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authorJakob Stoklund Olesen <stoklund@2pi.dk>2012-07-14 18:45:35 +0000
committerJakob Stoklund Olesen <stoklund@2pi.dk>2012-07-14 18:45:35 +0000
commit27982e110817e373ed85064eb844bbaec0fe6771 (patch)
tree1c972fd0cf0b91dfd0729ac1d27aad9fcb82c643 /lib/CodeGen/InlineSpiller.cpp
parentc8981f2e3d6237742714883256cd778acf0eeebe (diff)
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Account for early-clobber reload instructions.
No test case, there are no in-tree targets that require this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160219 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/InlineSpiller.cpp')
-rw-r--r--lib/CodeGen/InlineSpiller.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/CodeGen/InlineSpiller.cpp b/lib/CodeGen/InlineSpiller.cpp
index 4c7f5d8c88..07e37af57f 100644
--- a/lib/CodeGen/InlineSpiller.cpp
+++ b/lib/CodeGen/InlineSpiller.cpp
@@ -1081,6 +1081,10 @@ void InlineSpiller::insertReload(LiveInterval &NewLI,
MRI.getRegClass(NewLI.reg), &TRI);
--MI; // Point to load instruction.
SlotIndex LoadIdx = LIS.InsertMachineInstrInMaps(MI).getRegSlot();
+ // Some (out-of-tree) targets have EC reload instructions.
+ if (MachineOperand *MO = MI->findRegisterDefOperand(NewLI.reg))
+ if (MO->isEarlyClobber())
+ LoadIdx = LoadIdx.getRegSlot(true);
DEBUG(dbgs() << "\treload: " << LoadIdx << '\t' << *MI);
VNInfo *LoadVNI = NewLI.getNextValue(LoadIdx, LIS.getVNInfoAllocator());
NewLI.addRange(LiveRange(LoadIdx, Idx, LoadVNI));