diff options
Diffstat (limited to 'src/compiler/scala/tools/nsc/backend/jvm/opt/InstructionResultSize.scala')
| -rw-r--r-- | src/compiler/scala/tools/nsc/backend/jvm/opt/InstructionResultSize.scala | 240 |
1 files changed, 0 insertions, 240 deletions
diff --git a/src/compiler/scala/tools/nsc/backend/jvm/opt/InstructionResultSize.scala b/src/compiler/scala/tools/nsc/backend/jvm/opt/InstructionResultSize.scala deleted file mode 100644 index 8d744f6d13..0000000000 --- a/src/compiler/scala/tools/nsc/backend/jvm/opt/InstructionResultSize.scala +++ /dev/null @@ -1,240 +0,0 @@ -package scala.tools.nsc.backend.jvm.opt - -import scala.annotation.switch -import scala.tools.asm.{Handle, Type, Opcodes} -import scala.tools.asm.tree._ - -object InstructionResultSize { - import Opcodes._ - def apply(instruction: AbstractInsnNode): Int = (instruction.getOpcode: @switch) match { - // The order of opcodes is (almost) the same as in Opcodes.java - case ACONST_NULL => 1 - - case ICONST_M1 | - ICONST_0 | - ICONST_1 | - ICONST_2 | - ICONST_3 | - ICONST_4 | - ICONST_5 => 1 - - case LCONST_0 | - LCONST_1 => 2 - - case FCONST_0 | - FCONST_1 | - FCONST_2 => 1 - - case DCONST_0 | - DCONST_1 => 2 - - case BIPUSH | - SIPUSH => 1 - - case LDC => - instruction.asInstanceOf[LdcInsnNode].cst match { - case _: java.lang.Integer | - _: java.lang.Float | - _: String | - _: Type | - _: Handle => 1 - - case _: java.lang.Long | - _: java.lang.Double => 2 - } - - case ILOAD | - FLOAD | - ALOAD => 1 - - case LLOAD | - DLOAD => 2 - - case IALOAD | - FALOAD | - AALOAD | - BALOAD | - CALOAD | - SALOAD => 1 - - case LALOAD | - DALOAD => 2 - - case ISTORE | - LSTORE | - FSTORE | - DSTORE | - ASTORE => 0 - - case IASTORE | - LASTORE | - FASTORE | - DASTORE | - AASTORE | - BASTORE | - CASTORE | - SASTORE => 0 - - case POP | - POP2 => 0 - - case DUP | - DUP_X1 | - DUP_X2 | - DUP2 | - DUP2_X1 | - DUP2_X2 | - SWAP => throw new IllegalArgumentException("Can't compute the size of DUP/SWAP without knowing what's on stack top") - - case IADD | - FADD => 1 - - case LADD | - DADD => 2 - - case ISUB | - FSUB => 1 - - case LSUB | - DSUB => 2 - - case IMUL | - FMUL => 1 - - case LMUL | - DMUL => 2 - - case IDIV | - FDIV => 1 - - case LDIV | - DDIV => 2 - - case IREM | - FREM => 1 - - case LREM | - DREM => 2 - - case INEG | - FNEG => 1 - - case LNEG | - DNEG => 2 - - case ISHL | - ISHR => 1 - - case LSHL | - LSHR => 2 - - case IUSHR => 1 - - case LUSHR => 2 - - case IAND | - IOR | - IXOR => 1 - - case LAND | - LOR | - LXOR => 2 - - case IINC => 1 - - case I2F | - L2I | - L2F | - F2I | - D2I | - D2F | - I2B | - I2C | - I2S => 1 - - case I2L | - I2D | - L2D | - F2L | - F2D | - D2L => 2 - - case LCMP | - FCMPL | - FCMPG | - DCMPL | - DCMPG => 1 - - case IFEQ | - IFNE | - IFLT | - IFGE | - IFGT | - IFLE => 0 - - case IF_ICMPEQ | - IF_ICMPNE | - IF_ICMPLT | - IF_ICMPGE | - IF_ICMPGT | - IF_ICMPLE | - IF_ACMPEQ | - IF_ACMPNE => 0 - - case GOTO => 0 - - case JSR => throw new IllegalArgumentException("Subroutines are not supported.") - - case RET => 0 - - case TABLESWITCH | - LOOKUPSWITCH => 0 - - case IRETURN | - FRETURN | - ARETURN => 1 - - case LRETURN | - DRETURN => 2 - - case RETURN => 0 - - case GETSTATIC => Type.getType(instruction.asInstanceOf[FieldInsnNode].desc).getSize - - case PUTSTATIC => 0 - - case GETFIELD => Type.getType(instruction.asInstanceOf[FieldInsnNode].desc).getSize - - case PUTFIELD => 0 - - case INVOKEVIRTUAL | - INVOKESPECIAL | - INVOKESTATIC | - INVOKEINTERFACE => - val desc = instruction.asInstanceOf[MethodInsnNode].desc - Type.getReturnType(desc).getSize - - case INVOKEDYNAMIC => - val desc = instruction.asInstanceOf[InvokeDynamicInsnNode].desc - Type.getReturnType(desc).getSize - - case NEW => 1 - - case NEWARRAY | - ANEWARRAY | - ARRAYLENGTH => 1 - - case ATHROW => 0 - - case CHECKCAST | - INSTANCEOF => 1 - - case MONITORENTER | - MONITOREXIT => 0 - - case MULTIANEWARRAY => 1 - - case IFNULL | - IFNONNULL => 0 - } -} |