GLSL: fix lower_jumps to report progress properly

A fix for lower_jumps progress reporting, very much like similar in
c1e591eed.

NOTE: This is a candidate for stable branches.

Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/glsl/lower_jumps.cpp b/src/glsl/lower_jumps.cpp
index 92813f567f1..bfc8c013bda 100644
--- a/src/glsl/lower_jumps.cpp
+++ b/src/glsl/lower_jumps.cpp
@@ -1002,10 +1002,12 @@ do_lower_jumps(exec_list *instructions, bool pull_out_jumps, bool lower_sub_retu
    v.lower_sub_return = lower_sub_return;
    v.lower_main_return = lower_main_return;
 
+   bool progress_ever = false;
    do {
       v.progress = false;
       visit_exec_list(instructions, &v);
+      progress_ever = v.progress || progress_ever;
    } while (v.progress);
 
-   return v.progress;
+   return progress_ever;
 }