From 79ad8c93541d64a23c55af4040072d2c6b7b4e65 Mon Sep 17 00:00:00 2001
From: Elizabeth Figura <zfigura@codeweavers.com>
Date: Sun, 8 Dec 2024 19:53:11 -0600
Subject: [PATCH] vkd3d-shader/hlsl: Handle error instructions in
 hlsl_new_swizzle().

We already check for error instructions when parsing swizzles, but if allocation
fails at codegen time we would like to avoid asserting when subsequently
constructing a swizzle.
---
 libs/vkd3d-shader/hlsl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libs/vkd3d-shader/hlsl.c b/libs/vkd3d-shader/hlsl.c
index 36e0a20c..4f794926 100644
--- a/libs/vkd3d-shader/hlsl.c
+++ b/libs/vkd3d-shader/hlsl.c
@@ -1865,6 +1865,9 @@ struct hlsl_ir_node *hlsl_new_swizzle(struct hlsl_ctx *ctx, uint32_t s, unsigned
     struct hlsl_ir_swizzle *swizzle;
     struct hlsl_type *type;
 
+    if (val->data_type->class == HLSL_CLASS_ERROR)
+        return val;
+
     VKD3D_ASSERT(val->data_type->class <= HLSL_CLASS_VECTOR);
 
     if (!(swizzle = hlsl_alloc(ctx, sizeof(*swizzle))))