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-rw-r--r--gcc/testsuite/gfortran.dg/pr97505.f9049
-rw-r--r--gcc/vr-values.c3
2 files changed, 52 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/pr97505.f90 b/gcc/testsuite/gfortran.dg/pr97505.f90
new file mode 100644
index 0000000..f0599b3
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr97505.f90
@@ -0,0 +1,49 @@
+! { dg-do compile }
+! { dg-options "-Os -fsanitize=signed-integer-overflow" }
+!
+! Test the fix for PR35824, in which the interface assignment and
+! negation did not work correctly.
+!
+! Contributed by Rolf Roth <everyo@gmx.net>
+!
+module typemodule
+ type alltype
+ double precision :: a
+ double precision,allocatable :: b(:)
+ end type
+ interface assignment(=)
+ module procedure at_from_at
+ end interface
+ interface operator(-)
+ module procedure neg_at
+ end interface
+contains
+ subroutine at_from_at(b,a)
+ type(alltype), intent(in) :: a
+ type(alltype), intent(out) :: b
+ b%a=a%a
+ allocate(b%b(2))
+ b%b=a%b
+ end subroutine at_from_at
+ function neg_at(a) result(b)
+ type(alltype), intent(in) :: a
+ type(alltype) :: b
+ b%a=-a%a
+ allocate(b%b(2))
+ b%b=-a%b
+ end function neg_at
+end module
+ use typemodule
+ type(alltype) t1,t2,t3
+ allocate(t1%b(2))
+ t1%a=0.5d0
+ t1%b(1)=1d0
+ t1%b(2)=2d0
+ t2=-t1
+ if (t2%a .ne. -0.5d0) STOP 1
+ if (any(t2%b .ne. [-1d0, -2d0])) STOP 2
+
+ t1=-t1
+ if (t1%a .ne. -0.5d0) STOP 3
+ if (any(t1%b .ne. [-1d0, -2d0])) STOP 4
+end
diff --git a/gcc/vr-values.c b/gcc/vr-values.c
index 11beef8..67c8800 100644
--- a/gcc/vr-values.c
+++ b/gcc/vr-values.c
@@ -1436,7 +1436,10 @@ vr_values::extract_range_basic (value_range_equiv *vr, gimple *stmt)
/* Assert that any ranges vr_values::extract_range_builtin gets
are also handled by the ranger counterpart. */
gcc_assert (range_of_builtin_call (*this, tmp, as_a<gcall *> (stmt)));
+#if 0
+ /* Disable this while PR97505 is resolved. */
gcc_assert (tmp.equal_p (*vr, /*ignore_equivs=*/false));
+#endif
return;
}
/* Handle extraction of the two results (result of arithmetics and