[Bug lto/41915] New: FAIL: gcc.dg/torture/builtin-math-7.c -O2 -flto execution test

[Bug lto/41915] New: FAIL: gcc.dg/torture/builtin-math-7.c -O2 -flto execution test

[danglin at gcc dot gnu dot org]

Executing on host: /home/dave/gnu/gcc-4.5/objdir/gcc/xgcc
-B/home/dave/gnu/gcc-4
.5/objdir/gcc/
/home/dave/gnu/gcc-4.5/gcc/gcc/testsuite/gcc.dg/torture/builtin-m
ath-7.c   -O2 -flto    -lm   -o ./builtin-math-7.exe    (timeout = 300)
PASS: gcc.dg/torture/builtin-math-7.c  -O2 -flto  (test for excess errors)
Setting LD_LIBRARY_PATH to
:/home/dave/gnu/gcc-4.5/objdir/gcc::/home/dave/gnu/gc
c-4.5/objdir/gcc:/home/dave/gnu/gcc-4.5/objdir/hppa-linux/libstdc++-v3/.libs:/ho
me/dave/gnu/gcc-4.5/objdir/hppa-linux/libmudflap/.libs:/home/dave/gnu/gcc-4.5/ob
jdir/hppa-linux/libssp/.libs:/home/dave/gnu/gcc-4.5/objdir/hppa-linux/libgomp/.l
ibs:/home/dave/gnu/gcc-4.5/objdir/./gcc:/home/dave/gnu/gcc-4.5/objdir/./prev-gcc
FAIL: gcc.dg/torture/builtin-math-7.c  -O2 -flto  execution test
Executing on host: /home/dave/gnu/gcc-4.5/objdir/gcc/xgcc
-B/home/dave/gnu/gcc-4
.5/objdir/gcc/
/home/dave/gnu/gcc-4.5/gcc/gcc/testsuite/gcc.dg/torture/builtin-m
ath-7.c   -O2 -fwhopr    -lm   -o ./builtin-math-7.exe    (timeout = 300)
PASS: gcc.dg/torture/builtin-math-7.c  -O2 -fwhopr  (test for excess errors)
Setting LD_LIBRARY_PATH to
:/home/dave/gnu/gcc-4.5/objdir/gcc::/home/dave/gnu/gc
c-4.5/objdir/gcc:/home/dave/gnu/gcc-4.5/objdir/hppa-linux/libstdc++-v3/.libs:/ho
me/dave/gnu/gcc-4.5/objdir/hppa-linux/libmudflap/.libs:/home/dave/gnu/gcc-4.5/ob
jdir/hppa-linux/libssp/.libs:/home/dave/gnu/gcc-4.5/objdir/hppa-linux/libgomp/.l
ibs:/home/dave/gnu/gcc-4.5/objdir/./gcc:/home/dave/gnu/gcc-4.5/objdir/./prev-gcc
FAIL: gcc.dg/torture/builtin-math-7.c  -O2 -fwhopr  execution test

dave@hiauly6:~/gnu/gcc/objdir/gcc$ ./xgcc -B./ -v
Reading specs from ./specs
COLLECT_GCC=./xgcc
COLLECT_LTO_WRAPPER=./lto-wrapper
Target: hppa-linux
Configured with: ../gcc/configure --with-gnu-as --with-gnu-ld --enable-shared
--prefix=/home/dave/opt/gnu/gcc/gcc-4.5.0
--with-local-prefix=/home/dave/opt/gnu --enable-threads=posix
--enable-__cxa_atexit --build=hppa-linux --enable-clocale=gnu
--enable-java-gc=boehm --enable-java-awt=xlib
--enable-languages=c,c++,objc,fortran,obj-c++,java,ada
--with-libelf=/home/dave/opt/gnu
Thread model: posix
gcc version 4.5.0 20091102 (experimental) [trunk revision 153799] (GCC)


-- 
           Summary: FAIL: gcc.dg/torture/builtin-math-7.c  -O2 -flto
                    execution test
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: danglin at gcc dot gnu dot org
 GCC build triplet: hppa-unknown-linu-gnu
  GCC host triplet: hppa-unknown-linu-gnu
GCC target triplet: hppa-unknown-linu-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41915

[Bug lto/41915] FAIL: gcc.dg/torture/builtin-math-7.c -O2 -flto execution test

[danglin at gcc dot gnu dot org]

------- Comment #1 from danglin at gcc dot gnu dot org  2009-11-15 17:28 -------
also fails on hppa64-hp-hpux11.11.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41915

[Bug lto/41915] FAIL: gcc.dg/torture/builtin-math-7.c -O2 -flto execution test

[rguenth at gcc dot gnu dot org]

------- Comment #2 from rguenth at gcc dot gnu dot org  2009-12-11 11:49 -------
Confirmed.  Fails everywhere.

The issue is that flag_complex_method is not the same in lto1 compared to cc1
so we lower the complex multiplication differently.

The specific issue is that we fold

  D.2036_6 = __complex__ ( Inf, 0.0) * __complex__ (0.0, 1.0e+0);
  D.2035_7 = D.2036_6 * D.2036_6;

to

  D.2036_6 = COMPLEX_EXPR < Nan,  Inf>;
  D.2035_7 = COMPLEX_EXPR < Nan,  Nan>;

with -fcx-fortran-rules (flag_complex_method == 1).

So the particular issue is a middle-end one while the general
flag_complex_method issue remains.  In the end we need to move
flag_complex_method into the IL just like flag_wrapv.

I'm going to try fix the testcase at least.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2009-12-11 11:49:25
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41915

[Bug lto/41915] FAIL: gcc.dg/torture/builtin-math-7.c -O2 -flto execution test

[rguenth at gcc dot gnu dot org]

------- Comment #3 from rguenth at gcc dot gnu dot org  2009-12-11 14:49 -------
Fixed.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41915

[Bug lto/41915] FAIL: gcc.dg/torture/builtin-math-7.c -O2 -flto execution test

[rguenth at gcc dot gnu dot org]

------- Comment #4 from rguenth at gcc dot gnu dot org  2009-12-11 14:49 -------
Subject: Bug 41915

Author: rguenth
Date: Fri Dec 11 14:49:35 2009
New Revision: 155164

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155164
Log:
2009-12-11  Richard Guenther  <rguenther@suse.de>

        PR lto/41915
        * lto-lang.c (lto_init_options): Initialize flag_complex_method
        to the C99 default.  Do not set flag_unit_at_a_time.

Modified:
    trunk/gcc/lto/ChangeLog
    trunk/gcc/lto/lto-lang.c


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41915