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Remove getFunctionAlignment from TargetELFInfo and use new MachineFunction alignment method

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74686 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bruno Cardoso Lopes 2009-07-02 02:13:13 +00:00
parent 2c3f00cd94
commit 3d62a412fb
5 changed files with 5 additions and 34 deletions
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4
include/llvm/Target/TargetELFWriterInfo.h
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@ -89,10 +89,6 @@ namespace llvm {
: (hasRelocationAddend() ? 12 : 8);
}
/// getFunctionAlignment - Returns the alignment for function 'F', targets
/// with different alignment constraints should overload this method
virtual unsigned getFunctionAlignment(const Function *F) const;
/// getRelocationType - Returns the target specific ELF Relocation type.
/// 'MachineRelTy' contains the object code independent relocation type
virtual unsigned getRelocationType(unsigned MachineRelTy) const = 0;

9
lib/CodeGen/ELFCodeEmitter.cpp
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@ -40,10 +40,11 @@ void ELFCodeEmitter::startFunction(MachineFunction &MF) {
BufferBegin = &BD[0];
BufferEnd = BufferBegin + BD.capacity();
// Align the output buffer with function alignment, and
// upgrade the section alignment if required
unsigned Align =
TM.getELFWriterInfo()->getFunctionAlignment(MF.getFunction());
// Get the function alignment in bytes
unsigned Align = (1 << MF.getAlignment());
// Align the section size with the function alignment, so the function can
// start in a aligned offset, also update the section alignment if needed.
if (ES->Align < Align) ES->Align = Align;
ES->Size = (ES->Size + (Align-1)) & (-Align);

10
lib/Target/TargetELFWriterInfo.cpp
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@ -24,13 +24,3 @@ TargetELFWriterInfo::TargetELFWriterInfo(TargetMachine &tm) : TM(tm) {
TargetELFWriterInfo::~TargetELFWriterInfo() {}
/// getFunctionAlignment - Returns the alignment for function 'F', targets
/// with different alignment constraints should overload this method
unsigned TargetELFWriterInfo::getFunctionAlignment(const Function *F) const {
const TargetData *TD = TM.getTargetData();
unsigned FnAlign = F->getAlignment();
unsigned TDAlign = TD->getPointerABIAlignment();
unsigned Align = std::max(FnAlign, TDAlign);
assert(!(Align & (Align-1)) && "Alignment is not a power of two!");
return Align;
}

12
lib/Target/X86/X86ELFWriterInfo.cpp
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@ -59,18 +59,6 @@ unsigned X86ELFWriterInfo::getRelocationType(unsigned MachineRelTy) const {
return 0;
}
unsigned X86ELFWriterInfo::getFunctionAlignment(const Function *F) const {
unsigned FnAlign = 4;
if (F->hasFnAttr(Attribute::OptimizeForSize))
FnAlign = 1;
if (F->getAlignment())
FnAlign = Log2_32(F->getAlignment());
return (1 << FnAlign);
}
long int X86ELFWriterInfo::getAddendForRelTy(unsigned RelTy) const {
if (is64Bit) {
switch(RelTy) {

4
lib/Target/X86/X86ELFWriterInfo.h
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@ -41,10 +41,6 @@ namespace llvm {
X86ELFWriterInfo(TargetMachine &TM);
virtual ~X86ELFWriterInfo();
/// getFunctionAlignment - Returns the alignment for function 'F', targets
/// with different alignment constraints should overload this method
virtual unsigned getFunctionAlignment(const Function *F) const;
/// getRelocationType - Returns the target specific ELF Relocation type.
/// 'MachineRelTy' contains the object code independent relocation type
virtual unsigned getRelocationType(unsigned MachineRelTy) const;