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authorHarald Anlauf <anlauf@gmx.de>2022-10-11 22:08:48 +0200
committerHarald Anlauf <anlauf@gmx.de>2022-10-12 19:46:46 +0200
commit7858368c3f3875f6bf634119e5731dc3c808a7c3 (patch)
tree24266b2b8b8ab28f00e6ae8493c25ecb86053b77
parentcaf9db5a7f99fae8b6088328b9b48ee79fa5e5f0 (diff)
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Fortran: check types of operands of arithmetic binary operations [PR107217]
gcc/fortran/ChangeLog: PR fortran/107217 * arith.cc (gfc_arith_plus): Compare consistency of types of operands. (gfc_arith_minus): Likewise. (gfc_arith_times): Likewise. (gfc_arith_divide): Likewise. (arith_power): Check that both operands are of numeric type. gcc/testsuite/ChangeLog: PR fortran/107217 * gfortran.dg/pr107217.f90: New test.
-rw-r--r--gcc/fortran/arith.cc15
-rw-r--r--gcc/testsuite/gfortran.dg/pr107217.f9018
2 files changed, 33 insertions, 0 deletions
diff --git a/gcc/fortran/arith.cc b/gcc/fortran/arith.cc
index 9e079e4..14ba931 100644
--- a/gcc/fortran/arith.cc
+++ b/gcc/fortran/arith.cc
@@ -624,6 +624,9 @@ gfc_arith_plus (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
gfc_expr *result;
arith rc;
+ if (op1->ts.type != op2->ts.type)
+ return ARITH_INVALID_TYPE;
+
result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op1->ts.type)
@@ -658,6 +661,9 @@ gfc_arith_minus (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
gfc_expr *result;
arith rc;
+ if (op1->ts.type != op2->ts.type)
+ return ARITH_INVALID_TYPE;
+
result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op1->ts.type)
@@ -692,6 +698,9 @@ gfc_arith_times (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
gfc_expr *result;
arith rc;
+ if (op1->ts.type != op2->ts.type)
+ return ARITH_INVALID_TYPE;
+
result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
switch (op1->ts.type)
@@ -727,6 +736,9 @@ gfc_arith_divide (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
gfc_expr *result;
arith rc;
+ if (op1->ts.type != op2->ts.type)
+ return ARITH_INVALID_TYPE;
+
rc = ARITH_OK;
result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
@@ -815,6 +827,9 @@ arith_power (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
gfc_expr *result;
arith rc;
+ if (!gfc_numeric_ts (&op1->ts) || !gfc_numeric_ts (&op2->ts))
+ return ARITH_INVALID_TYPE;
+
rc = ARITH_OK;
result = gfc_get_constant_expr (op1->ts.type, op1->ts.kind, &op1->where);
diff --git a/gcc/testsuite/gfortran.dg/pr107217.f90 b/gcc/testsuite/gfortran.dg/pr107217.f90
new file mode 100644
index 0000000..9c8492e
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr107217.f90
@@ -0,0 +1,18 @@
+! { dg-do compile }
+! PR fortran/107217 - ICE in gfc_arith_times
+! Contributed by G.Steinmetz
+
+program p
+ print *, [real :: (['1'])] * 2 ! { dg-error "Cannot convert" }
+ print *, 2 * [real :: (['1'])] ! { dg-error "Cannot convert" }
+ print *, [real :: (['1'])] + 2 ! { dg-error "Cannot convert" }
+ print *, [real :: (['1'])] - 2 ! { dg-error "Cannot convert" }
+ print *, [real :: (['1'])] / 2 ! { dg-error "Cannot convert" }
+ print *, 1 / [real :: (['1'])] ! { dg-error "Cannot convert" }
+ print *, [real :: (['1'])] ** 2 ! { dg-error "Cannot convert" }
+ print *, 2 ** [real :: (['1'])] ! { dg-error "Cannot convert" }
+ print *, 2.0 ** [real :: (.true.)] ! { dg-error "Cannot convert" }
+ print *, [real :: (.true.)] ** 2.0 ! { dg-error "Cannot convert" }
+ print *, [complex :: (['1'])] ** (1.0,2.0) ! { dg-error "Cannot convert" }
+ print *, (1.0,2.0) ** [complex :: (['1'])] ! { dg-error "Cannot convert" }
+end