dawn-cmake/test/tint/builtins/gen/countTrailingZeros/42fed6.wgsl.expected.glsl
Ben Clayton f8672d8c35 builtins: Add countTrailingZeros
Requires polyfilling for all but the MSL backend.

CTS tests: https://github.com/gpuweb/cts/pull/1002

Bug: tint:1367
Change-Id: I0cf56b74c01f30436f9ad00595a554a4042587e4
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/81501
Reviewed-by: David Neto <dneto@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Ben Clayton <bclayton@google.com>
2022-02-22 23:16:39 +00:00

94 lines
2.1 KiB
GLSL

#version 310 es
int tint_count_trailing_zeros(int v) {
uint x = uint(v);
uint b16 = (bool((x & 65535u)) ? 0u : 16u);
x = (x >> b16);
uint b8 = (bool((x & 255u)) ? 0u : 8u);
x = (x >> b8);
uint b4 = (bool((x & 15u)) ? 0u : 4u);
x = (x >> b4);
uint b2 = (bool((x & 3u)) ? 0u : 2u);
x = (x >> b2);
uint b1 = (bool((x & 1u)) ? 0u : 1u);
uint is_zero = ((x == 0u) ? 1u : 0u);
return int((((((b16 | b8) | b4) | b2) | b1) + is_zero));
}
void countTrailingZeros_42fed6() {
int res = tint_count_trailing_zeros(1);
}
vec4 vertex_main() {
countTrailingZeros_42fed6();
return vec4(0.0f, 0.0f, 0.0f, 0.0f);
}
void main() {
vec4 inner_result = vertex_main();
gl_Position = inner_result;
gl_Position.y = -(gl_Position.y);
gl_Position.z = ((2.0f * gl_Position.z) - gl_Position.w);
return;
}
#version 310 es
precision mediump float;
int tint_count_trailing_zeros(int v) {
uint x = uint(v);
uint b16 = (bool((x & 65535u)) ? 0u : 16u);
x = (x >> b16);
uint b8 = (bool((x & 255u)) ? 0u : 8u);
x = (x >> b8);
uint b4 = (bool((x & 15u)) ? 0u : 4u);
x = (x >> b4);
uint b2 = (bool((x & 3u)) ? 0u : 2u);
x = (x >> b2);
uint b1 = (bool((x & 1u)) ? 0u : 1u);
uint is_zero = ((x == 0u) ? 1u : 0u);
return int((((((b16 | b8) | b4) | b2) | b1) + is_zero));
}
void countTrailingZeros_42fed6() {
int res = tint_count_trailing_zeros(1);
}
void fragment_main() {
countTrailingZeros_42fed6();
}
void main() {
fragment_main();
return;
}
#version 310 es
int tint_count_trailing_zeros(int v) {
uint x = uint(v);
uint b16 = (bool((x & 65535u)) ? 0u : 16u);
x = (x >> b16);
uint b8 = (bool((x & 255u)) ? 0u : 8u);
x = (x >> b8);
uint b4 = (bool((x & 15u)) ? 0u : 4u);
x = (x >> b4);
uint b2 = (bool((x & 3u)) ? 0u : 2u);
x = (x >> b2);
uint b1 = (bool((x & 1u)) ? 0u : 1u);
uint is_zero = ((x == 0u) ? 1u : 0u);
return int((((((b16 | b8) | b4) | b2) | b1) + is_zero));
}
void countTrailingZeros_42fed6() {
int res = tint_count_trailing_zeros(1);
}
void compute_main() {
countTrailingZeros_42fed6();
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void main() {
compute_main();
return;
}