本文整理汇总了Java中com.android.dx.dex.DexOptions.ALIGN_64BIT_REGS_SUPPORT属性的典型用法代码示例。如果您正苦于以下问题：Java DexOptions.ALIGN_64BIT_REGS_SUPPORT属性的具体用法？Java DexOptions.ALIGN_64BIT_REGS_SUPPORT怎么用？Java DexOptions.ALIGN_64BIT_REGS_SUPPORT使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类com.android.dx.dex.DexOptions的用法示例。
在下文中一共展示了DexOptions.ALIGN_64BIT_REGS_SUPPORT属性的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getAlignment
/**
* Return the register alignment constraint to have 64-bits registers that will be align on even
* dalvik registers after that parameter registers are move up to the top of the frame to match
* the calling convention.
*
* @param regCategory category of the register that will be aligned.
* @return the register alignment constraint.
*/
private Alignment getAlignment(int regCategory) {
Alignment alignment = Alignment.UNSPECIFIED;
if (DexOptions.ALIGN_64BIT_REGS_SUPPORT && regCategory == 2) {
if (isEven(paramRangeEnd)) {
alignment = Alignment.EVEN;
} else {
alignment = Alignment.ODD;
}
}
return alignment;
}
示例2: findAnyFittingRange
/**
* Finds an unreserved range that will fit the sources of the
* specified instruction. Does not bother trying to center the range
* around an already-mapped source register;
*
* @param insn {@code non-null;} insn to build range for
* @param rangeLength {@code >=0;} length required in register units
* @param categoriesForIndex {@code non-null;} indexed by source index;
* the category for each source
* @param outMovesRequired {@code non-null;} an output parameter indexed by
* source index that will contain the set of sources which need
* moves inserted
* @return the rop register that starts the fitting range
*/
private int findAnyFittingRange(NormalSsaInsn insn, int rangeLength,
int[] categoriesForIndex, BitSet outMovesRequired) {
Alignment alignment = Alignment.UNSPECIFIED;
if (DexOptions.ALIGN_64BIT_REGS_SUPPORT) {
int regNumber = 0;
int p64bitsAligned = 0;
int p64bitsNotAligned = 0;
for (int category : categoriesForIndex) {
if (category == 2) {
if (isEven(regNumber)) {
p64bitsAligned++;
} else {
p64bitsNotAligned++;
}
regNumber += 2;
} else {
regNumber += 1;
}
}
if (p64bitsNotAligned > p64bitsAligned) {
if (isEven(paramRangeEnd)) {
alignment = Alignment.ODD;
} else {
alignment = Alignment.EVEN;
}
} else if (p64bitsAligned > 0) {
if (isEven(paramRangeEnd)) {
alignment = Alignment.EVEN;
} else {
alignment = Alignment.ODD;
}
}
}
int rangeStart = paramRangeEnd;
while (true) {
rangeStart = findNextUnreservedRopReg(rangeStart, rangeLength, alignment);
int fitWidth = fitPlanForRange(rangeStart, insn, categoriesForIndex, outMovesRequired);
if (fitWidth >= 0) {
break;
}
rangeStart++;
outMovesRequired.clear();
}
return rangeStart;
}