[PATCH, committed] Fortran: ICE in transformational_result [PR108529]

[PATCH, committed] Fortran: ICE in transformational_result [PR108529]

[Harald Anlauf]

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Dear all,

we ICE'd in the simplification of the transformational intrinsic
ANY when the passed ARRAY argument had an invalid declaration.
The reason was a reference to array->shape which was NULL.

Obvious solution: then just don't attempt to simplify.

Regtested on x86_64-pc-linux-gnu and pushed to mainline as

https://gcc.gnu.org/g:6c96382eed96a9285611f2e3e2e59557094172b8

The PR is marked as a 10/11/12/13 regression, thus I plan to
backport.

Thanks,
Harald


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From 6c96382eed96a9285611f2e3e2e59557094172b8 Mon Sep 17 00:00:00 2001
From: Harald Anlauf <anlauf@gmx.de>
Date: Tue, 24 Jan 2023 21:39:43 +0100
Subject: [PATCH] Fortran: ICE in transformational_result [PR108529]

gcc/fortran/ChangeLog:

	PR fortran/108529
	* simplify.cc (simplify_transformation): Do not try to simplify
	transformational intrinsic when the ARRAY argument has a NULL shape.

gcc/testsuite/ChangeLog:

	PR fortran/108529
	* gfortran.dg/pr108529.f90: New test.
---
 gcc/fortran/simplify.cc                | 1 +
 gcc/testsuite/gfortran.dg/pr108529.f90 | 9 +++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 gcc/testsuite/gfortran.dg/pr108529.f90

diff --git a/gcc/fortran/simplify.cc b/gcc/fortran/simplify.cc
index f413f132b3f..20ea38e0007 100644
--- a/gcc/fortran/simplify.cc
+++ b/gcc/fortran/simplify.cc
@@ -720,6 +720,7 @@ simplify_transformation (gfc_expr *array, gfc_expr *dim, gfc_expr *mask,
   size_zero = gfc_is_size_zero_array (array);

   if (!(is_constant_array_expr (array) || size_zero)
+      || array->shape == NULL
       || !gfc_is_constant_expr (dim))
     return NULL;

diff --git a/gcc/testsuite/gfortran.dg/pr108529.f90 b/gcc/testsuite/gfortran.dg/pr108529.f90
new file mode 100644
index 00000000000..34c9691fae1
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr108529.f90
@@ -0,0 +1,9 @@
+! { dg-do compile }
+! PR fortran/108529 - ICE in transformational_result
+! Contributed by G.Steinmetz
+
+program p
+  integer, parameter :: a(*,*) = reshape([1, 2, 3, 4], [2, 2])
+  logical, parameter :: b(2,*) = a > 2     ! { dg-error "Assumed size" }
+  logical, parameter :: c(*)   = all(b, 1) ! { dg-error "Bad shape" }
+end
--
2.35.3