From 5f22cd89e20cd39c1395b7bd3b8e667a40f53751 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 31 Mar 2021 19:46:38 -0300
Subject: shader: Fix constant propagation to use reverse post order

---
 src/shader_recompiler/ir_opt/constant_propagation_pass.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/shader_recompiler/ir_opt/constant_propagation_pass.cpp b/src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
index 052f1609b..7da4d50ef 100644
--- a/src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
+++ b/src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
@@ -5,6 +5,7 @@
 #include <algorithm>
 #include <tuple>
 #include <type_traits>
+#include <ranges>
 
 #include "common/bit_cast.h"
 #include "common/bit_util.h"
@@ -424,7 +425,7 @@ void ConstantPropagation(IR::Block& block, IR::Inst& inst) {
 } // Anonymous namespace
 
 void ConstantPropagationPass(IR::Program& program) {
-    for (IR::Block* const block : program.post_order_blocks) {
+    for (IR::Block* const block : program.post_order_blocks | std::views::reverse) {
         for (IR::Inst& inst : block->Instructions()) {
             ConstantPropagation(*block, inst);
         }
-- 
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