Strict mode delete.

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 057ac241c599653b53ff2ba5036fc4d032f32976..4a30d7cbb7be1553cc89789d5397dc2ca140c648 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -3888,7 +3888,9 @@ void LCodeGen::DoDeoptimize(LDeoptimize* instr) {
 void LCodeGen::DoDeleteProperty(LDeleteProperty* instr) {
   Register object = ToRegister(instr->object());
   Register key = ToRegister(instr->key());
-  __ Push(object, key);
+  Register strict = scratch0();
+  __ mov(strict, Operand(Smi::FromInt(strict_mode_flag())));
+  __ Push(object, key, strict);

[Martin Maly, 2011/02/14 05:15:22]

Not sure 100% about the use of scratch0() but saw it elsewhere.

[Mads Ager (chromium), 2011/02/14 10:27:24]

This is fine. scratch0() is always free to use in the arm lithium backend. It is
excluded from register allocation.

The Push instruction here cannot use stm anyway because object is r0 and key is
r1.

   ASSERT(instr->HasPointerMap() && instr->HasDeoptimizationEnvironment());
   LPointerMap* pointers = instr->pointer_map();
   LEnvironment* env = instr->deoptimization_environment();