skia2/resources/sksl/runtime/ConstPreservation.rts
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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/*#pragma settings NoInline*/
// Ensure that 'const' is preserved on variable and function declarations in the .stage output
const half r = 0;
noinline half opt_barrier(const half x) {
return x;
}
half2 compute_ba(const half2 rg) {
return rg;
}
half4 main(float2 xy) {
const half g = r + 1;
return half4(opt_barrier(r), g, compute_ba(half2(r, opt_barrier(g))));
}