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, 339 insertions, 0 deletions

diff --git a/gcc/testsuite/gfortran.dg/nearest_3.f90 b/gcc/testsuite/gfortran.dg/nearest_3.f90
new file mode 100644
index 000000000..7d6831670
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/nearest_3.f90
@@ -0,0 +1,339 @@
+! { dg-do run }
+! { dg-add-options ieee }
+! { dg-skip-if "NaN not supported" { spu-*-* } { "*" } { "" } }
+!
+! PR fortran/34209
+!
+! Test run-time implementation of NEAREST
+!
+program test
+  implicit none
+  real(4), volatile :: r4
+  real(8), volatile :: r8
+
+! Single precision with single-precision sign
+
+  r4 = 0.0_4
+  ! 0+ > 0
+  if (nearest(r4, 1.0) &
+      <= r4) &
+    call abort()
+  ! 0++ > 0+
+  if (nearest(nearest(r4, 1.0), 1.0) &
+      <= nearest(r4, 1.0)) &
+    call abort()
+  ! 0+++ > 0++
+  if (nearest(nearest(nearest(r4, 1.0), 1.0), 1.0) &
+      <= nearest(nearest(r4, 1.0), 1.0)) &
+    call abort()
+  ! 0+- = 0
+  if (nearest(nearest(r4, 1.0), -1.0) &
+      /= r4) &
+    call abort()
+  ! 0++- = 0+
+  if (nearest(nearest(nearest(r4, 1.0), 1.0), -1.0) &
+      /= nearest(r4, 1.0)) &
+    call abort()
+  ! 0++-- = 0
+  if (nearest(nearest(nearest(nearest(r4, 1.0), 1.0), -1.0), -1.0) &
+      /= r4) &
+    call abort()
+
+  ! 0- < 0
+  if (nearest(r4, -1.0) &
+      >= r4) &
+    call abort()
+  ! 0-- < 0+
+  if (nearest(nearest(r4, -1.0), -1.0) &
+      >= nearest(r4, -1.0)) &
+    call abort()
+  ! 0--- < 0--
+  if (nearest(nearest(nearest(r4, -1.0), -1.0), -1.0) &
+      >= nearest(nearest(r4, -1.0), -1.0)) &
+    call abort()
+  ! 0-+ = 0
+  if (nearest(nearest(r4, -1.0), 1.0) &
+      /= r4) &
+    call abort()
+  ! 0--+ = 0-
+  if (nearest(nearest(nearest(r4, -1.0), -1.0), 1.0) &
+      /= nearest(r4, -1.0)) &
+    call abort()
+  ! 0--++ = 0
+  if (nearest(nearest(nearest(nearest(r4, -1.0), -1.0), 1.0), 1.0) &
+      /= r4) &
+    call abort()
+
+  r4 = 42.0_4
+  ! 42++ > 42+
+  if (nearest(nearest(r4, 1.0), 1.0) &
+      <= nearest(r4, 1.0)) &
+    call abort()
+  ! 42-- < 42-
+  if (nearest(nearest(r4, -1.0), -1.0) &
+      >= nearest(r4, -1.0)) &
+    call abort()
+  ! 42-+ = 42
+  if (nearest(nearest(r4, -1.0), 1.0) &
+      /= r4) &
+    call abort()
+  ! 42+- = 42
+  if (nearest(nearest(r4, 1.0), -1.0) &
+      /= r4) &
+    call abort()
+
+  r4 = 0.0
+  ! INF+ = INF
+  if (nearest(1.0/r4, 1.0) /= 1.0/r4) call abort()
+  ! -INF- = -INF
+  if (nearest(-1.0/r4, -1.0) /= -1.0/r4) call abort()
+  ! NAN- = NAN
+  if (.not.isnan(nearest(0.0/r4,  1.0))) call abort()
+  ! NAN+ = NAN
+  if (.not.isnan(nearest(0.0/r4, -1.0))) call abort()
+
+! Double precision with single-precision sign
+
+  r8 = 0.0_8
+  ! 0+ > 0
+  if (nearest(r8, 1.0) &
+      <= r8) &
+    call abort()
+  ! 0++ > 0+
+  if (nearest(nearest(r8, 1.0), 1.0) &
+      <= nearest(r8, 1.0)) &
+    call abort()
+  ! 0+++ > 0++
+  if (nearest(nearest(nearest(r8, 1.0), 1.0), 1.0) &
+      <= nearest(nearest(r8, 1.0), 1.0)) &
+    call abort()
+  ! 0+- = 0
+  if (nearest(nearest(r8, 1.0), -1.0) &
+      /= r8) &
+    call abort()
+  ! 0++- = 0+
+  if (nearest(nearest(nearest(r8, 1.0), 1.0), -1.0) &
+      /= nearest(r8, 1.0)) &
+    call abort()
+  ! 0++-- = 0
+  if (nearest(nearest(nearest(nearest(r8, 1.0), 1.0), -1.0), -1.0) &
+      /= r8) &
+    call abort()
+
+  ! 0- < 0
+  if (nearest(r8, -1.0) &
+      >= r8) &
+    call abort()
+  ! 0-- < 0+
+  if (nearest(nearest(r8, -1.0), -1.0) &
+      >= nearest(r8, -1.0)) &
+    call abort()
+  ! 0--- < 0--
+  if (nearest(nearest(nearest(r8, -1.0), -1.0), -1.0) &
+      >= nearest(nearest(r8, -1.0), -1.0)) &
+    call abort()
+  ! 0-+ = 0
+  if (nearest(nearest(r8, -1.0), 1.0) &
+      /= r8) &
+    call abort()
+  ! 0--+ = 0-
+  if (nearest(nearest(nearest(r8, -1.0), -1.0), 1.0) &
+      /= nearest(r8, -1.0)) &
+    call abort()
+  ! 0--++ = 0
+  if (nearest(nearest(nearest(nearest(r8, -1.0), -1.0), 1.0), 1.0) &
+      /= r8) &
+    call abort()
+
+  r8 = 42.0_8
+  ! 42++ > 42+
+  if (nearest(nearest(r8, 1.0), 1.0) &
+      <= nearest(r8, 1.0)) &
+    call abort()
+  ! 42-- < 42-
+  if (nearest(nearest(r8, -1.0), -1.0) &
+      >= nearest(r8, -1.0)) &
+    call abort()
+  ! 42-+ = 42
+  if (nearest(nearest(r8, -1.0), 1.0) &
+      /= r8) &
+    call abort()
+  ! 42+- = 42
+  if (nearest(nearest(r8, 1.0), -1.0) &
+      /= r8) &
+    call abort()
+
+  r4 = 0.0
+  ! INF+ = INF
+  if (nearest(1.0/r4, 1.0) /= 1.0/r4) call abort()
+  ! -INF- = -INF
+  if (nearest(-1.0/r4, -1.0) /= -1.0/r4) call abort()
+  ! NAN- = NAN
+  if (.not.isnan(nearest(0.0/r4,  1.0))) call abort()
+  ! NAN+ = NAN
+  if (.not.isnan(nearest(0.0/r4, -1.0))) call abort()
+
+
+! Single precision with double-precision sign
+
+  r4 = 0.0_4
+  ! 0+ > 0
+  if (nearest(r4, 1.0d0) &
+      <= r4) &
+    call abort()
+  ! 0++ > 0+
+  if (nearest(nearest(r4, 1.0d0), 1.0d0) &
+      <= nearest(r4, 1.0d0)) &
+    call abort()
+  ! 0+++ > 0++
+  if (nearest(nearest(nearest(r4, 1.0d0), 1.0d0), 1.0d0) &
+      <= nearest(nearest(r4, 1.0d0), 1.0d0)) &
+    call abort()
+  ! 0+- = 0
+  if (nearest(nearest(r4, 1.0d0), -1.0d0) &
+      /= r4) &
+    call abort()
+  ! 0++- = 0+
+  if (nearest(nearest(nearest(r4, 1.0d0), 1.0d0), -1.0d0) &
+      /= nearest(r4, 1.0d0)) &
+    call abort()
+  ! 0++-- = 0
+  if (nearest(nearest(nearest(nearest(r4, 1.0d0), 1.0d0), -1.0d0), -1.0d0) &
+      /= r4) &
+    call abort()
+
+  ! 0- < 0
+  if (nearest(r4, -1.0d0) &
+      >= r4) &
+    call abort()
+  ! 0-- < 0+
+  if (nearest(nearest(r4, -1.0d0), -1.0d0) &
+      >= nearest(r4, -1.0d0)) &
+    call abort()
+  ! 0--- < 0--
+  if (nearest(nearest(nearest(r4, -1.0d0), -1.0d0), -1.0d0) &
+      >= nearest(nearest(r4, -1.0d0), -1.0d0)) &
+    call abort()
+  ! 0-+ = 0
+  if (nearest(nearest(r4, -1.0d0), 1.0d0) &
+      /= r4) &
+    call abort()
+  ! 0--+ = 0-
+  if (nearest(nearest(nearest(r4, -1.0d0), -1.0d0), 1.0d0) &
+      /= nearest(r4, -1.0d0)) &
+    call abort()
+  ! 0--++ = 0
+  if (nearest(nearest(nearest(nearest(r4, -1.0d0), -1.0d0), 1.0d0), 1.0d0) &
+      /= r4) &
+    call abort()
+
+  r4 = 42.0_4
+  ! 42++ > 42+
+  if (nearest(nearest(r4, 1.0d0), 1.0d0) &
+      <= nearest(r4, 1.0d0)) &
+    call abort()
+  ! 42-- < 42-
+  if (nearest(nearest(r4, -1.0d0), -1.0d0) &
+      >= nearest(r4, -1.0d0)) &
+    call abort()
+  ! 42-+ = 42
+  if (nearest(nearest(r4, -1.0d0), 1.0d0) &
+      /= r4) &
+    call abort()
+  ! 42+- = 42
+  if (nearest(nearest(r4, 1.0d0), -1.0d0) &
+      /= r4) &
+    call abort()
+
+  r4 = 0.0
+  ! INF+ = INF
+  if (nearest(1.0d0/r4, 1.0d0) /= 1.0d0/r4) call abort()
+  ! -INF- = -INF
+  if (nearest(-1.0d0/r4, -1.0d0) /= -1.0d0/r4) call abort()
+  ! NAN- = NAN
+  if (.not.isnan(nearest(0.0/r4,  1.0d0))) call abort()
+  ! NAN+ = NAN
+  if (.not.isnan(nearest(0.0/r4, -1.0d0))) call abort()
+
+! Double precision with double-precision sign
+
+  r8 = 0.0_8
+  ! 0+ > 0
+  if (nearest(r8, 1.0d0) &
+      <= r8) &
+    call abort()
+  ! 0++ > 0+
+  if (nearest(nearest(r8, 1.0d0), 1.0d0) &
+      <= nearest(r8, 1.0d0)) &
+    call abort()
+  ! 0+++ > 0++
+  if (nearest(nearest(nearest(r8, 1.0d0), 1.0d0), 1.0d0) &
+      <= nearest(nearest(r8, 1.0d0), 1.0d0)) &
+    call abort()
+  ! 0+- = 0
+  if (nearest(nearest(r8, 1.0d0), -1.0d0) &
+      /= r8) &
+    call abort()
+  ! 0++- = 0+
+  if (nearest(nearest(nearest(r8, 1.0d0), 1.0d0), -1.0d0) &
+      /= nearest(r8, 1.0d0)) &
+    call abort()
+  ! 0++-- = 0
+  if (nearest(nearest(nearest(nearest(r8, 1.0d0), 1.0d0), -1.0d0), -1.0d0) &
+      /= r8) &
+    call abort()
+
+  ! 0- < 0
+  if (nearest(r8, -1.0d0) &
+      >= r8) &
+    call abort()
+  ! 0-- < 0+
+  if (nearest(nearest(r8, -1.0d0), -1.0d0) &
+      >= nearest(r8, -1.0d0)) &
+    call abort()
+  ! 0--- < 0--
+  if (nearest(nearest(nearest(r8, -1.0d0), -1.0d0), -1.0d0) &
+      >= nearest(nearest(r8, -1.0d0), -1.0d0)) &
+    call abort()
+  ! 0-+ = 0
+  if (nearest(nearest(r8, -1.0d0), 1.0d0) &
+      /= r8) &
+    call abort()
+  ! 0--+ = 0-
+  if (nearest(nearest(nearest(r8, -1.0d0), -1.0d0), 1.0d0) &
+      /= nearest(r8, -1.0d0)) &
+    call abort()
+  ! 0--++ = 0
+  if (nearest(nearest(nearest(nearest(r8, -1.0d0), -1.0d0), 1.0d0), 1.0d0) &
+      /= r8) &
+    call abort()
+
+  r8 = 42.0_8
+  ! 42++ > 42+
+  if (nearest(nearest(r8, 1.0d0), 1.0d0) &
+      <= nearest(r8, 1.0d0)) &
+    call abort()
+  ! 42-- < 42-
+  if (nearest(nearest(r8, -1.0d0), -1.0d0) &
+      >= nearest(r8, -1.0d0)) &
+    call abort()
+  ! 42-+ = 42
+  if (nearest(nearest(r8, -1.0d0), 1.0d0) &
+      /= r8) &
+    call abort()
+  ! 42+- = 42
+  if (nearest(nearest(r8, 1.0d0), -1.0d0) &
+      /= r8) &
+    call abort()
+
+  r4 = 0.0
+  ! INF+ = INF
+  if (nearest(1.0d0/r4, 1.0d0) /= 1.0d0/r4) call abort()
+  ! -INF- = -INF
+  if (nearest(-1.0d0/r4, -1.0d0) /= -1.0d0/r4) call abort()
+  ! NAN- = NAN
+  if (.not.isnan(nearest(0.0/r4,  1.0d0))) call abort()
+  ! NAN+ = NAN
+  if (.not.isnan(nearest(0.0/r4, -1.0d0))) call abort()
+
+end program test