mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-11-04 05:17:07 +00:00
92f4f16a19
disabled by default; I'll enable it when I hook it up with the llvm-gcc flag which controls it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63056 91177308-0d34-0410-b5e6-96231b3b80d8
117 lines
4.8 KiB
C++
117 lines
4.8 KiB
C++
//===-- llvm/Target/TargetOptions.h - Target Options ------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file 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;
|
|
|
|
/// UnwindTablesMandatory - This flag indicates that unwind tables should
|
|
/// be emitted for all functions.
|
|
extern bool UnwindTablesMandatory;
|
|
|
|
/// PerformTailCallOpt - This flag is enabled when -tailcallopt is specified
|
|
/// on the commandline. When the flag is on, the target will perform tail call
|
|
/// optimization (pop the caller's stack) providing it supports it.
|
|
extern bool PerformTailCallOpt;
|
|
|
|
/// StackAlignment - Override default stack alignment for target.
|
|
extern unsigned StackAlignment;
|
|
|
|
/// RealignStack - This flag indicates, whether stack should be automatically
|
|
/// realigned, if needed.
|
|
extern bool RealignStack;
|
|
|
|
/// VerboseAsm - When this flag is set, the asm printer prints additional
|
|
/// comments to asm directives.
|
|
extern bool VerboseAsm;
|
|
|
|
/// DisableJumpTables - This flag indicates jump tables should not be
|
|
/// generated.
|
|
extern bool DisableJumpTables;
|
|
|
|
/// FastISel - This flag enables fast-path instruction selection
|
|
/// which trades away generated code quality in favor of reducing
|
|
/// compile time.
|
|
extern bool EnableFastISel;
|
|
|
|
/// StrongPHIElim - This flag enables more aggressive PHI elimination
|
|
/// wth earlier copy coalescing.
|
|
extern bool StrongPHIElim;
|
|
|
|
/// DisableRedZone - This flag disables use of the "Red Zone" on
|
|
/// targets which would otherwise have one.
|
|
extern bool DisableRedZone;
|
|
|
|
} // End llvm namespace
|
|
|
|
#endif
|