xref: /aosp_15_r20/external/skia/tests/sksl/intrinsics/FindMSB.metal (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1#include <metal_stdlib>
2#include <simd/simd.h>
3#ifdef __clang__
4#pragma clang diagnostic ignored "-Wall"
5#endif
6using namespace metal;
7struct Uniforms {
8    int a;
9    uint b;
10};
11struct Inputs {
12};
13struct Outputs {
14    half4 sk_FragColor [[color(0)]];
15};
16fragment Outputs fragmentMain(Inputs _in [[stage_in]], constant Uniforms& _uniforms [[buffer(0)]], bool _frontFacing [[front_facing]], float4 _fragCoord [[position]]) {
17    Outputs _out;
18    (void)_out;
19    int _skTemp0;
20    int _skTemp1;
21    uint _skTemp2;
22    _out.sk_FragColor.x = half((_skTemp0 = (_uniforms.a), _skTemp1 = (select(_skTemp0, ~_skTemp0, _skTemp0 < 0)), select(int(clz(_skTemp1)), int(-1), _skTemp1 == int(0))));
23    _out.sk_FragColor.y = half((_skTemp2 = (_uniforms.b), select(int(clz(_skTemp2)), int(-1), _skTemp2 == uint(0))));
24    return _out;
25}
26