//
namespace llvm {
+ bool LessPreciseFPMADOption;
bool PrintMachineCode;
bool NoFramePointerElim;
bool NoExcessFPPrecision;
bool FiniteOnlyFPMathOption;
bool HonorSignDependentRoundingFPMathOption;
bool UseSoftFloat;
+ FloatABI::ABIType FloatABIType;
+ bool NoImplicitFloat;
bool NoZerosInBSS;
bool ExceptionHandling;
bool UnwindTablesMandatory;
bool PerformTailCallOpt;
unsigned StackAlignment;
bool RealignStack;
- bool VerboseAsm;
bool DisableJumpTables;
bool StrongPHIElim;
- bool DisableRedZone;
+ bool AsmVerbosityDefault(false);
}
-static cl::opt<bool, true> PrintCode("print-machineinstrs",
+static cl::opt<bool, true>
+PrintCode("print-machineinstrs",
cl::desc("Print generated machine code"),
cl::location(PrintMachineCode), cl::init(false));
-
static cl::opt<bool, true>
DisableFPElim("disable-fp-elim",
- cl::desc("Disable frame pointer elimination optimization"),
- cl::location(NoFramePointerElim),
- cl::init(false));
+ cl::desc("Disable frame pointer elimination optimization"),
+ cl::location(NoFramePointerElim),
+ cl::init(false));
static cl::opt<bool, true>
DisableExcessPrecision("disable-excess-fp-precision",
- cl::desc("Disable optimizations that may increase FP precision"),
- cl::location(NoExcessFPPrecision),
- cl::init(false));
+ cl::desc("Disable optimizations that may increase FP precision"),
+ cl::location(NoExcessFPPrecision),
+ cl::init(false));
+static cl::opt<bool, true>
+EnableFPMAD("enable-fp-mad",
+ cl::desc("Enable less precise MAD instructions to be generated"),
+ cl::location(LessPreciseFPMADOption),
+ cl::init(false));
static cl::opt<bool, true>
EnableUnsafeFPMath("enable-unsafe-fp-math",
- cl::desc("Enable optimizations that may decrease FP precision"),
- cl::location(UnsafeFPMath),
- cl::init(false));
+ cl::desc("Enable optimizations that may decrease FP precision"),
+ cl::location(UnsafeFPMath),
+ cl::init(false));
static cl::opt<bool, true>
EnableFiniteOnlyFPMath("enable-finite-only-fp-math",
- cl::desc("Enable optimizations that assumes non- NaNs / +-Infs"),
- cl::location(FiniteOnlyFPMathOption),
- cl::init(false));
+ cl::desc("Enable optimizations that assumes non- NaNs / +-Infs"),
+ cl::location(FiniteOnlyFPMathOption),
+ cl::init(false));
static cl::opt<bool, true>
-EnableHonorSignDependentRoundingFPMath(cl::Hidden,
- "enable-sign-dependent-rounding-fp-math",
- cl::desc("Force codegen to assume rounding mode can change dynamically"),
- cl::location(HonorSignDependentRoundingFPMathOption),
- cl::init(false));
-
+EnableHonorSignDependentRoundingFPMath("enable-sign-dependent-rounding-fp-math",
+ cl::Hidden,
+ cl::desc("Force codegen to assume rounding mode can change dynamically"),
+ cl::location(HonorSignDependentRoundingFPMathOption),
+ cl::init(false));
static cl::opt<bool, true>
GenerateSoftFloatCalls("soft-float",
- cl::desc("Generate software floating point library calls"),
- cl::location(UseSoftFloat),
- cl::init(false));
+ cl::desc("Generate software floating point library calls"),
+ cl::location(UseSoftFloat),
+ cl::init(false));
+static cl::opt<llvm::FloatABI::ABIType, true>
+FloatABIForCalls("float-abi",
+ cl::desc("Choose float ABI type"),
+ cl::location(FloatABIType),
+ cl::init(FloatABI::Default),
+ cl::values(
+ clEnumValN(FloatABI::Default, "default",
+ "Target default float ABI type"),
+ clEnumValN(FloatABI::Soft, "soft",
+ "Soft float ABI (implied by -soft-float)"),
+ clEnumValN(FloatABI::Hard, "hard",
+ "Hard float ABI (uses FP registers)"),
+ clEnumValEnd));
static cl::opt<bool, true>
DontPlaceZerosInBSS("nozero-initialized-in-bss",
- cl::desc("Don't place zero-initialized symbols into bss section"),
- cl::location(NoZerosInBSS),
- cl::init(false));
+ cl::desc("Don't place zero-initialized symbols into bss section"),
+ cl::location(NoZerosInBSS),
+ cl::init(false));
static cl::opt<bool, true>
EnableExceptionHandling("enable-eh",
- cl::desc("Emit DWARF exception handling (default if target supports)"),
- cl::location(ExceptionHandling),
- cl::init(false));
+ cl::desc("Emit DWARF exception handling (default if target supports)"),
+ cl::location(ExceptionHandling),
+ cl::init(false));
static cl::opt<bool, true>
EnableUnwindTables("unwind-tables",
- cl::desc("Generate unwinding tables for all functions"),
- cl::location(UnwindTablesMandatory),
- cl::init(false));
+ cl::desc("Generate unwinding tables for all functions"),
+ cl::location(UnwindTablesMandatory),
+ cl::init(false));
static cl::opt<llvm::Reloc::Model, true>
-DefRelocationModel(
- "relocation-model",
+DefRelocationModel("relocation-model",
cl::desc("Choose relocation model"),
cl::location(RelocationModel),
cl::init(Reloc::Default),
"Relocatable external references, non-relocatable code"),
clEnumValEnd));
static cl::opt<llvm::CodeModel::Model, true>
-DefCodeModel(
- "code-model",
+DefCodeModel("code-model",
cl::desc("Choose code model"),
cl::location(CMModel),
cl::init(CodeModel::Default),
clEnumValN(CodeModel::Large, "large",
"Large code model"),
clEnumValEnd));
-
static cl::opt<bool, true>
EnablePerformTailCallOpt("tailcallopt",
- cl::desc("Turn on tail call optimization."),
- cl::location(PerformTailCallOpt),
- cl::init(false));
-
+ cl::desc("Turn on tail call optimization."),
+ cl::location(PerformTailCallOpt),
+ cl::init(false));
static cl::opt<unsigned, true>
OverrideStackAlignment("stack-alignment",
- cl::desc("Override default stack alignment"),
- cl::location(StackAlignment),
- cl::init(0));
-
+ cl::desc("Override default stack alignment"),
+ cl::location(StackAlignment),
+ cl::init(0));
static cl::opt<bool, true>
EnableRealignStack("realign-stack",
- cl::desc("Realign stack if needed"),
- cl::location(RealignStack),
- cl::init(true));
-
-static cl::opt<bool, true>
-AsmVerbose("asm-verbose", cl::desc("Add comments to directives."),
- cl::location(VerboseAsm),
- cl::init(false));
-
+ cl::desc("Realign stack if needed"),
+ cl::location(RealignStack),
+ cl::init(true));
static cl::opt<bool, true>
DisableSwitchTables(cl::Hidden, "disable-jump-tables",
- cl::desc("Do not generate jump tables."),
- cl::location(DisableJumpTables),
- cl::init(false));
-
+ cl::desc("Do not generate jump tables."),
+ cl::location(DisableJumpTables),
+ cl::init(false));
static cl::opt<bool, true>
EnableStrongPHIElim(cl::Hidden, "strong-phi-elim",
- cl::desc("Use strong PHI elimination."),
- cl::location(StrongPHIElim),
- cl::init(false));
-
-static cl::opt<bool, true>
-DisableRedZoneOption("disable-red-zone",
- cl::desc("Do not emit code that uses the red zone."),
- cl::location(DisableRedZone),
- cl::init(false));
+ cl::desc("Use strong PHI elimination."),
+ cl::location(StrongPHIElim),
+ cl::init(false));
//---------------------------------------------------------------------------
// TargetMachine Class
//
+TargetMachine::TargetMachine()
+ : AsmInfo(0) {
+ // Typically it will be subtargets that will adjust FloatABIType from Default
+ // to Soft or Hard.
+ if (UseSoftFloat)
+ FloatABIType = FloatABI::Soft;
+}
+
TargetMachine::~TargetMachine() {
delete AsmInfo;
}
CMModel = Model;
}
+bool TargetMachine::getAsmVerbosityDefault() {
+ return AsmVerbosityDefault;
+}
+
+void TargetMachine::setAsmVerbosityDefault(bool V) {
+ AsmVerbosityDefault = V;
+}
+
namespace llvm {
+ /// LessPreciseFPMAD - This flag return true when -enable-fp-mad option
+ /// is specified on the command line. When this flag is off(default), the
+ /// code generator is not allowed to generate mad (multiply add) if the
+ /// result is "less precise" than doing those operations individually.
+ bool LessPreciseFPMAD() { return UnsafeFPMath || LessPreciseFPMADOption; }
+
/// 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
projects / oota-llvm.git / blobdiff