llvm-6502/include/llvm/Target/TargetOptions.h
Jim Laskey 1b340dc8e2 Flag to control exception handling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33628 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-29 20:48:32 +00:00

70 lines
2.9 KiB
C++

//===-- llvm/Target/TargetOptions.h - Target Options ------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines command line option flags that are shared across various
// targets.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TARGET_TARGETOPTIONS_H
#define LLVM_TARGET_TARGETOPTIONS_H
namespace llvm {
/// PrintMachineCode - This flag is enabled when the -print-machineinstrs
/// option is specified on the command line, and should enable debugging
/// output from the code generator.
extern bool PrintMachineCode;
/// NoFramePointerElim - This flag is enabled when the -disable-fp-elim is
/// specified on the command line. If the target supports the frame pointer
/// elimination optimization, this option should disable it.
extern bool NoFramePointerElim;
/// NoExcessFPPrecision - This flag is enabled when the
/// -disable-excess-fp-precision flag is specified on the command line. When
/// this flag is off (the default), the code generator is allowed to produce
/// results that are "more precise" than IEEE allows. This includes use of
/// FMA-like operations and use of the X86 FP registers without rounding all
/// over the place.
extern bool NoExcessFPPrecision;
/// UnsafeFPMath - This flag is enabled when the
/// -enable-unsafe-fp-math flag is specified on the command line. When
/// this flag is off (the default), the code generator is not allowed to
/// produce results that are "less precise" than IEEE allows. This includes
/// use of X86 instructions like FSIN and FCOS instead of libcalls.
/// UnsafeFPMath implies FiniteOnlyFPMath.
extern bool UnsafeFPMath;
/// FiniteOnlyFPMath - This returns true when the -enable-finite-only-fp-math
/// option is specified on the command line. If this returns false (default),
/// the code generator is not allowed to assume that FP arithmetic arguments
/// and results are never NaNs or +-Infs.
extern bool FiniteOnlyFPMathOption;
extern bool FiniteOnlyFPMath();
/// UseSoftFloat - This flag is enabled when the -soft-float flag is specified
/// on the command line. When this flag is on, the code generator will
/// generate libcalls to the software floating point library instead of
/// target FP instructions.
extern bool UseSoftFloat;
/// NoZerosInBSS - By default some codegens place zero-initialized data to
/// .bss section. This flag disables such behaviour (necessary, e.g. for
/// crt*.o compiling).
extern bool NoZerosInBSS;
/// ExceptionHandling - This flag indicates that exception information should
/// be emitted.
extern bool ExceptionHandling;
} // End llvm namespace
#endif