diff options
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64TargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64TargetMachine.cpp | 28 |
1 files changed, 2 insertions, 26 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp index 9faeb6feb6a..52ccc78fb62 100644 --- a/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp +++ b/llvm/lib/Target/AArch64/AArch64TargetMachine.cpp @@ -167,29 +167,6 @@ static std::string computeDataLayout(const Triple &TT, bool LittleEndian) { return "E-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"; } -// Helper function to set up the defaults for reciprocals. -static void initReciprocals(AArch64TargetMachine& TM, AArch64Subtarget& ST) -{ - // For the estimates, convergence is quadratic, so essentially the number of - // digits is doubled after each iteration. ARMv8, the minimum architected - // accuracy of the initial estimate is 2^-8. Therefore, the number of extra - // steps to refine the result for float (23 mantissa bits) and for double - // (52 mantissa bits) are 2 and 3, respectively. - unsigned ExtraStepsF = 2, - ExtraStepsD = ExtraStepsF + 1; - bool UseRsqrt = ST.useRSqrt(); - - TM.Options.Reciprocals.setDefaults("sqrtf", UseRsqrt, ExtraStepsF); - TM.Options.Reciprocals.setDefaults("sqrtd", UseRsqrt, ExtraStepsD); - TM.Options.Reciprocals.setDefaults("vec-sqrtf", UseRsqrt, ExtraStepsF); - TM.Options.Reciprocals.setDefaults("vec-sqrtd", UseRsqrt, ExtraStepsD); - - TM.Options.Reciprocals.setDefaults("divf", false, ExtraStepsF); - TM.Options.Reciprocals.setDefaults("divd", false, ExtraStepsD); - TM.Options.Reciprocals.setDefaults("vec-divf", false, ExtraStepsF); - TM.Options.Reciprocals.setDefaults("vec-divd", false, ExtraStepsD); -} - static Reloc::Model getEffectiveRelocModel(const Triple &TT, Optional<Reloc::Model> RM) { // AArch64 Darwin is always PIC. @@ -214,8 +191,7 @@ AArch64TargetMachine::AArch64TargetMachine( : LLVMTargetMachine(T, computeDataLayout(TT, LittleEndian), TT, CPU, FS, Options, getEffectiveRelocModel(TT, RM), CM, OL), TLOF(createTLOF(getTargetTriple())), - Subtarget(TT, CPU, FS, *this, LittleEndian) { - initReciprocals(*this, Subtarget); + isLittle(LittleEndian) { initAsmInfo(); } @@ -263,7 +239,7 @@ AArch64TargetMachine::getSubtargetImpl(const Function &F) const { // function that reside in TargetOptions. resetTargetOptions(F); I = llvm::make_unique<AArch64Subtarget>(TargetTriple, CPU, FS, *this, - Subtarget.isLittleEndian()); + isLittle); #ifndef LLVM_BUILD_GLOBAL_ISEL GISelAccessor *GISel = new GISelAccessor(); #else |
