make doxygen comment much better. Patch by B. Scott Michel!

[oota-llvm.git] / include / llvm / Target / TargetOptions.h

diff --git a/include/llvm/Target/TargetOptions.h b/include/llvm/Target/TargetOptions.h
index b3668e2a1bcf84780fdeaab149fbe02e72e8d7fe..4d21b0b06030d7602b4317b32a510ebd51913459 100644 (file)
--- a/include/llvm/Target/TargetOptions.h
+++ b/include/llvm/Target/TargetOptions.h
@@ -1,10 +1,10 @@
 //===-- 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
@@ -25,6 +25,35 @@ namespace llvm {
   /// 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;
 } // End llvm namespace
 
 #endif