/// pattern ISel if available.
extern int PatternISelTriState;
+ /// 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.
+ extern bool UnsafeFPMath;
} // End llvm namespace
#endif
bool NoFramePointerElim;
bool NoExcessFPPrecision;
int PatternISelTriState;
+ bool UnsafeFPMath;
};
namespace {
cl::opt<bool, true> PrintCode("print-machineinstrs",
cl::desc("sets the pattern ISel off(0), on(1), default(2)"),
cl::location(PatternISelTriState),
cl::init(2));
+ cl::opt<bool, true>
+ EnableUnsafeFPMath("enable-unsafe-fp-math",
+ cl::desc("Enable optimizations that may decrease FP precision"),
+ cl::location(UnsafeFPMath),
+ cl::init(false));
};
//---------------------------------------------------------------------------