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| author | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2016-05-10 08:09:37 +0000 |
|---|---|---|
| committer | Jonas Paulsson <paulsson@linux.vnet.ibm.com> | 2016-05-10 08:09:37 +0000 |
| commit | 8e5b0c65ccb012c850a8d11cc74eafe79dea5825 (patch) | |
| tree | c6b142f74a0918651eded82ebcb579f29831989a /llvm/lib/CodeGen/InlineSpiller.cpp | |
| parent | ebc7135f8e529470c9745e8324d74f48f0fc3749 (diff) | |
| download | bcm5719-llvm-8e5b0c65ccb012c850a8d11cc74eafe79dea5825.tar.gz bcm5719-llvm-8e5b0c65ccb012c850a8d11cc74eafe79dea5825.zip | |
[foldMemoryOperand()] Pass LiveIntervals to enable liveness check.
SystemZ (and probably other targets as well) can fold a memory operand
by changing the opcode into a new instruction that as a side-effect
also clobbers the CC-reg.
In order to do this, liveness of that reg must first be checked. When
LIS is passed, getRegUnit() can be called on it and the right
LiveRange is computed on demand.
Reviewed by Matthias Braun.
http://reviews.llvm.org/D19861
llvm-svn: 269026
Diffstat (limited to 'llvm/lib/CodeGen/InlineSpiller.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/InlineSpiller.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/InlineSpiller.cpp b/llvm/lib/CodeGen/InlineSpiller.cpp index 33340901816..6d2fcb9c358 100644 --- a/llvm/lib/CodeGen/InlineSpiller.cpp +++ b/llvm/lib/CodeGen/InlineSpiller.cpp @@ -761,8 +761,8 @@ foldMemoryOperand(ArrayRef<std::pair<MachineInstr*, unsigned> > Ops, MachineInstrSpan MIS(MI); MachineInstr *FoldMI = - LoadMI ? TII.foldMemoryOperand(MI, FoldOps, LoadMI) - : TII.foldMemoryOperand(MI, FoldOps, StackSlot); + LoadMI ? TII.foldMemoryOperand(MI, FoldOps, LoadMI, &LIS) + : TII.foldMemoryOperand(MI, FoldOps, StackSlot, &LIS); if (!FoldMI) return false; |
