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-rw-r--r--src/glsl/linker.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 52c9322788..c462d31ef3 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -1284,6 +1284,7 @@ link_shaders(struct gl_shader_program *prog)
do_mod_to_fract(ir);
do_div_to_mul_rcp(ir);
do_explog_to_explog2(ir);
+ do_sub_to_add_neg(ir);
do {
progress = false;