diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Target/Sparc/DelaySlotFiller.cpp | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/lib/Target/Sparc/DelaySlotFiller.cpp b/lib/Target/Sparc/DelaySlotFiller.cpp index 6123773d5f..db3f15900b 100644 --- a/lib/Target/Sparc/DelaySlotFiller.cpp +++ b/lib/Target/Sparc/DelaySlotFiller.cpp @@ -61,8 +61,9 @@ namespace { bool isDelayFiller(MachineBasicBlock &MBB, MachineBasicBlock::iterator candidate); - void insertCallUses(MachineBasicBlock::iterator MI, - SmallSet<unsigned, 32>& RegUses); + void insertCallDefsUses(MachineBasicBlock::iterator MI, + SmallSet<unsigned, 32>& RegDefs, + SmallSet<unsigned, 32>& RegUses); void insertDefsUses(MachineBasicBlock::iterator MI, SmallSet<unsigned, 32>& RegDefs, @@ -150,7 +151,7 @@ Filler::findDelayInstr(MachineBasicBlock &MBB, //Call's delay filler can def some of call's uses. if (slot->isCall()) - insertCallUses(slot, RegUses); + insertCallDefsUses(slot, RegDefs, RegUses); else insertDefsUses(slot, RegDefs, RegUses); @@ -230,9 +231,12 @@ bool Filler::delayHasHazard(MachineBasicBlock::iterator candidate, } -void Filler::insertCallUses(MachineBasicBlock::iterator MI, - SmallSet<unsigned, 32>& RegUses) +void Filler::insertCallDefsUses(MachineBasicBlock::iterator MI, + SmallSet<unsigned, 32>& RegDefs, + SmallSet<unsigned, 32>& RegUses) { + //Call defines o7, which is visible to the instruction in delay slot. + RegDefs.insert(SP::O7); switch(MI->getOpcode()) { default: llvm_unreachable("Unknown opcode."); |