51 lines
1.3 KiB
Plaintext
51 lines
1.3 KiB
Plaintext
#include <metal_stdlib>
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using namespace metal;
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int tint_first_trailing_bit(int v) {
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uint x = uint(v);
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uint const b16 = select(16u, 0u, bool((x & 65535u)));
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x = (x >> b16);
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uint const b8 = select(8u, 0u, bool((x & 255u)));
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x = (x >> b8);
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uint const b4 = select(4u, 0u, bool((x & 15u)));
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x = (x >> b4);
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uint const b2 = select(2u, 0u, bool((x & 3u)));
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x = (x >> b2);
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uint const b1 = select(1u, 0u, bool((x & 1u)));
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uint const is_zero = select(0u, 4294967295u, (x == 0u));
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return int((((((b16 | b8) | b4) | b2) | b1) | is_zero));
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}
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void firstTrailingBit_3a2acc(device int* const tint_symbol_1) {
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int arg_0 = 1;
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int res = tint_first_trailing_bit(arg_0);
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*(tint_symbol_1) = res;
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}
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struct tint_symbol {
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float4 value [[position]];
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};
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float4 vertex_main_inner(device int* const tint_symbol_2) {
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firstTrailingBit_3a2acc(tint_symbol_2);
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return float4(0.0f);
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}
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vertex tint_symbol vertex_main(device int* tint_symbol_3 [[buffer(0)]]) {
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float4 const inner_result = vertex_main_inner(tint_symbol_3);
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tint_symbol wrapper_result = {};
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wrapper_result.value = inner_result;
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return wrapper_result;
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}
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fragment void fragment_main(device int* tint_symbol_4 [[buffer(0)]]) {
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firstTrailingBit_3a2acc(tint_symbol_4);
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return;
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}
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kernel void compute_main(device int* tint_symbol_5 [[buffer(0)]]) {
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firstTrailingBit_3a2acc(tint_symbol_5);
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return;
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}
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