From 5e89be331f6d00cf15278c50277cce2e1b5f769b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Sch=C3=BCrmann?= <daniel@schuermann.dev>
Date: Wed, 25 Mar 2026 14:18:54 +0100
Subject: [PATCH] aco/lower_branches: Fix try_rotate_latch_block()

Found by inspection.

Fixes: 97f095f6e060e9a3bbddf7536a734ccb20b9eeb8 ('aco/lower_branches: Add try_rotate_latch_block() optimization')
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40628>
---
 src/amd/compiler/aco_lower_branches.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/amd/compiler/aco_lower_branches.cpp b/src/amd/compiler/aco_lower_branches.cpp
index f4d36566f46..2da300780a9 100644
--- a/src/amd/compiler/aco_lower_branches.cpp
+++ b/src/amd/compiler/aco_lower_branches.cpp
@@ -599,7 +599,8 @@ try_rotate_latch_block(branch_ctx& ctx, Block& header)
          continue;
       } else if (pred.linear_succs[0] == block.index) {
          /* Check if there is a fall-through path for the jump target. */
-         if (block.index > pred.linear_succs[1] || (pred.linear_succs[1] & block_kind_loop_latch))
+         if (block.index > pred.linear_succs[1] ||
+             (ctx.program->blocks[pred.linear_succs[1]].kind & block_kind_loop_latch))
             return;
 
          for (unsigned j = block.index + 1; j < pred.linear_succs[1]; j++) {