// In this test twoInts is passed to Caller2 on the stack. Then twoInts.Value1 and twoInts.Value2 were passed to Callee2 in registers.
// Since Calee2 also has a stack argument (i3) and the call is dispatched as a fast tail call,
// it's set up in the incoming argument area of Caller2. JIT lowering code needs to ensure that twoInts
// in that area is not overwritten by i3 before twoInts.Value1 and twoInts.Value2 are computed. The JIT had a bug in that code
// because twoInts.Value1 and twoInts.Value2 were represented as GT_LCL_FLD and they were incorrectly converted into GT_LCL_VAR
// resulting in an identical value passed for both fields.
public static bool Caller2(object parameters, long l,
double doubleArg, TypedDouble typedDouble1, TwoInts twoInts, TypedDouble typedDouble3)
{
double param = 19.0;
Console.Write("Let's ");
Console.Write("Discourage ");
Console.Write("Inlining ");
Console.Write("Of ");
Console.Write("Caller ");
Console.Write("Into ");
Console.WriteLine("Main.");
return(Callee2(twoInts.Value1, twoInts.Value2, typedDouble1.Value, param, 11));
}
// In this test typedDouble2 is passed to Caller1 on the stack. Then typedDouble2.Value is passed to Callee1 in a register.
// Since Calee1 also has a stack argument (typedDouble3.Value) and the call is dispatched as a fast tail call,
// it's set up in the incoming argument area of Caller1. JIT lowering code needs to ensure that typedDouble2
// in that area is not overwritten by typedDouble3.Value before typedDouble2.Value is computed. The JIT had a bug in that code
// because typedDouble2.Value was represented as GT_LCL_FLD and it was incorrectly converted into GT_LCL_VAR resulting in type
// mismatches (long vs. double since the struct is passed as a long but its only field is double).
public static bool Caller1(object parameters, long l,
double doubleArg, TypedDouble typedDouble1, TypedDouble typedDouble2, TypedDouble typedDouble3)
{
double param = 19.0;
Console.Write("Let's ");
Console.Write("Discourage ");
Console.Write("Inlining ");
Console.Write("Of ");
Console.Write("Caller ");
Console.Write("Into ");
Console.WriteLine("Main.");
return(Callee1(doubleArg, param, typedDouble1.Value, typedDouble2.Value, typedDouble3.Value));
}
