From: Karol Herbst <kherbst@redhat.com>
Date: Sat, 2 Nov 2019 23:57:28 +0000 (+0100)
Subject: nv50/ir: fix crash in isUniform for undefined values
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=538d2c33b86dd9e66a6e900ac8e1cda10a5bfc4d;p=mesa.git

nv50/ir: fix crash in isUniform for undefined values

Signed-off-by: Karol Herbst <kherbst@redhat.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
---

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir.cpp
index a181a13a3b1..ae07d967221 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir.cpp
@@ -274,6 +274,8 @@ LValue::isUniform() const
    if (defs.size() > 1)
       return false;
    Instruction *insn = getInsn();
+   if (!insn)
+      return false;
    // let's not try too hard here for now ...
    return !insn->srcExists(1) && insn->getSrc(0)->isUniform();
 }