411306
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2021-05-24 17:18:54 +00:00

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uniform half4 colorRed, colorGreen;
uniform half unknownInput;
bool test() {
int unknown = int(unknownInput);
bool ok = true;
int x = 32 + 2;
ok = ok && (x == 34);
x = 32 - 2;
ok = ok && (x == 30);
x = 32 * 2;
ok = ok && (x == 64);
x = 32 / 2;
ok = ok && (x == 16);
x = -1 == -1 ? 1 : -1;
ok = ok && (x == 1);
x = -1 == -2 ? 2 : -2;
ok = ok && (x == -2);
x = 0 != 1 ? 3 : -3;
ok = ok && (x == 3);
x = 0 != 0 ? 4 : -4;
ok = ok && (x == -4);
x = 6 > 5 ? 5 : -5;
ok = ok && (x == 5);
x = 6 > 6 ? 6 : -6;
ok = ok && (x == -6);
x = -1 < 0 ? 7 : -7;
ok = ok && (x == 7);
x = 1 < 0 ? 8 : -8;
ok = ok && (x == -8);
x = 6 >= 6 ? 9 : -9;
ok = ok && (x == 9);
x = 6 >= 7 ? 10 : -10;
ok = ok && (x == -10);
x = 6 <= 6 ? 11 : -11;
ok = ok && (x == 11);
x = 6 <= 5 ? 12 : -12;
ok = ok && (x == -12);
x = unknown + 0;
ok = ok && (x == unknown);
x = 0 + unknown;
ok = ok && (x == unknown);
x = unknown - 0;
ok = ok && (x == unknown);
x = unknown * 0;
ok = ok && (x == 0);
x = unknown * 1;
ok = ok && (x == unknown);
x = 1 * unknown;
ok = ok && (x == unknown);
x = 0 * unknown;
ok = ok && (x == 0);
x = unknown / 1;
ok = ok && (x == unknown);
x = 0 / unknown;
ok = ok && (x == 0);
x += 1;
ok = ok && (x == 1);
x += 0;
ok = ok && (x == 1);
x -= 2;
ok = ok && (x == -1);
x -= 0;
ok = ok && (x == -1);
x *= 1;
ok = ok && (x == -1);
x *= 2;
ok = ok && (x == -2);
x /= 1;
ok = ok && (x == -2);
x /= 2;
ok = ok && (x == -1);
return ok;
}
half4 main(float2 coords) {
return test() ? colorGreen : colorRed;
}