本文整理汇总了C++中TargetInfo::getConstraintRegister方法的典型用法代码示例。如果您正苦于以下问题：C++ TargetInfo::getConstraintRegister方法的具体用法？C++ TargetInfo::getConstraintRegister怎么用？C++ TargetInfo::getConstraintRegister使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TargetInfo的用法示例。
在下文中一共展示了TargetInfo::getConstraintRegister方法的1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C++代码示例。
示例1: SourceLocation
// Checks if there is a conflict between the input and output lists with the
// clobbers list. If there's a conflict, returns the location of the
// conflicted clobber, else returns nullptr
static SourceLocation
getClobberConflictLocation(MultiExprArg Exprs, StringLiteral **Constraints,
StringLiteral **Clobbers, int NumClobbers,
const TargetInfo &Target, ASTContext &Cont) {
llvm::StringSet<> InOutVars;
// Collect all the input and output registers from the extended asm
// statement in order to check for conflicts with the clobber list
for (unsigned int i = 0; i < Exprs.size(); ++i) {
StringRef Constraint = Constraints[i]->getString();
StringRef InOutReg = Target.getConstraintRegister(
Constraint, extractRegisterName(Exprs[i], Target));
if (InOutReg != "")
InOutVars.insert(InOutReg);
}
// Check for each item in the clobber list if it conflicts with the input
// or output
for (int i = 0; i < NumClobbers; ++i) {
StringRef Clobber = Clobbers[i]->getString();
// We only check registers, therefore we don't check cc and memory
// clobbers
if (Clobber == "cc" || Clobber == "memory")
continue;
Clobber = Target.getNormalizedGCCRegisterName(Clobber, true);
// Go over the output's registers we collected
if (InOutVars.count(Clobber))
return Clobbers[i]->getLocStart();
}
return SourceLocation();
}