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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2009-06-11 19:16:03 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2009-06-11 19:16:03 +0000 |
| commit | c997d45ae5d2e25643d3ccc2c4ae44dcca6cdf5b (patch) | |
| tree | bf08515a7ca0c2daa4a84208bb1074e5994e204e /lib/Target/X86 | |
| parent | 3590abfda093eb5b5e4536727d2e4195400b7716 (diff) | |
Support for ELF Visibility
Emission for globals, using the correct data sections
Function alignment can be computed for each target using TargetELFWriterInfo
Some small fixes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73201 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86')
| -rw-r--r-- | lib/Target/X86/X86ELFWriterInfo.cpp | 22 | ||||
| -rw-r--r-- | lib/Target/X86/X86ELFWriterInfo.h | 4 | ||||
| -rw-r--r-- | lib/Target/X86/X86TargetMachine.cpp | 3 |
3 files changed, 24 insertions, 5 deletions
diff --git a/lib/Target/X86/X86ELFWriterInfo.cpp b/lib/Target/X86/X86ELFWriterInfo.cpp index 260474160c..09c318513d 100644 --- a/lib/Target/X86/X86ELFWriterInfo.cpp +++ b/lib/Target/X86/X86ELFWriterInfo.cpp @@ -12,8 +12,26 @@ //===----------------------------------------------------------------------===// #include "X86ELFWriterInfo.h" +#include "llvm/Target/TargetMachine.h" +#include "llvm/DerivedTypes.h" using namespace llvm; -X86ELFWriterInfo::X86ELFWriterInfo(bool is64Bit) : - TargetELFWriterInfo(is64Bit ? EM_X86_64 : EM_386) {} +X86ELFWriterInfo::X86ELFWriterInfo(TargetMachine &TM) + : TargetELFWriterInfo(TM) { + bool is64Bit = TM.getTargetData()->getPointerSizeInBits() == 64; + EMachine = is64Bit ? EM_X86_64 : EM_386; + } + X86ELFWriterInfo::~X86ELFWriterInfo() {} + +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); +} diff --git a/lib/Target/X86/X86ELFWriterInfo.h b/lib/Target/X86/X86ELFWriterInfo.h index acfa50111d..e9c5bc45cb 100644 --- a/lib/Target/X86/X86ELFWriterInfo.h +++ b/lib/Target/X86/X86ELFWriterInfo.h @@ -20,8 +20,10 @@ namespace llvm { class X86ELFWriterInfo : public TargetELFWriterInfo { public: - X86ELFWriterInfo(bool is64Bit); + X86ELFWriterInfo(TargetMachine &TM); virtual ~X86ELFWriterInfo(); + + virtual unsigned getFunctionAlignment(const Function *F) const; }; } // end llvm namespace diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp index 88ab247b0d..dfb055ff78 100644 --- a/lib/Target/X86/X86TargetMachine.cpp +++ b/lib/Target/X86/X86TargetMachine.cpp @@ -133,8 +133,7 @@ X86TargetMachine::X86TargetMachine(const Module &M, const std::string &FS, DataLayout(Subtarget.getDataLayout()), FrameInfo(TargetFrameInfo::StackGrowsDown, Subtarget.getStackAlignment(), Subtarget.is64Bit() ? -8 : -4), - InstrInfo(*this), JITInfo(*this), TLInfo(*this), - ELFWriterInfo(Subtarget.is64Bit()) { + InstrInfo(*this), JITInfo(*this), TLInfo(*this), ELFWriterInfo(*this) { DefRelocModel = getRelocationModel(); // FIXME: Correctly select PIC model for Win64 stuff if (getRelocationModel() == Reloc::Default) { |