/*
* Similar to loadValueDirect, but clobbers and allocates the target
* registers. Should be used when loading to a fixed registers (for example,
* loading arguments to an out of line call.
*/
static void loadValueDirectWideFixed(CompilationUnit *cUnit, RegLocation rlSrc,
int regLo, int regHi)
{
dvmCompilerClobber(cUnit, regLo);
dvmCompilerClobber(cUnit, regHi);
dvmCompilerMarkInUse(cUnit, regLo);
dvmCompilerMarkInUse(cUnit, regHi);
loadValueDirectWide(cUnit, rlSrc, regLo, regHi);
}
extern RegLocation dvmCompilerGetReturnWide(CompilationUnit *cUnit)
{
RegLocation res = LOC_C_RETURN_WIDE;
dvmCompilerClobber(cUnit, r0);
dvmCompilerClobber(cUnit, r1);
dvmCompilerMarkInUse(cUnit, r0);
dvmCompilerMarkInUse(cUnit, r1);
dvmCompilerMarkPair(cUnit, res.lowReg, res.highReg);
return res;
}
/*
* Load a class pointer value into a fixed or temp register. Target
* register is clobbered, and marked inUse.
*/
static ArmLIR *loadClassPointer(CompilationUnit *cUnit, int rDest, int value)
{
ArmLIR *res;
cUnit->hasClassLiterals = true;
if (dvmCompilerIsTemp(cUnit, rDest)) {
dvmCompilerClobber(cUnit, rDest);
dvmCompilerMarkInUse(cUnit, rDest);
}
ArmLIR *dataTarget = scanLiteralPool(cUnit->classPointerList, value, 0);
if (dataTarget == NULL) {
dataTarget = addWordData(cUnit, &cUnit->classPointerList, value);
/* Counts the number of class pointers in this translation */
cUnit->numClassPointers++;
}
ArmLIR *loadPcRel = (ArmLIR *) dvmCompilerNew(sizeof(ArmLIR), true);
loadPcRel->opcode = kThumbLdrPcRel;
loadPcRel->generic.target = (LIR *) dataTarget;
loadPcRel->operands[0] = rDest;
setupResourceMasks(loadPcRel);
setMemRefType(loadPcRel, true, kLiteral);
loadPcRel->aliasInfo = dataTarget->operands[0];
res = loadPcRel;
dvmCompilerAppendLIR(cUnit, (LIR *) loadPcRel);
return res;
}
extern RegLocation dvmCompilerGetReturn(CompilationUnit *cUnit)
{
RegLocation res = LOC_C_RETURN;
dvmCompilerClobber(cUnit, r0);
dvmCompilerMarkInUse(cUnit, r0);
return res;
}
/*
* Load an immediate value into a fixed or temp register. Target
* register is clobbered, and marked inUse.
*/
static ArmLIR *loadConstant(CompilationUnit *cUnit, int rDest, int value)
{
if (dvmCompilerIsTemp(cUnit, rDest)) {
dvmCompilerClobber(cUnit, rDest);
dvmCompilerMarkInUse(cUnit, rDest);
}
return loadConstantNoClobber(cUnit, rDest, value);
}
extern RegLocation dvmCompilerGetReturnAlt(CompilationUnit *cUnit)
{
RegLocation res = LOC_C_RETURN;
res.lowReg = r1;
dvmCompilerClobber(cUnit, r1);
dvmCompilerMarkInUse(cUnit, r1);
return res;
}
