Erik Faye-Lund <kusmab...@gmail.com> writes: > On Mon, Jan 20, 2014 at 8:18 AM, Eric Anholt <e...@anholt.net> wrote: >> --- >> src/glsl/opt_algebraic.cpp | 36 ++++++++++++++++++++++++++++++++++++ >> 1 file changed, 36 insertions(+) >> >> diff --git a/src/glsl/opt_algebraic.cpp b/src/glsl/opt_algebraic.cpp >> index 6b0d992..4aa49e5 100644 >> --- a/src/glsl/opt_algebraic.cpp >> +++ b/src/glsl/opt_algebraic.cpp >> @@ -252,6 +252,42 @@ ir_algebraic_visitor::handle_expression(ir_expression >> *ir) >> } >> break; >> >> + case ir_unop_exp: >> + if (op_expr[0] == NULL) >> + break; > > How can this happen?!
If the first operand itself isn't an expression (for example, it's a swizzle of something else).
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