Faster implementation of Math.exp()

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index 3e19c39ba24de278a78f128739f899402e46735a..388d4969dd67ea085861780be1e2f346e2872353 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -3609,6 +3609,16 @@ void LCodeGen::DoMathLog(LUnaryMathOperation* instr) {
 }
 
 
+void LCodeGen::DoMathExp(LMathExp* instr) {
+  XMMRegister input = ToDoubleRegister(instr->value());
+  XMMRegister result = ToDoubleRegister(instr->result());
+  Register temp1 = ToRegister(instr->temp1());
+  Register temp2 = ToRegister(instr->temp2());
+
+  MathExpGenerator::EmitMathExp(masm(), input, result, xmm0, temp1, temp2);
+}
+
+
 void LCodeGen::DoMathTan(LUnaryMathOperation* instr) {
   ASSERT(ToDoubleRegister(instr->result()).is(xmm1));
   TranscendentalCacheStub stub(TranscendentalCache::TAN,