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Shader Compiler: avoid overflowed indices on indixed samplers.

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This commit is contained in:
Fernando Sahmkow
2021-09-24 01:14:49 +02:00
parent d702b393a4
commit 3f4444b552
1 changed files with 2 additions and 1 deletions
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3
src/shader_recompiler/ir_opt/texture_pass.cpp
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@@ -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{});
}