obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 46 insertions, 0 deletions

diff --git a/gcc/testsuite/gfortran.dg/integer_exponentiation_4.f90 b/gcc/testsuite/gfortran.dg/integer_exponentiation_4.f90
new file mode 100644
index 000000000..655f6514c
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/integer_exponentiation_4.f90
@@ -0,0 +1,46 @@
+! { dg-do compile }
+! { dg-options "" }
+program test
+  implicit none
+
+!!!!!! INTEGER BASE !!!!!!
+  print *, 0**0
+  print *, 0**1
+  print *, 0**(-1) ! { dg-error "Division by zero" }
+  print *, 0**(huge(0))
+  print *, 0**(-huge(0)-1) ! { dg-error "Division by zero" }
+  print *, 0**(2_8**32)
+  print *, 0**(-(2_8**32)) ! { dg-error "Division by zero" }
+
+  print *, 1**huge(0)
+  print *, 1**(-huge(0)-1)
+  print *, 1**huge(0_8)
+  print *, 1**(-huge(0_8)-1_8)
+  print *, (-1)**huge(0)
+  print *, (-1)**(-huge(0)-1)
+  print *, (-1)**huge(0_8)
+  print *, (-1)**(-huge(0_8)-1_8)
+
+  print *, 2**huge(0) ! { dg-error "Arithmetic overflow" }
+  print *, 2**huge(0_8) ! { dg-error "Arithmetic overflow" }
+  print *, (-2)**huge(0) ! { dg-error "Arithmetic overflow" }
+  print *, (-2)**huge(0_8) ! { dg-error "Arithmetic overflow" }
+
+  print *, 2**(-huge(0)-1)
+  print *, 2**(-huge(0_8)-1_8)
+  print *, (-2)**(-huge(0)-1)
+  print *, (-2)**(-huge(0_8)-1_8)
+
+!!!!!! REAL BASE !!!!!!
+  print *, 0.0**(-1) ! { dg-error "Arithmetic overflow" }
+  print *, 0.0**(-huge(0)-1) ! { dg-error "Arithmetic overflow" }
+  print *, 2.0**huge(0) ! { dg-error "Arithmetic overflow" }
+  print *, nearest(1.0,-1.0)**(-huge(0)) ! { dg-error "Arithmetic overflow" }
+
+!!!!!! COMPLEX BASE !!!!!!
+  print *, (2.0,-4.3)**huge(0) ! { dg-error "Arithmetic overflow" }
+  print *, (2.0,-4.3)**huge(0_8) ! { dg-error "Arithmetic overflow" }
+  print *, (2.0,-4.3)**(-huge(0))
+  print *, (2.0,-4.3)**(-huge(0_8))
+
+end program test