153 lines
5.4 KiB
Bash
Executable file
153 lines
5.4 KiB
Bash
Executable file
#!/bin/bash
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# Fixpoint test for the Blaise self-hosting check.
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#
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# Uses the most recent release binary as stage-1 (no FPC dependency).
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#
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# Steps:
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# 1. Find stage-1 binary (latest release or explicit $STAGE1).
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# 2. Rebuild + install RTL (cheap when nothing changed).
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# 3. stage-1 -> stage-2 IR.
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# 4. Assemble + link stage-2 binary via QBE + gcc.
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# 5. stage-2 -> stage-3 IR (5-minute timeout).
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# 6. diff stage-2.ssa stage-3.ssa => empty = clean fixpoint.
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#
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# If stage-2 != stage-3 (expected when stage-1 has older codegen),
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# the script automatically builds stage-3, generates stage-4 IR,
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# and checks stage-3 == stage-4 as the true fixpoint.
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set -e
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if [ ! -f "compiler/src/main/pascal/Blaise.pas" ]; then
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echo "Run this script from the project root: ./scripts/fixpoint.sh" >&2
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exit 1
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fi
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# Stage-1 binary: honour $STAGE1, otherwise pick the latest release.
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if [ -n "$STAGE1" ]; then
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STAGE1_BIN="$STAGE1"
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elif [ -d releases ]; then
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LATEST=$(ls -d releases/v* 2>/dev/null | sort -V | tail -1)
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STAGE1_BIN="$LATEST/blaise"
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fi
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if [ ! -x "$STAGE1_BIN" ]; then
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echo "No stage-1 binary found. Set STAGE1=/path/to/blaise or add a release." >&2
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exit 10
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fi
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echo "stage-1: $STAGE1_BIN"
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# The runtime Makefile defaults BLAISE to ../compiler/target/blaise, which may
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# not exist yet — e.g. straight after scripts/rolling-bootstrap.sh, which
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# installs only to releases/ and leaves the live compiler/target/ empty.
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# Drive the runtime build with the stage-1 binary explicitly so fixpoint never
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# depends on a pre-existing compiler/target/blaise. make runs inside runtime/,
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# so BLAISE must be an absolute path.
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ABS_STAGE1=$(readlink -f "$STAGE1_BIN")
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echo "[1/5] rebuild + install runtime (BLAISE=$ABS_STAGE1)"
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( cd runtime && make clean > /tmp/fp_rtl.log 2>&1 \
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&& make BLAISE="$ABS_STAGE1" >> /tmp/fp_rtl.log 2>&1 \
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&& make BLAISE="$ABS_STAGE1" install >> /tmp/fp_rtl.log 2>&1 ) || {
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if [ -f compiler/target/blaise_rtl.a ]; then
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echo " stage-1 too old for runtime; using existing blaise_rtl.a"
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else
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echo "RUNTIME_FAIL"; tail -5 /tmp/fp_rtl.log; exit 11;
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fi
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}
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# Resolve the RTL archive for the link steps below. `make install` copies it
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# to compiler/target/, but fall back to the runtime build dir so the link
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# never fails on a tree where compiler/target/ was not populated.
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if [ -f compiler/target/blaise_rtl.a ]; then
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RTL_ARCHIVE=compiler/target/blaise_rtl.a
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elif [ -f runtime/target/blaise_rtl.a ]; then
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RTL_ARCHIVE=runtime/target/blaise_rtl.a
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else
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echo "RUNTIME_FAIL: blaise_rtl.a not found after runtime build"; exit 11
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fi
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echo "[2/5] stage-1 -> stage-2 IR"
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"$STAGE1_BIN" --source compiler/src/main/pascal/Blaise.pas \
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--unit-path compiler/src/main/pascal --unit-path runtime/src/main/pascal --unit-path stdlib/src/main/pascal \
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--emit-ir > /tmp/fp_stage2.ssa 2>/tmp/fp_stage2.err
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if [ ! -s /tmp/fp_stage2.ssa ] || head -1 /tmp/fp_stage2.ssa | grep -qi 'error\|exception'; then
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echo "STAGE2_IR_FAIL"
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head -3 /tmp/fp_stage2.ssa
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head -3 /tmp/fp_stage2.err
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exit 1
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fi
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echo " stage-2 IR: $(wc -l < /tmp/fp_stage2.ssa) lines"
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echo "[3/5] assemble + link stage-2 binary"
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vendor/qbe/qbe -o /tmp/fp_stage2.s /tmp/fp_stage2.ssa 2>/tmp/fp_qbe.err || {
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echo "QBE_FAIL"; cat /tmp/fp_qbe.err; exit 2;
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}
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gcc -o /tmp/fp_blaise2 /tmp/fp_stage2.s "$RTL_ARCHIVE" 2>/tmp/fp_gcc.err || {
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echo "GCC_FAIL"; cat /tmp/fp_gcc.err; exit 3;
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}
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echo "[4/5] stage-2 -> stage-3 IR (5min timeout)"
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timeout 300 /tmp/fp_blaise2 --source compiler/src/main/pascal/Blaise.pas \
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--unit-path compiler/src/main/pascal --unit-path runtime/src/main/pascal --unit-path stdlib/src/main/pascal \
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--emit-ir > /tmp/fp_stage3.ssa 2>/tmp/fp_stage3.err
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RC=$?
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if [ $RC -eq 124 ]; then
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echo "STAGE3_TIMEOUT"
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exit 4
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elif [ $RC -eq 139 ]; then
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echo "STAGE3_SEGFAULT"
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exit 4
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elif [ $RC -ne 0 ]; then
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echo "STAGE3_FAIL rc=$RC"
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head -3 /tmp/fp_stage3.err
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exit 5
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fi
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echo " stage-3 IR: $(wc -l < /tmp/fp_stage3.ssa) lines"
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echo "[5/5] compare stage-2 vs stage-3"
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DIFFLINES=$(diff /tmp/fp_stage2.ssa /tmp/fp_stage3.ssa | wc -l)
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if [ $DIFFLINES -eq 0 ]; then
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echo "FIXPOINT_OK"
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exit 0
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fi
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echo "stage-2 != stage-3 ($DIFFLINES diff lines) — bootstrap gap from older stage-1"
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echo " extending to stage-4 for true fixpoint check..."
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echo "[+1] assemble + link stage-3 binary"
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vendor/qbe/qbe -o /tmp/fp_stage3.s /tmp/fp_stage3.ssa 2>/tmp/fp_qbe3.err || {
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echo "QBE3_FAIL"; cat /tmp/fp_qbe3.err; exit 2;
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}
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gcc -o /tmp/fp_blaise3 /tmp/fp_stage3.s "$RTL_ARCHIVE" 2>/tmp/fp_gcc3.err || {
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echo "GCC3_FAIL"; cat /tmp/fp_gcc3.err; exit 3;
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}
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echo "[+2] stage-3 -> stage-4 IR (5min timeout)"
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timeout 300 /tmp/fp_blaise3 --source compiler/src/main/pascal/Blaise.pas \
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--unit-path compiler/src/main/pascal --unit-path runtime/src/main/pascal --unit-path stdlib/src/main/pascal \
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--emit-ir > /tmp/fp_stage4.ssa 2>/tmp/fp_stage4.err
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RC=$?
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if [ $RC -eq 124 ]; then
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echo "STAGE4_TIMEOUT"
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exit 4
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elif [ $RC -eq 139 ]; then
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echo "STAGE4_SEGFAULT"
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exit 4
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elif [ $RC -ne 0 ]; then
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echo "STAGE4_FAIL rc=$RC"
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head -3 /tmp/fp_stage4.err
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exit 5
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fi
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echo " stage-4 IR: $(wc -l < /tmp/fp_stage4.ssa) lines"
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echo "[+3] compare stage-3 vs stage-4"
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DIFFLINES=$(diff /tmp/fp_stage3.ssa /tmp/fp_stage4.ssa | wc -l)
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if [ $DIFFLINES -eq 0 ]; then
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echo "FIXPOINT_OK (achieved at stage-3/stage-4)"
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exit 0
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else
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echo "FIXPOINT_DIFF lines=$DIFFLINES"
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diff /tmp/fp_stage3.ssa /tmp/fp_stage4.ssa | head -20
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exit 6
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fi
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