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Use BitVector instead of vector<bool> which can be extremely slow.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34302 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2007-02-15 05:59:24 +00:00
parent ad1d5c3bc5
commit 61de82d885
6 changed files with 12 additions and 9 deletions
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2
lib/CodeGen/RegAllocLocal.cpp
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@ -789,7 +789,7 @@ bool RA::runOnMachineFunction(MachineFunction &Fn) {
// is allocatable. To handle this, we mark all unallocatable registers as
// being pinned down, permanently.
{
std::vector<bool> Allocable = RegInfo->getAllocatableSet(Fn);
BitVector Allocable = RegInfo->getAllocatableSet(Fn);
for (unsigned i = 0, e = Allocable.size(); i != e; ++i)
if (!Allocable[i])
PhysRegsUsed[i] = -2; // Mark the reg unallocable.