glsl: Fix copy'n'wasted ir_noop_swizzle conditions.

It considered .xyyy a noop for vec4 instead of .xyzw, and similar for vec3.

diff --git a/src/glsl/ir_noop_swizzle.cpp b/src/glsl/ir_noop_swizzle.cpp
index b78c87b47f3bfd0bd81259867abaa8fd2423b528..0403dfa4e9368da29cd49131163e93f775484b0e 100644 (file)
--- a/src/glsl/ir_noop_swizzle.cpp
+++ b/src/glsl/ir_noop_swizzle.cpp
@@ -61,9 +61,9 @@ ir_noop_swizzle_visitor::handle_rvalue(ir_rvalue **rvalue)
       return;
    if (elems >= 2 && swiz->mask.y != 1)
       return;
-   if (elems >= 3 && swiz->mask.z != 1)
+   if (elems >= 3 && swiz->mask.z != 2)
       return;
-   if (elems >= 4 && swiz->mask.w != 1)
+   if (elems >= 4 && swiz->mask.w != 3)
       return;
 
    this->progress = true;