Add inline non-transcendental cache version of log to lithium.

src/ia32/lithium-ia32.cc

Index: src/ia32/lithium-ia32.cc
===================================================================
--- src/ia32/lithium-ia32.cc	(revision 7492)
+++ src/ia32/lithium-ia32.cc	(working copy)
@@ -1227,7 +1227,11 @@
   if (op == kMathLog || op == kMathSin || op == kMathCos) {
     LOperand* input = UseFixedDouble(instr->value(), xmm1);
     LUnaryMathOperation* result = new LUnaryMathOperation(input);
-    return MarkAsCall(DefineFixedDouble(result, xmm1), instr);
+    if (op == kMathLog) {

[fschneider, 2011/04/05 07:31:05]

You don't need a fixed register for MathLog either.

I'd rewrite the whole into one if-statement like

if (op == kMathLog) {
  ASSERT(instr->representation().IsDouble());
  ASSERT(instr->value()->representation().IsDouble());
  LOperand* input = UseRegisterAtStart(instr->value());
  LUnaryMathOperation* result =
    new LUnaryMathOperation(input);
  return DefineSameAsFirst(result);
} else if (op == kMathSin || op == kMathCos) {
  // As before...

} else {
  // As before...
}

+      return DefineFixedDouble(result, xmm1);
+    } else {
+      return MarkAsCall(DefineFixedDouble(result, xmm1), instr);
+    }
   } else {
     LOperand* input = UseRegisterAtStart(instr->value());
     LUnaryMathOperation* result = new LUnaryMathOperation(input);