glsl/types: add new subroutine type (v3.2)

This type will be used to store the name of subroutine types

as in subroutine void myfunc(void);
will store myfunc into a subroutine type.

This is required to the parser can identify a subroutine
type in a uniform decleration as a valid type, and also for
looking up the type later.

Also add contains_subroutine method.

v2: handle subroutine to int comparisons, needed
for lowering pass.
v3: do subroutine to int with it's own IR
operation to avoid hacking on asserts (Kayden)
v3.1: fix warnings in this patch, fix nir,
fix tgsi
v3.2: fixup tests

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
Signed-off-by: Dave Airlie <airlied@redhat.com>

tests: fix warnings

1 files changed, 4 insertions, 0 deletions

diff --git a/src/glsl/ir_validate.cpp b/src/glsl/ir_validate.cpp
index 684bef2..3f0dea7 100644
--- a/src/glsl/ir_validate.cpp
+++ b/src/glsl/ir_validate.cpp
@@ -448,6 +448,10 @@ ir_validate::visit_leave(ir_expression *ir)
              ir->operands[0]->type->base_type == GLSL_TYPE_DOUBLE);
       assert(ir->type->base_type == GLSL_TYPE_INT);
       break;
+   case ir_unop_subroutine_to_int:
+      assert(ir->operands[0]->type->base_type == GLSL_TYPE_SUBROUTINE);
+      assert(ir->type->base_type == GLSL_TYPE_INT);
+      break;
    case ir_binop_add:
    case ir_binop_sub:
    case ir_binop_mul: