bug where spill instructions were added to the next basic block
instead of the end of the current one if the instruction that required
the spill was the last in the block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10272
91177308-0d34-0410-b5e6-
96231b3b80d8
v2pMap_.clear();
v2ssMap_.clear();
v2pMap_.clear();
v2ssMap_.clear();
+ DEBUG(
+ for (MachineBasicBlockPtrs::iterator
+ mbbi = mbbs_.begin(), mbbe = mbbs_.end();
+ mbbi != mbbe; ++mbbi) {
+ MachineBasicBlock* mbb = *mbbi;
+ std::cerr << mbb->getBasicBlock()->getName() << '\n';
+ for (MachineBasicBlock::iterator
+ ii = mbb->begin(), ie = mbb->end();
+ ii != ie; ++ii) {
+ MachineInstr* instr = *ii;
+
+ std::cerr << "\t";
+ instr->print(std::cerr, *tm_);
+ }
+ }
+ );
+
// FIXME: this will work only for the X86 backend. I need to
// device an algorthm to select the minimal (considering register
// aliasing) number of temp registers to reserve so that we have 2
// FIXME: this will work only for the X86 backend. I need to
// device an algorthm to select the minimal (considering register
// aliasing) number of temp registers to reserve so that we have 2
DEBUG(std::cerr << "\tinstruction: ";
(*currentInstr_)->print(std::cerr, *tm_););
DEBUG(std::cerr << "\tinstruction: ";
(*currentInstr_)->print(std::cerr, *tm_););
- DEBUG(std::cerr << "\t\tspilling temporarily defined operands "
- "of previous instruction:\n");
- for (unsigned i = 0, e = tempDefOperands_.size(); i != e; ++i) {
- spillVirtReg(tempDefOperands_[i]);
- }
- tempDefOperands_.clear();
// use our current mapping and actually replace and
// virtual register with its allocated physical registers
// use our current mapping and actually replace and
// virtual register with its allocated physical registers
(*currentInstr_)->SetMachineOperandReg(1, regA);
}
}
(*currentInstr_)->SetMachineOperandReg(1, regA);
}
}
+
+ DEBUG(std::cerr << "\t\tspilling temporarily defined operands "
+ "of this instruction:\n");
+ ++currentInstr_; // we want to insert after this instruction
+ for (unsigned i = 0, e = tempDefOperands_.size(); i != e; ++i) {
+ spillVirtReg(tempDefOperands_[i]);
+ }
+ --currentInstr_; // restore currentInstr_ iterator
+ tempDefOperands_.clear();
}
for (unsigned i = 0, e = p2vMap_.size(); i != e; ++i) {
}
for (unsigned i = 0, e = p2vMap_.size(); i != e; ++i) {