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vkd3d-shader/hlsl: Check for duplicate case statements.

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Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
This commit is contained in:
Nikolay Sivov 2023-10-11 13:55:32 +02:00 committed by Alexandre Julliard
parent ec8dfa467f
commit 9a6e4a0c58
Notes: Alexandre Julliard 2023-10-31 22:37:53 +01:00 
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/361
2 changed files with 35 additions and 0 deletions
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34
libs/vkd3d-shader/hlsl.y
View File

@ -4648,6 +4648,39 @@ static struct hlsl_scope *get_loop_scope(struct hlsl_scope *scope)
return scope->upper ? get_loop_scope(scope->upper) : NULL;
}
static void check_duplicated_switch_cases(struct hlsl_ctx *ctx, const struct hlsl_ir_switch_case *check, struct list *cases)
{
struct hlsl_ir_switch_case *c;
bool found_duplicate = false;
LIST_FOR_EACH_ENTRY(c, cases, struct hlsl_ir_switch_case, entry)
{
if (check->is_default)
{
if ((found_duplicate = c->is_default))
{
hlsl_error(ctx, &check->loc, VKD3D_SHADER_ERROR_HLSL_DUPLICATE_SWITCH_CASE,
"Found multiple 'default' statements.");
hlsl_note(ctx, &c->loc, VKD3D_SHADER_LOG_ERROR, "The 'default' statement was previously found here.");
}
}
else
{
if (c->is_default) continue;
if ((found_duplicate = (c->value == check->value)))
{
hlsl_error(ctx, &check->loc, VKD3D_SHADER_ERROR_HLSL_DUPLICATE_SWITCH_CASE,
"Found duplicate 'case' statement.");
hlsl_note(ctx, &c->loc, VKD3D_SHADER_LOG_ERROR, "The same 'case %d' statement was previously found here.",
c->value);
}
}
if (found_duplicate)
break;
}
}
}
%locations
@ -6447,6 +6480,7 @@ switch_cases:
| switch_cases switch_case
{
$$ = $1;
check_duplicated_switch_cases(ctx, $2, $$);
list_add_tail($$, &$2->entry);
}

1
libs/vkd3d-shader/vkd3d_shader_private.h
View File

@ -142,6 +142,7 @@ enum vkd3d_shader_error
VKD3D_SHADER_ERROR_HLSL_RECURSIVE_CALL = 5025,
VKD3D_SHADER_ERROR_HLSL_INCONSISTENT_SAMPLER = 5026,
VKD3D_SHADER_ERROR_HLSL_NON_FINITE_RESULT = 5027,
VKD3D_SHADER_ERROR_HLSL_DUPLICATE_SWITCH_CASE = 5028,
VKD3D_SHADER_WARNING_HLSL_IMPLICIT_TRUNCATION = 5300,
VKD3D_SHADER_WARNING_HLSL_DIVISION_BY_ZERO = 5301,