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- Each val# can have multiple kills.

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- Fix some minor bugs related to special markers on val# def. ~0U means
  undefined, ~1U means dead val#.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40916 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-08-08 03:00:28 +00:00
parent 6a2bfdaab6
commit 8df786012d
4 changed files with 32 additions and 31 deletions
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9
lib/CodeGen/LiveInterval.cpp
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@ -300,7 +300,7 @@ void LiveInterval::join(LiveInterval &Other, int *LHSValNoAssignments,
// we want to avoid the interval scan if not.
bool MustMapCurValNos = false;
for (unsigned i = 0, e = getNumValNums(); i != e; ++i) {
if (ValueNumberInfo[i].def == ~1U) continue; // tombstone value #
//if (ValueNumberInfo[i].def == ~1U) continue; // tombstone value #
if (i != (unsigned)LHSValNoAssignments[i]) {
MustMapCurValNos = true;
break;
@ -508,14 +508,11 @@ void LiveInterval::print(std::ostream &OS, const MRegisterInfo *MRI) const {
OS << i << "@";
if (ValueNumberInfo[i].def == ~0U) {
OS << "?";
} else if (ValueNumberInfo[i].def == ~1U) {
OS << "x";
} else {
OS << ValueNumberInfo[i].def;
}
if (ValueNumberInfo[i].kill == ~0U) {
OS << ",?";
} else {
OS << "," << ValueNumberInfo[i].kill;
}
}
}
}