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Diffstat (limited to 'gcc/testsuite/gfortran.dg/assign_10.f90')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/assign_10.f90 | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/assign_10.f90 b/gcc/testsuite/gfortran.dg/assign_10.f90 new file mode 100644 index 000000000..e52302556 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/assign_10.f90 @@ -0,0 +1,28 @@ +! { dg-do run } +! { dg-options "-O3 -fdump-tree-original" } +! Tests the fix for PR33850, in which one of the two assignments +! below would produce an unnecessary temporary for the index +! expression, following the fix for PR33749. +! +! Contributed by Dick Hendrickson on comp.lang.fortran, +! " Most elegant syntax for inverting a permutation?" 20071006 +! + integer(4) :: p4(4) = (/2,4,1,3/) + integer(4) :: q4(4) = (/2,4,1,3/) + integer(8) :: p8(4) = (/2,4,1,3/) + integer(8) :: q8(4) = (/2,4,1,3/) + p4(q4) = (/(i, i = 1, 4)/) + q4(q4) = (/(i, i = 1, 4)/) + p8(q8) = (/(i, i = 1, 4)/) + q8(q8) = (/(i, i = 1, 4)/) + if (any(p4 .ne. q4)) call abort () + if (any(p8 .ne. q8)) call abort () +end +! Whichever is the default length for array indices will yield +! parm 18 times, because a temporary is not necessary. The other +! cases will all yield a temporary, so that atmp appears 18 times. +! Note that it is the kind conversion that generates the temp. +! +! { dg-final { scan-tree-dump-times "parm" 18 "original" } } +! { dg-final { scan-tree-dump-times "atmp" 18 "original" } } +! { dg-final { cleanup-tree-dump "original" } } |