Simd revisited by shai-almog · Pull Request #4742 · codenameone/CodenameOne

shai-almog · 2026-04-13T02:20:22Z

No description provided.

github-actions · 2026-04-13T02:28:32Z

✅ Continuous Quality Report

Test & Coverage

✅ Tests: 2381 total, 0 failed, 0 skipped
📊 Line coverage: 53.24% [HTML preview] [Download]
- Lowest covered classes
  - com.codename1.ui.Display$EdtException – 0.00%
  - com.codename1.ui.plaf.CSSBorder$LinearGradient – 0.00%
  - com.codename1.util.EasyThread$InQueueRunnable – 0.00%
  - com.codename1.components.FloatingActionButton$ReleaseActionListener – 0.00%
  - com.codename1.io.Oauth2$ShowAuthenticationActionListener – 0.00%
  - com.codename1.io.Oauth2$RefreshTokenActionListener – 0.00%
  - com.codename1.util.EasyThread$RunAndWaitRunnable – 0.00%
  - com.codename1.components.ToastBar$FlushAnimationCallback – 0.00%
  - com.codename1.ui.plaf.CSSBorder$ColorStop – 0.00%
  - com.codename1.ui.ElevationComparator – 0.00%

Static Analysis

SpotBugs [HTML preview] [Download]
- ❌ ByteCodeTranslator: 110 findings (High: 2, Normal: 81, Low: 27)
  - Top findings
    - High: com/codename1/tools/translator/BytecodeMethod.java:647 – Method com.codename1.tools.translator.BytecodeMethod.findWritableFields(Set) seems to be useless (rule: UC_USELESS_VOID_METHOD)
    - High: com/codename1/tools/translator/bytecodes/TryCatch.java:91 – Write to static field com.codename1.tools.translator.bytecodes.TryCatch.hasTryCatch from instance method com.codename1.tools.translator.bytecodes.TryCatch.appendInstruction(StringBuilder, List) (rule: ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD)
    - Normal: com/codename1/tools/translator/ByteCodeClass.java:1802 – com.codename1.tools.translator.ByteCodeClass.getBaseClassObject() may expose internal representation by returning ByteCodeClass.baseClassObject (rule: EI_EXPOSE_REP)
    - …and 107 more
- ❌ android: 414 findings (High: 24, Normal: 196, Low: 194)
  - Top findings
    - High: CodenameOne/src/com/codename1/impl/CodenameOneThread.java:48 – com.codename1.impl.CodenameOneThread.STACK_FRAME_SIZE isn't final but should be (rule: MS_SHOULD_BE_FINAL)
    - High: com/codename1/impl/android/AndroidImplementation.java:1085 – Write to static field com.codename1.impl.android.AndroidImplementation.context from instance method com.codename1.impl.android.AndroidImplementation.setContext(Context) (rule: ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD)
    - High: com/codename1/impl/android/AndroidImplementation.java:1286 – com.codename1.impl.android.AndroidImplementation.isDarkMode() has Boolean return type and returns explicit null (rule: NP_BOOLEAN_RETURN_NULL)
    - …and 411 more
- ❌ codenameone-maven-plugin: 496 findings (High: 1, Normal: 319, Low: 176)
  - Top findings
    - High: com/codename1/maven/AbstractCN1Mojo.java:807 – com.codename1.maven.AbstractCN1Mojo.OS isn't final but should be (rule: MS_SHOULD_BE_FINAL)
    - Normal: com/codename1/builders/AndroidGradleBuilder.java:1020 – Dead store to googleServicesJson in com.codename1.builders.AndroidGradleBuilder.build(File, BuildRequest) (rule: DLS_DEAD_LOCAL_STORE)
    - Normal: com/codename1/builders/AndroidGradleBuilder.java:1045 – Possible null pointer dereference in com.codename1.builders.AndroidGradleBuilder.build(File, BuildRequest) due to return value of called method (rule: NP_NULL_ON_SOME_PATH_FROM_RETURN_VALUE)
    - …and 493 more
- ❌ core-unittests: 1 findings (Normal: 1)
  - Top findings
    - Normal: CodenameOne/src/com/codename1/ui/util/MutableResource.java:239 – com.codename1.ui.util.MutableResource.saveL10N(DataOutputStream, Hashtable) makes inefficient use of keySet iterator instead of entrySet iterator (rule: WMI_WRONG_MAP_ITERATOR)
- ❌ ios: 125 findings (High: 4, Normal: 75, Low: 46)
  - Top findings
    - High: com/codename1/impl/ios/IOSImplementation.java:1229 – com.codename1.impl.ios.IOSImplementation.isDarkMode() has Boolean return type and returns explicit null (rule: NP_BOOLEAN_RETURN_NULL)
    - High: com/codename1/impl/ios/IOSImplementation.java:129 – com.codename1.impl.ios.IOSImplementation.nativeInstance isn't final but should be (rule: MS_SHOULD_BE_FINAL)
    - High: com/codename1/impl/ios/IOSImplementation.java:215 – Write to static field com.codename1.impl.ios.IOSImplementation.instance from instance method com.codename1.impl.ios.IOSImplementation.init(Object) (rule: ST_WRITE_TO_STATIC_FROM_INSTANCE_METHOD)
    - …and 122 more
✅ PMD: 0 findings (no issues) [Report archive]
❌ Checkstyle: 28 findings (Error: 28) [HTML preview] [Download]
- Top findings
  - Error: CodenameOne/src/com/codename1/util/Simd.java:84:31 – 'typecast' is not followed by whitespace. (rule: WhitespaceAfterCheck)
  - Error: CodenameOne/src/com/codename1/util/Simd.java:97:31 – 'typecast' is not followed by whitespace. (rule: WhitespaceAfterCheck)
  - Error: CodenameOne/src/com/codename1/util/Simd.java:104:27 – 'typecast' is not followed by whitespace. (rule: WhitespaceAfterCheck)
  - Error: CodenameOne/src/com/codename1/util/Simd.java:110:27 – 'typecast' is not followed by whitespace. (rule: WhitespaceAfterCheck)
  - Error: CodenameOne/src/com/codename1/util/Simd.java:116:27 – 'typecast' is not followed by whitespace. (rule: WhitespaceAfterCheck)
  - …and 23 more

Generated automatically by the PR CI workflow.

shai-almog · 2026-04-13T02:44:25Z

Compared 36 screenshots: 36 matched.
✅ Native iOS screenshot tests passed.

Benchmark Results

VM Translation Time: 0 seconds
Compilation Time: 170 seconds

Detailed Performance Metrics

Metric	Duration
Simulator Boot	15000 ms
Simulator Boot (Run)	1000 ms
App Install	2000 ms
App Launch	7000 ms
Test Execution	198000 ms
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 native encode	1395.000 ms
Base64 CN1 encode	1888.000 ms
Base64 encode ratio (CN1/native)	1.353x (35.3% slower)
Base64 native decode	1105.000 ms
Base64 CN1 decode	1841.000 ms
Base64 decode ratio (CN1/native)	1.666x (66.6% slower)
Base64 SIMD encode	1365.000 ms
Base64 encode ratio (SIMD/native)	0.978x (2.2% faster)
Base64 encode ratio (SIMD/CN1)	0.723x (27.7% faster)
Base64 SIMD decode	1089.000 ms
Base64 decode ratio (SIMD/native)	0.986x (1.4% faster)
Base64 decode ratio (SIMD/CN1)	0.592x (40.8% faster)

github-actions · 2026-04-13T02:54:12Z

✅ ByteCodeTranslator Quality Report

Test & Coverage

✅ Tests: 381 total, 0 failed, 2 skipped

Benchmark Results

Execution Time: 10823 ms
Hotspots (Top 20 sampled methods):
- 22.82% java.lang.String.indexOf (437 samples)
- 17.91% com.codename1.tools.translator.Parser.isMethodUsed (343 samples)
- 16.76% java.util.ArrayList.indexOf (321 samples)
- 11.07% com.codename1.tools.translator.Parser.addToConstantPool (212 samples)
- 4.65% java.lang.Object.hashCode (89 samples)
- 2.04% java.lang.System.identityHashCode (39 samples)
- 1.51% com.codename1.tools.translator.ByteCodeClass.markDependent (29 samples)
- 1.36% com.codename1.tools.translator.ByteCodeClass.fillVirtualMethodTable (26 samples)
- 1.36% java.lang.StringBuilder.append (26 samples)
- 1.31% com.codename1.tools.translator.ByteCodeClass.calcUsedByNative (25 samples)
- 0.99% java.lang.StringCoding.encode (19 samples)
- 0.89% com.codename1.tools.translator.BytecodeMethod.optimize (17 samples)
- 0.78% com.codename1.tools.translator.Parser.generateClassAndMethodIndexHeader (15 samples)
- 0.68% com.codename1.tools.translator.BytecodeMethod.isMethodUsedByNative (13 samples)
- 0.57% com.codename1.tools.translator.ByteCodeClass.isDefaultInterfaceMethod (11 samples)
- 0.52% com.codename1.tools.translator.Parser.cullMethods (10 samples)
- 0.47% com.codename1.tools.translator.BytecodeMethod.appendCMethodPrefix (9 samples)
- 0.47% com.codename1.tools.translator.Parser.writeOutput (9 samples)
- 0.47% java.util.ArrayList$Itr.next (9 samples)
- 0.47% sun.nio.fs.UnixNativeDispatcher.open0 (9 samples)
⚠️ Coverage report not generated.

Static Analysis

✅ SpotBugs: no findings (report was not generated by the build).
⚠️ PMD report not generated.
⚠️ Checkstyle report not generated.

Generated automatically by the PR CI workflow.

shai-almog · 2026-04-13T03:32:46Z

Compared 37 screenshots: 37 matched.

Native Android coverage

📊 Line coverage: 7.83% (4131/52730 lines covered) [HTML preview] (artifact android-coverage-report, jacocoAndroidReport/html/index.html)
- Other counters: instruction 6.15% (20422/332268), branch 2.95% (946/32048), complexity 3.65% (1121/30673), method 6.42% (919/14314), class 10.68% (203/1900)
- Lowest covered classes
  - kotlin.collections.kotlin.collections.ArraysKt___ArraysKt – 0.00% (0/6327 lines covered)
  - kotlin.collections.unsigned.kotlin.collections.unsigned.UArraysKt___UArraysKt – 0.00% (0/2384 lines covered)
  - org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.ClassReader – 0.00% (0/1519 lines covered)
  - kotlin.collections.kotlin.collections.CollectionsKt___CollectionsKt – 0.00% (0/1148 lines covered)
  - org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.MethodWriter – 0.00% (0/923 lines covered)
  - kotlin.sequences.kotlin.sequences.SequencesKt___SequencesKt – 0.00% (0/730 lines covered)
  - kotlin.text.kotlin.text.StringsKt___StringsKt – 0.00% (0/623 lines covered)
  - org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.Frame – 0.00% (0/564 lines covered)
  - kotlin.collections.kotlin.collections.ArraysKt___ArraysJvmKt – 0.00% (0/495 lines covered)
  - kotlinx.coroutines.kotlinx.coroutines.JobSupport – 0.00% (0/423 lines covered)

✅ Native Android screenshot tests passed.

Native Android coverage

📊 Line coverage: 7.83% (4131/52730 lines covered) [HTML preview] (artifact android-coverage-report, jacocoAndroidReport/html/index.html)
- Other counters: instruction 6.15% (20422/332268), branch 2.95% (946/32048), complexity 3.65% (1121/30673), method 6.42% (919/14314), class 10.68% (203/1900)
- Lowest covered classes
  - kotlin.collections.kotlin.collections.ArraysKt___ArraysKt – 0.00% (0/6327 lines covered)
  - kotlin.collections.unsigned.kotlin.collections.unsigned.UArraysKt___UArraysKt – 0.00% (0/2384 lines covered)
  - org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.ClassReader – 0.00% (0/1519 lines covered)
  - kotlin.collections.kotlin.collections.CollectionsKt___CollectionsKt – 0.00% (0/1148 lines covered)
  - org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.MethodWriter – 0.00% (0/923 lines covered)
  - kotlin.sequences.kotlin.sequences.SequencesKt___SequencesKt – 0.00% (0/730 lines covered)
  - kotlin.text.kotlin.text.StringsKt___StringsKt – 0.00% (0/623 lines covered)
  - org.jacoco.agent.rt.internal_b6258fc.asm.org.jacoco.agent.rt.internal_b6258fc.asm.Frame – 0.00% (0/564 lines covered)
  - kotlin.collections.kotlin.collections.ArraysKt___ArraysJvmKt – 0.00% (0/495 lines covered)
  - kotlinx.coroutines.kotlinx.coroutines.JobSupport – 0.00% (0/423 lines covered)

Benchmark Results

Detailed Performance Metrics

Metric	Duration
Base64 payload size	8192 bytes
Base64 benchmark iterations	6000
Base64 native encode	877.000 ms
Base64 CN1 encode	118.000 ms
Base64 encode ratio (CN1/native)	0.135x (86.5% faster)
Base64 native decode	781.000 ms
Base64 CN1 decode	263.000 ms
Base64 decode ratio (CN1/native)	0.337x (66.3% faster)

shai-almog added 2 commits April 12, 2026 20:57

Initial Simd API

e9708cf

Added SIMD Support for Base64 algorithm

d49f9af

shai-almog changed the title ~~Simd revisite~~ Simd revisited Apr 13, 2026

Fixed ci allocations and removed allocations

6dba7c9

Removed unused variables

5493419

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Simd revisited#4742

Simd revisited#4742
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