[Issue 6420] New: [CTFE] ICE on dereference-assigning to a pointer casted from a literal

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=6420

           Summary: [CTFE] ICE on dereference-assigning to a pointer
                    casted from a literal
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Mac OS X
            Status: NEW
          Keywords: ice-on-invalid-code
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: kennytm at gmail.com


--- Comment #0 from kennytm at gmail.com 2011-07-31 16:10:10 PDT ---
Test case:
--------------
static assert( {
    *cast(int*)45 = 1;
    return true;
}() );
--------------
CTFE internal error: unsupported assignment *45 = 1
Assertion failed: (e1->op == TOKarraylength || e1->op == TOKvar || e1->op ==
TOKdotvar || e1->op == TOKindex || e1->op == TOKslice), function
interpretAssignCommon, file interpret.c, line 3072.
Abort trap: 6
--------------

The compiler should just fail to compile instead of ICE-ing. The number literal
45 can be replaced by a string literal and it still ICE.



Test case 2:
-----------------------
static assert( {
    auto k = cast(int*)45;
    *k = 1;
    return true;
}() );
-----------------------
x.d(2): Error: CTFE internal error: illegal pointer value cast(int*)45u

Assertion failed: (isStackValueValid(newval)), function createStackValue, file
interpret.c, line 5165.
-----------------------

Test case 3:
-----------------------
static assert( {
    *cast(float*)"a" = 4.0;
    return true;
}() );
-----------------------
CTFE internal error: unsupported assignment *cast(float*)"a" = 4F
Assertion failed: (e1->op == TOKarraylength || e1->op == TOKvar || e1->op ==
TOKdotvar || e1->op == TOKindex || e1->op == TOKslice), function
interpretAssignCommon, file interpret.c, line 3072.
Abort trap: 6
-----------------------

(All test cases should *fail* to compile.)

-- 
Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email
------- You are receiving this mail because: -------