Instead of an int3.
Gather operations expect an offset with only two components.
Currently the following field (which is the gather channel) is
parsed as a third component, which leads to wrong and invalid
results.
This fixes a crash on a shader from WRC Generations.
The validator checks that on normalized vsir I/O destination write masks
are always a subset of the element's write mask.
This is currently not always happening for FOG and PSIZE outputs, because
d3dbc input might use the 0xf mask instead, despite these semantics being
scalar.
Note that this problem is hidden when using varying mapping, because in
that case the vsir_program_remap_output_signature() pass, specifically
the remove_unread_output_components() function, fixes the write mask.
This fixes the assertion error
"sm4_generate_vsir_instr_expr Failed assertion: dst_type->e.numeric.type == HLSL_TYPE_BOOL"
which occurs when compiling the following HLSL shader using the ps_4_0 target profile:
uniform float4 x;
uniform bool b;
float4 main() : SV_Target
{
if (!b)
clip(x.x);
else
clip(x.y);
return x;
}
With some (Windows 11) runtimes creating a shader cache session fails
when the requested size is too small. The test will have to be fixed for
that, but in the meantime let's at least ensure it doesn't crash.
