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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-10-15 21:57:41 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-10-15 21:57:41 +0000 |
| commit | c30a9af2d78765e1f7c479d7acd1fd1e4b183286 (patch) | |
| tree | ee31057ef6c62608e562a43b48a2a78530aee9a3 /llvm/lib/CodeGen/RegAllocPBQP.cpp | |
| parent | 57e310613c8cda5ab050bb132efe848cd5562a5f (diff) | |
| download | bcm5719-llvm-c30a9af2d78765e1f7c479d7acd1fd1e4b183286.tar.gz bcm5719-llvm-c30a9af2d78765e1f7c479d7acd1fd1e4b183286.zip | |
Switch most getReservedRegs() clients to the MRI equivalent.
Using the cached bit vector in MRI avoids comstantly allocating and
recomputing the reserved register bit vector.
llvm-svn: 165983
Diffstat (limited to 'llvm/lib/CodeGen/RegAllocPBQP.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/RegAllocPBQP.cpp | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/llvm/lib/CodeGen/RegAllocPBQP.cpp b/llvm/lib/CodeGen/RegAllocPBQP.cpp index 984aab2a7a8..27224904773 100644 --- a/llvm/lib/CodeGen/RegAllocPBQP.cpp +++ b/llvm/lib/CodeGen/RegAllocPBQP.cpp @@ -208,8 +208,6 @@ std::auto_ptr<PBQPRAProblem> PBQPBuilder::build(MachineFunction *mf, mri->setPhysRegUsed(Reg); } - BitVector reservedRegs = tri->getReservedRegs(*mf); - // Iterate over vregs. for (RegSet::const_iterator vregItr = vregs.begin(), vregEnd = vregs.end(); vregItr != vregEnd; ++vregItr) { @@ -227,7 +225,7 @@ std::auto_ptr<PBQPRAProblem> PBQPBuilder::build(MachineFunction *mf, ArrayRef<uint16_t> rawOrder = trc->getRawAllocationOrder(*mf); for (unsigned i = 0; i != rawOrder.size(); ++i) { unsigned preg = rawOrder[i]; - if (reservedRegs.test(preg)) + if (mri->isReserved(preg)) continue; // vregLI crosses a regmask operand that clobbers preg. |
