dd

tools/simd-bench/README.md

@@ -30,6 +30,9 @@ macOS / Linux:
 ./run.sh
 ```
 
+The run scripts compile the sources and create the ignored `simd-bench.jar` locally when it is
+missing. Use `build.bat` or `./build.sh` to rebuild it explicitly.
+
 Or invoke directly (the `--add-modules` flag is required because the Vector API
 is still an incubator module):
 

tools/simd-bench/build.bat

@@ -0,0 +1,14 @@
+@echo off
+setlocal
+cd /d "%~dp0"
+if exist out rmdir /s /q out
+mkdir out
+dir /s /b src\*.java > sources.txt
+javac --release 25 --add-modules jdk.incubator.vector -d out @sources.txt
+if errorlevel 1 (
+  del sources.txt
+  exit /b 1
+)
+del sources.txt
+jar --create --file simd-bench.jar --main-class simdbench.Bench -C out .
+exit /b %errorlevel%

tools/simd-bench/build.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -euo pipefail
+cd "$(dirname "$0")"
+sources_file="$(mktemp)"
+trap 'rm -f "$sources_file"' EXIT
+find src -name '*.java' -print | sort > "$sources_file"
+rm -rf out
+mkdir -p out
+javac --release 25 --add-modules jdk.incubator.vector -d out "@$sources_file"
+jar --create --file simd-bench.jar --main-class simdbench.Bench -C out .

tools/simd-bench/run.bat

@@ -1,2 +1,4 @@
 @echo off
+call build.bat
+if errorlevel 1 exit /b 1
 java --add-modules jdk.incubator.vector -jar simd-bench.jar %*

tools/simd-bench/run.sh

@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
 set -euo pipefail
 cd "$(dirname "$0")"
+if [[ ! -f simd-bench.jar ]] || find src -name '*.java' -newer simd-bench.jar | grep -q .; then
+    ./build.sh
+fi
 java --add-modules jdk.incubator.vector -jar simd-bench.jar "$@"