russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
68 lines
3.5 KiB
Bash
Executable file
68 lines
3.5 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Patches GraphUtils.java (one line), compiles the patched class via
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# --patch-module, then runs InferenceGraphScalingTest against the original
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# and patched jdk.compiler side-by-side.
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#
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# Usage: cd tests && bash bench/patch-and-time.sh
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set -euo pipefail
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JAVA="java"
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JAVAC="java -m jdk.compiler/com.sun.tools.javac.Main"
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REPO_ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
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SRC="$REPO_ROOT/src/jdk.compiler/share/classes/com/sun/tools/javac/util/GraphUtils.java"
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PATCH_SRC="/tmp/jt-patch/com/sun/tools/javac/util"
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PATCH_CLASSES="/tmp/jt-patch-classes"
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EXPORTS="--add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED"
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TESTS="$(cd "$(dirname "$0")/.." && pwd)"
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echo "=== Tarjan Before/After: Real GraphUtils timing ==="
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echo ""
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# ── Compile test classes ───────────────────────────────────────────────────────
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echo "[setup] Compiling integration test classes..."
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cd "$TESTS"
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$JAVAC $EXPORTS -cp . support/AbstractTestNode.java integration/InferenceGraphScalingTest.java
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# ── BEFORE: original GraphUtils ───────────────────────────────────────────────
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echo ""
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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echo " BEFORE (defective: stack.contains(n) — O(V²))"
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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$JAVA $EXPORTS -cp . integration.InferenceGraphScalingTest
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# ── Apply patch ────────────────────────────────────────────────────────────────
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echo ""
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echo "[patch] Applying: stack.contains(n) → n.active (GraphUtils.java:186)"
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mkdir -p "$PATCH_SRC" "$PATCH_CLASSES"
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cp "$SRC" "$PATCH_SRC/GraphUtils.java"
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sed -i 's/} else if (stack\.contains(n)) {/} else if (n.active) {/' \
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"$PATCH_SRC/GraphUtils.java"
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if grep -q "n.active" "$PATCH_SRC/GraphUtils.java"; then
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echo "[patch] ✓ Patch confirmed"
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else
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echo "[patch] ✗ Patch failed — aborting" >&2; exit 1
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fi
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$JAVAC \
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--patch-module "jdk.compiler=/tmp/jt-patch" \
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$EXPORTS \
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-d "$PATCH_CLASSES" \
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"$PATCH_SRC/GraphUtils.java"
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echo "[patch] ✓ Patched class compiled → $PATCH_CLASSES"
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# ── AFTER: patched GraphUtils ─────────────────────────────────────────────────
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echo ""
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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echo " AFTER (fixed: n.active — O(V+E))"
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echo "━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━"
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$JAVA \
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--patch-module "jdk.compiler=$PATCH_CLASSES" \
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$EXPORTS \
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-cp . \
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integration.InferenceGraphScalingTest
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# ── Cleanup ────────────────────────────────────────────────────────────────────
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rm -rf /tmp/jt-patch /tmp/jt-patch-classes
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echo ""
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echo "Done."
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