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author | Misha Brukman <brukman+llvm@gmail.com> | 2003-05-23 19:20:57 +0000 |
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committer | Misha Brukman <brukman+llvm@gmail.com> | 2003-05-23 19:20:57 +0000 |
commit | f96eb64666003112b3a525820d0ad64df90b3e73 (patch) | |
tree | 338cd1f0f37506c8add1f6aa3051f86b76a66872 /lib/Target | |
parent | baf850a51a253a39c60196343d756197bfbb27db (diff) | |
download | external_llvm-f96eb64666003112b3a525820d0ad64df90b3e73.zip external_llvm-f96eb64666003112b3a525820d0ad64df90b3e73.tar.gz external_llvm-f96eb64666003112b3a525820d0ad64df90b3e73.tar.bz2 |
Cleaned up code layout; no functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6312 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
-rw-r--r-- | lib/Target/SparcV9/SparcV9PeepholeOpts.cpp | 44 |
1 files changed, 20 insertions, 24 deletions
diff --git a/lib/Target/SparcV9/SparcV9PeepholeOpts.cpp b/lib/Target/SparcV9/SparcV9PeepholeOpts.cpp index 9cff89f..73e9ec9 100644 --- a/lib/Target/SparcV9/SparcV9PeepholeOpts.cpp +++ b/lib/Target/SparcV9/SparcV9PeepholeOpts.cpp @@ -22,21 +22,19 @@ DeleteInstruction(MachineBasicBlock& mvec, const TargetMachine& target) { // Check if this instruction is in a delay slot of its predecessor. - if (BBI != mvec.begin()) - { + if (BBI != mvec.begin()) { const TargetInstrInfo& mii = target.getInstrInfo(); MachineInstr* predMI = *(BBI-1); - if (unsigned ndelay = mii.getNumDelaySlots(predMI->getOpCode())) - { - // This instruction is in a delay slot of its predecessor, so - // replace it with a nop. By replacing in place, we save having - // to update the I-I maps. - // - assert(ndelay == 1 && "Not yet handling multiple-delay-slot targets"); - (*BBI)->replace(mii.getNOPOpCode(), 0); - return; - } - } + if (unsigned ndelay = mii.getNumDelaySlots(predMI->getOpCode())) { + // This instruction is in a delay slot of its predecessor, so + // replace it with a nop. By replacing in place, we save having + // to update the I-I maps. + // + assert(ndelay == 1 && "Not yet handling multiple-delay-slot targets"); + (*BBI)->replace(mii.getNOPOpCode(), 0); + return; + } + } // The instruction is not in a delay slot, so we can simply erase it. mvec.erase(BBI); @@ -51,11 +49,10 @@ RemoveUselessCopies(MachineBasicBlock& mvec, MachineBasicBlock::iterator& BBI, const TargetMachine& target) { - if (target.getOptInfo().IsUselessCopy(*BBI)) - { - DeleteInstruction(mvec, BBI, target); - return true; - } + if (target.getOptInfo().IsUselessCopy(*BBI)) { + DeleteInstruction(mvec, BBI, target); + return true; + } return false; } @@ -117,11 +114,11 @@ PeepholeOpts::runOnBasicBlock(BasicBlock &BB) // for (MachineBasicBlock::reverse_iterator RI=mvec.rbegin(), RE=mvec.rend(); RI != RE; ) - { - MachineBasicBlock::iterator BBI = RI.base()-1; // save before incr - ++RI; // pre-increment to delete MI or after it - visit(mvec, BBI); - } + { + MachineBasicBlock::iterator BBI = RI.base()-1; // save before incr + ++RI; // pre-increment to delete MI or after it + visit(mvec, BBI); + } return true; } @@ -136,4 +133,3 @@ createPeepholeOptsPass(TargetMachine &T) { return new PeepholeOpts(T); } - |