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* [gcc r11-7943] PR fortran/99840 - ICE in gfc_simplify_matmul, at fortran/simplify.c:4777
@ 2021-04-01 5:50 Harald Anlauf
0 siblings, 0 replies; only message in thread
From: Harald Anlauf @ 2021-04-01 5:50 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:d7cef070bf43bfb3f3d77bac42eadea06c4b0281
commit r11-7943-gd7cef070bf43bfb3f3d77bac42eadea06c4b0281
Author: Harald Anlauf <anlauf@gmx.de>
Date: Thu Apr 1 07:49:32 2021 +0200
PR fortran/99840 - ICE in gfc_simplify_matmul, at fortran/simplify.c:4777
The simplification of the transposition of a constant array shall properly
initialize and set the shape of the result.
gcc/fortran/ChangeLog:
PR fortran/99840
* simplify.c (gfc_simplify_transpose): Properly initialize
resulting shape.
gcc/testsuite/ChangeLog:
PR fortran/99840
* gfortran.dg/transpose_5.f90: New test.
Diff:
---
gcc/fortran/simplify.c | 4 ++--
gcc/testsuite/gfortran.dg/transpose_5.f90 | 8 ++++++++
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/gcc/fortran/simplify.c b/gcc/fortran/simplify.c
index 388aca7c38c..c27b47aa98f 100644
--- a/gcc/fortran/simplify.c
+++ b/gcc/fortran/simplify.c
@@ -8123,8 +8123,8 @@ gfc_simplify_transpose (gfc_expr *matrix)
&matrix->where);
result->rank = 2;
result->shape = gfc_get_shape (result->rank);
- mpz_set (result->shape[0], matrix->shape[1]);
- mpz_set (result->shape[1], matrix->shape[0]);
+ mpz_init_set (result->shape[0], matrix->shape[1]);
+ mpz_init_set (result->shape[1], matrix->shape[0]);
if (matrix->ts.type == BT_CHARACTER)
result->ts.u.cl = matrix->ts.u.cl;
diff --git a/gcc/testsuite/gfortran.dg/transpose_5.f90 b/gcc/testsuite/gfortran.dg/transpose_5.f90
new file mode 100644
index 00000000000..ed4b643acbf
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/transpose_5.f90
@@ -0,0 +1,8 @@
+! { dg-do compile }
+! { dg-options "-O2" }
+! PR fortran/99840 - ICE in gfc_simplify_matmul, at fortran/simplify.c:4777
+program p
+ integer, parameter :: x(0,0) = 0
+ integer :: y(0,0)
+ y = matmul (x, transpose(x))
+end
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