diff --git a/src/gallium/drivers/freedreno/a3xx/fd3_program.c b/src/gallium/drivers/freedreno/a3xx/fd3_program.c
index a84351ae887..09cadf81cbf 100644
--- a/src/gallium/drivers/freedreno/a3xx/fd3_program.c
+++ b/src/gallium/drivers/freedreno/a3xx/fd3_program.c
@@ -300,6 +300,8 @@ find_output(const struct fd3_shader_variant *so, fd3_semantic semantic)
 		return find_output(so, fd3_semantic_name(TGSI_SEMANTIC_COLOR, idx));
 	}
 
+	assert(0);
+
 	return 0;
 }
 
diff --git a/src/gallium/drivers/freedreno/a3xx/ir3_ra.c b/src/gallium/drivers/freedreno/a3xx/ir3_ra.c
index 9d3a7783494..d926483a222 100644
--- a/src/gallium/drivers/freedreno/a3xx/ir3_ra.c
+++ b/src/gallium/drivers/freedreno/a3xx/ir3_ra.c
@@ -440,6 +440,9 @@ static void ra_assign_reg(struct ir3_visitor *v,
 
 	reg->flags &= ~IR3_REG_SSA;
 	reg->num = a->num & ~REG_HALF;
+
+	assert(reg->num >= 0);
+
 	if (a->num & REG_HALF) {
 		reg->flags |= IR3_REG_HALF;
 		/* if dst reg being assigned, patch up the instr: */