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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/mvbits_1.f90
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Diffstat (limited to 'gcc/testsuite/gfortran.dg/mvbits_1.f90')
-rw-r--r--gcc/testsuite/gfortran.dg/mvbits_1.f9039
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/mvbits_1.f90 b/gcc/testsuite/gfortran.dg/mvbits_1.f90
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+! 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)call abort
+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)call abort
+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)call abort
+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)call abort
+enddo
+end