[Issue 9844] New: DMD (-m64) int->long conversion bug

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=9844

           Summary: DMD (-m64) int->long conversion bug
           Product: D
           Version: D2
          Platform: x86_64
        OS/Version: Linux
            Status: NEW
          Severity: blocker
          Priority: P5
         Component: DMD
        AssignedTo: nobody at puremagic.com
        ReportedBy: safety0ff.bugz at gmail.com


--- Comment #0 from safety0ff.bugz at gmail.com 2013-03-30 20:01:23 PDT ---
This program:
import std.stdio;
void main() {
    int a = -1;
    long b = a;
    long c = -1;
    writeln("a = ",a);
    writeln("b = ",b);
    writeln("c = ",c);
    assert(a==b&&b==c&&a==c);
}
Gives the following erroneous output:
a = -1
b = -1
c = 4294967295
core.exception.AssertError at buggy(9): Assertion failure

Using 64bit output from DMD 2.062 (also DMD git 6202b02f0e from DPaste.)

The following compilers/options give the expected output:
DMD 2.062 -m32
LDC 2.060 (64 bit on DPaste)
GDC 2.060 (64 bit on DPaste)

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