#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.
};
}
};
}
+ namespace JumpTable {
+ enum JumpTableType {
+ Single, // Use a single table for all indirect jumptable calls.
+ Arity, // Use one table per number of function parameters.
+ Simplified, // Use one table per function type, with types projected
+ // into 4 types: pointer to non-function, struct,
+ // primitive, and function pointer.
+ Full // Use one table per unique function type
+ };
+ }
+
+ namespace ThreadModel {
+ enum Model {
+ POSIX, // POSIX Threads
+ Single // Single Threaded Environment
+ };
+ }
+
class TargetOptions {
public:
TargetOptions()
- : PrintMachineCode(false), NoFramePointerElim(false),
- NoFramePointerElimNonLeaf(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), RealignStack(true), SSPBufferSize(0),
+ : PrintMachineCode(false),
+ LessPreciseFPMADOption(false), UnsafeFPMath(false),
+ NoInfsFPMath(false), NoNaNsFPMath(false),
+ HonorSignDependentRoundingFPMathOption(false),
+ NoZerosInBSS(false),
+ GuaranteedTailCallOpt(false),
+ StackAlignmentOverride(0),
EnableFastISel(false), PositionIndependentExecutable(false),
- EnableSegmentedStacks(false), UseInitArray(false), TrapFuncName(""),
- FloatABIType(FloatABI::Default), AllowFPOpFusion(FPOpFusion::Standard)
- {}
+ UseInitArray(false), DisableIntegratedAS(false),
+ CompressDebugSections(false), FunctionSections(false),
+ DataSections(false), UniqueSectionNames(true), TrapUnreachable(false),
+ 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;
-
- /// NoFramePointerElimNonLeaf - This flag is enabled when the
- /// -disable-non-leaf-fp-elim is specified on the command line. If the
- /// target supports the frame pointer elimination optimization, this option
- /// should disable it for non-leaf functions.
- unsigned NoFramePointerElimNonLeaf : 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;
- /// RealignStack - This flag indicates whether the stack should be
- /// automatically realigned, if needed.
- unsigned RealignStack : 1;
-
- /// SSPBufferSize - The minimum size of buffers that will receive stack
- /// smashing protection when -fstack-protection is used.
- unsigned SSPBufferSize;
-
/// EnableFastISel - This flag enables fast-path instruction selection
/// which trades away generated code quality in favor of reducing
/// compile time.
/// if the relocation model is anything other than PIC.
unsigned PositionIndependentExecutable : 1;
- unsigned EnableSegmentedStacks : 1;
-
/// UseInitArray - Use .init_array instead of .ctors for static
/// constructors.
unsigned UseInitArray : 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;
+ /// Disable the integrated assembler.
+ unsigned DisableIntegratedAS : 1;
+
+ /// Compress DWARF debug sections.
+ unsigned CompressDebugSections : 1;
+
+ /// Emit functions into separate sections.
+ unsigned FunctionSections : 1;
+
+ /// Emit data into separate sections.
+ unsigned DataSections : 1;
+
+ unsigned UniqueSectionNames : 1;
+
+ /// Emit target-specific trap instruction for 'unreachable' IR instructions.
+ unsigned TrapUnreachable : 1;
+
+ /// 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.
/// Default selects the target's default behavior. Soft selects the ABI for
- /// UseSoftFloat, but does not indicate that FP hardware may not be used.
- /// Such a combination is unfortunately popular (e.g. arm-apple-darwin).
- /// Hard presumes that the normal FP ABI is used.
+ /// software floating point, but does not indicate that FP hardware may not
+ /// be used. Such a combination is unfortunately popular (e.g.
+ /// arm-apple-darwin). Hard presumes that the normal FP ABI is used.
FloatABI::ABIType FloatABIType;
/// AllowFPOpFusion - This flag is set by the -fuse-fp-ops=xxx option.
/// via the llvm.fma.* intrinsic) will always be honored, regardless of
/// 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;
+
+ /// ThreadModel - This flag specifies the type of threading model to assume
+ /// for things like atomics
+ ThreadModel::Model ThreadModel;
+
+ /// Machine level options.
+ MCTargetOptions MCOptions;
};
// Comparison operators:
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(RealignStack) &&
- ARE_EQUAL(SSPBufferSize) &&
ARE_EQUAL(EnableFastISel) &&
ARE_EQUAL(PositionIndependentExecutable) &&
- ARE_EQUAL(EnableSegmentedStacks) &&
ARE_EQUAL(UseInitArray) &&
- ARE_EQUAL(TrapFuncName) &&
+ ARE_EQUAL(TrapUnreachable) &&
+ ARE_EQUAL(EmulatedTLS) &&
ARE_EQUAL(FloatABIType) &&
- ARE_EQUAL(AllowFPOpFusion);
+ ARE_EQUAL(AllowFPOpFusion) &&
+ ARE_EQUAL(Reciprocals) &&
+ ARE_EQUAL(JTType) &&
+ ARE_EQUAL(ThreadModel) &&
+ ARE_EQUAL(MCOptions);
#undef ARE_EQUAL
}
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