mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-26 04:32:44 +01:00
80 lines
3.5 KiB
C++
80 lines
3.5 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();
|
|
|
|
/// HonorSignDependentRoundingFPMath - This returns true when the
|
|
/// -enable-sign-dependent-rounding-fp-math is specified. If this returns
|
|
/// false (the default), the code generator is allowed to assume that the
|
|
/// rounding behavior is the default (round-to-zero for all floating point to
|
|
/// integer conversions, and round-to-nearest for all other arithmetic
|
|
/// truncations). If this is enabled (set to true), the code generator must
|
|
/// assume that the rounding mode may dynamically change.
|
|
extern bool HonorSignDependentRoundingFPMathOption;
|
|
extern bool HonorSignDependentRoundingFPMath();
|
|
|
|
/// 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
|