glsl: Allow dot() on scalars, and throw out dotlike().

In all uses of dotlike() we're writing generic code that operates on 1-4
component vectors. That our IR requires ir_binop_dot expressions'
operands to be 2+ component vectors is an implementation detail that's
not important when implementing built-in functions with dot(), which is
defined for scalar floats in GLSL.

Reviewed-by: Eric Anholt <eric@anholt.net>

1 files changed, 1 insertions, 6 deletions

diff --git a/src/glsl/ir_builder.cpp b/src/glsl/ir_builder.cpp
index 7f41ed69ef..f4a1c6efa0 100644
--- a/src/glsl/ir_builder.cpp
+++ b/src/glsl/ir_builder.cpp
@@ -251,13 +251,8 @@ ir_expression *round_even(operand a)
    return expr(ir_unop_round_even, a);
 }
 
-ir_expression *dot(operand a, operand b)
-{
-   return expr(ir_binop_dot, a, b);
-}
-
 /* dot for vectors, mul for scalars */
-ir_expression *dotlike(operand a, operand b)
+ir_expression *dot(operand a, operand b)
 {
    assert(a.val->type == b.val->type);