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vkd3d-shader/ir: Dump the control flow graph in the GraphViz format.

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Giovanni Mascellani 2024-01-30 14:59:52 +01:00 committed by Alexandre Julliard
parent da037b61ba
commit 2573d86ccf
Notes: Alexandre Julliard 2024-02-22 23:03:31 +01:00 
Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Conor McCarthy (@cmccarthy)
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/656
1 changed files with 40 additions and 0 deletions
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40
libs/vkd3d-shader/ir.c
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@ -3106,6 +3106,43 @@ static enum vkd3d_result vsir_cfg_add_edge(struct vsir_cfg *cfg, struct vsir_blo
return VKD3D_OK; return VKD3D_OK;
} }
static void vsir_cfg_dump_dot(struct vsir_cfg *cfg)
{
size_t i, j;
TRACE("digraph cfg {\n");
for (i = 0; i < cfg->block_count; ++i)
{
struct vsir_block *block = &cfg->blocks[i];
const char *shape;
if (block->label == 0)
continue;
switch (block->end->handler_idx)
{
case VKD3DSIH_RET:
shape = "trapezium";
break;
case VKD3DSIH_BRANCH:
shape = vsir_register_is_label(&block->end->src[0].reg) ? "ellipse" : "box";
break;
default:
vkd3d_unreachable();
}
TRACE(" n%u [label=\"%u\", shape=\"%s\"];\n", block->label, block->label, shape);
for (j = 0; j < block->successors.count; ++j)
TRACE(" n%u -> n%u;\n", block->label, block->successors.blocks[j]->label);
}
TRACE("}\n");
}
static enum vkd3d_result vsir_cfg_init(struct vsir_cfg *cfg, struct vsir_program *program) static enum vkd3d_result vsir_cfg_init(struct vsir_cfg *cfg, struct vsir_program *program)
{ {
struct vsir_block *current_block = NULL; struct vsir_block *current_block = NULL;
@ -3189,6 +3226,9 @@ static enum vkd3d_result vsir_cfg_init(struct vsir_cfg *cfg, struct vsir_program
} }
} }
if (TRACE_ON())
vsir_cfg_dump_dot(cfg);
return VKD3D_OK; return VKD3D_OK;
fail: fail: