[Mesa-dev] [PATCH 2/2] i965: add assert to while_jumps_before_offset()

[Timothy Arceri]

jip should always be negative here as its the result of
do instruction - while instruction.
---
 src/mesa/drivers/dri/i965/brw_eu_emit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c
index 257757f..f4bec33 100644
--- a/src/mesa/drivers/dri/i965/brw_eu_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c
@@ -2714,6 +2714,7 @@ while_jumps_before_offset(const struct gen_device_info *devinfo,
    int scale = 16 / brw_jump_scale(devinfo);
    int jip = devinfo->gen == 6 ? brw_inst_gen6_jump_count(devinfo, insn)
                                : brw_inst_jip(devinfo, insn);
+   assert(jip < 0);
    return while_offset + jip * scale <= start_offset;
 }
 
-- 
2.9.3