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glasm: Rework control flow introducing a syntax list

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This commit regresses VertexA shaders, their transformation pass has to
be adapted to the new control flow.
This commit is contained in:
ReinUsesLisp 2021-05-14 00:40:54 -03:00 • committed by ameerj
parent 7ff5851608
commit d54d7de40e
33 changed files with 437 additions and 505 deletions
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24
src/shader_recompiler/frontend/maxwell/program.cpp
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@ -4,6 +4,7 @@
#include <algorithm>
#include <memory>
#include <ranges>
#include <vector>
#include "shader_recompiler/frontend/ir/basic_block.h"
@ -15,6 +16,16 @@
namespace Shader::Maxwell {
namespace {
IR::BlockList GenerateBlocks(const IR::AbstractSyntaxList& syntax_list) {
auto syntax_blocks{syntax_list | std::views::filter([](const auto& node) {
return node.type == IR::AbstractSyntaxNode::Type::Block;
})};
IR::BlockList blocks(std::ranges::distance(syntax_blocks));
std::ranges::transform(syntax_blocks, blocks.begin(),
[](const IR::AbstractSyntaxNode& node) { return node.block; });
return blocks;
}
void RemoveUnreachableBlocks(IR::Program& program) {
// Some blocks might be unreachable if a function call exists unconditionally
// If this happens the number of blocks and post order blocks will mismatch
@ -23,7 +34,7 @@ void RemoveUnreachableBlocks(IR::Program& program) {
}
const auto begin{program.blocks.begin() + 1};
const auto end{program.blocks.end()};
const auto pred{[](IR::Block* block) { return block->ImmediatePredecessors().empty(); }};
const auto pred{[](IR::Block* block) { return block->ImmPredecessors().empty(); }};
program.blocks.erase(std::remove_if(begin, end, pred), end);
}
@ -110,8 +121,9 @@ void AddNVNStorageBuffers(IR::Program& program) {
IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Block>& block_pool,
Environment& env, Flow::CFG& cfg) {
IR::Program program;
program.blocks = VisitAST(inst_pool, block_pool, env, cfg);
program.post_order_blocks = PostOrder(program.blocks);
program.syntax_list = BuildASL(inst_pool, block_pool, env, cfg);
program.blocks = GenerateBlocks(program.syntax_list);
program.post_order_blocks = PostOrder(program.syntax_list.front());
program.stage = env.ShaderStage();
program.local_memory_size = env.LocalMemorySize();
switch (program.stage) {
@ -159,9 +171,7 @@ IR::Program MergeDualVertexPrograms(IR::Program& vertex_a, IR::Program& vertex_b
Optimization::VertexATransformPass(vertex_a);
Optimization::VertexBTransformPass(vertex_b);
std::swap(result.blocks, vertex_a.blocks);
for (IR::Block* block : vertex_b.blocks) {
result.blocks.push_back(block);
}
result.blocks.insert(result.blocks.end(), vertex_b.blocks.begin(), vertex_b.blocks.end());
result.stage = Stage::VertexB;
result.info = vertex_a.info;
result.local_memory_size = std::max(vertex_a.local_memory_size, vertex_b.local_memory_size);
@ -173,7 +183,7 @@ IR::Program MergeDualVertexPrograms(IR::Program& vertex_a, IR::Program& vertex_b
Optimization::JoinTextureInfo(result.info, vertex_b.info);
Optimization::JoinStorageInfo(result.info, vertex_b.info);
Optimization::DualVertexJoinPass(result);
result.post_order_blocks = PostOrder(result.blocks);
result.post_order_blocks = PostOrder(result.syntax_list.front());
Optimization::DeadCodeEliminationPass(result);
Optimization::VerificationPass(result);
Optimization::CollectShaderInfoPass(env_vertex_b, result);