From 7d348005317c1d5f88b2472de64a083defa2feab Mon Sep 17 00:00:00 2001 From: Ameer J <52414509+ameerj@users.noreply.github.com> Date: Sat, 28 Oct 2023 18:44:27 -0400 Subject: shader_recompiler: Align SSBO offsets to meet host requirements Co-Authored-By: Billy Laws --- .../ir_opt/global_memory_to_storage_buffer_pass.cpp | 13 +++++++++---- src/shader_recompiler/ir_opt/passes.h | 2 +- 2 files changed, 10 insertions(+), 5 deletions(-) (limited to 'src/shader_recompiler/ir_opt') diff --git a/src/shader_recompiler/ir_opt/global_memory_to_storage_buffer_pass.cpp b/src/shader_recompiler/ir_opt/global_memory_to_storage_buffer_pass.cpp index d1e59f22e..0cea79945 100644 --- a/src/shader_recompiler/ir_opt/global_memory_to_storage_buffer_pass.cpp +++ b/src/shader_recompiler/ir_opt/global_memory_to_storage_buffer_pass.cpp @@ -11,6 +11,7 @@ #include "shader_recompiler/frontend/ir/breadth_first_search.h" #include "shader_recompiler/frontend/ir/ir_emitter.h" #include "shader_recompiler/frontend/ir/value.h" +#include "shader_recompiler/host_translate_info.h" #include "shader_recompiler/ir_opt/passes.h" namespace Shader::Optimization { @@ -408,7 +409,7 @@ void CollectStorageBuffers(IR::Block& block, IR::Inst& inst, StorageInfo& info) } /// Returns the offset in indices (not bytes) for an equivalent storage instruction -IR::U32 StorageOffset(IR::Block& block, IR::Inst& inst, StorageBufferAddr buffer) { +IR::U32 StorageOffset(IR::Block& block, IR::Inst& inst, StorageBufferAddr buffer, u32 alignment) { IR::IREmitter ir{block, IR::Block::InstructionList::s_iterator_to(inst)}; IR::U32 offset; if (const std::optional low_addr{TrackLowAddress(&inst)}) { @@ -421,7 +422,10 @@ IR::U32 StorageOffset(IR::Block& block, IR::Inst& inst, StorageBufferAddr buffer } // Subtract the least significant 32 bits from the guest offset. The result is the storage // buffer offset in bytes. - const IR::U32 low_cbuf{ir.GetCbuf(ir.Imm32(buffer.index), ir.Imm32(buffer.offset))}; + IR::U32 low_cbuf{ir.GetCbuf(ir.Imm32(buffer.index), ir.Imm32(buffer.offset))}; + + // Align the offset base to match the host alignment requirements + low_cbuf = ir.BitwiseAnd(low_cbuf, ir.Imm32(~(alignment - 1U))); return ir.ISub(offset, low_cbuf); } @@ -516,7 +520,7 @@ void Replace(IR::Block& block, IR::Inst& inst, const IR::U32& storage_index, } } // Anonymous namespace -void GlobalMemoryToStorageBufferPass(IR::Program& program) { +void GlobalMemoryToStorageBufferPass(IR::Program& program, const HostTranslateInfo& host_info) { StorageInfo info; for (IR::Block* const block : program.post_order_blocks) { for (IR::Inst& inst : block->Instructions()) { @@ -540,7 +544,8 @@ void GlobalMemoryToStorageBufferPass(IR::Program& program) { const IR::U32 index{IR::Value{static_cast(info.set.index_of(it))}}; IR::Block* const block{storage_inst.block}; IR::Inst* const inst{storage_inst.inst}; - const IR::U32 offset{StorageOffset(*block, *inst, storage_buffer)}; + const IR::U32 offset{ + StorageOffset(*block, *inst, storage_buffer, host_info.min_ssbo_alignment)}; Replace(*block, *inst, index, offset); } } diff --git a/src/shader_recompiler/ir_opt/passes.h b/src/shader_recompiler/ir_opt/passes.h index 629d18fa1..7082fc5f2 100644 --- a/src/shader_recompiler/ir_opt/passes.h +++ b/src/shader_recompiler/ir_opt/passes.h @@ -16,7 +16,7 @@ void CollectShaderInfoPass(Environment& env, IR::Program& program); void ConditionalBarrierPass(IR::Program& program); void ConstantPropagationPass(Environment& env, IR::Program& program); void DeadCodeEliminationPass(IR::Program& program); -void GlobalMemoryToStorageBufferPass(IR::Program& program); +void GlobalMemoryToStorageBufferPass(IR::Program& program, const HostTranslateInfo& host_info); void IdentityRemovalPass(IR::Program& program); void LowerFp64ToFp32(IR::Program& program); void LowerFp16ToFp32(IR::Program& program); -- cgit v1.2.3