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https://github.com/Nexoniarz/Finch.git
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c7ddd4d8b6
boot/ is a second Finch compiler written in Finch (lexer, parser, type checker and an LLVM IR text generator, ~3k lines). Built by the C++ compiler it compiles itself; stage 2 and stage 3 produce byte-identical IR. It covers the core language: functions, structs, arrays, str, pointers, loops and modules (no C imports, sized numbers or defer), copies values like the main compiler and leaves freeing memory to the operating system. tests/boot.sh checks the fixpoint and runs the test programs it supports. Also: shell(cmd) built-in. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
50 lines
1.8 KiB
Shell
Executable file
50 lines
1.8 KiB
Shell
Executable file
#!/usr/bin/env bash
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# The self-hosted compiler (boot/) must
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# 1. build itself: stage1 (built by build/finch) -> stage2 -> stage3, with identical IR
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# 2. give the same output as build/finch on every test in tests/run it supports
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set -u
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cd "$(dirname "$0")/.."
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tmp=$(mktemp -d)
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trap 'rm -rf "$tmp"' EXIT
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build/finch build boot/main.fn -o "$tmp/boot1" || exit 1
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"$tmp/boot1" build boot/main.fn -o "$tmp/boot2" || exit 1
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"$tmp/boot1" ir boot/main.fn > "$tmp/stage2.ll"
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"$tmp/boot2" ir boot/main.fn > "$tmp/stage3.ll"
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if cmp -s "$tmp/stage2.ll" "$tmp/stage3.ll"; then
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echo "bootstrap: stage 2 and stage 3 are identical ($(wc -l < "$tmp/stage3.ll") lines of IR)"
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else
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echo "bootstrap: FAILED, stage 2 and stage 3 differ"
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exit 1
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fi
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pass=0; failed=0; skipped=0
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for f in tests/run/*.fn; do
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grep -q "^fn main" "$f" || continue
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# the bootstrap compiler doesn't do C imports, sized numbers or defer
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# (checked in the test and in the modules it imports)
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files="$f"
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for m in $(sed -n 's/^import \([a-z_]*\)$/\1/p' "$f"); do files="$files tests/run/$m.fn"; done
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if grep -qE '^import "|^link |\b(u8|u16|u32|u64|i8|i16|i32|f32|f64)\b|defer |0x' $files; then
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skipped=$((skipped + 1))
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continue
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fi
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input="${f%.fn}.in"
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[ -f "$input" ] || input=/dev/null
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if ! "$tmp/boot2" build "$f" -o "$tmp/prog" > "$tmp/err" 2>&1; then
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failed=$((failed + 1))
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echo "FAIL (compile) $f"
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head -3 "$tmp/err"
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continue
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fi
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got=$("$tmp/prog" < "$input" 2>&1)
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if [ "$got" == "$(cat "${f%.fn}.out")" ]; then
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pass=$((pass + 1))
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else
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failed=$((failed + 1))
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echo "FAIL (output) $f"
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diff <(echo "$got") "${f%.fn}.out" | head -10
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fi
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done
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echo "self-hosted compiler: $pass passed, $failed failed, $skipped skipped (features it doesn't have)"
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[ $failed -eq 0 ]
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