The optimization logic relies on being able to read out constbuf values
from program parameters. However that only works if there's no relative
addressing involved.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91173
Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
---
 src/mesa/program/prog_opt_constant_fold.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/mesa/program/prog_opt_constant_fold.c 
b/src/mesa/program/prog_opt_constant_fold.c
index 3811c0d..e2518e6 100644
--- a/src/mesa/program/prog_opt_constant_fold.c
+++ b/src/mesa/program/prog_opt_constant_fold.c
@@ -38,6 +38,8 @@ src_regs_are_constant(const struct prog_instruction *inst, 
unsigned num_srcs)
    for (i = 0; i < num_srcs; i++) {
       if (inst->SrcReg[i].File != PROGRAM_CONSTANT)
         return false;
+      if (inst->SrcReg[i].RelAddr)
+         return false;
    }
 
    return true;
-- 
2.3.6

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