dawn-cmake/test/tint/builtins/gen/var/extractBits/a99a8d.wgsl.expected.fxc.hlsl
Zhaoming Jiang a54df5eca5 Tint: Fix extractBits polyfill
This CL fix the extractBits polyfill, used for D3D12 backend on windows.
With this patch the related CTS would get pass.

Fixed: tint:1775
Change-Id: I15636bb55af502fff773c19f03b4c3c9e99b63fd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/112207
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2022-11-30 23:55:28 +00:00

43 lines
980 B
HLSL

int2 tint_extract_bits(int2 v, uint offset, uint count) {
const uint s = min(offset, 32u);
const uint e = min(32u, (s + count));
const uint shl = (32u - e);
const uint shr = (shl + s);
const int2 shl_result = ((shl < 32u) ? (v << uint2((shl).xx)) : (0).xx);
return ((shr < 32u) ? (shl_result >> uint2((shr).xx)) : ((shl_result >> (31u).xx) >> (1u).xx));
}
void extractBits_a99a8d() {
int2 arg_0 = (1).xx;
uint arg_1 = 1u;
uint arg_2 = 1u;
int2 res = tint_extract_bits(arg_0, arg_1, arg_2);
}
struct tint_symbol {
float4 value : SV_Position;
};
float4 vertex_main_inner() {
extractBits_a99a8d();
return (0.0f).xxxx;
}
tint_symbol vertex_main() {
const float4 inner_result = vertex_main_inner();
tint_symbol wrapper_result = (tint_symbol)0;
wrapper_result.value = inner_result;
return wrapper_result;
}
void fragment_main() {
extractBits_a99a8d();
return;
}
[numthreads(1, 1, 1)]
void compute_main() {
extractBits_a99a8d();
return;
}