+
+ qir_SF(c, c->execute);
+ qir_MOV_cond(c, QPU_COND_ZS, c->execute,
+ qir_uniform_ui(c, jump_block->index));
+
+ /* Jump to the destination block if everyone has taken the jump. */
+ qir_SF(c, qir_SUB(c, c->execute, qir_uniform_ui(c, jump_block->index)));
+ qir_BRANCH(c, QPU_COND_BRANCH_ALL_ZS);
+ struct qblock *new_block = qir_new_block(c);
+ qir_link_blocks(c->cur_block, jump_block);
+ qir_link_blocks(c->cur_block, new_block);
+ qir_set_emit_block(c, new_block);