[Mesa-dev] [PATCH] glsl: fix glsl optimization infinite loop from copy_propagation_elements

Fixes a possible infinite loop in glsl optimization due to interaction between copy_propagation_elements and swizzle_swizzle. This approach is based on handle_rvalue appearing to already handle a swizzle's referenced value. As a result it does not seem correct to also call handle_rvalue with the re

[Mesa-dev] glsl optimizations infinite loop patch

Hi all, So this is my attempt at a fix for https://bugs.freedesktop.org/show_bug.cgi?id=34006. Any feedback on if this looks right to anyone is much appreciated. Sven Arvidsson did confirm on bugzilla that the patch does not cause any piglit regressions and does also fix the infinite loop issu