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Diffstat (limited to 'gcc/testsuite/gfortran.dg/volatile4.f90')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/volatile4.f90 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/volatile4.f90 b/gcc/testsuite/gfortran.dg/volatile4.f90 new file mode 100644 index 000000000..f58a873df --- /dev/null +++ b/gcc/testsuite/gfortran.dg/volatile4.f90 @@ -0,0 +1,18 @@ +! { dg-do compile } +! { dg-options "-O2 -fdump-tree-optimized" } +! Tests whether volatile really works +! PR fortran/29601 +logical, volatile :: t1 +logical :: t2 +integer :: i + +t2 = .false. +t1 = .false. +do i = 1, 2 + if(t1) print *, 'VolatileNotOptimizedAway' + if(t2) print *, 'NonVolatileNotOptimizedAway' +end do +end +! { dg-final { scan-tree-dump "VolatileNotOptimizedAway" "optimized" } } */ +! { dg-final { scan-tree-dump-not "NonVolatileNotOptimizedAway" "optimized" } } */ +! { dg-final { cleanup-tree-dump "optimized" } } */ |