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Tidy up VNInfo alignment code. Patch contributed by Ryan Flynn.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75587 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Lang Hames 2009-07-14 02:05:37 +00:00
parent b468709c91
commit 08759c5601
1 changed files with 21 additions and 22 deletions
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43
include/llvm/CodeGen/LiveInterval.h
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@ -211,7 +211,25 @@ namespace llvm {
/// LiveInterval - This class represents some number of live ranges for a
/// register or value. This class also contains a bit of register allocator
/// state.
struct LiveInterval {
class LiveInterval {
private:
inline unsigned getVNInfoAlignment(void) {
#ifdef __GNUC__
return (unsigned)__alignof__(VNInfo);
#else
// FIXME: ugly.
return 8u;
#endif
}
Ranges::iterator addRangeFrom(LiveRange LR, Ranges::iterator From);
void extendIntervalEndTo(Ranges::iterator I, unsigned NewEnd);
Ranges::iterator extendIntervalStartTo(Ranges::iterator I, unsigned NewStr);
LiveInterval& operator=(const LiveInterval& rhs); // DO NOT IMPLEMENT
public:
typedef SmallVector<LiveRange,4> Ranges;
typedef SmallVector<VNInfo*,4> VNInfoList;
@ -220,8 +238,6 @@ namespace llvm {
float weight; // weight of this interval
Ranges ranges; // the ranges in which this register is live
VNInfoList valnos; // value#'s
public:
struct InstrSlots {
enum {
@ -330,15 +346,9 @@ namespace llvm {
assert(MIIdx != ~0u && MIIdx != ~1u &&
"PHI def / unused flags should now be passed explicitly.");
#ifdef __GNUC__
unsigned Alignment = (unsigned)__alignof__(VNInfo);
#else
// FIXME: ugly.
unsigned Alignment = 8;
#endif
VNInfo *VNI =
static_cast<VNInfo*>(VNInfoAllocator.Allocate((unsigned)sizeof(VNInfo),
Alignment));
getVNInfoAlignment()));
new (VNI) VNInfo((unsigned)valnos.size(), MIIdx, CopyMI);
VNI->setIsDefAccurate(isDefAccurate);
valnos.push_back(VNI);
@ -349,15 +359,9 @@ namespace llvm {
/// for the Value number.
VNInfo *createValueCopy(const VNInfo *orig, BumpPtrAllocator &VNInfoAllocator) {
#ifdef __GNUC__
unsigned Alignment = (unsigned)__alignof__(VNInfo);
#else
// FIXME: ugly.
unsigned Alignment = 8;
#endif
VNInfo *VNI =
static_cast<VNInfo*>(VNInfoAllocator.Allocate((unsigned)sizeof(VNInfo),
Alignment));
getVNInfoAlignment()));
new (VNI) VNInfo((unsigned)valnos.size(), *orig);
valnos.push_back(VNI);
@ -594,11 +598,6 @@ namespace llvm {
}
void dump() const;
private:
Ranges::iterator addRangeFrom(LiveRange LR, Ranges::iterator From);
void extendIntervalEndTo(Ranges::iterator I, unsigned NewEnd);
Ranges::iterator extendIntervalStartTo(Ranges::iterator I, unsigned NewStr);
LiveInterval& operator=(const LiveInterval& rhs); // DO NOT IMPLEMENT
};
inline std::ostream &operator<<(std::ostream &OS, const LiveInterval &LI) {