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authorThomas Koenig <tkoenig@gcc.gnu.org>2019-01-06 12:48:58 +0000
committerThomas Koenig <tkoenig@gcc.gnu.org>2019-01-06 12:48:58 +0000
commit13b1afe4defcc3eeaa50fe10eb2f2768e95696ec (patch)
tree26134927b3fb6c16bc2861226c82eda9a4723674 /gcc/fortran/simplify.c
parent8f4813c1b7e2e567dbeeb5f46ce3ecd7c702bef7 (diff)
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re PR fortran/88658 (Intrinsic MAX1 returns a REAL result, should be INTEGER.)
2019-01-06 Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/88658 * gfortran.h: Add macro gfc_real_4_kind * simplify.c (simplify_min_max): Special case for the types of AMAX0, AMIN0, MAX1 and MIN1, which actually change the types of their arguments. 2019-01-06 Thomas Koenig <tkoenig@gcc.gnu.org> PR fortran/88658 * gfortran.dg/min_max_type_2.f90: New test. From-SVN: r267609
Diffstat (limited to 'gcc/fortran/simplify.c')
-rw-r--r--gcc/fortran/simplify.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/gcc/fortran/simplify.c b/gcc/fortran/simplify.c
index 2231390..fdaf3cb 100644
--- a/gcc/fortran/simplify.c
+++ b/gcc/fortran/simplify.c
@@ -4963,6 +4963,8 @@ static gfc_expr *
simplify_min_max (gfc_expr *expr, int sign)
{
gfc_actual_arglist *arg, *last, *extremum;
+ gfc_expr *tmp, *ret;
+ const char *fname;
last = NULL;
extremum = NULL;
@@ -4995,7 +4997,27 @@ simplify_min_max (gfc_expr *expr, int sign)
if (expr->value.function.actual->next != NULL)
return NULL;
- return gfc_copy_expr (expr->value.function.actual->expr);
+ /* Handle special cases of specific functions (min|max)1 and
+ a(min|max)0. */
+
+ tmp = expr->value.function.actual->expr;
+ fname = expr->value.function.isym->name;
+
+ if ((tmp->ts.type != BT_INTEGER || tmp->ts.kind != gfc_integer_4_kind)
+ && (strcmp (fname, "min1") == 0 || strcmp (fname, "max1") == 0))
+ {
+ ret = gfc_convert_constant (tmp, BT_INTEGER, gfc_integer_4_kind);
+ }
+ else if ((tmp->ts.type != BT_REAL || tmp->ts.kind != gfc_real_4_kind)
+ && (strcmp (fname, "amin0") == 0 || strcmp (fname, "amax0") == 0))
+ {
+ ret = gfc_convert_constant (tmp, BT_REAL, gfc_real_4_kind);
+ }
+ else
+ ret = gfc_copy_expr (tmp);
+
+ return ret;
+
}