diff options
| -rw-r--r-- | src/glsl/lower_subroutine.cpp | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/src/glsl/lower_subroutine.cpp b/src/glsl/lower_subroutine.cpp index a0df5e1df81..ac8ade13d99 100644 --- a/src/glsl/lower_subroutine.cpp +++ b/src/glsl/lower_subroutine.cpp @@ -44,6 +44,7 @@ public: } ir_visitor_status visit_leave(ir_call *); + ir_call *call_clone(ir_call *call, ir_function_signature *callee); bool progress; struct _mesa_glsl_parse_state *state; }; @@ -58,6 +59,23 @@ lower_subroutine(exec_list *instructions, struct _mesa_glsl_parse_state *state) return v.progress; } +ir_call * +lower_subroutine_visitor::call_clone(ir_call *call, ir_function_signature *callee) +{ + void *mem_ctx = ralloc_parent(call); + ir_dereference_variable *new_return_ref = NULL; + if (call->return_deref != NULL) + new_return_ref = call->return_deref->clone(mem_ctx, NULL); + + exec_list new_parameters; + + foreach_in_list(ir_instruction, ir, &call->actual_parameters) { + new_parameters.push_tail(ir->clone(mem_ctx, NULL)); + } + + return new(mem_ctx) ir_call(callee, new_return_ref, &new_parameters); +} + ir_visitor_status lower_subroutine_visitor::visit_leave(ir_call *ir) { @@ -66,7 +84,6 @@ lower_subroutine_visitor::visit_leave(ir_call *ir) void *mem_ctx = ralloc_parent(ir); ir_if *last_branch = NULL; - ir_dereference_variable *return_deref = ir->return_deref; for (int s = this->state->num_subroutines - 1; s >= 0; s--) { ir_rvalue *var; @@ -92,14 +109,11 @@ lower_subroutine_visitor::visit_leave(ir_call *ir) fn->exact_matching_signature(this->state, &ir->actual_parameters); - ir_call *new_call = new(mem_ctx) ir_call(sub_sig, return_deref, &ir->actual_parameters); + ir_call *new_call = call_clone(ir, sub_sig); if (!last_branch) last_branch = if_tree(equal(subr_to_int(var), lc), new_call); else last_branch = if_tree(equal(subr_to_int(var), lc), new_call, last_branch); - - if (return_deref && s > 0) - return_deref = return_deref->clone(mem_ctx, NULL); } if (last_branch) ir->insert_before(last_branch); |