freedreno/ir3: fix sin/cos

We seem to need range reduction to get sane results.  Fixes glmark2
jellyfish bench, and a whole bunch of
dEQP-GLES3.functional.shaders.builtin_functions.precision.{sin,cos,tan}.*

v2: squashed in android build fixes from Rob Herring

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/gallium/drivers/freedreno/ir3/ir3_nir.c b/src/gallium/drivers/freedreno/ir3/ir3_nir.c
index 897b3b963be..d3ee2a7f74b 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_nir.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_nir.c
@@ -120,6 +120,11 @@ ir3_optimize_nir(struct ir3_shader *shader, nir_shader *s,
 		if (key->color_two_side) {
 			OPT_V(s, nir_lower_two_sided_color);
 		}
+	} else {
+		/* only want to do this the first time (when key is null)
+		 * and not again on any potential 2nd variant lowering pass:
+		 */
+		OPT_V(s, ir3_nir_apply_trig_workarounds);
 	}
 
 	OPT_V(s, nir_lower_tex, &tex_options);