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* [Bug debug/54402] New: [4.8 Regression] var-tracking does not scale
@ 2012-08-29  9:48 steven at gcc dot gnu.org
  2012-08-29  9:50 ` [Bug debug/54402] " steven at gcc dot gnu.org
                   ` (37 more replies)
  0 siblings, 38 replies; 39+ messages in thread
From: steven at gcc dot gnu.org @ 2012-08-29  9:48 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54402

             Bug #: 54402
           Summary: [4.8 Regression] var-tracking does not scale
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: steven@gcc.gnu.org


A C test case for another var-tracking issue:

typedef struct astruct_d
{
  void *data;
} astruct;

/* Generate a whole bunch of unique fake mallocs, this
   keeps the vartrack dump simpler to understand (all
   the "size" arguments have a unique name).  */
#define DE0(X)                                          \
  void *malloc##X (unsigned long size##X);
#define DE1(X)                                          \
  DE0(X##0) DE0(X##1) DE0(X##2) DE0(X##3) DE0(X##4)     \
  DE0(X##5) DE0(X##6) DE0(X##7) DE0(X##8) DE0(X##9)
#define DE2(X)                                          \
  DE1(X##0) DE1(X##1) DE1(X##2) DE1(X##3) DE1(X##4)     \
  DE1(X##5) DE1(X##6) DE1(X##7) DE1(X##8) DE1(X##9)
#define DE3(X)                                          \
  DE2(X##0) DE2(X##1) DE2(X##2) DE2(X##3) DE2(X##4)     \
  DE2(X##5) DE2(X##6) DE2(X##7) DE2(X##8) DE2(X##9)
#define DE4(X)                                          \
  DE3(X##0) DE3(X##1) DE3(X##2) DE3(X##3) DE3(X##4)     \
  DE3(X##5) DE3(X##6) DE3(X##7) DE3(X##8) DE3(X##9)
DE4(0)
#undef DE0
#undef DE1
#undef DE2
#undef DE3
#undef DE4

void foo (void)
{
/* Now call all those mallocs and generate a series of
   variables while at it.  */
#define DE0(X)                                          \
  astruct *A##X = (astruct *) malloc##X(sizeof (astruct));
#define DE1(X)                                          \
  DE0(X##0) DE0(X##1) DE0(X##2) DE0(X##3) DE0(X##4)     \
  DE0(X##5) DE0(X##6) DE0(X##7) DE0(X##8) DE0(X##9)
#define DE2(X)                                          \
  DE1(X##0) DE1(X##1) DE1(X##2) DE1(X##3) DE1(X##4)     \
  DE1(X##5) DE1(X##6) DE1(X##7) DE1(X##8) DE1(X##9)
#define DE3(X)                                          \
  DE2(X##0) DE2(X##1) DE2(X##2) DE2(X##3) DE2(X##4)     \
  DE2(X##5) DE2(X##6) DE2(X##7) DE2(X##8) DE2(X##9)
#define DE4(X)                                          \
  DE3(X##0) DE3(X##1) DE3(X##2) DE3(X##3) DE3(X##4)     \
  DE3(X##5) DE3(X##6) DE3(X##7) DE3(X##8) DE3(X##9)
DE4(0)
DE4(1)
}

-->

 var-tracking dataflow   :  34.51 (33%) usr
 var-tracking emit       :  59.46 (57%) usr


^ permalink raw reply	[flat|nested] 39+ messages in thread
end of thread, other threads:[~2013-10-25 11:48 UTC | newest]

Thread overview: 39+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-08-29  9:48 [Bug debug/54402] New: [4.8 Regression] var-tracking does not scale steven at gcc dot gnu.org
2012-08-29  9:50 ` [Bug debug/54402] " steven at gcc dot gnu.org
2012-09-03 10:13 ` rguenth at gcc dot gnu.org
2012-10-05 17:57 ` markus at trippelsdorf dot de
2012-10-16 14:42 ` markus at trippelsdorf dot de
2012-10-16 18:38 ` markus at trippelsdorf dot de
2012-10-26 10:53 ` rsandifo at gcc dot gnu.org
2012-10-26 23:07 ` vmakarov at redhat dot com
2012-10-27  7:24 ` ubizjak at gmail dot com
2012-10-29  9:49 ` jakub at gcc dot gnu.org
2012-10-29 17:14 ` jakub at gcc dot gnu.org
2012-10-29 17:24 ` jakub at gcc dot gnu.org
2012-10-30 10:59 ` markus at trippelsdorf dot de
2012-10-30 11:25 ` markus at trippelsdorf dot de
2012-10-30 12:26 ` markus at trippelsdorf dot de
2012-10-30 18:24 ` jakub at gcc dot gnu.org
2012-11-05  7:59 ` jakub at gcc dot gnu.org
2012-12-06 16:42 ` rguenth at gcc dot gnu.org
2012-12-06 16:57 ` ro at CeBiTec dot Uni-Bielefeld.DE
2012-12-06 17:01 ` jakub at gcc dot gnu.org
2012-12-10 10:57 ` jakub at gcc dot gnu.org
2012-12-12 11:07 ` ro at CeBiTec dot Uni-Bielefeld.DE
2012-12-12 11:10 ` ro at gcc dot gnu.org
2012-12-12 22:10 ` jakub at gcc dot gnu.org
2012-12-12 22:22 ` jakub at gcc dot gnu.org
2012-12-12 22:30 ` jakub at gcc dot gnu.org
2012-12-13 13:12 ` ro at CeBiTec dot Uni-Bielefeld.DE
2012-12-24  0:37 ` jan.smets@alcatel-lucent.com
2013-01-03  8:52 ` jakub at gcc dot gnu.org
2013-01-18 11:01 ` aoliva at gcc dot gnu.org
2013-01-18 11:08 ` aoliva at gcc dot gnu.org
2013-01-21 10:07 ` ro at CeBiTec dot Uni-Bielefeld.DE
2013-01-23 16:49 ` rguenth at gcc dot gnu.org
2013-01-24 12:46 ` ro at CeBiTec dot Uni-Bielefeld.DE
2013-03-22 14:43 ` [Bug debug/54402] [4.8/4.9 " jakub at gcc dot gnu.org
2013-05-31 10:57 ` jakub at gcc dot gnu.org
2013-10-16  9:50 ` jakub at gcc dot gnu.org
2013-10-25 11:20 ` rguenth at gcc dot gnu.org
2013-10-25 11:48 ` rguenth at gcc dot gnu.org

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