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Daily Perf Improver: Add build steps configuration
This commit adds the GitHub Action configuration file for setting up the Z3 build environment for performance development work. The action includes: - Installing build dependencies (cmake, ninja, python3, etc.) - Cleaning any polluted source tree from previous Python builds - Configuring CMake with RelWithDebInfo for performance work - Building Z3 and test executables - Cloning z3test repository for benchmarks - Setting up performance measurement tools - Creating micro-benchmark infrastructure This configuration is based on the research and plan outlined in issue #7872 and follows the standard CMake build process documented in README-CMake.md. > AI-generated content by [Daily Perf Improver](https://github.com/Z3Prover/z3/actions/runs/17735701277) may contain mistakes.
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Daily Perf Improver
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.github/actions/daily-perf-improver/build-steps/action.yml
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.github/actions/daily-perf-improver/build-steps/action.yml
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name: 'Z3 Performance Development Build Steps'
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description: 'Set up Z3 build environment for performance development and testing'
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runs:
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using: "composite"
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steps:
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- name: Install dependencies
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shell: bash
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run: |
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echo "Installing dependencies..." | tee -a build-steps.log
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sudo apt-get update | tee -a build-steps.log
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sudo apt-get install -y build-essential cmake ninja-build python3 python3-pip git | tee -a build-steps.log
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echo "Dependencies installed successfully" | tee -a build-steps.log
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- name: Verify build tools
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shell: bash
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run: |
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echo "Verifying build tools..." | tee -a build-steps.log
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echo "CMake version:" | tee -a build-steps.log
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cmake --version | tee -a build-steps.log
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echo "Ninja version:" | tee -a build-steps.log
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ninja --version | tee -a build-steps.log
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echo "Python version:" | tee -a build-steps.log
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python3 --version | tee -a build-steps.log
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echo "GCC version:" | tee -a build-steps.log
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gcc --version | tee -a build-steps.log
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echo "Build tools verified successfully" | tee -a build-steps.log
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- name: Clean any polluted source tree
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shell: bash
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run: |
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echo "Cleaning potentially polluted source tree..." | tee -a build-steps.log
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git clean -fx src || echo "No files to clean in src/" | tee -a build-steps.log
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echo "Source tree cleaned" | tee -a build-steps.log
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- name: Create and configure build directory
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shell: bash
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run: |
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echo "Creating build directory..." | tee -a build-steps.log
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mkdir -p build
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cd build
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echo "Configuring CMake for performance development..." | tee -a ../build-steps.log
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cmake -G "Ninja" \
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-DCMAKE_BUILD_TYPE=RelWithDebInfo \
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-DZ3_ENABLE_TRACING_FOR_NON_DEBUG=TRUE \
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-DZ3_BUILD_LIBZ3_SHARED=FALSE \
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-DZ3_BUILD_TEST_EXECUTABLES=TRUE \
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-DCMAKE_CXX_FLAGS="-fno-omit-frame-pointer" \
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../ | tee -a ../build-steps.log
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echo "CMake configuration completed" | tee -a ../build-steps.log
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- name: Build Z3
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shell: bash
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run: |
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echo "Building Z3..." | tee -a build-steps.log
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cd build
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ninja | tee -a ../build-steps.log
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echo "Z3 build completed" | tee -a ../build-steps.log
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- name: Build test executables
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shell: bash
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run: |
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echo "Building test executables..." | tee -a build-steps.log
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cd build
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ninja test-z3 | tee -a ../build-steps.log
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echo "Test executables built" | tee -a ../build-steps.log
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- name: Verify build outputs
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shell: bash
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run: |
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echo "Verifying build outputs..." | tee -a build-steps.log
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cd build
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ls -la z3 test-z3 libz3.a | tee -a ../build-steps.log
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echo "Z3 executable version:" | tee -a ../build-steps.log
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./z3 --version | tee -a ../build-steps.log
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echo "Build outputs verified successfully" | tee -a ../build-steps.log
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- name: Clone z3test repository for benchmarks
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shell: bash
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run: |
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echo "Cloning z3test repository for benchmarks..." | tee -a build-steps.log
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if [ ! -d "z3test" ]; then
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git clone https://github.com/z3prover/z3test z3test | tee -a build-steps.log
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else
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echo "z3test already exists, updating..." | tee -a build-steps.log
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cd z3test
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git pull | tee -a ../build-steps.log
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cd ..
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fi
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echo "z3test repository ready" | tee -a build-steps.log
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- name: Run quick verification tests
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shell: bash
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run: |
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echo "Running quick verification tests..." | tee -a build-steps.log
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cd build
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echo "Running unit tests (first 10)..." | tee -a ../build-steps.log
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timeout 60s ./test-z3 | head -20 | tee -a ../build-steps.log || echo "Unit tests running (timeout reached)" | tee -a ../build-steps.log
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echo "Testing basic Z3 functionality..." | tee -a ../build-steps.log
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echo "(assert (> x 0))" | ./z3 -in | tee -a ../build-steps.log
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echo "Quick verification tests completed" | tee -a ../build-steps.log
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- name: Set up performance measurement tools
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shell: bash
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run: |
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echo "Setting up performance measurement tools..." | tee -a build-steps.log
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which perf || echo "perf not available" | tee -a build-steps.log
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which valgrind || echo "valgrind not available" | tee -a build-steps.log
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echo "Performance measurement tools setup completed" | tee -a build-steps.log
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- name: Create micro-benchmark template
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shell: bash
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run: |
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echo "Creating micro-benchmark infrastructure..." | tee -a build-steps.log
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mkdir -p perf-bench
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cat > perf-bench/README.md << 'EOF'
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# Z3 Performance Benchmarks
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This directory contains micro-benchmarks for Z3 performance testing.
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## Quick Start
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1. Run unit tests: `cd build && ./test-z3 -a`
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2. Run regression tests: `python z3test/scripts/test_benchmarks.py build/z3 z3test/regressions/smt2-extra`
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3. Basic SMT solving: `echo "(assert (> x 0))" | build/z3 -in`
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## Performance Measurement
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- Use `build/z3 -st input.smt2` to get statistics
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- Use `perf` or `valgrind` for detailed profiling
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- Time measurements: Use `scoped_timer` class in Z3 code
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## Build Commands
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- Clean rebuild: `rm -rf build && mkdir build && cd build && cmake -G "Ninja" -DCMAKE_BUILD_TYPE=RelWithDebInfo ../ && ninja`
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- Build tests only: `ninja test-z3`
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- Build with profiling: `cmake -DCMAKE_CXX_FLAGS="-pg -fno-omit-frame-pointer" ../`
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EOF
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echo "Micro-benchmark infrastructure created" | tee -a build-steps.log
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- name: Display build summary
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shell: bash
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run: |
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echo "=== Z3 Performance Development Environment Ready ===" | tee -a build-steps.log
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echo "Build directory: $(pwd)/build" | tee -a build-steps.log
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echo "Z3 executable: $(pwd)/build/z3" | tee -a build-steps.log
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echo "Test executable: $(pwd)/build/test-z3" | tee -a build-steps.log
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echo "Benchmark repository: $(pwd)/z3test" | tee -a build-steps.log
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echo "Build log: $(pwd)/build-steps.log" | tee -a build-steps.log
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echo "=== Setup Complete ===" | tee -a build-steps.log
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