• d-bugmail puremagic.com Nov 27 2008
• d-bugmail puremagic.com Jan 11 2009

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=2475

           Summary: -inline breaks man or boy
           Product: D
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: bugzilla digitalmars.com


Wed, 26 Nov 2008 17:02:54 -0500, bearophile wrote:

 While on DMD 1.036 the following code:
 
 // code #2
 import std.c.stdio: printf;
 
 int a(int k, lazy int x1, lazy int x2, lazy int x3, lazy int x4, lazy int x5) {
     int b() {
         k -= 1;
         return a(k, b(), x1, x2, x3, x4);
     }
     return k <= 0 ? x4 + x5 : b();
 }
 
 void main() {
     printf("%d\n", a(24, 1, -1, -1, 1, 0));
 }
 
 Outputs at compile time:
 
 man_or_boy2.d(6): delegate man_or_boy2.a.b.__dgliteral1 is a nested function
and cannot be accessed from a
 man_or_boy2.d(6): delegate man_or_boy2.a.b.__dgliteral2 is a nested function
and cannot be accessed from a
 man_or_boy2.d(6): delegate man_or_boy2.a.b.__dgliteral3 is a nested function
and cannot be accessed from a
 man_or_boy2.d(6): delegate man_or_boy2.a.b.__dgliteral4 is a nested function
and cannot be accessed from a
 man_or_boy2.d(6): delegate man_or_boy2.a.b.__dgliteral5 is a nested function
and cannot be accessed from a
 
 But this code works on the codepad site, that uses DMD v.1.026 (I think with
Tangobos), up to N=21 (then the site goes into timeout for safety):
 http://codepad.org/8GtKswm8




[snip]

 All the following compilations are done with and N=20 and:
 dmd -O -release -inline -L/STACK:1700000000 man_or_boy.d
 dmd -O -release -inline -L/STACK:1700000000 man_or_boy2.d




Remove -inline from your compiler options, and #2 compiles and runs
faster in both D1 and D2 than #1.

lazy seems to do something funny when -inline is in effect.


-- 

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=2475


smjg iname.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |smjg iname.com
             Status|NEW                         |RESOLVED
         Resolution|                            |DUPLICATE




------- Comment #1 from smjg iname.com  2009-01-11 16:47 -------
Not sure how this has stayed ignorant of 2474's existence for so long....

*** This bug has been marked as a duplicate of 2474 ***


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