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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157002 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Trick
2012-05-17 18:35:00 +00:00
parent 94e58f3a7c
commit 24617213ba
2 changed files with 3 additions and 2 deletions
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4
lib/CodeGen/RegisterPressure.cpp
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@@ -578,12 +578,12 @@ static int computeMaxPressureDelta(ArrayRef<unsigned> OldPressureVec,
unsigned Limit = TRI->getRegPressureSetLimit(i);
if (Limit > POld) {
if (Limit > PNew)
PDiff = 0; // Under the limit
PDiff = 0; // Under the limit
else
PDiff = PNew - Limit; // Just exceeded limit.
}
else if (Limit > PNew)
PDiff = Limit - POld; // Just obeyed limit.
PDiff = Limit - POld; // Just obeyed limit.
if (std::abs(PDiff) > std::abs(ExcessUnits)) {
ExcessUnits = PDiff;

1
lib/CodeGen/RegisterPressure.h
View File

@@ -218,6 +218,7 @@ public:
void getMaxPressureDelta(const MachineInstr *MI, RegPressureDelta &Delta) {
if (isTopClosed())
return getMaxDownwardPressureDelta(MI, Delta);
assert(isBottomClosed() && "Uninitialized pressure tracker");
return getMaxUpwardPressureDelta(MI, Delta);
}