8360559: Optimize Math.sinh for x86 64 bit platforms

Mohamed Issa · Sandhya Viswanathan · commit 05f8a6fca87d · 2025-08-04T18:47:57.000Z
Reviewed-by: sviswanathan, sparasa
diff --git a/src/hotspot/cpu/arm/templateInterpreterGenerator_arm.cpp b/src/hotspot/cpu/arm/templateInterpreterGenerator_arm.cpp
@@ -174,6 +174,7 @@ address TemplateInterpreterGenerator::generate_math_entry(AbstractInterpreter::M
     break;
   case Interpreter::java_lang_math_fmaD:
   case Interpreter::java_lang_math_fmaF:
+  case Interpreter::java_lang_math_sinh:
   case Interpreter::java_lang_math_tanh:
   case Interpreter::java_lang_math_cbrt:
     // TODO: Implement intrinsic
diff --git a/src/hotspot/cpu/ppc/templateInterpreterGenerator_ppc.cpp b/src/hotspot/cpu/ppc/templateInterpreterGenerator_ppc.cpp
@@ -1089,6 +1089,7 @@ address TemplateInterpreterGenerator::generate_math_entry(AbstractInterpreter::M
     case Interpreter::java_lang_math_sin  : runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dsin);   break;
     case Interpreter::java_lang_math_cos  : runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dcos);   break;
     case Interpreter::java_lang_math_tan  : runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dtan);   break;
+    case Interpreter::java_lang_math_sinh : /* run interpreted */ break;
     case Interpreter::java_lang_math_tanh : /* run interpreted */ break;
     case Interpreter::java_lang_math_cbrt : /* run interpreted */ break;
     case Interpreter::java_lang_math_abs  : /* run interpreted */ break;
diff --git a/src/hotspot/cpu/s390/templateInterpreterGenerator_s390.cpp b/src/hotspot/cpu/s390/templateInterpreterGenerator_s390.cpp
@@ -1239,6 +1239,7 @@ address TemplateInterpreterGenerator::generate_math_entry(AbstractInterpreter::M
     case Interpreter::java_lang_math_sin  : runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dsin);   break;
     case Interpreter::java_lang_math_cos  : runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dcos);   break;
     case Interpreter::java_lang_math_tan  : runtime_entry = CAST_FROM_FN_PTR(address, SharedRuntime::dtan);   break;
+    case Interpreter::java_lang_math_sinh : /* run interpreted */ break;
     case Interpreter::java_lang_math_tanh : /* run interpreted */ break;
     case Interpreter::java_lang_math_cbrt : /* run interpreted */ break;
     case Interpreter::java_lang_math_abs  : /* run interpreted */ break;
diff --git a/src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp b/src/hotspot/cpu/x86/c1_LIRGenerator_x86.cpp
@@ -720,8 +720,8 @@ void LIRGenerator::do_MathIntrinsic(Intrinsic* x) {
   if (x->id() == vmIntrinsics::_dexp || x->id() == vmIntrinsics::_dlog ||
       x->id() == vmIntrinsics::_dpow || x->id() == vmIntrinsics::_dcos ||
       x->id() == vmIntrinsics::_dsin || x->id() == vmIntrinsics::_dtan ||
-      x->id() == vmIntrinsics::_dlog10 || x->id() == vmIntrinsics::_dtanh ||
-      x->id() == vmIntrinsics::_dcbrt
+      x->id() == vmIntrinsics::_dlog10 || x->id() == vmIntrinsics::_dsinh ||
+      x->id() == vmIntrinsics::_dtanh || x->id() == vmIntrinsics::_dcbrt
       ) {
     do_LibmIntrinsic(x);
     return;
@@ -835,6 +835,12 @@ void LIRGenerator::do_LibmIntrinsic(Intrinsic* x) {
         __ call_runtime_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::dtan), getThreadTemp(), result_reg, cc->args());
       }
       break;
+    case vmIntrinsics::_dsinh:
+      assert(StubRoutines::dsinh() != nullptr, "sinh intrinsic not found");
+      if (StubRoutines::dsinh() != nullptr) {
+        __ call_runtime_leaf(StubRoutines::dsinh(), getThreadTemp(), result_reg, cc->args());
+      }
+      break;
     case vmIntrinsics::_dtanh:
       assert(StubRoutines::dtanh() != nullptr, "tanh intrinsic not found");
       if (StubRoutines::dtanh() != nullptr) {
diff --git a/src/hotspot/cpu/x86/stubGenerator_x86_64.cpp b/src/hotspot/cpu/x86/stubGenerator_x86_64.cpp
@@ -3689,6 +3689,9 @@ void StubGenerator::generate_libm_stubs() {
     if (vmIntrinsics::is_intrinsic_available(vmIntrinsics::_dtan)) {
       StubRoutines::_dtan = generate_libmTan(); // from stubGenerator_x86_64_tan.cpp
     }
+    if (vmIntrinsics::is_intrinsic_available(vmIntrinsics::_dsinh)) {
+      StubRoutines::_dsinh = generate_libmSinh(); // from stubGenerator_x86_64_sinh.cpp
+    }
     if (vmIntrinsics::is_intrinsic_available(vmIntrinsics::_dtanh)) {
       StubRoutines::_dtanh = generate_libmTanh(); // from stubGenerator_x86_64_tanh.cpp
     }
diff --git a/src/hotspot/cpu/x86/stubGenerator_x86_64.hpp b/src/hotspot/cpu/x86/stubGenerator_x86_64.hpp
@@ -555,6 +555,7 @@ class StubGenerator: public StubCodeGenerator {
   address generate_libmSin();
   address generate_libmCos();
   address generate_libmTan();
+  address generate_libmSinh();
   address generate_libmTanh();
   address generate_libmCbrt();
   address generate_libmExp();
diff --git a/src/hotspot/cpu/x86/stubGenerator_x86_64_sinh.cpp b/src/hotspot/cpu/x86/stubGenerator_x86_64_sinh.cpp
diff --git a/src/hotspot/cpu/x86/templateInterpreterGenerator_x86_64.cpp b/src/hotspot/cpu/x86/templateInterpreterGenerator_x86_64.cpp
@@ -464,6 +464,13 @@ address TemplateInterpreterGenerator::generate_math_entry(AbstractInterpreter::M
     } else {
       __ call_VM_leaf0(CAST_FROM_FN_PTR(address, SharedRuntime::dtan));
     }
+  } else if (kind == Interpreter::java_lang_math_sinh) {
+    if (StubRoutines::dsinh() != nullptr) {
+      __ movdbl(xmm0, Address(rsp, wordSize));
+      __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::dsinh())));
+    } else {
+      return nullptr; // Fallback to default implementation
+    }
   } else if (kind == Interpreter::java_lang_math_tanh) {
     if (StubRoutines::dtanh() != nullptr) {
       __ movdbl(xmm0, Address(rsp, wordSize));
diff --git a/src/hotspot/share/c1/c1_Compiler.cpp b/src/hotspot/share/c1/c1_Compiler.cpp
@@ -166,6 +166,7 @@ bool Compiler::is_intrinsic_supported(vmIntrinsics::ID id) {
   case vmIntrinsics::_dcos:
   case vmIntrinsics::_dtan:
   #if defined(AMD64)
+  case vmIntrinsics::_dsinh:
   case vmIntrinsics::_dtanh:
   case vmIntrinsics::_dcbrt:
   #endif
diff --git a/src/hotspot/share/c1/c1_GraphBuilder.cpp b/src/hotspot/share/c1/c1_GraphBuilder.cpp
@@ -3296,6 +3296,7 @@ GraphBuilder::GraphBuilder(Compilation* compilation, IRScope* scope)
   case vmIntrinsics::_dsin          : // fall through
   case vmIntrinsics::_dcos          : // fall through
   case vmIntrinsics::_dtan          : // fall through
+  case vmIntrinsics::_dsinh         : // fall through
   case vmIntrinsics::_dtanh         : // fall through
   case vmIntrinsics::_dcbrt         : // fall through
   case vmIntrinsics::_dlog          : // fall through
diff --git a/src/hotspot/share/c1/c1_LIRGenerator.cpp b/src/hotspot/share/c1/c1_LIRGenerator.cpp
@@ -2865,6 +2865,7 @@ void LIRGenerator::do_Intrinsic(Intrinsic* x) {
   case vmIntrinsics::_dsqrt:          // fall through
   case vmIntrinsics::_dsqrt_strict:   // fall through
   case vmIntrinsics::_dtan:           // fall through
+  case vmIntrinsics::_dsinh:          // fall through
   case vmIntrinsics::_dtanh:          // fall through
   case vmIntrinsics::_dsin :          // fall through
   case vmIntrinsics::_dcos :          // fall through
diff --git a/src/hotspot/share/c1/c1_Runtime1.cpp b/src/hotspot/share/c1/c1_Runtime1.cpp
@@ -362,6 +362,7 @@ const char* Runtime1::name_for_address(address entry) {
   FUNCTION_CASE(entry, StubRoutines::dsin());
   FUNCTION_CASE(entry, StubRoutines::dcos());
   FUNCTION_CASE(entry, StubRoutines::dtan());
+  FUNCTION_CASE(entry, StubRoutines::dsinh());
   FUNCTION_CASE(entry, StubRoutines::dtanh());
   FUNCTION_CASE(entry, StubRoutines::dcbrt());
 
diff --git a/src/hotspot/share/classfile/vmIntrinsics.cpp b/src/hotspot/share/classfile/vmIntrinsics.cpp
@@ -91,6 +91,7 @@ bool vmIntrinsics::preserves_state(vmIntrinsics::ID id) {
   case vmIntrinsics::_dsin:
   case vmIntrinsics::_dcos:
   case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dsinh:
   case vmIntrinsics::_dtanh:
   case vmIntrinsics::_dcbrt:
   case vmIntrinsics::_dlog:
@@ -144,6 +145,7 @@ bool vmIntrinsics::can_trap(vmIntrinsics::ID id) {
   case vmIntrinsics::_dsin:
   case vmIntrinsics::_dcos:
   case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dsinh:
   case vmIntrinsics::_dtanh:
   case vmIntrinsics::_dcbrt:
   case vmIntrinsics::_dlog:
@@ -314,6 +316,7 @@ bool vmIntrinsics::disabled_by_jvm_flags(vmIntrinsics::ID id) {
   case vmIntrinsics::_fmaF:
     if (!InlineMathNatives || !UseFMA) return true;
     break;
+  case vmIntrinsics::_dsinh:
   case vmIntrinsics::_dtanh:
   case vmIntrinsics::_dcbrt:
     if (!InlineMathNatives || !InlineIntrinsics) return true;
diff --git a/src/hotspot/share/classfile/vmIntrinsics.hpp b/src/hotspot/share/classfile/vmIntrinsics.hpp
@@ -135,7 +135,8 @@ class methodHandle;
   do_name(log_name,"log")       do_name(log10_name,"log10")     do_name(pow_name,"pow")                                 \
   do_name(exp_name,"exp")       do_name(min_name,"min")         do_name(max_name,"max")                                 \
   do_name(floor_name, "floor")  do_name(ceil_name, "ceil")      do_name(rint_name, "rint")                              \
-  do_name(round_name, "round")  do_name(tanh_name,"tanh")       do_name(cbrt_name,"cbrt")                                                               \
+  do_name(round_name, "round")  do_name(sinh_name,"sinh")       do_name(tanh_name,"tanh")                               \
+  do_name(cbrt_name,"cbrt")                                                                                             \
                                                                                                                         \
   do_name(addExact_name,"addExact")                                                                                     \
   do_name(decrementExact_name,"decrementExact")                                                                         \
@@ -161,6 +162,7 @@ class methodHandle;
   do_intrinsic(_dcos,                     java_lang_Math,         cos_name,   double_double_signature,           F_S)   \
   do_intrinsic(_dtan,                     java_lang_Math,         tan_name,   double_double_signature,           F_S)   \
   do_intrinsic(_datan2,                   java_lang_Math,         atan2_name, double2_double_signature,          F_S)   \
+  do_intrinsic(_dsinh,                    java_lang_Math,         sinh_name,  double_double_signature,           F_S)   \
   do_intrinsic(_dtanh,                    java_lang_Math,         tanh_name,  double_double_signature,           F_S)   \
   do_intrinsic(_dcbrt,                    java_lang_Math,         cbrt_name,  double_double_signature,           F_S)   \
   do_intrinsic(_dsqrt,                    java_lang_Math,         sqrt_name,  double_double_signature,           F_S)   \
diff --git a/src/hotspot/share/interpreter/abstractInterpreter.cpp b/src/hotspot/share/interpreter/abstractInterpreter.cpp
@@ -137,6 +137,7 @@ AbstractInterpreter::MethodKind AbstractInterpreter::method_kind(const methodHan
       case vmIntrinsics::_dsin:              return java_lang_math_sin;
       case vmIntrinsics::_dcos:              return java_lang_math_cos;
       case vmIntrinsics::_dtan:              return java_lang_math_tan;
+      case vmIntrinsics::_dsinh:             return java_lang_math_sinh;
       case vmIntrinsics::_dtanh:             return java_lang_math_tanh;
       case vmIntrinsics::_dcbrt:             return java_lang_math_cbrt;
       case vmIntrinsics::_dabs:              return java_lang_math_abs;
@@ -199,6 +200,7 @@ vmIntrinsics::ID AbstractInterpreter::method_intrinsic(MethodKind kind) {
   case java_lang_math_sin         : return vmIntrinsics::_dsin;
   case java_lang_math_cos         : return vmIntrinsics::_dcos;
   case java_lang_math_tan         : return vmIntrinsics::_dtan;
+  case java_lang_math_sinh        : return vmIntrinsics::_dsinh;
   case java_lang_math_tanh        : return vmIntrinsics::_dtanh;
   case java_lang_math_cbrt        : return vmIntrinsics::_dcbrt;
   case java_lang_math_abs         : return vmIntrinsics::_dabs;
@@ -304,6 +306,7 @@ void AbstractInterpreter::print_method_kind(MethodKind kind) {
     case java_lang_math_sin     : tty->print("java_lang_math_sin"     ); break;
     case java_lang_math_cos     : tty->print("java_lang_math_cos"     ); break;
     case java_lang_math_tan     : tty->print("java_lang_math_tan"     ); break;
+    case java_lang_math_sinh    : tty->print("java_lang_math_sinh"    ); break;
     case java_lang_math_tanh    : tty->print("java_lang_math_tanh"    ); break;
     case java_lang_math_cbrt    : tty->print("java_lang_math_cbrt"    ); break;
     case java_lang_math_abs     : tty->print("java_lang_math_abs"     ); break;
diff --git a/src/hotspot/share/interpreter/abstractInterpreter.hpp b/src/hotspot/share/interpreter/abstractInterpreter.hpp
@@ -72,6 +72,7 @@ class AbstractInterpreter: AllStatic {
     java_lang_math_sin,                                         // implementation of java.lang.Math.sin   (x)
     java_lang_math_cos,                                         // implementation of java.lang.Math.cos   (x)
     java_lang_math_tan,                                         // implementation of java.lang.Math.tan   (x)
+    java_lang_math_sinh,                                        // implementation of java.lang.Math.sinh  (x)
     java_lang_math_tanh,                                        // implementation of java.lang.Math.tanh  (x)
     java_lang_math_cbrt,                                        // implementation of java.lang.Math.cbrt  (x)
     java_lang_math_abs,                                         // implementation of java.lang.Math.abs   (x)
@@ -152,6 +153,7 @@ class AbstractInterpreter: AllStatic {
       case vmIntrinsics::_dsin  : // fall thru
       case vmIntrinsics::_dcos  : // fall thru
       case vmIntrinsics::_dtan  : // fall thru
+      case vmIntrinsics::_dsinh : // fall thru
       case vmIntrinsics::_dtanh : // fall thru
       case vmIntrinsics::_dcbrt : // fall thru
       case vmIntrinsics::_dabs  : // fall thru
diff --git a/src/hotspot/share/interpreter/templateInterpreterGenerator.cpp b/src/hotspot/share/interpreter/templateInterpreterGenerator.cpp
@@ -193,6 +193,7 @@ void TemplateInterpreterGenerator::generate_all() {
   method_entry(java_lang_math_sin  )
   method_entry(java_lang_math_cos  )
   method_entry(java_lang_math_tan  )
+  method_entry(java_lang_math_sinh )
   method_entry(java_lang_math_tanh )
   method_entry(java_lang_math_cbrt )
   method_entry(java_lang_math_abs  )
@@ -454,6 +455,7 @@ address TemplateInterpreterGenerator::generate_intrinsic_entry(AbstractInterpret
   case Interpreter::java_lang_math_sin     : // fall thru
   case Interpreter::java_lang_math_cos     : // fall thru
   case Interpreter::java_lang_math_tan     : // fall thru
+  case Interpreter::java_lang_math_sinh    : // fall thru
   case Interpreter::java_lang_math_tanh    : // fall thru
   case Interpreter::java_lang_math_cbrt    : // fall thru
   case Interpreter::java_lang_math_abs     : // fall thru
diff --git a/src/hotspot/share/interpreter/zero/zeroInterpreterGenerator.cpp b/src/hotspot/share/interpreter/zero/zeroInterpreterGenerator.cpp
@@ -53,6 +53,7 @@ void ZeroInterpreterGenerator::generate_all() {
     method_entry(java_lang_math_sin   );
     method_entry(java_lang_math_cos   );
     method_entry(java_lang_math_tan   );
+    method_entry(java_lang_math_sinh  );
     method_entry(java_lang_math_tanh  );
     method_entry(java_lang_math_cbrt  );
     method_entry(java_lang_math_abs   );
@@ -96,6 +97,7 @@ address ZeroInterpreterGenerator::generate_method_entry(
   case Interpreter::java_lang_math_sin     : // fall thru
   case Interpreter::java_lang_math_cos     : // fall thru
   case Interpreter::java_lang_math_tan     : // fall thru
+  case Interpreter::java_lang_math_sinh    : // fall thru
   case Interpreter::java_lang_math_tanh    : // fall thru
   case Interpreter::java_lang_math_cbrt    : // fall thru
   case Interpreter::java_lang_math_abs     : // fall thru
diff --git a/src/hotspot/share/jvmci/jvmciCompilerToVM.hpp b/src/hotspot/share/jvmci/jvmciCompilerToVM.hpp
@@ -124,6 +124,7 @@ class CompilerToVM {
     static address dsin;
     static address dcos;
     static address dtan;
+    static address dsinh;
     static address dtanh;
     static address dcbrt;
     static address dexp;
diff --git a/src/hotspot/share/jvmci/jvmciCompilerToVMInit.cpp b/src/hotspot/share/jvmci/jvmciCompilerToVMInit.cpp
@@ -144,6 +144,7 @@ int CompilerToVM::Data::sizeof_ZStoreBarrierEntry = sizeof(ZStoreBarrierEntry);
 address CompilerToVM::Data::dsin;
 address CompilerToVM::Data::dcos;
 address CompilerToVM::Data::dtan;
+address CompilerToVM::Data::dsinh;
 address CompilerToVM::Data::dtanh;
 address CompilerToVM::Data::dcbrt;
 address CompilerToVM::Data::dexp;
@@ -289,6 +290,7 @@ void CompilerToVM::Data::initialize(JVMCI_TRAPS) {
     name = nullptr;                                             \
   }
 
+  SET_TRIGFUNC_OR_NULL(dsinh);
   SET_TRIGFUNC_OR_NULL(dtanh);
   SET_TRIGFUNC_OR_NULL(dcbrt);
   SET_TRIGFUNC_OR_NULL(crc_table_addr);
diff --git a/src/hotspot/share/jvmci/vmStructs_jvmci.cpp b/src/hotspot/share/jvmci/vmStructs_jvmci.cpp
@@ -141,6 +141,7 @@
   static_field(CompilerToVM::Data,             dsin,                                   address)                                      \
   static_field(CompilerToVM::Data,             dcos,                                   address)                                      \
   static_field(CompilerToVM::Data,             dtan,                                   address)                                      \
+  static_field(CompilerToVM::Data,             dsinh,                                  address)                                      \
   static_field(CompilerToVM::Data,             dtanh,                                  address)                                      \
   static_field(CompilerToVM::Data,             dcbrt,                                  address)                                      \
   static_field(CompilerToVM::Data,             dexp,                                   address)                                      \
diff --git a/src/hotspot/share/opto/c2compiler.cpp b/src/hotspot/share/opto/c2compiler.cpp
@@ -615,6 +615,7 @@ bool C2Compiler::is_intrinsic_supported(vmIntrinsics::ID id) {
   case vmIntrinsics::_dsin:
   case vmIntrinsics::_dcos:
   case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dsinh:
   case vmIntrinsics::_dtanh:
   case vmIntrinsics::_dcbrt:
   case vmIntrinsics::_dabs:
diff --git a/src/hotspot/share/opto/library_call.cpp b/src/hotspot/share/opto/library_call.cpp
@@ -245,6 +245,7 @@ bool LibraryCallKit::try_to_inline(int predicate) {
   case vmIntrinsics::_dsin:
   case vmIntrinsics::_dcos:
   case vmIntrinsics::_dtan:
+  case vmIntrinsics::_dsinh:
   case vmIntrinsics::_dtanh:
   case vmIntrinsics::_dcbrt:
   case vmIntrinsics::_dabs:
@@ -1886,6 +1887,9 @@ bool LibraryCallKit::inline_math_native(vmIntrinsics::ID id) {
     return StubRoutines::dtan() != nullptr ?
       runtime_math(OptoRuntime::Math_D_D_Type(), StubRoutines::dtan(), "dtan") :
       runtime_math(OptoRuntime::Math_D_D_Type(), CAST_FROM_FN_PTR(address, SharedRuntime::dtan), "TAN");
+  case vmIntrinsics::_dsinh:
+    return StubRoutines::dsinh() != nullptr ?
+      runtime_math(OptoRuntime::Math_D_D_Type(), StubRoutines::dsinh(), "dsinh") : false;
   case vmIntrinsics::_dtanh:
     return StubRoutines::dtanh() != nullptr ?
       runtime_math(OptoRuntime::Math_D_D_Type(), StubRoutines::dtanh(), "dtanh") : false;
diff --git a/src/hotspot/share/runtime/stubDeclarations.hpp b/src/hotspot/share/runtime/stubDeclarations.hpp
@@ -672,6 +672,8 @@
   do_entry(initial, dcos, dcos, dcos)                                   \
   do_stub(initial, dtan)                                                \
   do_entry(initial, dtan, dtan, dtan)                                   \
+  do_stub(initial, dsinh)                                               \
+  do_entry(initial, dsinh, dsinh, dsinh)                                \
   do_stub(initial, dtanh)                                               \
   do_entry(initial, dtanh, dtanh, dtanh)                                \
   do_stub(initial, dcbrt)                                               \
diff --git a/src/java.base/share/classes/java/lang/Math.java b/src/java.base/share/classes/java/lang/Math.java
@@ -2672,6 +2672,7 @@ public static float signum(float f) {
      * @return  The hyperbolic sine of {@code x}.
      * @since 1.5
      */
+    @IntrinsicCandidate
     public static double sinh(double x) {
         return StrictMath.sinh(x);
     }
diff --git a/test/micro/org/openjdk/bench/java/lang/SinhPerf.java b/test/micro/org/openjdk/bench/java/lang/SinhPerf.java

Original file line number	Diff line number	Diff line change
`@@ -3689,6 +3689,9 @@ void StubGenerator::generate_libm_stubs() {`
`3689`	`3689`	`if (vmIntrinsics::is_intrinsic_available(vmIntrinsics::_dtan)) {`
`3690`	`3690`	`StubRoutines::_dtan = generate_libmTan(); // from stubGenerator_x86_64_tan.cpp`
`3691`	`3691`	`}`
	`3692`	`+ if (vmIntrinsics::is_intrinsic_available(vmIntrinsics::_dsinh)) {`
	`3693`	`+ StubRoutines::_dsinh = generate_libmSinh(); // from stubGenerator_x86_64_sinh.cpp`
	`3694`	`+ }`
`3692`	`3695`	`if (vmIntrinsics::is_intrinsic_available(vmIntrinsics::_dtanh)) {`
`3693`	`3696`	`StubRoutines::_dtanh = generate_libmTanh(); // from stubGenerator_x86_64_tanh.cpp`
`3694`	`3697`	`}`