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Switch extendInBlock() to take a kill slot instead of the last use slot.

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Three out of four clients prefer this interface which is consistent with
extendIntervalEndTo() and LiveRangeCalc::extend().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139604 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-09-13 16:47:56 +00:00
parent c1c622ef0d
commit ee5655dca4
5 changed files with 17 additions and 20 deletions
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6
lib/CodeGen/SplitKit.cpp
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@@ -648,8 +648,7 @@ bool SplitEditor::transferValues() {
// The first block may be live-in, or it may have its own def.
if (Start != BlockStart) {
VNInfo *VNI = LI->extendInBlock(BlockStart,
std::min(BlockEnd, End).getPrevSlot());
VNInfo *VNI = LI->extendInBlock(BlockStart, std::min(BlockEnd, End));
assert(VNI && "Missing def for complex mapped value");
DEBUG(dbgs() << ':' << VNI->id << "*BB#" << MBB->getNumber());
// MBB has its own def. Is it also live-out?
@@ -669,8 +668,7 @@ bool SplitEditor::transferValues() {
if (BlockStart == ParentVNI->def) {
// This block has the def of a parent PHI, so it isn't live-in.
assert(ParentVNI->isPHIDef() && "Non-phi defined at block start?");
VNInfo *VNI = LI->extendInBlock(BlockStart,
std::min(BlockEnd, End).getPrevSlot());
VNInfo *VNI = LI->extendInBlock(BlockStart, std::min(BlockEnd, End));
assert(VNI && "Missing def for complex mapped parent PHI");
if (End >= BlockEnd)
LRC.setLiveOutValue(MBB, VNI); // Live-out as well.