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vkd3d-shader/hlsl: Also call dce before lowering deref paths.

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This commit is contained in:
Francisco Casas 2024-03-25 16:33:38 -03:00 committed by Alexandre Julliard
parent d1e16514d0
commit 4dedcc5885
Notes: Alexandre Julliard 2024-04-11 17:02:42 -05:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Zebediah Figura (@zfigura)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/739
1 changed files with 25 additions and 10 deletions
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35
libs/vkd3d-shader/hlsl_codegen.c
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@ -3834,6 +3834,22 @@ static void allocate_register_reservations(struct hlsl_ctx *ctx)
}
}
static void deref_mark_last_read(struct hlsl_deref *deref, unsigned int last_read)
{
unsigned int i;
if (hlsl_deref_is_lowered(deref))
{
if (deref->rel_offset.node)
deref->rel_offset.node->last_read = last_read;
}
else
{
for (i = 0; i < deref->path_len; ++i)
deref->path[i].node->last_read = last_read;
}
}
/* Compute the earliest and latest liveness for each variable. In the case that
* a variable is accessed inside of a loop, we promote its liveness to extend
* to at least the range of the entire loop. We also do this for nodes, so that
@ -3862,8 +3878,7 @@ static void compute_liveness_recurse(struct hlsl_block *block, unsigned int loop
if (!var->first_write)
var->first_write = loop_first ? min(instr->index, loop_first) : instr->index;
store->rhs.node->last_read = last_read;
if (store->lhs.rel_offset.node)
store->lhs.rel_offset.node->last_read = last_read;
deref_mark_last_read(&store->lhs, last_read);
break;
}
case HLSL_IR_EXPR:
@ -3890,8 +3905,7 @@ static void compute_liveness_recurse(struct hlsl_block *block, unsigned int loop
var = load->src.var;
var->last_read = max(var->last_read, last_read);
if (load->src.rel_offset.node)
load->src.rel_offset.node->last_read = last_read;
deref_mark_last_read(&load->src, last_read);
break;
}
case HLSL_IR_LOOP:
@ -3908,14 +3922,12 @@ static void compute_liveness_recurse(struct hlsl_block *block, unsigned int loop
var = load->resource.var;
var->last_read = max(var->last_read, last_read);
if (load->resource.rel_offset.node)
load->resource.rel_offset.node->last_read = last_read;
deref_mark_last_read(&load->resource, last_read);
if ((var = load->sampler.var))
{
var->last_read = max(var->last_read, last_read);
if (load->sampler.rel_offset.node)
load->sampler.rel_offset.node->last_read = last_read;
deref_mark_last_read(&load->sampler, last_read);
}
if (load->coords.node)
@ -3940,8 +3952,7 @@ static void compute_liveness_recurse(struct hlsl_block *block, unsigned int loop
var = store->resource.var;
var->last_read = max(var->last_read, last_read);
if (store->resource.rel_offset.node)
store->resource.rel_offset.node->last_read = last_read;
deref_mark_last_read(&store->resource, last_read);
store->coords.node->last_read = last_read;
store->value.node->last_read = last_read;
break;
@ -5450,6 +5461,10 @@ int hlsl_emit_bytecode(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry
lower_ir(ctx, validate_nonconstant_vector_store_derefs, body);
do
compute_liveness(ctx, entry_func);
while (hlsl_transform_ir(ctx, dce, body, NULL));
/* TODO: move forward, remove when no longer needed */
transform_derefs(ctx, replace_deref_path_with_offset, body);
while (hlsl_transform_ir(ctx, hlsl_fold_constant_exprs, body, NULL));