From 3ecd13cec25ec921f32d5279093984bf6499ed41 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Thu, 24 Mar 2022 12:46:58 +0100
Subject: [PATCH] [dxbc] Only emit temp array range check for dynamically
 indexed stores

Generates less code and makes things slightly more readable.
---
 src/dxbc/dxbc_compiler.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/dxbc/dxbc_compiler.cpp b/src/dxbc/dxbc_compiler.cpp
index 5dcdc673..d1478a80 100644
--- a/src/dxbc/dxbc_compiler.cpp
+++ b/src/dxbc/dxbc_compiler.cpp
@@ -5721,7 +5721,12 @@ namespace dxvk {
   void DxbcCompiler::emitRegisterStore(
     const DxbcRegister&           reg,
           DxbcRegisterValue       value) {
-    if (reg.type == DxbcOperandType::IndexableTemp) {
+    bool doRangeCheck = false;
+
+    if (reg.type == DxbcOperandType::IndexableTemp)
+      doRangeCheck = reg.idx[1].relReg != nullptr;
+
+    if (doRangeCheck) {
       DxbcRegisterValue vectorId = emitIndexLoad(reg.idx[1]);
       uint32_t boundsCheck = m_module.opULessThan(
         m_module.defBoolType(), vectorId.id,