diff --git a/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c b/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
index 7007d20d221..47bcec42751 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_cmdline.c
@@ -241,6 +241,7 @@ int main(int argc, char **argv)
 		tgsi_dump(toks, 0);
 
 	nir_shader *nir = ir3_tgsi_to_nir(toks);
+	s.from_tgsi = true;
 	s.compiler = ir3_compiler_create(NULL, gpu_id);
 	s.nir = ir3_optimize_nir(&s, nir, NULL);
 
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
index a81aee38f36..33b2b7ba7bf 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
@@ -2488,8 +2488,8 @@ ir3_compile_shader_nir(struct ir3_compiler *compiler,
 		/* preserve hack for depth output.. tgsi writes depth to .z,
 		 * but what we give the hw is the scalar register:
 		 */
-		if ((so->type == SHADER_FRAGMENT) &&
-			(so->outputs[i].slot == FRAG_RESULT_DEPTH))
+		if (so->shader->from_tgsi && (so->type == SHADER_FRAGMENT) &&
+				(so->outputs[i].slot == FRAG_RESULT_DEPTH))
 			so->outputs[i].regid += 2;
 	}
 
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_shader.c b/src/gallium/drivers/freedreno/ir3/ir3_shader.c
index cd596cf25a8..ee0018f5f4c 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_shader.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_shader.c
@@ -294,6 +294,7 @@ ir3_shader_create(struct ir3_compiler *compiler,
 			tgsi_dump(cso->tokens, 0);
 		}
 		nir = ir3_tgsi_to_nir(cso->tokens);
+		shader->from_tgsi = true;
 	}
 	/* do first pass optimization, ignoring the key: */
 	shader->nir = ir3_optimize_nir(shader, nir, NULL);
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_shader.h b/src/gallium/drivers/freedreno/ir3/ir3_shader.h
index 077ba5db379..c17a76be189 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_shader.h
+++ b/src/gallium/drivers/freedreno/ir3/ir3_shader.h
@@ -252,6 +252,9 @@ struct ir3_shader {
 	uint32_t id;
 	uint32_t variant_count;
 
+	/* so we know when we can disable TGSI related hacks: */
+	bool from_tgsi;
+
 	struct ir3_compiler *compiler;
 
 	nir_shader *nir;