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| author | dim <dim@FreeBSD.org> | 2013-04-08 18:41:23 +0000 |
|---|---|---|
| committer | dim <dim@FreeBSD.org> | 2013-04-08 18:41:23 +0000 |
| commit | 169d2bd06003c39970bc94c99669a34b61bb7e45 (patch) | |
| tree | 06099edc18d30894081a822b756f117cbe0b8207 /lib/ExecutionEngine/JIT/JITEmitter.cpp | |
| parent | 0ac5f94c68a3d8fbd1380dbba26d891ea7816b5e (diff) | |
| download | FreeBSD-src-169d2bd06003c39970bc94c99669a34b61bb7e45.zip FreeBSD-src-169d2bd06003c39970bc94c99669a34b61bb7e45.tar.gz | |
Vendor import of llvm trunk r178860:
http://llvm.org/svn/llvm-project/llvm/trunk@178860
Diffstat (limited to 'lib/ExecutionEngine/JIT/JITEmitter.cpp')
| -rw-r--r-- | lib/ExecutionEngine/JIT/JITEmitter.cpp | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/lib/ExecutionEngine/JIT/JITEmitter.cpp b/lib/ExecutionEngine/JIT/JITEmitter.cpp index ecafda7..c273876 100644 --- a/lib/ExecutionEngine/JIT/JITEmitter.cpp +++ b/lib/ExecutionEngine/JIT/JITEmitter.cpp @@ -15,39 +15,39 @@ #define DEBUG_TYPE "jit" #include "JIT.h" #include "JITDwarfEmitter.h" +#include "llvm/ADT/DenseMap.h" #include "llvm/ADT/OwningPtr.h" -#include "llvm/Constants.h" -#include "llvm/DebugInfo.h" -#include "llvm/DerivedTypes.h" -#include "llvm/Module.h" +#include "llvm/ADT/SmallPtrSet.h" +#include "llvm/ADT/SmallVector.h" +#include "llvm/ADT/Statistic.h" +#include "llvm/ADT/ValueMap.h" #include "llvm/CodeGen/JITCodeEmitter.h" -#include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineCodeInfo.h" #include "llvm/CodeGen/MachineConstantPool.h" +#include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineJumpTableInfo.h" #include "llvm/CodeGen/MachineModuleInfo.h" #include "llvm/CodeGen/MachineRelocation.h" +#include "llvm/DebugInfo.h" #include "llvm/ExecutionEngine/GenericValue.h" #include "llvm/ExecutionEngine/JITEventListener.h" #include "llvm/ExecutionEngine/JITMemoryManager.h" -#include "llvm/DataLayout.h" -#include "llvm/Target/TargetInstrInfo.h" -#include "llvm/Target/TargetJITInfo.h" -#include "llvm/Target/TargetMachine.h" -#include "llvm/Target/TargetOptions.h" +#include "llvm/IR/Constants.h" +#include "llvm/IR/DataLayout.h" +#include "llvm/IR/DerivedTypes.h" +#include "llvm/IR/Module.h" #include "llvm/Support/Debug.h" +#include "llvm/Support/Disassembler.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/ManagedStatic.h" +#include "llvm/Support/Memory.h" #include "llvm/Support/MutexGuard.h" #include "llvm/Support/ValueHandle.h" #include "llvm/Support/raw_ostream.h" -#include "llvm/Support/Disassembler.h" -#include "llvm/Support/Memory.h" -#include "llvm/ADT/DenseMap.h" -#include "llvm/ADT/SmallPtrSet.h" -#include "llvm/ADT/SmallVector.h" -#include "llvm/ADT/Statistic.h" -#include "llvm/ADT/ValueMap.h" +#include "llvm/Target/TargetInstrInfo.h" +#include "llvm/Target/TargetJITInfo.h" +#include "llvm/Target/TargetMachine.h" +#include "llvm/Target/TargetOptions.h" #include <algorithm> #ifndef NDEBUG #include <iomanip> @@ -969,14 +969,24 @@ bool JITEmitter::finishFunction(MachineFunction &F) { SavedBufferBegin = BufferBegin; SavedBufferEnd = BufferEnd; SavedCurBufferPtr = CurBufferPtr; - - BufferBegin = CurBufferPtr = MemMgr->startExceptionTable(F.getFunction(), - ActualSize); - BufferEnd = BufferBegin+ActualSize; - EmittedFunctions[F.getFunction()].ExceptionTable = BufferBegin; - uint8_t *EhStart; - uint8_t *FrameRegister = DE->EmitDwarfTable(F, *this, FnStart, FnEnd, - EhStart); + uint8_t *FrameRegister; + + while (true) { + BufferBegin = CurBufferPtr = MemMgr->startExceptionTable(F.getFunction(), + ActualSize); + BufferEnd = BufferBegin+ActualSize; + EmittedFunctions[F.getFunction()].ExceptionTable = BufferBegin; + uint8_t *EhStart; + FrameRegister = DE->EmitDwarfTable(F, *this, FnStart, FnEnd, EhStart); + + // If the buffer was large enough to hold the table then we are done. + if (CurBufferPtr != BufferEnd) + break; + + // Try again with twice as much space. + ActualSize = (CurBufferPtr - BufferBegin) * 2; + MemMgr->deallocateExceptionTable(BufferBegin); + } MemMgr->endExceptionTable(F.getFunction(), BufferBegin, CurBufferPtr, FrameRegister); BufferBegin = SavedBufferBegin; |
