Add a compilation tracing mechanism to the new compiler.
Code mostly imported from: https://android-review.googlesource.com/#/c/81653/.
Change-Id: I150fe942be0fb270e03fabb19032180f7a065d13
diff --git a/compiler/optimizing/optimizing_compiler.cc b/compiler/optimizing/optimizing_compiler.cc
index a5031e0..f435cb0 100644
--- a/compiler/optimizing/optimizing_compiler.cc
+++ b/compiler/optimizing/optimizing_compiler.cc
@@ -14,6 +14,7 @@
* limitations under the License.
*/
+#include <fstream>
#include <stdint.h>
#include "builder.h"
@@ -21,6 +22,7 @@
#include "compilers.h"
#include "driver/compiler_driver.h"
#include "driver/dex_compilation_unit.h"
+#include "graph_visualizer.h"
#include "nodes.h"
#include "ssa_liveness_analysis.h"
#include "utils/arena_allocator.h"
@@ -50,6 +52,22 @@
DISALLOW_COPY_AND_ASSIGN(CodeVectorAllocator);
};
+/**
+ * If set to true, generates a file suitable for the c1visualizer tool and IRHydra.
+ */
+static bool kIsVisualizerEnabled = false;
+
+/**
+ * Filter to apply to the visualizer. Methods whose name contain that filter will
+ * be in the file.
+ */
+static const char* kStringFilter = "";
+
+OptimizingCompiler::OptimizingCompiler(CompilerDriver* driver) : QuickCompiler(driver) {
+ if (kIsVisualizerEnabled) {
+ visualizer_output_.reset(new std::ofstream("art.cfg"));
+ }
+}
CompiledMethod* OptimizingCompiler::TryCompile(const DexFile::CodeItem* code_item,
uint32_t access_flags,
@@ -70,6 +88,7 @@
ArenaPool pool;
ArenaAllocator arena(&pool);
HGraphBuilder builder(&arena, &dex_compilation_unit, &dex_file);
+
HGraph* graph = builder.BuildGraph(*code_item);
if (graph == nullptr) {
if (shouldCompile) {
@@ -77,6 +96,8 @@
}
return nullptr;
}
+ HGraphVisualizer visualizer(visualizer_output_.get(), graph, kStringFilter, dex_compilation_unit);
+ visualizer.DumpGraph("builder");
InstructionSet instruction_set = GetCompilerDriver()->GetInstructionSet();
// The optimizing compiler currently does not have a Thumb2 assembler.
@@ -104,6 +125,8 @@
// Run these phases to get some test coverage.
graph->BuildDominatorTree();
graph->TransformToSSA();
+ visualizer.DumpGraph("ssa");
+
graph->FindNaturalLoops();
SsaLivenessAnalysis(*graph).Analyze();