X87: [builtins] Unify Atanh, Cbrt and Expm1 as exports from flibm.

  port 4d4eb611 (r37058)

  original commit message:

BUG=

Review-Url: https://codereview.chromium.org/2097323002
Cr-Commit-Position: refs/heads/master@{#37277}

src/compiler/x87/code-generator-x87.cc

@@ -757,6 +757,9 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
     case kIeee754Float64Exp:
       ASSEMBLE_IEEE754_UNOP(exp);
       break;
+    case kIeee754Float64Atanh:
+      ASSEMBLE_IEEE754_UNOP(atanh);
+      break;
     case kIeee754Float64Log:
       ASSEMBLE_IEEE754_UNOP(log);
       break;
@@ -769,6 +772,12 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
     case kIeee754Float64Log10:
       ASSEMBLE_IEEE754_UNOP(log10);
       break;
+    case kIeee754Float64Cbrt:
+      ASSEMBLE_IEEE754_UNOP(cbrt);
+      break;
+    case kIeee754Float64Expm1:
+      ASSEMBLE_IEEE754_UNOP(expm1);
+      break;
     case kX87Add:
       if (HasImmediateInput(instr, 1)) {
         __ add(i.InputOperand(0), i.InputImmediate(1));