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authorJordan Justen <jordan.l.justen@intel.com>2015-03-15 13:53:06 -0700
committerJordan Justen <jordan.l.justen@intel.com>2015-11-09 17:21:12 -0800
commit8b28b3553139c19efed6d54d0a21315867371864 (patch)
treec825b8c3e81f9f7d584d6f3a23fbf2c1b5c9ca8c
parenta4a46fe3fa566b2918f7323e7f0eede17f118f03 (diff)
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glsl: Parse shared keyword for compute shader variables
v2: * Move shared parsing under storage qualifiers (tarceri) * Fail to compile if shared is used in non-compute shader (tarceri) * Use separate shared_storage bit for shared variables (tarceri) Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Timothy Arceri <timothy.arceri@collabora.com>
-rw-r--r--src/glsl/ast.h1
-rw-r--r--src/glsl/ast_to_hir.cpp6
-rw-r--r--src/glsl/ast_type.cpp3
-rw-r--r--src/glsl/glsl_lexer.ll2
-rw-r--r--src/glsl/glsl_parser.yy6
5 files changed, 17 insertions, 1 deletions
diff --git a/src/glsl/ast.h b/src/glsl/ast.h
index e803e6d..1b75234 100644
--- a/src/glsl/ast.h
+++ b/src/glsl/ast.h
@@ -448,6 +448,7 @@ struct ast_type_qualifier {
unsigned patch:1;
unsigned uniform:1;
unsigned buffer:1;
+ unsigned shared_storage:1;
unsigned smooth:1;
unsigned flat:1;
unsigned noperspective:1;
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index 5a22820..a8eaecc 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -3089,6 +3089,12 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual,
"members");
}
+ if (qual->flags.q.shared_storage && state->stage != MESA_SHADER_COMPUTE) {
+ _mesa_glsl_error(loc, state,
+ "the shared storage qualifiers can only be used with "
+ "compute shaders");
+ }
+
if (qual->flags.q.row_major || qual->flags.q.column_major) {
validate_matrix_layout_for_type(state, loc, var->type, var);
}
diff --git a/src/glsl/ast_type.cpp b/src/glsl/ast_type.cpp
index 08a4504..79134c1 100644
--- a/src/glsl/ast_type.cpp
+++ b/src/glsl/ast_type.cpp
@@ -85,7 +85,8 @@ ast_type_qualifier::has_storage() const
|| this->flags.q.in
|| this->flags.q.out
|| this->flags.q.uniform
- || this->flags.q.buffer;
+ || this->flags.q.buffer
+ || this->flags.q.shared_storage;
}
bool
diff --git a/src/glsl/glsl_lexer.ll b/src/glsl/glsl_lexer.ll
index 2142817..e59f93e 100644
--- a/src/glsl/glsl_lexer.ll
+++ b/src/glsl/glsl_lexer.ll
@@ -414,6 +414,8 @@ writeonly KEYWORD_WITH_ALT(420, 300, 420, 310, yyextra->ARB_shader_image_lo
atomic_uint KEYWORD_WITH_ALT(420, 300, 420, 310, yyextra->ARB_shader_atomic_counters_enable, ATOMIC_UINT);
+shared KEYWORD_WITH_ALT(430, 310, 430, 310, yyextra->ARB_compute_shader_enable, SHARED);
+
struct return STRUCT;
void return VOID_TOK;
diff --git a/src/glsl/glsl_parser.yy b/src/glsl/glsl_parser.yy
index 4636435..4ac8e45 100644
--- a/src/glsl/glsl_parser.yy
+++ b/src/glsl/glsl_parser.yy
@@ -165,6 +165,7 @@ static bool match_layout_qualifier(const char *s1, const char *s2,
%token IMAGE1DSHADOW IMAGE2DSHADOW IMAGE1DARRAYSHADOW IMAGE2DARRAYSHADOW
%token COHERENT VOLATILE RESTRICT READONLY WRITEONLY
%token ATOMIC_UINT
+%token SHARED
%token STRUCT VOID_TOK WHILE
%token <identifier> IDENTIFIER TYPE_IDENTIFIER NEW_IDENTIFIER
%type <identifier> any_identifier
@@ -1929,6 +1930,11 @@ storage_qualifier:
memset(& $$, 0, sizeof($$));
$$.flags.q.buffer = 1;
}
+ | SHARED
+ {
+ memset(& $$, 0, sizeof($$));
+ $$.flags.q.shared_storage = 1;
+ }
;
memory_qualifier: