6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-07 12:28:24 +00:00
Code Issues Projects Releases Wiki Activity

When creating intervals, leave min(1, numdefs) holes after each instruction.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57765 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2008-10-18 05:18:55 +00:00
parent 4ae14bc1f5
commit 99fe34b9b2
1 changed files with 13 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
lib/CodeGen/LiveIntervalAnalysis.cpp
View File

@@ -130,9 +130,13 @@ void LiveIntervals::computeNumbering() {
MIIndex += InstrSlots::NUM; MIIndex += InstrSlots::NUM;
FunctionSize++; FunctionSize++;
// Insert an empty slot after every instruction. // Insert min(1, numdefs) empty slots after every instruction.
MIIndex += InstrSlots::NUM; unsigned Slots = I->getDesc().getNumDefs();
i2miMap_.push_back(0); if (Slots == 0)
Slots = 1;
MIIndex += InstrSlots::NUM * Slots;
while (Slots--)
i2miMap_.push_back(0);
} }
// Set the MBB2IdxMap entry for this MBB. // Set the MBB2IdxMap entry for this MBB.
@@ -732,8 +736,12 @@ void LiveIntervals::computeIntervals() {
handleRegisterDef(MBB, MI, MIIndex, MO, i); handleRegisterDef(MBB, MI, MIIndex, MO, i);
} }
} }
MIIndex += InstrSlots::NUM; // Skip over the empty slots after each instruction.
unsigned Slots = MI->getDesc().getNumDefs();
if (Slots == 0)
Slots = 1;
MIIndex += InstrSlots::NUM * Slots;
// Skip over empty indices. // Skip over empty indices.
while (MIIndex / InstrSlots::NUM < i2miMap_.size() && while (MIIndex / InstrSlots::NUM < i2miMap_.size() &&