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authorkargl <kargl@138bc75d-0d04-0410-961f-82ee72b054a4>2018-01-20 20:45:50 +0000
committerkargl <kargl@138bc75d-0d04-0410-961f-82ee72b054a4>2018-01-20 20:45:50 +0000
commitb7ac7190c2d19c52bdba10f50d6bfa1058500517 (patch)
tree290151bd50a11d1d10af617eef937049570aec7e
parentaa499fa0254298c0f2a83fabe05fba5cd4f38098 (diff)
2018-01-20 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/83900 * simplify.c (gfc_simplify_matmul): Set return type correctly. 2018-01-20 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/83900 * gfortran.dg/matmul_18.f90: New test. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-7-branch@256920 138bc75d-0d04-0410-961f-82ee72b054a4
-rw-r--r--gcc/fortran/ChangeLog5
-rw-r--r--gcc/fortran/simplify.c20
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gfortran.dg/matmul_18.f908
4 files changed, 35 insertions, 3 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 08295d71b6b3..4ff41b6fb6d4 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,8 @@
+2018-01-20 Steven G. Kargl <kargl@gcc.gnu.org>
+
+ PR fortran/83900
+ * simplify.c (gfc_simplify_matmul): Set return type correctly.
+
2018-01019 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/83900
diff --git a/gcc/fortran/simplify.c b/gcc/fortran/simplify.c
index 22953059f3d7..d12ae5f4aaba 100644
--- a/gcc/fortran/simplify.c
+++ b/gcc/fortran/simplify.c
@@ -4202,9 +4202,23 @@ gfc_simplify_matmul (gfc_expr *matrix_a, gfc_expr *matrix_b)
|| !is_constant_array_expr (matrix_b))
return NULL;
- result = gfc_get_array_expr (matrix_a->ts.type,
- matrix_a->ts.kind,
- &matrix_a->where);
+ /* MATMUL should do mixed-mode arithmetic. Set the result type. */
+ if (matrix_a->ts.type != matrix_b->ts.type)
+ {
+ gfc_expr e;
+ e.expr_type = EXPR_OP;
+ gfc_clear_ts (&e.ts);
+ e.value.op.op = INTRINSIC_NONE;
+ e.value.op.op1 = matrix_a;
+ e.value.op.op2 = matrix_b;
+ gfc_type_convert_binary (&e, 1);
+ result = gfc_get_array_expr (e.ts.type, e.ts.kind, &matrix_a->where);
+ }
+ else
+ {
+ result = gfc_get_array_expr (matrix_a->ts.type, matrix_a->ts.kind,
+ &matrix_a->where);
+ }
if (matrix_a->rank == 1 && matrix_b->rank == 2)
{
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index f2e78d8595a3..dfd02631306a 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-01-20 Steven G. Kargl <kargl@gcc.gnu.org>
+
+ PR fortran/83900
+ * gfortran.dg/matmul_18.f90: New test.
+
2018-01-19 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/83900
diff --git a/gcc/testsuite/gfortran.dg/matmul_18.f90 b/gcc/testsuite/gfortran.dg/matmul_18.f90
new file mode 100644
index 000000000000..acfd3c304cac
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/matmul_18.f90
@@ -0,0 +1,8 @@
+! { dg-do run }
+program p
+ integer, parameter :: a(3,2) = 1
+ real, parameter :: b(2,3) = 2
+ real d(3,3)
+ d = 4
+ if (any(d /= matmul(a,b))) call abort
+end