src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/stackslotalloc/SimpleStackSlotAllocator.java
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src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/stackslotalloc/SimpleStackSlotAllocator.java

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  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.lir.stackslotalloc;
  24 
  25 import static org.graalvm.compiler.lir.LIRValueUtil.asVirtualStackSlot;
  26 import static org.graalvm.compiler.lir.LIRValueUtil.isVirtualStackSlot;
  27 import static org.graalvm.compiler.lir.stackslotalloc.StackSlotAllocatorUtil.allocatedFramesize;
  28 import static org.graalvm.compiler.lir.stackslotalloc.StackSlotAllocatorUtil.allocatedSlots;
  29 import static org.graalvm.compiler.lir.stackslotalloc.StackSlotAllocatorUtil.virtualFramesize;
  30 
  31 import org.graalvm.compiler.core.common.cfg.AbstractBlockBase;
  32 import org.graalvm.compiler.debug.Debug;
  33 import org.graalvm.compiler.debug.Debug.Scope;
  34 import org.graalvm.compiler.debug.Indent;
  35 import org.graalvm.compiler.debug.GraalError;

  36 import org.graalvm.compiler.lir.LIRInstruction;
  37 import org.graalvm.compiler.lir.ValueProcedure;
  38 import org.graalvm.compiler.lir.VirtualStackSlot;
  39 import org.graalvm.compiler.lir.framemap.FrameMapBuilderTool;
  40 import org.graalvm.compiler.lir.framemap.SimpleVirtualStackSlot;
  41 import org.graalvm.compiler.lir.framemap.VirtualStackSlotRange;
  42 import org.graalvm.compiler.lir.gen.LIRGenerationResult;
  43 import org.graalvm.compiler.lir.phases.AllocationPhase;
  44 
  45 import jdk.vm.ci.code.StackSlot;
  46 import jdk.vm.ci.code.TargetDescription;
  47 
  48 public class SimpleStackSlotAllocator extends AllocationPhase {
  49 
  50     @Override
  51     protected void run(TargetDescription target, LIRGenerationResult lirGenRes, AllocationContext context) {
  52         allocateStackSlots((FrameMapBuilderTool) lirGenRes.getFrameMapBuilder(), lirGenRes);
  53         lirGenRes.buildFrameMap();
  54     }
  55 
  56     public void allocateStackSlots(FrameMapBuilderTool builder, LIRGenerationResult res) {

  57         StackSlot[] mapping = new StackSlot[builder.getNumberOfStackSlots()];
  58         long currentFrameSize = allocatedFramesize.isEnabled() ? builder.getFrameMap().currentFrameSize() : 0;

  59         for (VirtualStackSlot virtualSlot : builder.getStackSlots()) {
  60             final StackSlot slot;
  61             if (virtualSlot instanceof SimpleVirtualStackSlot) {
  62                 slot = mapSimpleVirtualStackSlot(builder, (SimpleVirtualStackSlot) virtualSlot);
  63                 virtualFramesize.add(builder.getFrameMap().spillSlotSize(virtualSlot.getValueKind()));
  64             } else if (virtualSlot instanceof VirtualStackSlotRange) {
  65                 VirtualStackSlotRange slotRange = (VirtualStackSlotRange) virtualSlot;
  66                 slot = mapVirtualStackSlotRange(builder, slotRange);
  67                 virtualFramesize.add(builder.getFrameMap().spillSlotRangeSize(slotRange.getSlots()));
  68             } else {
  69                 throw GraalError.shouldNotReachHere("Unknown VirtualStackSlot: " + virtualSlot);
  70             }
  71             allocatedSlots.increment();
  72             mapping[virtualSlot.getId()] = slot;
  73         }
  74         updateLIR(res, mapping);
  75         if (allocatedFramesize.isEnabled()) {
  76             allocatedFramesize.add(builder.getFrameMap().currentFrameSize() - currentFrameSize);
  77         }
  78     }
  79 
  80     @SuppressWarnings("try")
  81     protected void updateLIR(LIRGenerationResult res, StackSlot[] mapping) {
  82         try (Scope scope = Debug.scope("StackSlotMappingLIR")) {

  83             ValueProcedure updateProc = (value, mode, flags) -> {
  84                 if (isVirtualStackSlot(value)) {
  85                     StackSlot stackSlot = mapping[asVirtualStackSlot(value).getId()];
  86                     Debug.log("map %s -> %s", value, stackSlot);
  87                     return stackSlot;
  88                 }
  89                 return value;
  90             };
  91             for (AbstractBlockBase<?> block : res.getLIR().getControlFlowGraph().getBlocks()) {
  92                 try (Indent indent0 = Debug.logAndIndent("block: %s", block)) {
  93                     for (LIRInstruction inst : res.getLIR().getLIRforBlock(block)) {
  94                         try (Indent indent1 = Debug.logAndIndent("Inst: %d: %s", inst.id(), inst)) {
  95                             inst.forEachAlive(updateProc);
  96                             inst.forEachInput(updateProc);
  97                             inst.forEachOutput(updateProc);
  98                             inst.forEachTemp(updateProc);
  99                             inst.forEachState(updateProc);
 100                         }
 101                     }
 102                 }
 103             }
 104         }
 105     }
 106 
 107     protected StackSlot mapSimpleVirtualStackSlot(FrameMapBuilderTool builder, SimpleVirtualStackSlot virtualStackSlot) {
 108         return builder.getFrameMap().allocateSpillSlot(virtualStackSlot.getValueKind());
 109     }
 110 
 111     protected StackSlot mapVirtualStackSlotRange(FrameMapBuilderTool builder, VirtualStackSlotRange virtualStackSlot) {
 112         return builder.getFrameMap().allocateStackSlots(virtualStackSlot.getSlots(), virtualStackSlot.getObjects());
 113     }
 114 }


  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package org.graalvm.compiler.lir.stackslotalloc;
  24 
  25 import static org.graalvm.compiler.lir.LIRValueUtil.asVirtualStackSlot;
  26 import static org.graalvm.compiler.lir.LIRValueUtil.isVirtualStackSlot;
  27 import static org.graalvm.compiler.lir.stackslotalloc.StackSlotAllocatorUtil.allocatedFramesize;
  28 import static org.graalvm.compiler.lir.stackslotalloc.StackSlotAllocatorUtil.allocatedSlots;
  29 import static org.graalvm.compiler.lir.stackslotalloc.StackSlotAllocatorUtil.virtualFramesize;
  30 
  31 import org.graalvm.compiler.core.common.cfg.AbstractBlockBase;
  32 import org.graalvm.compiler.debug.DebugContext;


  33 import org.graalvm.compiler.debug.GraalError;
  34 import org.graalvm.compiler.debug.Indent;
  35 import org.graalvm.compiler.lir.LIRInstruction;
  36 import org.graalvm.compiler.lir.ValueProcedure;
  37 import org.graalvm.compiler.lir.VirtualStackSlot;
  38 import org.graalvm.compiler.lir.framemap.FrameMapBuilderTool;
  39 import org.graalvm.compiler.lir.framemap.SimpleVirtualStackSlot;
  40 import org.graalvm.compiler.lir.framemap.VirtualStackSlotRange;
  41 import org.graalvm.compiler.lir.gen.LIRGenerationResult;
  42 import org.graalvm.compiler.lir.phases.AllocationPhase;
  43 
  44 import jdk.vm.ci.code.StackSlot;
  45 import jdk.vm.ci.code.TargetDescription;
  46 
  47 public class SimpleStackSlotAllocator extends AllocationPhase {
  48 
  49     @Override
  50     protected void run(TargetDescription target, LIRGenerationResult lirGenRes, AllocationContext context) {
  51         allocateStackSlots((FrameMapBuilderTool) lirGenRes.getFrameMapBuilder(), lirGenRes);
  52         lirGenRes.buildFrameMap();
  53     }
  54 
  55     public void allocateStackSlots(FrameMapBuilderTool builder, LIRGenerationResult res) {
  56         DebugContext debug = res.getLIR().getDebug();
  57         StackSlot[] mapping = new StackSlot[builder.getNumberOfStackSlots()];
  58         boolean allocatedFramesizeEnabled = allocatedFramesize.isEnabled(debug);
  59         long currentFrameSize = allocatedFramesizeEnabled ? builder.getFrameMap().currentFrameSize() : 0;
  60         for (VirtualStackSlot virtualSlot : builder.getStackSlots()) {
  61             final StackSlot slot;
  62             if (virtualSlot instanceof SimpleVirtualStackSlot) {
  63                 slot = mapSimpleVirtualStackSlot(builder, (SimpleVirtualStackSlot) virtualSlot);
  64                 virtualFramesize.add(debug, builder.getFrameMap().spillSlotSize(virtualSlot.getValueKind()));
  65             } else if (virtualSlot instanceof VirtualStackSlotRange) {
  66                 VirtualStackSlotRange slotRange = (VirtualStackSlotRange) virtualSlot;
  67                 slot = mapVirtualStackSlotRange(builder, slotRange);
  68                 virtualFramesize.add(debug, builder.getFrameMap().spillSlotRangeSize(slotRange.getSlots()));
  69             } else {
  70                 throw GraalError.shouldNotReachHere("Unknown VirtualStackSlot: " + virtualSlot);
  71             }
  72             allocatedSlots.increment(debug);
  73             mapping[virtualSlot.getId()] = slot;
  74         }
  75         updateLIR(res, mapping);
  76         if (allocatedFramesizeEnabled) {
  77             allocatedFramesize.add(debug, builder.getFrameMap().currentFrameSize() - currentFrameSize);
  78         }
  79     }
  80 
  81     @SuppressWarnings("try")
  82     protected void updateLIR(LIRGenerationResult res, StackSlot[] mapping) {
  83         DebugContext debug = res.getLIR().getDebug();
  84         try (DebugContext.Scope scope = debug.scope("StackSlotMappingLIR")) {
  85             ValueProcedure updateProc = (value, mode, flags) -> {
  86                 if (isVirtualStackSlot(value)) {
  87                     StackSlot stackSlot = mapping[asVirtualStackSlot(value).getId()];
  88                     debug.log("map %s -> %s", value, stackSlot);
  89                     return stackSlot;
  90                 }
  91                 return value;
  92             };
  93             for (AbstractBlockBase<?> block : res.getLIR().getControlFlowGraph().getBlocks()) {
  94                 try (Indent indent0 = debug.logAndIndent("block: %s", block)) {
  95                     for (LIRInstruction inst : res.getLIR().getLIRforBlock(block)) {
  96                         try (Indent indent1 = debug.logAndIndent("Inst: %d: %s", inst.id(), inst)) {
  97                             inst.forEachAlive(updateProc);
  98                             inst.forEachInput(updateProc);
  99                             inst.forEachOutput(updateProc);
 100                             inst.forEachTemp(updateProc);
 101                             inst.forEachState(updateProc);
 102                         }
 103                     }
 104                 }
 105             }
 106         }
 107     }
 108 
 109     protected StackSlot mapSimpleVirtualStackSlot(FrameMapBuilderTool builder, SimpleVirtualStackSlot virtualStackSlot) {
 110         return builder.getFrameMap().allocateSpillSlot(virtualStackSlot.getValueKind());
 111     }
 112 
 113     protected StackSlot mapVirtualStackSlotRange(FrameMapBuilderTool builder, VirtualStackSlotRange virtualStackSlot) {
 114         return builder.getFrameMap().allocateStackSlots(virtualStackSlot.getSlots(), virtualStackSlot.getObjects());
 115     }
 116 }
src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.lir/src/org/graalvm/compiler/lir/stackslotalloc/SimpleStackSlotAllocator.java
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