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ed86bf99b0
Performs basic peephole optimizations on the AST. Use in transform::Hlsl. Required to have the DecomposeStorageAccess transform operate correctly with the output of InlinePointerLets transform, specifically when declaring `let` pointer expressions to storage buffers. Fixed: tint:221 Fixed: tint:492 Fixed: tint:829 Change-Id: I536390921a6492378104e9c3c100d9e761294a27 Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/51921 Commit-Queue: Ben Clayton <bclayton@chromium.org> Reviewed-by: David Neto <dneto@google.com>
26 lines
512 B
WebGPU Shading Language
26 lines
512 B
WebGPU Shading Language
type Arr = array<u32, 50>;
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[[block]]
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struct Buf{
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count : u32;
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data : Arr;
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};
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[[group(0), binding (0)]] var<storage> b : [[access(read)]] Buf;
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[[stage(compute)]]
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fn main() {
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var i : u32 = 0u;
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loop {
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if (i >= b.count) { break; }
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let p : ptr<storage, u32> = &b.data[i];
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if ((i % 2u) == 0u) { continue; }
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*p = 0u; // Set odd elements of the array to 0
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continuing {
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*p = *p * 2u; // Double the value in the array entry
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i = i + 1u;
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}
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}
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return;
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}
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