http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46665
Summary: two gfortran tests fail with -O[2s] -fipa-pta
-fno-tree-ccp -fno-tree-forwprop
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
The failing tests are:
gfortran.dg/array_alloc_3.f90
gfortran.dg/char_reshape_1.f90
In both cases, the flags are:
-O[2s] -fipa-pta -fno-tree-ccp -fno-tree-forwprop
or
-O1 -fipa-pta -fschedule-insns -fstrict-overflow -fno-tree-ccp
-fno-tree-forwprop
, while array_alloc_3.f90 fails further with:
Output:
$ gfortran char_reshape_1.f90 -O2 -fipa-pta -fno-tree-ccp -fno-tree-forwprop -g
&& valgrind -q ./a.out
==5108== Conditional jump or move depends on uninitialised value(s)
==5108== at 0x400C0D: MAIN__ (char_reshape_1.f90:24)
==5108== by 0x400DA2: main (char_reshape_1.f90:17)
==5108==
Aborted
$ gfortran char_reshape_1.f90 -O1 -fipa-pta -fschedule-insns -fstrict-overflow
-fno-tree-ccp -fno-tree-forwprop -g && valgrind -q ./a.out
==8736== Conditional jump or move depends on uninitialised value(s)
==8736== at 0x400C14: MAIN__ (char_reshape_1.f90:24)
==8736== by 0x400E69: main (char_reshape_1.f90:17)
==8736==
Aborted
$ gfortran array_alloc_3.f90 -O2 -fipa-pta -fno-tree-ccp -fno-tree-forwprop -g
&& valgrind -q ./a.out
==7327== Conditional jump or move depends on uninitialised value(s)
==7327== at 0x400A4E: main (array_alloc_3.f90:12)
==7327==
Aborted
$ gfortran array_alloc_3.f90 -O1 -fipa-pta -fschedule-insns -fstrict-overflow
-fno-tree-ccp -fno-tree-forwprop -g && valgrind -q ./a.out
==9570== Conditional jump or move depends on uninitialised value(s)
==9570== at 0x400A43: main (array_alloc_3.f90:12)
==9570==
Aborted
Tested revisions:
r167147 - fail
r165699 - fail
r161659 - OK
