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Refining conditions if method can be optimized

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This commit is contained in:
Denis Zharkov
2014-09-24 15:49:39 +04:00
parent e32f307960
commit 7de406991a
1 changed files with 10 additions and 3 deletions
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compiler/backend/src/org/jetbrains/jet/codegen/optimization/OptimizationMethodVisitor.java
+10 -3
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@@ -33,7 +33,7 @@ import java.util.ArrayList;
import java.util.List; import java.util.List;
public class OptimizationMethodVisitor extends MethodVisitor { public class OptimizationMethodVisitor extends MethodVisitor {
private static final int MAX_INSTRUCTIONS_SIZE_TO_OPTIMIZE = 5000; private static final int MEMORY_LIMIT_BY_METHOD_MB = 50;
private static final MethodTransformer MAIN_METHOD_TRANSFORMER = new RedundantNullCheckMethodTransformer( private static final MethodTransformer MAIN_METHOD_TRANSFORMER = new RedundantNullCheckMethodTransformer(
new RedundantBoxingMethodTransformer(null) new RedundantBoxingMethodTransformer(null)
); );
@@ -65,8 +65,7 @@ public class OptimizationMethodVisitor extends MethodVisitor {
super.visitEnd(); super.visitEnd();
if (methodNode.instructions.size() > 0 && if (canBeAnalyzed(methodNode)) {
methodNode.instructions.size() <= MAX_INSTRUCTIONS_SIZE_TO_OPTIMIZE) {
MAIN_METHOD_TRANSFORMER.transform("fake", methodNode); MAIN_METHOD_TRANSFORMER.transform("fake", methodNode);
} }
@@ -113,4 +112,12 @@ public class OptimizationMethodVisitor extends MethodVisitor {
return traceMethodVisitor; return traceMethodVisitor;
} }
private static boolean canBeAnalyzed(@NotNull MethodNode node) {
int totalFramesSizeMb = node.instructions.size() *
(node.maxLocals + node.maxStack) / (1024 * 1024);
return node.instructions.size() > 0 &&
totalFramesSizeMb < MEMORY_LIMIT_BY_METHOD_MB;
}
} }