Examples with InstructionCounter org.graalvm.compiler.asm.Assembler.InstructionCounter used on opensource projects

Example 1 with InstructionCounter

use of org.graalvm.compiler.asm.Assembler.InstructionCounter in project graal by oracle.

the class HotSpotInstructionProfiling method countInstructions.

/**
 * After assembly the {@link HotSpotBackend#profileInstructions(LIR, CompilationResultBuilder)}
 * calls this method for patching the instruction counts into the counter increment code.
 */
public static void countInstructions(LIR lir, Assembler asm) {
    InstructionCounterOp lastOp = null;
    InstructionCounter counter = asm.getInstructionCounter();
    for (AbstractBlockBase<?> block : lir.codeEmittingOrder()) {
        if (block == null) {
            continue;
        }
        for (LIRInstruction inst : lir.getLIRforBlock(block)) {
            if (inst instanceof InstructionCounterOp) {
                InstructionCounterOp currentOp = (InstructionCounterOp) inst;
                if (lastOp != null) {
                    int beginPc = lastOp.countOffsetEnd;
                    int endPc = currentOp.countOffsetBegin;
                    int[] instructionCounts = counter.countInstructions(lastOp.instructionsToProfile, beginPc, endPc);
                    lastOp.delegate.patchCounterIncrement(asm, instructionCounts);
                }
                lastOp = ((InstructionCounterOp) inst);
            }
        }
    }
    if (lastOp != null) {
        assert lastOp.countOffsetBegin < asm.position();
        int beginPc = lastOp.countOffsetBegin;
        int endPc = asm.position();
        int[] instructionCounts = counter.countInstructions(lastOp.instructionsToProfile, beginPc, endPc);
        lastOp.delegate.patchCounterIncrement(asm, instructionCounts);
    }
}