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Add some more detailed debugging information in RegisterCoalescer 

llvm-svn: 279835
This commit is contained in:
Krzysztof Parzyszek 2016-08-26 16:46:14 +00:00
parent d3c7bb28be
commit eb34b71f0a
1 changed files with 19 additions and 5 deletions
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22
llvm/lib/CodeGen/RegisterCoalescer.cpp
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@ -2690,8 +2690,15 @@ void RegisterCoalescer::joinSubRegRanges(LiveRange &LRange, LiveRange &RRange,
// Recompute the parts of the live range we had to remove because of // Recompute the parts of the live range we had to remove because of
// CR_Replace conflicts. // CR_Replace conflicts.
DEBUG(dbgs() << "\t\trestoring liveness to " << EndPoints.size() DEBUG({
<< " points: " << LRange << '\n'); dbgs() << "\t\trestoring liveness to " << EndPoints.size() << " points: ";
for (unsigned i = 0, n = EndPoints.size(); i != n; ++i) {
dbgs() << EndPoints[i];
if (i != n-1)
dbgs() << ',';
}
dbgs() << ": " << LRange << '\n';
});
LIS->extendToIndices(LRange, EndPoints); LIS->extendToIndices(LRange, EndPoints);
} }
@ -2832,8 +2839,15 @@ bool RegisterCoalescer::joinVirtRegs(CoalescerPair &CP) {
if (!EndPoints.empty()) { if (!EndPoints.empty()) {
// Recompute the parts of the live range we had to remove because of // Recompute the parts of the live range we had to remove because of
// CR_Replace conflicts. // CR_Replace conflicts.
DEBUG(dbgs() << "\t\trestoring liveness to " << EndPoints.size() DEBUG({
<< " points: " << LHS << '\n'); dbgs() << "\t\trestoring liveness to " << EndPoints.size() << " points: "
for (unsigned i = 0, n = EndPoints.size(); i != n; ++i) {
dbgs() << EndPoints[i];
if (i != n-1)
dbgs() << ',';
}
dbgs() << ": " << LHS << '\n';
});
LIS->extendToIndices((LiveRange&)LHS, EndPoints); LIS->extendToIndices((LiveRange&)LHS, EndPoints);
} }