diff options
| -rw-r--r-- | src/glsl/lower_discard_flow.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/glsl/lower_discard_flow.cpp b/src/glsl/lower_discard_flow.cpp index 1bc56d79e98..ee45bf22155 100644 --- a/src/glsl/lower_discard_flow.cpp +++ b/src/glsl/lower_discard_flow.cpp @@ -90,7 +90,14 @@ ir_visitor_status lower_discard_flow_visitor::visit_enter(ir_discard *ir) { ir_dereference *lhs = new(mem_ctx) ir_dereference_variable(discarded); - ir_rvalue *rhs = new(mem_ctx) ir_constant(true); + ir_rvalue *rhs; + if (ir->condition) { + /* discarded <- condition, use (var_ref discarded) as the condition */ + rhs = ir->condition; + ir->condition = new(mem_ctx) ir_dereference_variable(discarded); + } else { + rhs = new(mem_ctx) ir_constant(true); + } ir_assignment *assign = new(mem_ctx) ir_assignment(lhs, rhs); ir->insert_before(assign); |