With revision r150587 this test passed.
>From revision r150588 and on, this test has failed as follows:
Running /tmp/r150587-150588/gcc/gcc/testsuite/gfortran.dg/dg.exp ...
...
FAIL: gfortran.dg/zero_sized_3.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
FAIL: gfortran.dg/zero_sized_3.f90 -O3 -fomit-frame-pointer -funroll-all-loops
-finline-functions execution test
With the message in the logfile being:
Executing on host:
/tmp/r150587-150588/gccobj/gcc/testsuite/gfortran/../../gfortran
-B/tmp/r150587-150588/gccobj/gcc/te\
stsuite/gfortran/../../
/tmp/r150587-150588/gcc/gcc/testsuite/gfortran.dg/zero_sized_3.f90 -O3
-fomit-frame-pointer -\
funroll-loops -pedantic-errors -isystem
/tmp/r150587-150588/gccobj/cris-elf/./newlib/targ-include -isystem /tmp/r15\
0587-150588/gcc/newlib/libc/include
-B/tmp/r150587-150588/gccobj/cris-elf/./libgloss/cris/
-L/tmp/r150587-150588/gccobj\
/cris-elf/./libgloss/cris -L/tmp/r150587-150588/gcc/libgloss/cris
-B/tmp/r150587-150588/gccobj/cris-elf/./newlib/ -L/t\
mp/r150587-150588/gccobj/cris-elf/./newlib -sim3
-B/tmp/r150587-150588/gccobj/cris-elf/./libgfortran/.libs -L/tmp/r150\
587-150588/gccobj/cris-elf/./libgfortran/.libs
-L/tmp/r150587-150588/gccobj/cris-elf/./libiberty -lm -o ./zero_sized\
_3.exe (timeout = 300)
PASS: gfortran.dg/zero_sized_3.f90 -O3 -fomit-frame-pointer -funroll-loops
(test for excess errors)
0 0^M
program stopped with signal 6.^M
FAIL: gfortran.dg/zero_sized_3.f90 -O3 -fomit-frame-pointer -funroll-loops
execution test
Author of patch exposing the regression CC:ed.
I'll try and analyze a bit so I can point out the wrong code.
N.B., CRIS has post-increment.
--
Summary: [4.5 Regression]: cris-elf gfortran.dg/zero_sized_3.f90
-O3 -funroll-loops execution
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hp at gcc dot gnu dot org
GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: cris-axis-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41087
