http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55021
Bug #: 55021
Summary: [4.8 Regression] The tests
gfortran.dg/integer_exponentiation_5.F90 and
masklr_1.F90 are miscompiled with -flto after revision
192529
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: domi...@lps.ens.fr
CC: rgue...@gcc.gnu.org
The tests gfortran.dg/integer_exponentiation_5.F90 (with -O1) and masklr_1.F90
are miscompiled with -flto after revision 192529 (r192528 is OK):
[macbook] f90/bug% /opt/gcc/gcc4.8p-192559/bin/gfortran
/opt/gcc/work/gcc/testsuite/gfortran.dg/integer_exponentiation_5.F90
-fno-range-check -O1 -flto
[macbook] f90/bug% a.out
Backtrace for this error:
#0 0x1000041ae
#1 0x100004536
#2 0x1000d6108
#3 0x100000c19
#4 0x100000cd5
Abort
[macbook] f90/bug% /opt/gcc/gcc4.8p-192559/bin/gfortran
/opt/gcc/work/gcc/testsuite/gfortran.dg/masklr_1.F90 -ffree-line-length-none
-flto
[macbook] f90/bug% a.out
Backtrace for this error:
#0 0x1000051ae
#1 0x100005536
#2 0x1000d7108
#3 0x100001b33
#4 0x100001cff
Abort
Reduced test case
module mod_check
implicit none
contains
subroutine check_i8 (a, b)
integer(kind=8), intent(in) :: a, b
if (a /= b) call abort()
end subroutine check_i8
end module mod_check
program test
use mod_check
implicit none
integer(kind=8) :: i8
i8 = 3_8
call check_i8(i8**43_8,3_8**43_8)
end program test
