Examples with Site jdk.vm.ci.code.site.Site used on opensource projects

Example 1 with Site

use of jdk.vm.ci.code.site.Site in project graal by oracle.

the class HotSpotCompiledCodeBuilder method createCompiledCode.

public static HotSpotCompiledCode createCompiledCode(CodeCacheProvider codeCache, ResolvedJavaMethod method, HotSpotCompilationRequest compRequest, CompilationResult compResult) {
    String name = compResult.getName();
    byte[] targetCode = compResult.getTargetCode();
    int targetCodeSize = compResult.getTargetCodeSize();
    Site[] sites = getSortedSites(codeCache, compResult);
    Assumption[] assumptions = compResult.getAssumptions();
    ResolvedJavaMethod[] methods = compResult.getMethods();
    List<CodeAnnotation> annotations = compResult.getAnnotations();
    Comment[] comments = new Comment[annotations.size()];
    if (!annotations.isEmpty()) {
        for (int i = 0; i < comments.length; i++) {
            CodeAnnotation annotation = annotations.get(i);
            String text;
            if (annotation instanceof CodeComment) {
                CodeComment codeComment = (CodeComment) annotation;
                text = codeComment.value;
            } else if (annotation instanceof JumpTable) {
                JumpTable jumpTable = (JumpTable) annotation;
                text = "JumpTable [" + jumpTable.low + " .. " + jumpTable.high + "]";
            } else {
                text = annotation.toString();
            }
            comments[i] = new Comment(annotation.position, text);
        }
    }
    DataSection data = compResult.getDataSection();
    byte[] dataSection = new byte[data.getSectionSize()];
    ByteBuffer buffer = ByteBuffer.wrap(dataSection).order(ByteOrder.nativeOrder());
    Builder<DataPatch> patchBuilder = Stream.builder();
    data.buildDataSection(buffer, (position, vmConstant) -> {
        patchBuilder.accept(new DataPatch(position, new ConstantReference(vmConstant)));
    });
    int dataSectionAlignment = data.getSectionAlignment();
    DataPatch[] dataSectionPatches = patchBuilder.build().toArray(len -> new DataPatch[len]);
    int totalFrameSize = compResult.getTotalFrameSize();
    StackSlot customStackArea = compResult.getCustomStackArea();
    boolean isImmutablePIC = compResult.isImmutablePIC();
    if (method instanceof HotSpotResolvedJavaMethod) {
        HotSpotResolvedJavaMethod hsMethod = (HotSpotResolvedJavaMethod) method;
        int entryBCI = compResult.getEntryBCI();
        boolean hasUnsafeAccess = compResult.hasUnsafeAccess();
        int id;
        long jvmciEnv;
        if (compRequest != null) {
            id = compRequest.getId();
            jvmciEnv = compRequest.getJvmciEnv();
        } else {
            id = hsMethod.allocateCompileId(entryBCI);
            jvmciEnv = 0L;
        }
        return new HotSpotCompiledNmethod(name, targetCode, targetCodeSize, sites, assumptions, methods, comments, dataSection, dataSectionAlignment, dataSectionPatches, isImmutablePIC, totalFrameSize, customStackArea, hsMethod, entryBCI, id, jvmciEnv, hasUnsafeAccess);
    } else {
        return new HotSpotCompiledCode(name, targetCode, targetCodeSize, sites, assumptions, methods, comments, dataSection, dataSectionAlignment, dataSectionPatches, isImmutablePIC, totalFrameSize, customStackArea);
    }
}

Example 2 with Site

use of jdk.vm.ci.code.site.Site in project graal by oracle.

the class HotSpotCompiledCodeBuilder method getSortedSites.

/**
 * HotSpot expects sites to be presented in ascending order of PC (see
 * {@code DebugInformationRecorder::add_new_pc_offset}). In addition, it expects
 * {@link Infopoint} PCs to be unique.
 */
private static Site[] getSortedSites(CodeCacheProvider codeCache, CompilationResult target) {
    List<Site> sites = new ArrayList<>(target.getExceptionHandlers().size() + target.getInfopoints().size() + target.getDataPatches().size() + target.getMarks().size() + target.getSourceMappings().size());
    sites.addAll(target.getExceptionHandlers());
    sites.addAll(target.getInfopoints());
    sites.addAll(target.getDataPatches());
    sites.addAll(target.getMarks());
    if (codeCache.shouldDebugNonSafepoints()) {
        /*
             * Translate the source mapping into appropriate info points. In HotSpot only one
             * position can really be represented and recording the end PC seems to give the best
             * results and corresponds with what C1 and C2 do. HotSpot doesn't like to see these
             * unless -XX:+DebugNonSafepoints is enabled, so don't emit them in that case.
             */
        List<Site> sourcePositionSites = new ArrayList<>();
        for (SourceMapping source : target.getSourceMappings()) {
            NodeSourcePosition sourcePosition = source.getSourcePosition();
            if (sourcePosition.isPlaceholder() || sourcePosition.isSubstitution()) {
                // HotSpot doesn't understand any of the special positions so just drop them.
                continue;
            }
            assert sourcePosition.verify();
            sourcePosition = sourcePosition.trim();
            /*
                 * Don't add BYTECODE_POSITION info points that would potentially create conflicts.
                 * Under certain conditions the site's pc is not the pc that gets recorded by
                 * HotSpot (see @code {CodeInstaller::site_Call}). So, avoid adding any source
                 * positions that can potentially map to the same pc. To do that make sure that the
                 * source mapping doesn't contain a pc of any important Site.
                 */
            if (sourcePosition != null && !anyMatch(sites, s -> source.contains(s.pcOffset))) {
                sourcePositionSites.add(new Infopoint(source.getEndOffset(), new DebugInfo(sourcePosition), InfopointReason.BYTECODE_POSITION));
            }
        }
        sites.addAll(sourcePositionSites);
    }
    SiteComparator c = new SiteComparator();
    Collections.sort(sites, c);
    if (c.sawCollidingInfopoints) {
        Infopoint lastInfopoint = null;
        List<Site> copy = new ArrayList<>(sites.size());
        for (Site site : sites) {
            if (site instanceof Infopoint) {
                Infopoint info = (Infopoint) site;
                if (lastInfopoint == null || lastInfopoint.pcOffset != info.pcOffset) {
                    lastInfopoint = info;
                    copy.add(info);
                } else {
                    // Omit this colliding infopoint
                    assert lastInfopoint.reason.compareTo(info.reason) <= 0;
                }
            } else {
                copy.add(site);
            }
        }
        sites = copy;
    }
    return sites.toArray(new Site[sites.size()]);
}