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-rw-r--r--src/gallium/drivers/freedreno/ir3/ir3_legalize.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/src/gallium/drivers/freedreno/ir3/ir3_legalize.c b/src/gallium/drivers/freedreno/ir3/ir3_legalize.c
index 9d443d72c33..239bfc28826 100644
--- a/src/gallium/drivers/freedreno/ir3/ir3_legalize.c
+++ b/src/gallium/drivers/freedreno/ir3/ir3_legalize.c
@@ -335,7 +335,22 @@ resolve_jump(struct ir3_instruction *instr)
target = list_first_entry(&tblock->instr_list,
struct ir3_instruction, node);
- if ((!target) || (target->ip == (instr->ip + 1))) {
+ /* TODO maybe a less fragile way to do this. But we are expecting
+ * a pattern from sched_block() that looks like:
+ *
+ * br !p0.x, #else-block
+ * br p0.x, #if-block
+ *
+ * if the first branch target is +2, or if 2nd branch target is +1
+ * then we can just drop the jump.
+ */
+ unsigned next_block;
+ if (instr->cat0.inv == true)
+ next_block = 2;
+ else
+ next_block = 1;
+
+ if ((!target) || (target->ip == (instr->ip + next_block))) {
list_delinit(&instr->node);
return true;
} else {