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- removed insn.fixed

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- added a merge table for the register type merge logic

git-svn-id: https://smali.googlecode.com/svn/trunk@445 55b6fa8a-2a1e-11de-a435-ffa8d773f76a
This commit is contained in:
JesusFreke@JesusFreke.com 2009-09-09 01:43:57 +00:00
parent e6e9569227
commit a3d7d2423d
1 changed files with 12 additions and 36 deletions
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48
dexlib/src/main/java/org/jf/dexlib/Util/DeodexUtil.java
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@ -204,10 +204,9 @@ public class DeodexUtil {
didSomething = false;
somethingLeftToDo = false;
for (insn i: insns) {
if (i.instruction.opcode.odexOnly && !i.fixed) {
if (i.instruction.opcode.odexOnly && i.fixedInstruction == null) {
if (deodexInstruction(i, offset, encodedInstructions)) {
didSomething = true;
i.fixed = true;
} else {
somethingLeftToDo = true;
}
@ -227,7 +226,6 @@ public class DeodexUtil {
for (insn i: insns) {
if (i.instruction.opcode.odexOnly) {
//TODO: could probably get rid of insn.fixed
assert i.fixed;
assert i.fixedInstruction != null;
instructions.add(i.fixedInstruction);
} else {
@ -764,40 +762,18 @@ public class DeodexUtil {
Reference,
Conflicted;
//TODO: make a table lookup for this
private static RegisterType[][] mergeTable =
{
//Unknown Null Nonreference Reference Conflicted
{Unknown, Null, NonReference, Reference, Conflicted}, //Unknown
{Null, Null, NonReference, Reference, Conflicted}, //Null
{NonReference, NonReference, NonReference, Conflicted, Conflicted}, //NonReference
{Reference, Reference, Conflicted, Reference, Conflicted}, //Referenced
{Conflicted, Conflicted, Conflicted, Conflicted, Conflicted}, //Conflicted
};
public static RegisterType mergeRegisterTypes(RegisterType type1, RegisterType type2) {
if (type1 == type2) {
return type1;
}
if (type1 == Conflicted || type2 == Conflicted) {
return Conflicted;
}
if (type1 == Unknown) {
return type2;
}
if (type2 == Unknown) {
return type1;
}
if (type1 == Null) {
if (type2 == Reference || type2 == NonReference) {
return type2;
}
}
if (type2 == Null) {
if (type1 == Reference || type1 == NonReference) {
return type1;
}
}
if ((type1 == Reference && type2 == NonReference) || (type1 == NonReference && type2 == Reference)) {
return Conflicted;
}
assert false;
return null;
return mergeTable[type1.ordinal()][type2.ordinal()];
}
}