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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>
34 lines
578 B
Plaintext
34 lines
578 B
Plaintext
#include <metal_stdlib>
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using namespace metal;
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struct Buf {
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/* 0x0000 */ uint count;
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/* 0x0004 */ uint data[50];
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};
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kernel void tint_symbol(const device Buf& b [[buffer(0)]]) {
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uint i = 0u;
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{
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bool tint_msl_is_first_1 = true;
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device uint* const p;
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for(;;) {
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if (!tint_msl_is_first_1) {
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*(p) = (*(p) * 2u);
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i = (i + 1u);
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}
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tint_msl_is_first_1 = false;
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if ((i >= b.count)) {
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break;
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}
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p = &(b.data[i]);
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if (((i % 2u) == 0u)) {
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continue;
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}
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*(p) = 0u;
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}
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}
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return;
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}
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