//
// 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 is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// over the place.
extern bool NoExcessFPPrecision;
- /// PatternISelTriState - This flag is enabled when -pattern-isel=X is
- /// specified on the command line. The default value is 2, in which case the
- /// target chooses what is best for it. Setting X to 0 forces the use of
- /// a simple ISel if available, while setting it to 1 forces the use of a
- /// 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.
+ /// 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;
+
} // End llvm namespace
#endif