#ifndef LLVM_TARGET_TARGETOPTIONS_H
#define LLVM_TARGET_TARGETOPTIONS_H
+#include "llvm/Target/TargetRecip.h"
#include "llvm/MC/MCTargetOptions.h"
#include <string>
namespace llvm {
class MachineFunction;
+ class Module;
class StringRef;
- // Possible float ABI settings. Used with FloatABIType in TargetOptions.h.
namespace FloatABI {
enum ABIType {
- Default, // Target-specific (either soft or hard depending on triple,etc).
- Soft, // Soft float.
- Hard // Hard float.
+ Default, // Target-specific (either soft or hard depending on triple, etc).
+ Soft, // Soft float.
+ Hard // Hard float.
};
}
};
}
- enum class CFIntegrity {
- Sub, // Use subtraction-based checks.
- Ror, // Use rotation-based checks.
- Add // Use addition-based checks. This depends on having
- // sufficient alignment in the code and is usually not
- // feasible.
- };
-
class TargetOptions {
public:
TargetOptions()
- : PrintMachineCode(false), NoFramePointerElim(false),
+ : PrintMachineCode(false),
LessPreciseFPMADOption(false), UnsafeFPMath(false),
NoInfsFPMath(false), NoNaNsFPMath(false),
- HonorSignDependentRoundingFPMathOption(false), UseSoftFloat(false),
- NoZerosInBSS(false), JITEmitDebugInfo(false),
- JITEmitDebugInfoToDisk(false), GuaranteedTailCallOpt(false),
- DisableTailCalls(false), StackAlignmentOverride(0),
+ HonorSignDependentRoundingFPMathOption(false),
+ NoZerosInBSS(false),
+ GuaranteedTailCallOpt(false),
+ StackAlignmentOverride(0),
EnableFastISel(false), PositionIndependentExecutable(false),
UseInitArray(false), DisableIntegratedAS(false),
CompressDebugSections(false), FunctionSections(false),
DataSections(false), UniqueSectionNames(true), TrapUnreachable(false),
- TrapFuncName(), FloatABIType(FloatABI::Default),
- AllowFPOpFusion(FPOpFusion::Standard), JTType(JumpTable::Single),
- FCFI(false), ThreadModel(ThreadModel::POSIX),
- CFIType(CFIntegrity::Sub), CFIEnforcing(false), CFIFuncName() {}
+ EmulatedTLS(false), FloatABIType(FloatABI::Default),
+ AllowFPOpFusion(FPOpFusion::Standard), Reciprocals(TargetRecip()),
+ JTType(JumpTable::Single),
+ ThreadModel(ThreadModel::POSIX) {}
/// 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.
unsigned PrintMachineCode : 1;
- /// 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.
- unsigned NoFramePointerElim : 1;
-
/// DisableFramePointerElim - This returns true if frame pointer elimination
/// optimization should be disabled for the given machine function.
bool DisableFramePointerElim(const MachineFunction &MF) const;
unsigned HonorSignDependentRoundingFPMathOption : 1;
bool HonorSignDependentRoundingFPMath() const;
- /// 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.
- unsigned UseSoftFloat : 1;
-
/// NoZerosInBSS - By default some codegens place zero-initialized data to
/// .bss section. This flag disables such behaviour (necessary, e.g. for
/// crt*.o compiling).
unsigned NoZerosInBSS : 1;
- /// JITEmitDebugInfo - This flag indicates that the JIT should try to emit
- /// debug information and notify a debugger about it.
- unsigned JITEmitDebugInfo : 1;
-
- /// JITEmitDebugInfoToDisk - This flag indicates that the JIT should write
- /// the object files generated by the JITEmitDebugInfo flag to disk. This
- /// flag is hidden and is only for debugging the debug info.
- unsigned JITEmitDebugInfoToDisk : 1;
-
/// GuaranteedTailCallOpt - This flag is enabled when -tailcallopt is
/// specified on the commandline. When the flag is on, participating targets
/// will perform tail call optimization on all calls which use the fastcc
/// as their parent function, etc.), using an alternate ABI if necessary.
unsigned GuaranteedTailCallOpt : 1;
- /// DisableTailCalls - This flag controls whether we will use tail calls.
- /// Disabling them may be useful to maintain a correct call stack.
- unsigned DisableTailCalls : 1;
-
/// StackAlignmentOverride - Override default stack alignment for target.
unsigned StackAlignmentOverride;
/// Emit target-specific trap instruction for 'unreachable' IR instructions.
unsigned TrapUnreachable : 1;
- /// getTrapFunctionName - If this returns a non-empty string, this means
- /// isel should lower Intrinsic::trap to a call to the specified function
- /// name instead of an ISD::TRAP node.
- std::string TrapFuncName;
- StringRef getTrapFunctionName() const;
+ /// EmulatedTLS - This flag enables emulated TLS model, using emutls
+ /// function in the runtime library..
+ unsigned EmulatedTLS : 1;
/// FloatABIType - This setting is set by -float-abi=xxx option is specfied
/// on the command line. This setting may either be Default, Soft, or Hard.
/// the value of this option.
FPOpFusion::FPOpFusionMode AllowFPOpFusion;
+ /// This class encapsulates options for reciprocal-estimate code generation.
+ TargetRecip Reciprocals;
+
/// JTType - This flag specifies the type of jump-instruction table to
/// create for functions that have the jumptable attribute.
JumpTable::JumpTableType JTType;
- /// FCFI - This flags controls whether or not forward-edge control-flow
- /// integrity is applied.
- bool FCFI;
-
/// ThreadModel - This flag specifies the type of threading model to assume
/// for things like atomics
ThreadModel::Model ThreadModel;
- /// CFIType - This flag specifies the type of control-flow integrity check
- /// to add as a preamble to indirect calls.
- CFIntegrity CFIType;
-
- /// CFIEnforcing - This flags controls whether or not CFI violations cause
- /// the program to halt.
- bool CFIEnforcing;
-
- /// getCFIFuncName - If this returns a non-empty string, then this is the
- /// name of the function that will be called for each CFI violation in
- /// non-enforcing mode.
- std::string CFIFuncName;
- StringRef getCFIFuncName() const;
-
/// Machine level options.
MCTargetOptions MCOptions;
};
ARE_EQUAL(NoInfsFPMath) &&
ARE_EQUAL(NoNaNsFPMath) &&
ARE_EQUAL(HonorSignDependentRoundingFPMathOption) &&
- ARE_EQUAL(UseSoftFloat) &&
ARE_EQUAL(NoZerosInBSS) &&
- ARE_EQUAL(JITEmitDebugInfo) &&
- ARE_EQUAL(JITEmitDebugInfoToDisk) &&
ARE_EQUAL(GuaranteedTailCallOpt) &&
- ARE_EQUAL(DisableTailCalls) &&
ARE_EQUAL(StackAlignmentOverride) &&
ARE_EQUAL(EnableFastISel) &&
ARE_EQUAL(PositionIndependentExecutable) &&
ARE_EQUAL(UseInitArray) &&
ARE_EQUAL(TrapUnreachable) &&
- ARE_EQUAL(TrapFuncName) &&
+ ARE_EQUAL(EmulatedTLS) &&
ARE_EQUAL(FloatABIType) &&
ARE_EQUAL(AllowFPOpFusion) &&
+ ARE_EQUAL(Reciprocals) &&
ARE_EQUAL(JTType) &&
- ARE_EQUAL(FCFI) &&
ARE_EQUAL(ThreadModel) &&
- ARE_EQUAL(CFIType) &&
- ARE_EQUAL(CFIEnforcing) &&
- ARE_EQUAL(CFIFuncName) &&
ARE_EQUAL(MCOptions);
#undef ARE_EQUAL
}
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