LLVM API Documentation
00001 //===-- llvm/Target/TargetOptions.h - Target Options ------------*- C++ -*-===// 00002 // 00003 // The LLVM Compiler Infrastructure 00004 // 00005 // This file was developed by the LLVM research group and is distributed under 00006 // the University of Illinois Open Source License. See LICENSE.TXT for details. 00007 // 00008 //===----------------------------------------------------------------------===// 00009 // 00010 // This file defines command line option flags that are shared across various 00011 // targets. 00012 // 00013 //===----------------------------------------------------------------------===// 00014 00015 #ifndef LLVM_TARGET_TARGETOPTIONS_H 00016 #define LLVM_TARGET_TARGETOPTIONS_H 00017 00018 namespace llvm { 00019 /// PrintMachineCode - This flag is enabled when the -print-machineinstrs 00020 /// option is specified on the command line, and should enable debugging 00021 /// output from the code generator. 00022 extern bool PrintMachineCode; 00023 00024 /// NoFramePointerElim - This flag is enabled when the -disable-fp-elim is 00025 /// specified on the command line. If the target supports the frame pointer 00026 /// elimination optimization, this option should disable it. 00027 extern bool NoFramePointerElim; 00028 00029 /// NoExcessFPPrecision - This flag is enabled when the 00030 /// -disable-excess-fp-precision flag is specified on the command line. When 00031 /// this flag is off (the default), the code generator is allowed to produce 00032 /// results that are "more precise" than IEEE allows. This includes use of 00033 /// FMA-like operations and use of the X86 FP registers without rounding all 00034 /// over the place. 00035 extern bool NoExcessFPPrecision; 00036 00037 /// UnsafeFPMath - This flag is enabled when the 00038 /// -enable-unsafe-fp-math flag is specified on the command line. When 00039 /// this flag is off (the default), the code generator is not allowed to 00040 /// produce results that are "less precise" than IEEE allows. This includes 00041 /// use of X86 instructions like FSIN and FCOS instead of libcalls. 00042 extern bool UnsafeFPMath; 00043 } // End llvm namespace 00044 00045 #endif