static bool genConversion(CompilationUnit *cUnit, MIR *mir)
{
OpCode opCode = mir->dalvikInsn.opCode;
int vSrc1Dest = mir->dalvikInsn.vA;
int vSrc2 = mir->dalvikInsn.vB;
int op = THUMB_BKPT;
bool longSrc = false;
bool longDest = false;
int srcReg;
int tgtReg;
switch (opCode) {
case OP_INT_TO_FLOAT:
longSrc = false;
longDest = false;
op = THUMB2_VCVTIF;
break;
case OP_FLOAT_TO_INT:
longSrc = false;
longDest = false;
op = THUMB2_VCVTFI;
break;
case OP_DOUBLE_TO_FLOAT:
longSrc = true;
longDest = false;
op = THUMB2_VCVTDF;
break;
case OP_FLOAT_TO_DOUBLE:
longSrc = false;
longDest = true;
op = THUMB2_VCVTFD;
break;
case OP_INT_TO_DOUBLE:
longSrc = false;
longDest = true;
op = THUMB2_VCVTID;
break;
case OP_DOUBLE_TO_INT:
longSrc = true;
longDest = false;
op = THUMB2_VCVTDI;
break;
case OP_FLOAT_TO_LONG:
case OP_LONG_TO_FLOAT:
case OP_DOUBLE_TO_LONG:
case OP_LONG_TO_DOUBLE:
return genConversionPortable(cUnit, mir);
default:
return true;
}
if (longSrc) {
srcReg = dr1;
loadDouble(cUnit, vSrc2, srcReg);
} else {
srcReg = fr2;
loadFloat(cUnit, vSrc2, srcReg);
}
if (longDest) {
newLIR2(cUnit, op, dr0, srcReg);
storeDouble(cUnit, dr0, vSrc1Dest, 0);
} else {
newLIR2(cUnit, op, fr0, srcReg);
storeFloat(cUnit, fr0, vSrc1Dest, 0);
}
return false;
}
static bool genConversion(CompilationUnit *cUnit, MIR *mir)
{
Opcode opcode = mir->dalvikInsn.opcode;
int op = kThumbBkpt;
bool longSrc = false;
bool longDest = false;
int srcReg;
RegLocation rlSrc;
RegLocation rlDest;
RegLocation rlResult;
switch (opcode) {
case OP_INT_TO_FLOAT:
longSrc = false;
longDest = false;
op = kThumb2VcvtIF;
break;
case OP_FLOAT_TO_INT:
longSrc = false;
longDest = false;
op = kThumb2VcvtFI;
break;
case OP_DOUBLE_TO_FLOAT:
longSrc = true;
longDest = false;
op = kThumb2VcvtDF;
break;
case OP_FLOAT_TO_DOUBLE:
longSrc = false;
longDest = true;
op = kThumb2VcvtFd;
break;
case OP_INT_TO_DOUBLE:
longSrc = false;
longDest = true;
op = kThumb2VcvtID;
break;
case OP_DOUBLE_TO_INT:
longSrc = true;
longDest = false;
op = kThumb2VcvtDI;
break;
case OP_LONG_TO_DOUBLE:
case OP_FLOAT_TO_LONG:
case OP_LONG_TO_FLOAT:
case OP_DOUBLE_TO_LONG:
return genConversionPortable(cUnit, mir);
default:
return true;
}
if (longSrc) {
rlSrc = dvmCompilerGetSrcWide(cUnit, mir, 0, 1);
rlSrc = loadValueWide(cUnit, rlSrc, kFPReg);
srcReg = S2D(rlSrc.lowReg, rlSrc.highReg);
} else {
rlSrc = dvmCompilerGetSrc(cUnit, mir, 0);
rlSrc = loadValue(cUnit, rlSrc, kFPReg);
srcReg = rlSrc.lowReg;
}
if (longDest) {
rlDest = dvmCompilerGetDestWide(cUnit, mir, 0, 1);
rlResult = dvmCompilerEvalLoc(cUnit, rlDest, kFPReg, true);
newLIR2(cUnit, (ArmOpcode)op, S2D(rlResult.lowReg, rlResult.highReg),
srcReg);
storeValueWide(cUnit, rlDest, rlResult);
} else {
rlDest = dvmCompilerGetDest(cUnit, mir, 0);
rlResult = dvmCompilerEvalLoc(cUnit, rlDest, kFPReg, true);
newLIR2(cUnit, (ArmOpcode)op, rlResult.lowReg, srcReg);
storeValue(cUnit, rlDest, rlResult);
}
return false;
}
