Emit VMLA for multiply-add on ARM

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index 8c107d95f7f6e0f2d7f1179c164dafaa89f0af95..73946242e5bb556b3b6a2ae9f0fd64267fc5e145 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -1289,6 +1289,15 @@ void LCodeGen::DoDivI(LDivI* instr) {
 }
 
 
+void LCodeGen::DoMultiplyAdd(LMultiplyAdd* instr) {
+  DwVfpRegister a = ToDoubleRegister(instr->a()); // FIXME: Not sure this is correct..

[ulan_google, 2012/11/07 09:54:03]

Should we check for support of vmla here?
Otherwise, this looks correct.

+  DwVfpRegister b = ToDoubleRegister(instr->b());
+  DwVfpRegister c = ToDoubleRegister(instr->c());
+
+  __ vmla(c, a, b);
+}
+
+
 void LCodeGen::DoMathFloorOfDiv(LMathFloorOfDiv* instr) {
   const Register result = ToRegister(instr->result());
   const Register left = ToRegister(instr->left());