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Add LiveIntervals::Interval::empty() member function.

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llvm-svn: 11520
This commit is contained in:
Alkis Evlogimenos 2004-02-17 05:14:37 +00:00
parent c4ec9111bb
commit a479dc4715
1 changed files with 4 additions and 2 deletions
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6
include/llvm/CodeGen/LiveIntervals.h
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@ -42,13 +42,15 @@ namespace llvm {
Interval(unsigned r);
bool empty() const { return ranges.empty(); }
unsigned start() const {
assert(!ranges.empty() && "empty interval for register");
assert(!empty() && "empty interval for register");
return ranges.front().first;
}
unsigned end() const {
assert(!ranges.empty() && "empty interval for register");
assert(!empty() && "empty interval for register");
return ranges.back().second;
}