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add FIXME

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106126 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2010-06-16 18:45:08 +00:00
parent 0f800a6eb8
commit 956352eb46
1 changed files with 3 additions and 0 deletions
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lib/CodeGen/SjLjEHPrepare.cpp
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@ -289,6 +289,9 @@ splitLiveRangesAcrossInvokes(SmallVector<InvokeInst*,16> &Invokes) {
} }
// If we decided we need a spill, do it. // If we decided we need a spill, do it.
// FIXME: Spilling this way is overkill, as it forces all uses of
// the value to be reloaded from the stack slot, even those that aren't
// in the unwind blocks. We should be more selective.
if (NeedsSpill) { if (NeedsSpill) {
++NumSpilled; ++NumSpilled;
DemoteRegToStack(*Inst, true); DemoteRegToStack(*Inst, true);