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| author | Andrew Trick <atrick@apple.com> | 2013-11-17 01:36:23 +0000 |
|---|---|---|
| committer | Andrew Trick <atrick@apple.com> | 2013-11-17 01:36:23 +0000 |
| commit | bb756ca24401e190e3b704e5d92759c7a79cc6b7 (patch) | |
| tree | 0c4bcba47b3a9717739a7c8f876a88363dc3ae02 /lib/CodeGen/InlineSpiller.cpp | |
| parent | b7dabccbce5fc6fcf7b36669eb04abcb001e7f9e (diff) | |
| download | llvm-bb756ca24401e190e3b704e5d92759c7a79cc6b7.tar.gz llvm-bb756ca24401e190e3b704e5d92759c7a79cc6b7.tar.bz2 llvm-bb756ca24401e190e3b704e5d92759c7a79cc6b7.tar.xz | |
Added a size field to the stack map record to handle subregister spills.
Implementing this on bigendian platforms could get strange. I added a
target hook, getStackSlotRange, per Jakob's recommendation to make
this as explicit as possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194942 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/InlineSpiller.cpp')
| -rw-r--r-- | lib/CodeGen/InlineSpiller.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/InlineSpiller.cpp b/lib/CodeGen/InlineSpiller.cpp index 99d2bd46a2..bb0e642313 100644 --- a/lib/CodeGen/InlineSpiller.cpp +++ b/lib/CodeGen/InlineSpiller.cpp @@ -1057,6 +1057,9 @@ foldMemoryOperand(ArrayRef<std::pair<MachineInstr*, unsigned> > Ops, bool WasCopy = MI->isCopy(); unsigned ImpReg = 0; + bool SpillSubRegs = (MI->getOpcode() == TargetOpcode::PATCHPOINT || + MI->getOpcode() == TargetOpcode::STACKMAP); + // TargetInstrInfo::foldMemoryOperand only expects explicit, non-tied // operands. SmallVector<unsigned, 8> FoldOps; @@ -1068,7 +1071,7 @@ foldMemoryOperand(ArrayRef<std::pair<MachineInstr*, unsigned> > Ops, continue; } // FIXME: Teach targets to deal with subregs. - if (MO.getSubReg()) + if (!SpillSubRegs && MO.getSubReg()) return false; // We cannot fold a load instruction into a def. if (LoadMI && MO.isDef()) |