6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-04-06 09:44:39 +00:00
Code Issues Projects Releases Wiki Activity

Let LiveInterval::addRange extend existing ranges, it will verify that value

Browse Source 
numbers match. The old check could accidentally leave holes in openli.

Also let useIntv add all ranges for the phi-def value inserted by
enterIntvAtEnd. This works as long at the value mapping is established in
enterIntvAtEnd.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110995 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2010-08-13 01:05:26 +00:00
parent 00667a54f2
commit 2780d3ca81
1 changed files with 2 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
lib/CodeGen/SplitKit.cpp
View File

@ -465,9 +465,6 @@ void SplitEditor::enterIntvAtEnd(MachineBasicBlock &A, MachineBasicBlock &B) {
VNIB = openli_->getNextValue(SlotIndex(StartB, true), 0, false,
lis_.getVNInfoAllocator());
VNIB->setIsPHIDef(true);
// Add a minimal range for the new value.
openli_->addRange(LiveRange(VNIB->def, std::min(EndB, CurB->end), VNIB));
VNInfo *&mapVNI = valueMap_[CurB->valno];
if (mapVNI) {
// Multiple copies - must create PHI value.
@ -496,8 +493,8 @@ void SplitEditor::useIntv(SlotIndex Start, SlotIndex End) {
if (I != B) {
--I;
// I begins before Start, but overlaps. openli may already have a value.
if (I->end > Start && !openli_->liveAt(Start))
// I begins before Start, but overlaps.
if (I->end > Start)
openli_->addRange(LiveRange(Start, std::min(End, I->end),
mapValue(I->valno)));
++I;