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authorRob Clark <robclark@freedesktop.org>2016-04-11 13:03:51 -0400
committerRob Clark <robclark@freedesktop.org>2016-04-13 14:15:13 -0400
commitf68f6c02466f89decb02e8373c7c3b46a72a621f (patch)
treeae9b8dfdba1131b601b46c397ebba06fceed8144
parentdd70945e09a348c3aa54675c65c40a284e78c362 (diff)
freedreno/ir3: hack to avoid getting stuck in a loop
There are still some edge cases which result in a neighbor-loop. Which needs to be fixed, but this hack at least makes deqp tests finish. Signed-off-by: Rob Clark <robclark@freedesktop.org>
-rw-r--r--src/gallium/drivers/freedreno/ir3/ir3.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/gallium/drivers/freedreno/ir3/ir3.h b/src/gallium/drivers/freedreno/ir3/ir3.h
index 3859f6a39f3..f68275e568c 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3.h
+++ b/src/gallium/drivers/freedreno/ir3/ir3.h
@@ -308,8 +308,14 @@ struct ir3_instruction {
static inline struct ir3_instruction *
ir3_neighbor_first(struct ir3_instruction *instr)
{
- while (instr->cp.left)
+ int cnt = 0;
+ while (instr->cp.left) {
instr = instr->cp.left;
+ if (++cnt > 0xffff) {
+ debug_assert(0);
+ break;
+ }
+ }
return instr;
}
@@ -322,6 +328,10 @@ static inline int ir3_neighbor_count(struct ir3_instruction *instr)
while (instr->cp.right) {
num++;
instr = instr->cp.right;
+ if (num > 0xffff) {
+ debug_assert(0);
+ break;
+ }
}
return num;