[Mono-bugs] [Bug 379348] gmcs generates code that crashes mono with delegates and generic types

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https://bugzilla.novell.com/show_bug.cgi?id=379348

User rkumpera at novell.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=379348#c1





--- Comment #1 from Rodrigo Kumpera <rkumpera at novell.com>  2008-04-11 14:35:03 MST ---
Created an attachment (id=207576)
 --> (https://bugzilla.novell.com/attachment.cgi?id=207576)
Teste case

The attached test case will crash mono if compiled with gmcs, but will work
with csc. The difference between CSC and GMCS is in how the delegate is
constructed:

GMCS:
ldarg.0 
ldfld !0 class GenericClass`1<!0>::'field'
dup 
ldvirtftn instance string class [mscorlib]System.IFormattable::ToString(string,
class [mscorlib]System.IFormatProvider)
newobj instance void class ToStr::'.ctor'(object, native int)


CSC:
ldarg.0 
ldfld !0 class GenericClass`1<!0>::'field'
box !0 //<<<------
dup 
ldvirtftn instance string class [mscorlib]System.IFormattable::ToString(string,
class [mscorlib]System.IFormatProvider)
newobj instance void class ToStr::'.ctor'(object, native int)


Note that this extra box is completely harmless to performance for the
reference type expansion, as it must be a nop.


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