From: Rob Clark <robdclark@chromium.org>
Date: Sat, 21 Mar 2020 20:13:34 +0000 (-0700)
Subject: freedreno/ir3: fix bogus register footprint with tess/gs
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=afdb8e390787b8199a554a0fe688cc1150e4c58f;p=mesa.git

freedreno/ir3: fix bogus register footprint with tess/gs

When we have a tess or gs stage, VS outputs aren't normal varyings, so
regid is r63.x.. we shouldn't extend our registerfootprint to 64!

Signed-off-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4272>
---

diff --git a/src/freedreno/ir3/ir3_shader.c b/src/freedreno/ir3/ir3_shader.c
index c66330147e0..5ea6ba93902 100644
--- a/src/freedreno/ir3/ir3_shader.c
+++ b/src/freedreno/ir3/ir3_shader.c
@@ -96,6 +96,9 @@ fixup_regfootprint(struct ir3_shader_variant *v, uint32_t gpu_id)
 	}
 
 	for (i = 0; i < v->outputs_count; i++) {
+		/* for ex, VS shaders with tess don't have normal varying outs: */
+		if (!VALIDREG(v->outputs[i].regid))
+			continue;
 		int32_t regid = v->outputs[i].regid + 3;
 		if (v->outputs[i].half) {
 			if (gpu_id < 500) {