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author | Akira Hatanaka <ahatanaka@mips.com> | 2011-10-05 18:16:09 +0000 |
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committer | Akira Hatanaka <ahatanaka@mips.com> | 2011-10-05 18:16:09 +0000 |
commit | 41a796e9cc6cc72b9380a5f09f0c27dc607e0613 (patch) | |
tree | c87824688093b860f9327ef05b611c376dec5d93 /lib/Target/Mips/MipsDelaySlotFiller.cpp | |
parent | da5836572de7833052f8b7d0715662f930eaf81c (diff) | |
download | llvm-41a796e9cc6cc72b9380a5f09f0c27dc607e0613.tar.gz llvm-41a796e9cc6cc72b9380a5f09f0c27dc607e0613.tar.bz2 llvm-41a796e9cc6cc72b9380a5f09f0c27dc607e0613.tar.xz |
Make sure candidate for delay slot filler is not a return instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141196 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/MipsDelaySlotFiller.cpp')
-rw-r--r-- | lib/Target/Mips/MipsDelaySlotFiller.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Target/Mips/MipsDelaySlotFiller.cpp b/lib/Target/Mips/MipsDelaySlotFiller.cpp index b8443c1030..94bdd68107 100644 --- a/lib/Target/Mips/MipsDelaySlotFiller.cpp +++ b/lib/Target/Mips/MipsDelaySlotFiller.cpp @@ -174,15 +174,16 @@ bool Filler::delayHasHazard(MachineBasicBlock::iterator candidate, if (candidate->isImplicitDef() || candidate->isKill()) return true; + MCInstrDesc MCID = candidate->getDesc(); // Loads or stores cannot be moved past a store to the delay slot // and stores cannot be moved past a load. - if (candidate->getDesc().mayLoad()) { + if (MCID.mayLoad()) { if (sawStore) return true; sawLoad = true; } - if (candidate->getDesc().mayStore()) { + if (MCID.mayStore()) { if (sawStore) return true; sawStore = true; @@ -190,7 +191,8 @@ bool Filler::delayHasHazard(MachineBasicBlock::iterator candidate, return true; } - assert(!candidate->getDesc().isCall() && "Cannot put calls in delay slot."); + assert((!MCID.isCall() && !MCID.isReturn()) && + "Cannot put calls in delay slot."); for (unsigned i = 0, e = candidate->getNumOperands(); i!= e; ++i) { const MachineOperand &MO = candidate->getOperand(i); |