6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-06-12 13:38:21 +00:00
Code Issues Projects Releases Wiki Activity

Improved tracking of value number kills. VN kills are now represented

Browse Source 
as an (index,bool) pair. The bool flag records whether the kill is a
PHI kill or not. This code will be used to enable splitting of live
intervals containing PHI-kills.

A slight change to live interval weights introduced an extra spill
into lsr-code-insertion (outside the critical sections). The test 
condition has been updated to reflect this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75097 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames
2009-07-09 03:57:02 +00:00
parent 482fa0f2bc
commit ffd1326ff8
9 changed files with 164 additions and 66 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
lib/CodeGen/StrongPHIElimination.cpp
View File

@ -829,8 +829,8 @@ void StrongPHIElimination::InsertCopies(MachineDomTreeNode* MDTN,
VNInfo* FirstVN = *Int.vni_begin();
FirstVN->setHasPHIKill(false);
if (I->getOperand(i).isKill())
FirstVN->kills.push_back(
LiveIntervals::getUseIndex(LI.getInstructionIndex(I)));
Int.addKill(FirstVN,
LiveIntervals::getUseIndex(LI.getInstructionIndex(I)), false);
LiveRange LR (LI.getMBBStartIdx(I->getParent()),
LiveIntervals::getUseIndex(LI.getInstructionIndex(I))+1,