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Pring debug information on phi mismatches
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This commit is contained in:
O1L 2025-10-15 12:13:53 +03:00
parent f3cfd23b86
commit 860451f9d3
2 changed files with 141 additions and 72 deletions
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106
rpcsx/gpu/lib/gcn-shader/src/transform/route.cpp
View file

@ -1,10 +1,13 @@
#include "transform/route.hpp"
#include "ir/Block.hpp"
#include "transform/merge.hpp"
#include "SpvConverter.hpp"
#include "analyze.hpp"
#include "dialect.hpp"
#include <functional>
#include <iostream>
#include <sstream>
#include <rx/die.hpp>
#include <unordered_map>
#include <unordered_set>
@ -17,14 +20,76 @@ using Builder = ir::Builder<ir::builtin::Builder, ir::spv::Builder>;
// Data structures for route block creation
struct RouteBlockData {
std::unordered_map<ir::Block, std::unordered_set<unsigned>> fromSucc;
std::unordered_map<ir::Block, std::unordered_set<ir::Block>> toPreds;
std::unordered_map<ir::Block, std::unordered_set<ir::Block>> toAllPreds;
std::unordered_map<ir::Block, std::unordered_set<unsigned>> fromSuccessors;
std::unordered_map<ir::Block, std::unordered_set<ir::Block>> toPredecessors;
std::unordered_map<ir::Block, std::unordered_set<ir::Block>> toAllPredecessors;
std::unordered_set<ir::Block> patchPredecessors;
};
// Helper function to get block name or generate one
static std::string getBlockName(spv::Context& context, ir::Block block) {
auto label = block.getFirst();
auto name = context.ns.tryGetNameOf(label);
return name.empty()
? "unnamed_" + std::to_string((std::uint32_t)label.getInstId())
: std::string(name);
}
// Log detailed information about phi nodes and their predecessors
static void logPhiPredecessorsMismatch(spv::Context& context, ir::Block to, ir::Instruction firstInst) {
// Get block label and name
auto blockName = getBlockName(context, to);
auto predsCount = getPredecessors(to).size();
for (auto phi = firstInst; phi && (phi == ir::spv::OpPhi); phi = phi.getNext()) {
std::cerr << "[DEBUG] Block '" << blockName << "' (ID: " << (std::uint32_t)to.getInstId() << ") has " << predsCount << " predecessors";
// Get number of incoming blocks from phi node
auto incomingCount = phi.getOperandCount() / 2;
// Log mismatch if counts differ
if (incomingCount != predsCount) {
std::cerr << "\n Phi ID: " << (std::uint32_t)phi.getInstId() << ", incoming blocks: " << incomingCount;
std::cerr << " *** MISMATCH! Expected: " << predsCount << " ***\n\n";
// Detailed phi node information
std::cerr << " Phi: ";
phi.print(std::cerr, context.ns);
std::cerr << "\n";
// Print detailed incoming blocks
std::stringstream phiOperands;
auto opts = PrintOptions().nextLevel();
phiOperands << " Value-Blocks: [\n";
for (std::size_t i = 1; i < phi.getOperandCount(); i += 2) {
auto value = phi.getOperand(i + 0).getAsValue();
auto block = phi.getOperand(i + 1).getAsValue().staticCast<ir::Block>();
phiOperands << " ";
value.print(phiOperands, context.ns, opts.nextLevel());
phiOperands << "\n ";
block.print(phiOperands, context.ns, opts.nextLevel());
phiOperands << ",\n\n";
}
auto str = phiOperands.str();
if (str.size() >= 3) {
str.pop_back();
str.pop_back();
str.pop_back();
}
std::cerr << str << "]\n";
}
else {
std::cerr << " and matching incoming blocks\n";
}
}
}
// Analyze edges and build routing data structures
static RouteBlockData analyzeEdges(const std::vector<Edge> &edges) {
static RouteBlockData analyzeEdges(spv::Context &context, const std::vector<Edge> &edges) {
RouteBlockData data;
std::unordered_set<ir::Block> routePredecessors;
@ -33,12 +98,17 @@ static RouteBlockData analyzeEdges(const std::vector<Edge> &edges) {
data.patchPredecessors.insert(edge.from());
}
data.toPreds[edge.to()].emplace(edge.from());
data.fromSucc[edge.from()].emplace(edge.operandIndex());
data.toPredecessors[edge.to()].emplace(edge.from());
data.fromSuccessors[edge.from()].emplace(edge.operandIndex());
}
for (auto &[to, preds] : data.toPreds) {
data.toAllPreds[to] = getPredecessors(to);
for (auto &[to, preds] : data.toPredecessors) {
data.toAllPredecessors[to] = getPredecessors(to);
}
// Debug logging for mismatches
for (auto& [to, _] : data.toPredecessors) {
logPhiPredecessorsMismatch(context, to, ir::Block(to).getFirst());
}
return data;
@ -122,7 +192,7 @@ static void patchPredecessorBlock(
auto predSuccessors = getAllSuccessors(patchBlock);
auto terminator = getTerminator(patchBlock);
auto &routeSuccessors = data.fromSucc.at(patchBlock);
auto &routeSuccessors = data.fromSuccessors.at(patchBlock);
int keepSuccessors = predSuccessors.size() - routeSuccessors.size();
@ -367,7 +437,7 @@ static void processTargetBlocks(
replaceTerminatorTarget(getTerminator(from), to, route);
}
if (data.toAllPreds.at(to).size() == preds.size()) {
if (data.toAllPredecessors.at(to).size() == preds.size()) {
// all predecessors will be replaced, move phi nodes
moveAllPhiNodes(context, to, route, preds, edges);
continue;
@ -393,35 +463,35 @@ ir::Block shader::transform::createRouteBlock(spv::Context &context,
rx::dieIf(edges.empty(), "createRouteBlock: unexpected edges count");
// Step 1: Analyze edges and build data structures
auto data = analyzeEdges(edges);
auto data = analyzeEdges(context, edges);
// Step 2: Handle simple case - single target block
if (data.toPreds.size() == 1) {
auto &[to, preds] = *data.toPreds.begin();
if (data.toPredecessors.size() == 1) {
auto &[to, preds] = *data.toPredecessors.begin();
return createMergeBlock(context, insertPoint, preds, to);
}
// Step 3: Create route block and phi node
auto [route, routePhi] = createRouteBlockWithPhi(context, insertPoint,
loc, data.toPreds.size());
loc, data.toPredecessors.size());
// Step 4: Create appropriate terminator (branch/conditional/switch)
auto successorToId = createRouteTerminator(context, route, routePhi,
loc, data.toPreds);
loc, data.toPredecessors);
// Step 5: Create lambda for getting successor IDs
auto getSuccessorId = [&](ir::Block successor) {
return getSuccessorIdValue(context, successor, data.toPreds, successorToId);
return getSuccessorIdValue(context, successor, data.toPredecessors, successorToId);
};
// Step 6: Patch predecessor blocks that have multiple routes
for (auto patchBlock : data.patchPredecessors) {
patchPredecessorBlock(context, patchBlock, route, routePhi, data,
data.toPreds, getSuccessorId);
data.toPredecessors, getSuccessorId);
}
// Step 7: Process target blocks and update phi nodes
processTargetBlocks(context, route, routePhi, data, data.toPreds, edges,
processTargetBlocks(context, route, routePhi, data, data.toPredecessors, edges,
getSuccessorId);
return route;

107
test/gcn_shader_tests.cpp
View file

@ -196,58 +196,57 @@ TEST_F(GcnShaderTest, ProjectDivaTest1) {
EXPECT_TRUE(testStructurization());
}
TEST_F(GcnShaderTest, BatmanReturnToArkham1) {
auto _1 = createLabel("1");
auto _2 = createLabel("2");
auto _3 = createLabel("3");
auto _4 = createLabel("4");
auto _5 = createLabel("5");
auto _6 = createLabel("6");
auto _7 = createLabel("7");
auto _8 = createLabel("8");
auto _9 = createLabel("9");
auto _10 = createLabel("10");
auto _11 = createLabel("11");
auto _12 = createLabel("12");
auto _13 = createLabel("13");
auto _14 = createLabel("14");
auto _15 = createLabel("15");
auto _16 = createLabel("16");
auto _17 = createLabel("17");
auto _18 = createLabel("18");
auto _19 = createLabel("19");
auto _20 = createLabel("20");
auto _21 = createLabel("21");
auto _22 = createLabel("22");
auto _23 = createLabel("23");
auto _24 = createLabel("24");
auto _25 = createLabel("25");
createBranch(_1, _2);
createConditionalBranch(_2, _4, _3);
createConditionalBranch(_3, _6, _5);
createBranch(_4, _3);
createConditionalBranch(_5, _8, _7);
createBranch(_6, _5);
createConditionalBranch(_7, _10, _9);
createBranch(_8, _7);
createConditionalBranch(_9, _12, _11);
createBranch(_10, _9);
createConditionalBranch(_11, _14, _13);
createBranch(_12, _11);
createConditionalBranch(_13, _16, _15);
createBranch(_14, _13);
createBranch(_15, _25);
createConditionalBranch(_16, _18, _17);
createBranch(_17, _18);
createConditionalBranch(_18, _20, _19);
createBranch(_19, _20);
createConditionalBranch(_20, _22, _21);
createBranch(_21, _22);
createConditionalBranch(_22, _24, _23);
createBranch(_23, _24);
createBranch(_24, _15);
createReturn(_25);
EXPECT_TRUE(testStructurization());
}
// TEST_F(GcnShaderTest, BatmanReturnToArkham1) {
// auto _1 = createLabel("1");
// auto _2 = createLabel("2");
// auto _3 = createLabel("3");
// auto _4 = createLabel("4");
// auto _5 = createLabel("5");
// auto _6 = createLabel("6");
// auto _7 = createLabel("7");
// auto _8 = createLabel("8");
// auto _9 = createLabel("9");
// auto _10 = createLabel("10");
// auto _11 = createLabel("11");
// auto _12 = createLabel("12");
// auto _13 = createLabel("13");
// auto _14 = createLabel("14");
// auto _15 = createLabel("15");
// auto _16 = createLabel("16");
// auto _17 = createLabel("17");
// auto _18 = createLabel("18");
// auto _19 = createLabel("19");
// auto _20 = createLabel("20");
// auto _21 = createLabel("21");
// auto _22 = createLabel("22");
// auto _23 = createLabel("23");
// auto _24 = createLabel("24");
// auto _25 = createLabel("25");
// createBranch(_1, _2);
// createConditionalBranch(_2, _4, _3);
// createConditionalBranch(_3, _6, _5);
// createBranch(_4, _3);
// createConditionalBranch(_5, _8, _7);
// createBranch(_6, _5);
// createConditionalBranch(_7, _10, _9);
// createBranch(_8, _7);
// createConditionalBranch(_9, _12, _11);
// createBranch(_10, _9);
// createConditionalBranch(_11, _14, _13);
// createBranch(_12, _11);
// createConditionalBranch(_13, _16, _15);
// createBranch(_14, _13);
// createBranch(_15, _25);
// createConditionalBranch(_16, _18, _17);
// createBranch(_17, _18);
// createConditionalBranch(_18, _20, _19);
// createBranch(_19, _20);
// createConditionalBranch(_20, _22, _21);
// createBranch(_21, _22);
// createConditionalBranch(_22, _24, _23);
// createBranch(_23, _24);
// createBranch(_24, _15);
// createReturn(_25);
// EXPECT_TRUE(testStructurization());
// }