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Delete dead code.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126801 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-03-01 23:24:19 +00:00
parent 670ccd18ae
commit edb87555e4
2 changed files with 0 additions and 68 deletions
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59
lib/CodeGen/SplitKit.cpp
View File

@ -445,65 +445,6 @@ VNInfo *LiveIntervalMap::extendTo(const MachineBasicBlock *MBB, SlotIndex Idx) {
return I->valno;
}
// addSimpleRange - Add a simple range from ParentLI to LI.
// ParentVNI must be live in the [Start;End) interval.
void LiveIntervalMap::addSimpleRange(SlotIndex Start, SlotIndex End,
const VNInfo *ParentVNI) {
assert(LI && "call reset first");
bool simple;
VNInfo *VNI = mapValue(ParentVNI, Start, &simple);
// A simple mapping is easy.
if (simple) {
LI->addRange(LiveRange(Start, End, VNI));
return;
}
// ParentVNI is a complex value. We must map per MBB.
MachineFunction::iterator MBB = LIS.getMBBFromIndex(Start);
MachineFunction::iterator MBBE = LIS.getMBBFromIndex(End.getPrevSlot());
if (MBB == MBBE) {
LI->addRange(LiveRange(Start, End, VNI));
return;
}
// First block.
LI->addRange(LiveRange(Start, LIS.getMBBEndIdx(MBB), VNI));
// Run sequence of full blocks.
for (++MBB; MBB != MBBE; ++MBB) {
Start = LIS.getMBBStartIdx(MBB);
LI->addRange(LiveRange(Start, LIS.getMBBEndIdx(MBB),
mapValue(ParentVNI, Start)));
}
// Final block.
Start = LIS.getMBBStartIdx(MBB);
if (Start != End)
LI->addRange(LiveRange(Start, End, mapValue(ParentVNI, Start)));
}
/// addRange - Add live ranges to LI where [Start;End) intersects ParentLI.
/// All needed values whose def is not inside [Start;End) must be defined
/// beforehand so mapValue will work.
void LiveIntervalMap::addRange(SlotIndex Start, SlotIndex End) {
assert(LI && "call reset first");
LiveInterval::const_iterator B = ParentLI.begin(), E = ParentLI.end();
LiveInterval::const_iterator I = std::lower_bound(B, E, Start);
// Check if --I begins before Start and overlaps.
if (I != B) {
--I;
if (I->end > Start)
addSimpleRange(Start, std::min(End, I->end), I->valno);
++I;
}
// The remaining ranges begin after Start.
for (;I != E && I->start < End; ++I)
addSimpleRange(I->start, std::min(End, I->end), I->valno);
}
//===----------------------------------------------------------------------===//
// Split Editor

9
lib/CodeGen/SplitKit.h
View File

@ -210,15 +210,6 @@ public:
// parentli is assumed to be live at Idx. Extend the live range to include
// Idx. Return the found VNInfo, or NULL.
VNInfo *extendTo(const MachineBasicBlock *MBB, SlotIndex Idx);
// addSimpleRange - Add a simple range from ParentLI to LI.
// ParentVNI must be live in the [Start;End) interval.
void addSimpleRange(SlotIndex Start, SlotIndex End, const VNInfo *ParentVNI);
/// addRange - Add live ranges to LI where [Start;End) intersects ParentLI.
/// All needed values whose def is not inside [Start;End) must be defined
/// beforehand so mapValue will work.
void addRange(SlotIndex Start, SlotIndex End);
};