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-rw-r--r--src/compiler/glsl/opt_conditional_discard.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/compiler/glsl/opt_conditional_discard.cpp b/src/compiler/glsl/opt_conditional_discard.cpp
index 03665c37364..6d8a23460d9 100644
--- a/src/compiler/glsl/opt_conditional_discard.cpp
+++ b/src/compiler/glsl/opt_conditional_discard.cpp
@@ -72,7 +72,14 @@ opt_conditional_discard_visitor::visit_leave(ir_if *ir)
/* Move the condition and replace the ir_if with the ir_discard. */
ir_discard *discard = (ir_discard *) ir->then_instructions.get_head_raw();
- discard->condition = ir->condition;
+ if (!discard->condition)
+ discard->condition = ir->condition;
+ else {
+ void *ctx = ralloc_parent(ir);
+ discard->condition = new(ctx) ir_expression(ir_binop_logic_and,
+ ir->condition,
+ discard->condition);
+ }
ir->replace_with(discard);
progress = true;