static int AllocateSimpleClassesAndNECompareThem()
{
SimpleClassA a1 = new SimpleClassA(f1, f2);
SimpleClassA a2 = (f1 == 0) ? a1 : new SimpleClassA(f2, f1);
return((a1 != a2) ? 1 : 0);
}
static int AllocateSimpleClassAndAddFields()
{
SimpleClassA a = new SimpleClassA(f1, f2);
GC.Collect();
return(a.f1 + a.f2);
}
public static int Main()
{
AllocationKind expectedAllocationKind = AllocationKind.Stack;
if (GCStressEnabled())
{
Console.WriteLine("GCStress is enabled");
expectedAllocationKind = AllocationKind.Undefined;
}
else if (!SPCOptimizationsEnabled())
{
Console.WriteLine("System.Private.CoreLib.dll optimizations are disabled");
expectedAllocationKind = AllocationKind.Heap;
}
classA = new SimpleClassA(f1, f2);
classWithGCField = new SimpleClassWithGCField(f1, f2, null);
str0 = "str_zero";
str1 = "str_one";
str2 = "str_two";
str3 = "str_three";
str4 = "str_four";
CallTestAndVerifyAllocation(AllocateSimpleClassAndAddFields, 12, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassesAndEQCompareThem, 0, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassesAndNECompareThem, 1, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassAndGetField, 7, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateClassWithNestedStructAndGetField, 5, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateClassWithNestedStructAndAddFields, 24, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassAndCheckTypeNoHelper, 1, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassWithGCFieldAndAddFields, 12, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassAndAssignRefToAField, 12, expectedAllocationKind);
CallTestAndVerifyAllocation(TestMixOfReportingAndWriteBarriers, 34, expectedAllocationKind);
// The remaining tests currently never allocate on the stack
if (expectedAllocationKind == AllocationKind.Stack)
{
expectedAllocationKind = AllocationKind.Heap;
}
// This test calls CORINFO_HELP_ISINSTANCEOFCLASS
CallTestAndVerifyAllocation(AllocateSimpleClassAndCheckTypeHelper, 1, expectedAllocationKind);
// This test calls CORINFO_HELP_CHKCASTCLASS_SPECIAL
CallTestAndVerifyAllocation(AllocateSimpleClassAndCast, 7, expectedAllocationKind);
// Stack allocation of boxed structs is currently disabled
CallTestAndVerifyAllocation(BoxSimpleStructAndAddFields, 12, expectedAllocationKind);
return(methodResult);
}
static int AllocateSimpleClassAndGetField()
{
SimpleClassA a = new SimpleClassA(f1, f2);
GC.Collect();
ref int f = ref a.f2;
public static int Main()
{
AllocationKind expectedAllocationKind = AllocationKind.Stack;
if (GCStressEnabled())
{
Console.WriteLine("GCStress is enabled");
expectedAllocationKind = AllocationKind.Undefined;
}
else if (!SPCOptimizationsEnabled() && !Crossgen2Test())
{
Console.WriteLine("System.Private.CoreLib.dll optimizations are disabled");
expectedAllocationKind = AllocationKind.Heap;
}
classA = new SimpleClassA(f1, f2);
classWithGCField = new SimpleClassWithGCField(f1, f2, null);
str0 = "str_zero";
str1 = "str_one";
str2 = "str_two";
str3 = "str_three";
str4 = "str_four";
CallTestAndVerifyAllocation(AllocateSimpleClassAndAddFields, 12, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassesAndEQCompareThem, 0, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassesAndNECompareThem, 1, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassAndGetField, 7, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateClassWithNestedStructAndGetField, 5, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateClassWithNestedStructAndAddFields, 24, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassWithGCFieldAndAddFields, 12, expectedAllocationKind);
CallTestAndVerifyAllocation(AllocateSimpleClassAndAssignRefToAField, 12, expectedAllocationKind);
CallTestAndVerifyAllocation(TestMixOfReportingAndWriteBarriers, 34, expectedAllocationKind);
// The object is currently allocated on the stack when this method is jitted and on the heap when it's R2R-compiled.
// The reason is that we always do the type check via helper in R2R mode, which blocks stack allocation.
// We don't have to use a helper in this case (even for R2R), https://github.com/dotnet/coreclr/issues/22086 tracks fixing that.
CallTestAndVerifyAllocation(AllocateSimpleClassAndCheckTypeNoHelper, 1, AllocationKind.Undefined);
CallTestAndVerifyAllocation(AllocateClassWithGcFieldAndInt, 5, expectedAllocationKind);
// The remaining tests currently never allocate on the stack
if (expectedAllocationKind == AllocationKind.Stack)
{
expectedAllocationKind = AllocationKind.Heap;
}
// This test calls CORINFO_HELP_ISINSTANCEOFCLASS
CallTestAndVerifyAllocation(AllocateSimpleClassAndCheckTypeHelper, 1, expectedAllocationKind);
// This test calls CORINFO_HELP_CHKCASTCLASS_SPECIAL
CallTestAndVerifyAllocation(AllocateSimpleClassAndCast, 7, expectedAllocationKind);
// Stack allocation of boxed structs is currently disabled
CallTestAndVerifyAllocation(BoxSimpleStructAndAddFields, 12, expectedAllocationKind);
return(methodResult);
}