6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-15 23:31:37 +00:00
Code Issues Projects Releases Wiki Activity

Localize a map, remove another

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5060 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-12-15 21:24:30 +00:00
parent f0eb7beb66
commit 01b08c59b4
1 changed files with 3 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
lib/CodeGen/RegAllocSimple.cpp
View File

@ -49,15 +49,9 @@ namespace {
// Maps SSA Regs => offsets on the stack where these values are stored // Maps SSA Regs => offsets on the stack where these values are stored
std::map<unsigned, unsigned> VirtReg2OffsetMap; std::map<unsigned, unsigned> VirtReg2OffsetMap;
// Maps SSA Regs => physical regs
std::map<unsigned, unsigned> SSA2PhysRegMap;
// Maps physical register to their register classes // Maps physical register to their register classes
PhysRegClassMap PhysRegClasses; PhysRegClassMap PhysRegClasses;
// Made to combat the incorrect allocation of r2 = add r1, r1
std::map<unsigned, unsigned> VirtReg2PhysRegMap;
// RegsUsed - Keep track of what registers are currently in use. // RegsUsed - Keep track of what registers are currently in use.
std::set<unsigned> RegsUsed; std::set<unsigned> RegsUsed;
@ -134,7 +128,6 @@ namespace {
void cleanupAfterFunction() { void cleanupAfterFunction() {
VirtReg2OffsetMap.clear(); VirtReg2OffsetMap.clear();
SSA2PhysRegMap.clear();
NumBytesAllocated = 4; // FIXME: This is X86 specific NumBytesAllocated = 4; // FIXME: This is X86 specific
} }
@ -357,6 +350,9 @@ void RegAllocSimple::AllocateBasicBlock(MachineBasicBlock &MBB) {
//loop over each basic block //loop over each basic block
for (MachineBasicBlock::iterator I = MBB.begin(); I != MBB.end(); ++I) { for (MachineBasicBlock::iterator I = MBB.begin(); I != MBB.end(); ++I) {
// Made to combat the incorrect allocation of r2 = add r1, r1
std::map<unsigned, unsigned> VirtReg2PhysRegMap;
MachineInstr *MI = *I; MachineInstr *MI = *I;
// a preliminary pass that will invalidate any registers that // a preliminary pass that will invalidate any registers that
@ -406,9 +402,7 @@ void RegAllocSimple::AllocateBasicBlock(MachineBasicBlock &MBB) {
", phys: " << op.getAllocatedRegNum() << "\n"); ", phys: " << op.getAllocatedRegNum() << "\n");
} }
} }
clearAllRegs(); clearAllRegs();
VirtReg2PhysRegMap.clear();
} }
} }