From: Christoph Bumiller <e0425955@student.tuwien.ac.at>
Date: Sun, 29 Jan 2012 14:41:52 +0000 (+0100)
Subject: nv50/ir/opt: another insn NULL check in phi elimination
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=bb9c15bac42cf323ef267095b33031ffc1d4fba4;p=mesa.git

nv50/ir/opt: another insn NULL check in phi elimination
---

diff --git a/src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp b/src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp
index a45d336b435..3bdd5c8533c 100644
--- a/src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp
+++ b/src/gallium/drivers/nv50/codegen/nv50_ir_peephole.cpp
@@ -2020,6 +2020,8 @@ GlobalCSE::visit(BasicBlock *bb)
       if (phi->getSrc(0)->refCount() > 1)
          continue;
       ik = phi->getSrc(0)->getInsn();
+      if (!ik)
+         continue; // probably a function input
       for (s = 1; phi->srcExists(s); ++s) {
          if (phi->getSrc(s)->refCount() > 1)
             break;