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CodeGen: Add a getSectionKind method to MachineConstantPoolEntry

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This is just a helper routine, no functionality has changed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212993 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Majnemer
2014-07-14 22:06:29 +00:00
parent 26a4201636
commit a539d7b4df
3 changed files with 35 additions and 15 deletions
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3
include/llvm/CodeGen/MachineConstantPool.h
View File

@@ -17,6 +17,7 @@
#define LLVM_CODEGEN_MACHINECONSTANTPOOL_H #define LLVM_CODEGEN_MACHINECONSTANTPOOL_H
#include "llvm/ADT/DenseSet.h" #include "llvm/ADT/DenseSet.h"
#include "llvm/MC/SectionKind.h"
#include <cassert> #include <cassert>
#include <climits> #include <climits>
#include <vector> #include <vector>
@@ -119,6 +120,8 @@ public:
/// them. /// them.
/// 2: This entry may have arbitrary relocations. /// 2: This entry may have arbitrary relocations.
unsigned getRelocationInfo() const; unsigned getRelocationInfo() const;
SectionKind getSectionKind(const DataLayout *DL) const;
}; };
/// The MachineConstantPool class keeps track of constants referenced by a /// The MachineConstantPool class keeps track of constants referenced by a

16
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@@ -1062,21 +1062,7 @@ void AsmPrinter::EmitConstantPool() {
const MachineConstantPoolEntry &CPE = CP[i]; const MachineConstantPoolEntry &CPE = CP[i];
unsigned Align = CPE.getAlignment(); unsigned Align = CPE.getAlignment();
SectionKind Kind; SectionKind Kind = CPE.getSectionKind(TM.getDataLayout());
switch (CPE.getRelocationInfo()) {
default: llvm_unreachable("Unknown section kind");
case 2: Kind = SectionKind::getReadOnlyWithRel(); break;
case 1:
Kind = SectionKind::getReadOnlyWithRelLocal();
break;
case 0:
switch (TM.getDataLayout()->getTypeAllocSize(CPE.getType())) {
case 4: Kind = SectionKind::getMergeableConst4(); break;
case 8: Kind = SectionKind::getMergeableConst8(); break;
case 16: Kind = SectionKind::getMergeableConst16();break;
default: Kind = SectionKind::getMergeableConst(); break;
}
}
const MCSection *S = getObjFileLowering().getSectionForConstant(Kind); const MCSection *S = getObjFileLowering().getSectionForConstant(Kind);

31
lib/CodeGen/MachineFunction.cpp
View File

@@ -836,6 +836,37 @@ unsigned MachineConstantPoolEntry::getRelocationInfo() const {
return Val.ConstVal->getRelocationInfo(); return Val.ConstVal->getRelocationInfo();
} }
SectionKind
MachineConstantPoolEntry::getSectionKind(const DataLayout *DL) const {
SectionKind Kind;
switch (getRelocationInfo()) {
default:
llvm_unreachable("Unknown section kind");
case 2:
Kind = SectionKind::getReadOnlyWithRel();
break;
case 1:
Kind = SectionKind::getReadOnlyWithRelLocal();
break;
case 0:
switch (DL->getTypeAllocSize(getType())) {
case 4:
Kind = SectionKind::getMergeableConst4();
break;
case 8:
Kind = SectionKind::getMergeableConst8();
break;
case 16:
Kind = SectionKind::getMergeableConst16();
break;
default:
Kind = SectionKind::getMergeableConst();
break;
}
}
return Kind;
}
MachineConstantPool::~MachineConstantPool() { MachineConstantPool::~MachineConstantPool() {
for (unsigned i = 0, e = Constants.size(); i != e; ++i) for (unsigned i = 0, e = Constants.size(); i != e; ++i)
if (Constants[i].isMachineConstantPoolEntry()) if (Constants[i].isMachineConstantPoolEntry())