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vkd3d-shader/ir: Expand index range write masks to cover all element masks.

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For example, this occurred in a shader:

reg_idx write_mask
   0      xyz
   1      xyzw
   2      xyzw
   3      xyz

The dcl_indexrange instruction covered only xyz, so once merged, searching for
xyzw failed.

It is impossible to declare an input array where elements have different
component counts, but the optimiser can create this case. One way for
this to occur is to dynamically index input values via a local array
containing copies of the input values. The optimiser converts this to
dynamically indexed inputs.
This commit is contained in:
Conor McCarthy
2024-01-04 16:05:15 +10:00
committed by Alexandre Julliard
parent 16962ac6f1
commit 418e8d8100
Notes: Alexandre Julliard 2024-01-17 22:43:37 +01:00 
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/537
2 changed files with 55 additions and 9 deletions
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7
libs/vkd3d-shader/tpf.c
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@@ -932,13 +932,6 @@ static void shader_sm4_read_dcl_index_range(struct vkd3d_shader_instruction *ins
register_count = index_range->register_count;
write_mask = index_range->dst.write_mask;
if (vsir_write_mask_component_count(write_mask) != 1)
{
WARN("Unhandled write mask %#x.\n", write_mask);
vkd3d_shader_parser_warning(&priv->p, VKD3D_SHADER_WARNING_TPF_UNHANDLED_INDEX_RANGE_MASK,
"Index range mask %#x is not scalar.", write_mask);
}
switch ((type = index_range->dst.reg.type))
{
case VKD3DSPR_INPUT: