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

2012-01-29 15:41:52 +01:00 · 2012-01-29 15:41:52 +01:00 · bb9c15bac4
parent 4ece0dbd2f
commit bb9c15bac4
1 changed files with 2 additions and 0 deletions
--- 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;