From: Rob Clark <robdclark@gmail.com>
Date: Mon, 29 Jan 2018 20:58:49 +0000 (-0500)
Subject: freedreno/ir3: keep array stores
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8ea1ef41911490c696a7e230511c99f0c9fac060;p=mesa.git

freedreno/ir3: keep array stores

Since these are not in SSA form, add to block's keeps so it doesn't
appear unused.

Signed-off-by: Rob Clark <robdclark@gmail.com>
---

diff --git a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
index 23888770fbe..c043214fca5 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_compiler_nir.c
@@ -374,6 +374,12 @@ create_array_store(struct ir3_context *ctx, struct ir3_array *arr, int n,
 
 	arr->last_write = mov;
 
+	/* the array store may only matter to something in an earlier
+	 * block (ie. loops), but since arrays are not in SSA, depth
+	 * pass won't know this.. so keep all array stores:
+	 */
+	array_insert(block, block->keeps, mov);
+
 	return mov;
 }