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-rw-r--r--src/mesa/tnl/t_vb_program.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mesa/tnl/t_vb_program.c b/src/mesa/tnl/t_vb_program.c
index 17eefe7032..0a959a04af 100644
--- a/src/mesa/tnl/t_vb_program.c
+++ b/src/mesa/tnl/t_vb_program.c
@@ -90,6 +90,9 @@ init_machine(GLcontext *ctx, struct gl_program_machine *machine)
machine->CondCodes[1] = COND_EQ;
machine->CondCodes[2] = COND_EQ;
machine->CondCodes[3] = COND_EQ;
+
+ /* init call stack */
+ machine->StackDepth = 0;
}