From 2597cee85b74be40bfecf0dc9cda90263d6cce40 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Mon, 12 Apr 2021 19:41:53 -0300
Subject: [PATCH] shader: Add constant propagation for *&^| binary operations

---
 .../ir_opt/constant_propagation_pass.cpp             | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/shader_recompiler/ir_opt/constant_propagation_pass.cpp b/src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
index 61fbbe04cb..ee73b5b603 100644
--- a/src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
+++ b/src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
@@ -422,6 +422,9 @@ void ConstantPropagation(IR::Block& block, IR::Inst& inst) {
         return FoldAdd<u32>(block, inst);
     case IR::Opcode::ISub32:
         return FoldISub32(inst);
+    case IR::Opcode::IMul32:
+        FoldWhenAllImmediates(inst, [](u32 a, u32 b) { return a * b; });
+        return;
     case IR::Opcode::BitCastF32U32:
         return FoldBitCast<IR::Opcode::BitCastF32U32, f32, u32>(inst, IR::Opcode::BitCastU32F32);
     case IR::Opcode::BitCastU32F32:
@@ -479,6 +482,15 @@ void ConstantPropagation(IR::Block& block, IR::Inst& inst) {
     case IR::Opcode::INotEqual:
         FoldWhenAllImmediates(inst, [](u32 a, u32 b) { return a != b; });
         return;
+    case IR::Opcode::BitwiseAnd32:
+        FoldWhenAllImmediates(inst, [](u32 a, u32 b) { return a & b; });
+        return;
+    case IR::Opcode::BitwiseOr32:
+        FoldWhenAllImmediates(inst, [](u32 a, u32 b) { return a | b; });
+        return;
+    case IR::Opcode::BitwiseXor32:
+        FoldWhenAllImmediates(inst, [](u32 a, u32 b) { return a ^ b; });
+        return;
     case IR::Opcode::BitFieldUExtract:
         FoldWhenAllImmediates(inst, [](u32 base, u32 shift, u32 count) {
             if (static_cast<size_t>(shift) + static_cast<size_t>(count) > Common::BitSize<u32>()) {