view gcc/testsuite/gfortran.dg/mvbits_1.f90 @ 152:2b5abeee2509

update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
parents 84e7813d76e9
children
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! { dg-do run }
! PR 25577
! MVBITS didn't work correctly for integer types wider than a C int
! The testcase is based on the one Dale Ranta posted in the bug report
implicit none
integer(1) i1,j1
integer(2) i2,j2
integer(4) i4,j4
integer(8) i8,j8
integer ibits,n

ibits=bit_size(1_1)
do n=1,ibits
   i1=-1
   call mvbits(1_1, 0,n,i1,0)
   j1=-1-2_1**n+2
   if(i1.ne.j1)STOP 1
enddo
ibits=bit_size(1_2)
do n=1,ibits
   i2=-1
   call mvbits(1_2, 0,n,i2,0)
   j2=-1-2_2**n+2
   if(i2.ne.j2)STOP 2
enddo
ibits=bit_size(1_4)
do n=1,ibits
   i4=-1
   call mvbits(1_4, 0,n,i4,0)
   j4=-1-2_4**n+2
   if(i4.ne.j4)STOP 3
enddo
ibits=bit_size(1_8)
do n=1,ibits
   i8=-1
   call mvbits(1_8, 0,n,i8,0)
   j8=-1-2_8**n+2
   if(i8.ne.j8)STOP 4
enddo
end