From 3f4444b552c47e07ff934750e25740a60382db0b Mon Sep 17 00:00:00 2001
From: Fernando Sahmkow <fsahmkow27@gmail.com>
Date: Fri, 24 Sep 2021 01:14:49 +0200
Subject: Shader Compiler: avoid overflowed indices on indixed samplers.
---
src/shader_recompiler/ir_opt/texture_pass.cpp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'src/shader_recompiler/ir_opt/texture_pass.cpp')
diff --git a/src/shader_recompiler/ir_opt/texture_pass.cpp b/src/shader_recompiler/ir_opt/texture_pass.cpp
index 44ad10d43f..225c238fb6 100644
--- a/src/shader_recompiler/ir_opt/texture_pass.cpp
+++ b/src/shader_recompiler/ir_opt/texture_pass.cpp
@@ -492,7 +492,8 @@ void TexturePass(Environment& env, IR::Program& program) {
const auto insert_point{IR::Block::InstructionList::s_iterator_to(*inst)};
IR::IREmitter ir{*texture_inst.block, insert_point};
const IR::U32 shift{ir.Imm32(std::countr_zero(DESCRIPTOR_SIZE))};
- inst->SetArg(0, ir.ShiftRightArithmetic(cbuf.dynamic_offset, shift));
+ inst->SetArg(0, ir.SMin(ir.ShiftRightArithmetic(cbuf.dynamic_offset, shift),
+ ir.Imm32(DESCRIPTOR_SIZE - 1)));
} else {
inst->SetArg(0, IR::Value{});
}
--
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