From 34cecde675be67543b386b593132ce8b1bb0a3ab Mon Sep 17 00:00:00 2001
From: Harald Anlauf <anlauf@gmx.de>
Date: Sun, 16 Oct 2022 20:32:27 +0200
Subject: Fortran: check type of operands of logical operations, comparisons
 [PR107272]

gcc/fortran/ChangeLog:

	PR fortran/107272
	* arith.cc (gfc_arith_not): Operand must be of type BT_LOGICAL.
	(gfc_arith_and): Likewise.
	(gfc_arith_or): Likewise.
	(gfc_arith_eqv): Likewise.
	(gfc_arith_neqv): Likewise.
	(gfc_arith_eq): Compare consistency of types of operands.
	(gfc_arith_ne): Likewise.
	(gfc_arith_gt): Likewise.
	(gfc_arith_ge): Likewise.
	(gfc_arith_lt): Likewise.
	(gfc_arith_le): Likewise.

gcc/testsuite/ChangeLog:

	PR fortran/107272
	* gfortran.dg/pr107272.f90: New test.
---
 gcc/fortran/arith.cc | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'gcc/fortran')

diff --git a/gcc/fortran/arith.cc b/gcc/fortran/arith.cc
index 14ba931..e76a82a 100644
--- a/gcc/fortran/arith.cc
+++ b/gcc/fortran/arith.cc
@@ -422,6 +422,9 @@ gfc_arith_not (gfc_expr *op1, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != BT_LOGICAL)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, op1->ts.kind, &op1->where);
   result->value.logical = !op1->value.logical;
   *resultp = result;
@@ -435,6 +438,9 @@ gfc_arith_and (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != BT_LOGICAL || op2->ts.type != BT_LOGICAL)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_kind_max (op1, op2),
 				  &op1->where);
   result->value.logical = op1->value.logical && op2->value.logical;
@@ -449,6 +455,9 @@ gfc_arith_or (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != BT_LOGICAL || op2->ts.type != BT_LOGICAL)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_kind_max (op1, op2),
 				  &op1->where);
   result->value.logical = op1->value.logical || op2->value.logical;
@@ -463,6 +472,9 @@ gfc_arith_eqv (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != BT_LOGICAL || op2->ts.type != BT_LOGICAL)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_kind_max (op1, op2),
 				  &op1->where);
   result->value.logical = op1->value.logical == op2->value.logical;
@@ -477,6 +489,9 @@ gfc_arith_neqv (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != BT_LOGICAL || op2->ts.type != BT_LOGICAL)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_kind_max (op1, op2),
 				  &op1->where);
   result->value.logical = op1->value.logical != op2->value.logical;
@@ -1187,6 +1202,9 @@ gfc_arith_eq (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != op2->ts.type)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
 				  &op1->where);
   result->value.logical = (op1->ts.type == BT_COMPLEX)
@@ -1203,6 +1221,9 @@ gfc_arith_ne (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != op2->ts.type)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
 				  &op1->where);
   result->value.logical = (op1->ts.type == BT_COMPLEX)
@@ -1219,6 +1240,9 @@ gfc_arith_gt (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != op2->ts.type)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
 				  &op1->where);
   result->value.logical = (gfc_compare_expr (op1, op2, INTRINSIC_GT) > 0);
@@ -1233,6 +1257,9 @@ gfc_arith_ge (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != op2->ts.type)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
 				  &op1->where);
   result->value.logical = (gfc_compare_expr (op1, op2, INTRINSIC_GE) >= 0);
@@ -1247,6 +1274,9 @@ gfc_arith_lt (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != op2->ts.type)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
 				  &op1->where);
   result->value.logical = (gfc_compare_expr (op1, op2, INTRINSIC_LT) < 0);
@@ -1261,6 +1291,9 @@ gfc_arith_le (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
 {
   gfc_expr *result;
 
+  if (op1->ts.type != op2->ts.type)
+    return ARITH_INVALID_TYPE;
+
   result = gfc_get_constant_expr (BT_LOGICAL, gfc_default_logical_kind,
 				  &op1->where);
   result->value.logical = (gfc_compare_expr (op1, op2, INTRINSIC_LE) <= 0);
-- 
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