diff options
author | Evan Cheng <evan.cheng@apple.com> | 2011-12-07 07:15:52 +0000 |
---|---|---|
committer | Evan Cheng <evan.cheng@apple.com> | 2011-12-07 07:15:52 +0000 |
commit | 5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd (patch) | |
tree | 88fa5be8f6cf6e9a222e79c8806f29c8841925d1 /lib/Target/MBlaze | |
parent | 5729c5848c74a2413cc1d32a5f3c746aff5d9ccc (diff) | |
download | llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.tar.gz llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.tar.bz2 llvm-5a96b3dad2f634c9081c8b2b6c2575441dc5a2bd.tar.xz |
Add bundle aware API for querying instruction properties and switch the code
generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.
For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146026 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/MBlaze')
-rw-r--r-- | lib/Target/MBlaze/MBlazeAsmPrinter.cpp | 4 | ||||
-rw-r--r-- | lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp | 16 |
2 files changed, 9 insertions, 11 deletions
diff --git a/lib/Target/MBlaze/MBlazeAsmPrinter.cpp b/lib/Target/MBlaze/MBlazeAsmPrinter.cpp index ff051e331f..c751dd8caa 100644 --- a/lib/Target/MBlaze/MBlazeAsmPrinter.cpp +++ b/lib/Target/MBlaze/MBlazeAsmPrinter.cpp @@ -310,9 +310,9 @@ isBlockOnlyReachableByFallthrough(const MachineBasicBlock *MBB) const { // Check if the last terminator is an unconditional branch. MachineBasicBlock::const_iterator I = Pred->end(); - while (I != Pred->begin() && !(--I)->getDesc().isTerminator()) + while (I != Pred->begin() && !(--I)->isTerminator()) ; // Noop - return I == Pred->end() || !I->getDesc().isBarrier(); + return I == Pred->end() || !I->isBarrier(); } // Force static initialization. diff --git a/lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp b/lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp index e4b295d5b7..19e787d862 100644 --- a/lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp +++ b/lib/Target/MBlaze/MBlazeDelaySlotFiller.cpp @@ -107,7 +107,6 @@ static bool delayHasHazard(MachineBasicBlock::iterator &candidate, // Hazard check MachineBasicBlock::iterator a = candidate; MachineBasicBlock::iterator b = slot; - MCInstrDesc desc = candidate->getDesc(); // MBB layout:- // candidate := a0 = operation(a1, a2) @@ -121,7 +120,7 @@ static bool delayHasHazard(MachineBasicBlock::iterator &candidate, // 4. b0 is one or more of {a1, a2} // 5. a accesses memory, and the middle bit // contains a store operation. - bool a_is_memory = desc.mayLoad() || desc.mayStore(); + bool a_is_memory = candidate->mayLoad() || candidate->mayStore(); // Determine the number of operands in the slot instruction and in the // candidate instruction. @@ -154,7 +153,7 @@ static bool delayHasHazard(MachineBasicBlock::iterator &candidate, } // Check hazard type 5 - if (a_is_memory && m->getDesc().mayStore()) + if (a_is_memory && m->mayStore()) return true; } @@ -181,8 +180,8 @@ static bool isDelayFiller(MachineBasicBlock &MBB, if (candidate == MBB.begin()) return false; - MCInstrDesc brdesc = (--candidate)->getDesc(); - return (brdesc.hasDelaySlot()); + --candidate; + return (candidate->hasDelaySlot()); } static bool hasUnknownSideEffects(MachineBasicBlock::iterator &I) { @@ -209,9 +208,8 @@ findDelayInstr(MachineBasicBlock &MBB,MachineBasicBlock::iterator slot) { break; --I; - MCInstrDesc desc = I->getDesc(); - if (desc.hasDelaySlot() || desc.isBranch() || isDelayFiller(MBB,I) || - desc.isCall() || desc.isReturn() || desc.isBarrier() || + if (I->hasDelaySlot() || I->isBranch() || isDelayFiller(MBB,I) || + I->isCall() || I->isReturn() || I->isBarrier() || hasUnknownSideEffects(I)) break; @@ -230,7 +228,7 @@ findDelayInstr(MachineBasicBlock &MBB,MachineBasicBlock::iterator slot) { bool Filler::runOnMachineBasicBlock(MachineBasicBlock &MBB) { bool Changed = false; for (MachineBasicBlock::iterator I = MBB.begin(); I != MBB.end(); ++I) - if (I->getDesc().hasDelaySlot()) { + if (I->hasDelaySlot()) { MachineBasicBlock::iterator D = MBB.end(); MachineBasicBlock::iterator J = I; |