glsl: Add single declaration variables to the symbol table too.

The lexer/parser use a symbol table to classify identifiers as
variables, functions, or structure types.

For some reason, we neglected to add variables in simple declarations
such as

    int x = 5;

but did add subsequent variables in multi-declarations:

    int x = 5, y = 6; // y gets added, but not x, for some reason

Fixes four dEQP-GLES2.functional.shaders.scoping.valid subcases:
- local_int_variable_hides_struct_type_vertex
- local_int_variable_hides_struct_type_fragment
- local_struct_variable_hides_struct_type_vertex
- local_struct_variable_hides_struct_type_fragment

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/src/compiler/glsl/glsl_parser.yy b/src/compiler/glsl/glsl_parser.yy
index 3c4f0c7..78a4e5d 100644
--- a/src/compiler/glsl/glsl_parser.yy
+++ b/src/compiler/glsl/glsl_parser.yy
@@ -1062,6 +1062,7 @@ single_declaration:
       $$ = new(ctx) ast_declarator_list($1);
       $$->set_location_range(@1, @2);
       $$->declarations.push_tail(&decl->link);
+      state->symbols->add_variable(new(state) ir_variable(NULL, $2, ir_var_auto));
    }
    | fully_specified_type any_identifier array_specifier
    {
@@ -1072,6 +1073,7 @@ single_declaration:
       $$ = new(ctx) ast_declarator_list($1);
       $$->set_location_range(@1, @3);
       $$->declarations.push_tail(&decl->link);
+      state->symbols->add_variable(new(state) ir_variable(NULL, $2, ir_var_auto));
    }
    | fully_specified_type any_identifier array_specifier '=' initializer
    {
@@ -1082,6 +1084,7 @@ single_declaration:
       $$ = new(ctx) ast_declarator_list($1);
       $$->set_location_range(@1, @3);
       $$->declarations.push_tail(&decl->link);
+      state->symbols->add_variable(new(state) ir_variable(NULL, $2, ir_var_auto));
    }
    | fully_specified_type any_identifier '=' initializer
    {
@@ -1092,6 +1095,7 @@ single_declaration:
       $$ = new(ctx) ast_declarator_list($1);
       $$->set_location_range(@1, @2);
       $$->declarations.push_tail(&decl->link);
+      state->symbols->add_variable(new(state) ir_variable(NULL, $2, ir_var_auto));
    }
    | INVARIANT variable_identifier
    {