intrinsic.c (add_functions): Add INT2, SHORT, INT8, LONG, LSTAT, MCLOCK and MCLOCK8 intrinsic functions.

* intrinsic.c (add_functions): Add INT2, SHORT, INT8, LONG,
	LSTAT, MCLOCK and MCLOCK8 intrinsic functions.
	(add_subroutines): Add LSTAT intrinsic subroutine.
	* gfortran.h (gfc_generic_isym_id): Add GFC_ISYM_INT2,
	GFC_ISYM_INT8, GFC_ISYM_LONG, GFC_ISYM_LSTAT, GFC_ISYM_MCLOCK
	and GFC_ISYM_MCLOCK8.
	* iresolve.c (gfc_resolve_int2, gfc_resolve_int8,
	gfc_resolve_long, gfc_resolve_lstat, gfc_resolve_mclock,
	gfc_resolve_mclock8, gfc_resolve_lstat_sub): New functions.
	* check.c (gfc_check_intconv): New function.
	* trans-intrinsic.c (gfc_conv_intrinsic_function): Add cases for
	the added GFC_ISYM_*.
	* simplify.c (gfc_simplify_intconv, gfc_simplify_int2,
	gfc_simplify_int8, gfc_simplify_long): New functions.
	* intrinsic.h (gfc_check_intconv, gfc_simplify_int2,
	gfc_simplify_int8, gfc_simplify_long, gfc_resolve_int2,
	gfc_resolve_int8, gfc_resolve_long, gfc_resolve_lstat,
	gfc_resolve_mclock, gfc_resolve_mclock8, gfc_resolve_lstat_sub):
	Add prototypes.

	* gfortran.dg/mclock.f90: New test.
	* gfortran.dg/int_conv_1.f90: New test.
	* gfortran.dg/stat_1.f90: New test.
	* gfortran.dg/stat_2.f90: New test.

	* configure.ac: Check for function clock.
	* Makefile.am: Compile new file intrinsics/clock.c.
	* intrinsics/clock.c: New file.
	* Makefile.in: Regenerate.
	* configure: Regenerate.
	* config.h.in: Regenerate.
	* intrinsics/stat.c: Rename the old stat_i?_sub functions to
	helper functions stat_i?_sub_0, and use them for both STAT and
	LSTAT.

From-SVN: r115754

gcc/fortran/ChangeLog

@@ -1,3 +1,25 @@
+2006-07-26  Francois-Xavier Coudert  <coudert@clipper.ens.fr>
+
+	* intrinsic.c (add_functions): Add INT2, SHORT, INT8, LONG,
+	LSTAT, MCLOCK and MCLOCK8 intrinsic functions.
+	(add_subroutines): Add LSTAT intrinsic subroutine.
+	* gfortran.h (gfc_generic_isym_id): Add GFC_ISYM_INT2,
+	GFC_ISYM_INT8, GFC_ISYM_LONG, GFC_ISYM_LSTAT, GFC_ISYM_MCLOCK
+	and GFC_ISYM_MCLOCK8.
+	* iresolve.c (gfc_resolve_int2, gfc_resolve_int8,
+	gfc_resolve_long, gfc_resolve_lstat, gfc_resolve_mclock,
+	gfc_resolve_mclock8, gfc_resolve_lstat_sub): New functions.
+	* check.c (gfc_check_intconv): New function.
+	* trans-intrinsic.c (gfc_conv_intrinsic_function): Add cases for
+	the added GFC_ISYM_*.
+	* simplify.c (gfc_simplify_intconv, gfc_simplify_int2,
+	gfc_simplify_int8, gfc_simplify_long): New functions.
+	* intrinsic.h (gfc_check_intconv, gfc_simplify_int2,
+	gfc_simplify_int8, gfc_simplify_long, gfc_resolve_int2,
+	gfc_resolve_int8, gfc_resolve_long, gfc_resolve_lstat,
+	gfc_resolve_mclock, gfc_resolve_mclock8, gfc_resolve_lstat_sub):
+	Add prototypes.
+
 2006-07-24  Erik Edelmann  <eedelman@gcc.gnu.org>
 
 	PR fortran/28416
@@ -17,7 +39,7 @@
 
 2006-07-22  Steven Bosscher  <steven@gcc.gnu.org> 
 
-    PR fortran/28439
+	PR fortran/28439
 	* trans-stmt.c (gfc_trans_arithmetic_if): Evaluate the condition once.
 
 2006-07-16  Jakub Jelinek  <jakub@redhat.com>

gcc/fortran/check.c

@@ -1199,6 +1199,16 @@ gfc_check_int (gfc_expr * x, gfc_expr * kind)
 }
 
 
+try
+gfc_check_intconv (gfc_expr * x)
+{
+  if (numeric_check (x, 0) == FAILURE)
+    return FAILURE;
+
+  return SUCCESS;
+}
+
+
 try
 gfc_check_ior (gfc_expr * i, gfc_expr * j)
 {

gcc/fortran/gfortran.h

@@ -377,6 +377,8 @@ enum gfc_generic_isym_id
   GFC_ISYM_IERRNO,
   GFC_ISYM_INDEX,
   GFC_ISYM_INT,
+  GFC_ISYM_INT2,
+  GFC_ISYM_INT8,
   GFC_ISYM_IOR,
   GFC_ISYM_IRAND,
   GFC_ISYM_ISATTY,
@@ -391,15 +393,19 @@ enum gfc_generic_isym_id
   GFC_ISYM_LGT,
   GFC_ISYM_LLE,
   GFC_ISYM_LLT,
-  GFC_ISYM_LOG,
   GFC_ISYM_LOC,
+  GFC_ISYM_LOG,
   GFC_ISYM_LOG10,
   GFC_ISYM_LOGICAL,
+  GFC_ISYM_LONG,
+  GFC_ISYM_LSTAT,
   GFC_ISYM_MALLOC,
   GFC_ISYM_MATMUL,
   GFC_ISYM_MAX,
   GFC_ISYM_MAXLOC,
   GFC_ISYM_MAXVAL,
+  GFC_ISYM_MCLOCK,
+  GFC_ISYM_MCLOCK8,
   GFC_ISYM_MERGE,
   GFC_ISYM_MIN,
   GFC_ISYM_MINLOC,

gcc/fortran/intrinsic.c

@@ -1535,6 +1535,26 @@ add_functions (void)
 
   make_generic ("int", GFC_ISYM_INT, GFC_STD_F77);
 
+  add_sym_1 ("int2", 1, 0, BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_intconv, gfc_simplify_int2, gfc_resolve_int2,
+	     a, BT_REAL, dr, REQUIRED);
+
+  make_alias ("short", GFC_STD_GNU);
+
+  make_generic ("int2", GFC_ISYM_INT2, GFC_STD_GNU);
+
+  add_sym_1 ("int8", 1, 0, BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_intconv, gfc_simplify_int8, gfc_resolve_int8,
+	     a, BT_REAL, dr, REQUIRED);
+
+  make_generic ("int8", GFC_ISYM_INT8, GFC_STD_GNU);
+
+  add_sym_1 ("long", 1, 0, BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_intconv, gfc_simplify_long, gfc_resolve_long,
+	     a, BT_REAL, dr, REQUIRED);
+
+  make_generic ("long", GFC_ISYM_LONG, GFC_STD_GNU);
+
   add_sym_2 ("ior", 1, 1, BT_INTEGER, di, GFC_STD_F95,
 	     gfc_check_ior, gfc_simplify_ior, gfc_resolve_ior,
 	     i, BT_INTEGER, di, REQUIRED, j, BT_INTEGER, di, REQUIRED);
@@ -1679,6 +1699,12 @@ add_functions (void)
 
   make_generic ("logical", GFC_ISYM_LOGICAL, GFC_STD_F95);
 
+  add_sym_2 ("lstat", 0, 1, BT_INTEGER, di, GFC_STD_GNU,
+	     gfc_check_stat, NULL, gfc_resolve_lstat,
+	     a, BT_CHARACTER, dc, REQUIRED, b, BT_INTEGER, di, REQUIRED);
+
+  make_generic ("lstat", GFC_ISYM_LSTAT, GFC_STD_GNU);
+
   add_sym_1 ("malloc", 0, 1, BT_INTEGER, ii, GFC_STD_GNU, gfc_check_malloc,
 	     NULL, gfc_resolve_malloc, a, BT_INTEGER, di, REQUIRED);
 
@@ -1739,6 +1765,16 @@ add_functions (void)
 
   make_generic ("maxval", GFC_ISYM_MAXVAL, GFC_STD_F95);
 
+  add_sym_0 ("mclock", 1, 0, BT_INTEGER, di, GFC_STD_GNU,
+	     NULL, NULL, gfc_resolve_mclock);
+
+  make_generic ("mclock", GFC_ISYM_MCLOCK, GFC_STD_GNU);
+
+  add_sym_0 ("mclock8", 1, 0, BT_INTEGER, di, GFC_STD_GNU,
+	     NULL, NULL, gfc_resolve_mclock8);
+
+  make_generic ("mclock8", GFC_ISYM_MCLOCK8, GFC_STD_GNU);
+
   add_sym_3 ("merge", 1, 1, BT_REAL, dr, GFC_STD_F95,
 	     gfc_check_merge, NULL, gfc_resolve_merge,
 	     ts, BT_REAL, dr, REQUIRED, fs, BT_REAL, dr, REQUIRED,
@@ -2410,6 +2446,11 @@ add_subroutines (void)
 	      ut, BT_INTEGER, di, REQUIRED, vl, BT_INTEGER, di, REQUIRED,
 	      st, BT_INTEGER, di, OPTIONAL);
 
+  add_sym_3s ("lstat", 0, 1, BT_UNKNOWN, 0, GFC_STD_GNU,
+	      gfc_check_stat_sub, NULL, gfc_resolve_lstat_sub,
+	      name, BT_CHARACTER, dc, REQUIRED, vl, BT_INTEGER, di, REQUIRED,
+	      st, BT_INTEGER, di, OPTIONAL);
+
   add_sym_3s ("stat", 0, 1, BT_UNKNOWN, 0, GFC_STD_GNU,
 	      gfc_check_stat_sub, NULL, gfc_resolve_stat_sub,
 	      name, BT_CHARACTER, dc, REQUIRED, vl, BT_INTEGER, di, REQUIRED,

gcc/fortran/intrinsic.h

@@ -74,6 +74,7 @@ try gfc_check_idnint (gfc_expr *);
 try gfc_check_ieor (gfc_expr *, gfc_expr *);
 try gfc_check_index (gfc_expr *, gfc_expr *, gfc_expr *);
 try gfc_check_int (gfc_expr *, gfc_expr *);
+try gfc_check_intconv (gfc_expr *);
 try gfc_check_ior (gfc_expr *, gfc_expr *);
 try gfc_check_irand (gfc_expr *);
 try gfc_check_isatty (gfc_expr *);
@@ -222,6 +223,9 @@ gfc_expr *gfc_simplify_ichar (gfc_expr *);
 gfc_expr *gfc_simplify_ieor (gfc_expr *, gfc_expr *);
 gfc_expr *gfc_simplify_index (gfc_expr *, gfc_expr *, gfc_expr *);
 gfc_expr *gfc_simplify_int (gfc_expr *, gfc_expr *);
+gfc_expr *gfc_simplify_int2 (gfc_expr *);
+gfc_expr *gfc_simplify_int8 (gfc_expr *);
+gfc_expr *gfc_simplify_long (gfc_expr *);
 gfc_expr *gfc_simplify_ifix (gfc_expr *);
 gfc_expr *gfc_simplify_idint (gfc_expr *);
 gfc_expr *gfc_simplify_ior (gfc_expr *, gfc_expr *);
@@ -352,6 +356,9 @@ void gfc_resolve_ieor (gfc_expr *, gfc_expr *, gfc_expr *);
 void gfc_resolve_ichar (gfc_expr *, gfc_expr *);
 void gfc_resolve_idnint (gfc_expr *, gfc_expr *);
 void gfc_resolve_int (gfc_expr *, gfc_expr *, gfc_expr *);
+void gfc_resolve_int2 (gfc_expr *, gfc_expr *);
+void gfc_resolve_int8 (gfc_expr *, gfc_expr *);
+void gfc_resolve_long (gfc_expr *, gfc_expr *);
 void gfc_resolve_ior (gfc_expr *, gfc_expr *, gfc_expr *);
 void gfc_resolve_isatty (gfc_expr *, gfc_expr *);
 void gfc_resolve_ishft (gfc_expr *, gfc_expr *, gfc_expr *);
@@ -365,11 +372,14 @@ void gfc_resolve_loc (gfc_expr *, gfc_expr *);
 void gfc_resolve_log (gfc_expr *, gfc_expr *);
 void gfc_resolve_log10 (gfc_expr *, gfc_expr *);
 void gfc_resolve_logical (gfc_expr *, gfc_expr *, gfc_expr *);
+void gfc_resolve_lstat (gfc_expr *, gfc_expr *, gfc_expr *);
 void gfc_resolve_malloc (gfc_expr *, gfc_expr *);
 void gfc_resolve_matmul (gfc_expr *, gfc_expr *, gfc_expr *);
 void gfc_resolve_max (gfc_expr *, gfc_actual_arglist *);
 void gfc_resolve_maxloc (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
 void gfc_resolve_maxval (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
+void gfc_resolve_mclock (gfc_expr *);
+void gfc_resolve_mclock8 (gfc_expr *);
 void gfc_resolve_merge (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
 void gfc_resolve_min (gfc_expr *, gfc_actual_arglist *);
 void gfc_resolve_minloc (gfc_expr *, gfc_expr *, gfc_expr *, gfc_expr *);
@@ -448,6 +458,7 @@ void gfc_resolve_get_environment_variable (gfc_code *);
 void gfc_resolve_hostnm_sub (gfc_code *);
 void gfc_resolve_idate (gfc_code *);
 void gfc_resolve_itime (gfc_code *);
+void gfc_resolve_lstat_sub (gfc_code *);
 void gfc_resolve_kill_sub (gfc_code *);
 void gfc_resolve_mvbits (gfc_code *);
 void gfc_resolve_perror (gfc_code *);

gcc/fortran/iresolve.c

@@ -853,6 +853,42 @@ gfc_resolve_int (gfc_expr * f, gfc_expr * a, gfc_expr * kind)
 }
 
 
+void
+gfc_resolve_int2 (gfc_expr * f, gfc_expr * a)
+{
+  f->ts.type = BT_INTEGER;
+  f->ts.kind = 2;
+
+  f->value.function.name =
+    gfc_get_string ("__int_%d_%c%d", f->ts.kind, gfc_type_letter (a->ts.type),
+		    a->ts.kind);
+}
+
+
+void
+gfc_resolve_int8 (gfc_expr * f, gfc_expr * a)
+{
+  f->ts.type = BT_INTEGER;
+  f->ts.kind = 8;
+
+  f->value.function.name =
+    gfc_get_string ("__int_%d_%c%d", f->ts.kind, gfc_type_letter (a->ts.type),
+		    a->ts.kind);
+}
+
+
+void
+gfc_resolve_long (gfc_expr * f, gfc_expr * a)
+{
+  f->ts.type = BT_INTEGER;
+  f->ts.kind = 4;
+
+  f->value.function.name =
+    gfc_get_string ("__int_%d_%c%d", f->ts.kind, gfc_type_letter (a->ts.type),
+		    a->ts.kind);
+}
+
+
 void
 gfc_resolve_isatty (gfc_expr * f, gfc_expr * u)
 {
@@ -1190,6 +1226,24 @@ gfc_resolve_maxval (gfc_expr * f, gfc_expr * array, gfc_expr * dim,
 }
 
 
+void
+gfc_resolve_mclock (gfc_expr * f)
+{
+  f->ts.type = BT_INTEGER;
+  f->ts.kind = 4;
+  f->value.function.name = PREFIX("mclock");
+}
+
+
+void
+gfc_resolve_mclock8 (gfc_expr * f)
+{
+  f->ts.type = BT_INTEGER;
+  f->ts.kind = 8;
+  f->value.function.name = PREFIX("mclock8");
+}
+
+
 void
 gfc_resolve_merge (gfc_expr * f, gfc_expr * tsource,
 		   gfc_expr * fsource ATTRIBUTE_UNUSED,
@@ -1803,6 +1857,16 @@ gfc_resolve_stat (gfc_expr * f, gfc_expr * n ATTRIBUTE_UNUSED,
 }
 
 
+void
+gfc_resolve_lstat (gfc_expr * f, gfc_expr * n ATTRIBUTE_UNUSED,
+		   gfc_expr * a ATTRIBUTE_UNUSED)
+{
+  f->ts.type = BT_INTEGER;
+  f->ts.kind = gfc_default_integer_kind;
+  f->value.function.name = gfc_get_string (PREFIX("lstat_i%d"), f->ts.kind);
+}
+
+
 void
 gfc_resolve_fstat (gfc_expr * f, gfc_expr * n, gfc_expr * a ATTRIBUTE_UNUSED)
 {
@@ -2655,6 +2719,16 @@ gfc_resolve_stat_sub (gfc_code * c)
 }
 
 
+void
+gfc_resolve_lstat_sub (gfc_code * c)
+{
+  const char *name;
+
+  name = gfc_get_string (PREFIX("lstat_i%d_sub"), gfc_default_integer_kind);
+  c->resolved_sym = gfc_get_intrinsic_sub_symbol (name);
+}
+
+
 void
 gfc_resolve_fstat_sub (gfc_code * c)
 {

gcc/fortran/simplify.c

@@ -1610,6 +1610,66 @@ gfc_simplify_int (gfc_expr * e, gfc_expr * k)
 }
 
 
+static gfc_expr *
+gfc_simplify_intconv (gfc_expr * e, int kind, const char *name)
+{
+  gfc_expr *rpart, *rtrunc, *result;
+
+  if (e->expr_type != EXPR_CONSTANT)
+    return NULL;
+
+  result = gfc_constant_result (BT_INTEGER, kind, &e->where);
+
+  switch (e->ts.type)
+    {
+    case BT_INTEGER:
+      mpz_set (result->value.integer, e->value.integer);
+      break;
+
+    case BT_REAL:
+      rtrunc = gfc_copy_expr (e);
+      mpfr_trunc (rtrunc->value.real, e->value.real);
+      gfc_mpfr_to_mpz (result->value.integer, rtrunc->value.real);
+      gfc_free_expr (rtrunc);
+      break;
+
+    case BT_COMPLEX:
+      rpart = gfc_complex2real (e, kind);
+      rtrunc = gfc_copy_expr (rpart);
+      mpfr_trunc (rtrunc->value.real, rpart->value.real);
+      gfc_mpfr_to_mpz (result->value.integer, rtrunc->value.real);
+      gfc_free_expr (rpart);
+      gfc_free_expr (rtrunc);
+      break;
+
+    default:
+      gfc_error ("Argument of %s at %L is not a valid type", name, &e->where);
+      gfc_free_expr (result);
+      return &gfc_bad_expr;
+    }
+
+  return range_check (result, name);
+}
+
+gfc_expr *
+gfc_simplify_int2 (gfc_expr * e)
+{
+  return gfc_simplify_intconv (e, 2, "INT2");
+}
+
+gfc_expr *
+gfc_simplify_int8 (gfc_expr * e)
+{
+  return gfc_simplify_intconv (e, 8, "INT8");
+}
+
+gfc_expr *
+gfc_simplify_long (gfc_expr * e)
+{
+  return gfc_simplify_intconv (e, 4, "LONG");
+}
+
+
 gfc_expr *
 gfc_simplify_ifix (gfc_expr * e)
 {

gcc/fortran/trans-intrinsic.c

@@ -3477,6 +3477,9 @@ gfc_conv_intrinsic_function (gfc_se * se, gfc_expr * expr)
       /* Integer conversions are handled separately to make sure we get the
          correct rounding mode.  */
     case GFC_ISYM_INT:
+    case GFC_ISYM_INT2:
+    case GFC_ISYM_INT8:
+    case GFC_ISYM_LONG:
       gfc_conv_intrinsic_int (se, expr, FIX_TRUNC_EXPR);
       break;
 
@@ -3732,8 +3735,11 @@ gfc_conv_intrinsic_function (gfc_se * se, gfc_expr * expr)
     case GFC_ISYM_IRAND:
     case GFC_ISYM_ISATTY:
     case GFC_ISYM_LINK:
+    case GFC_ISYM_LSTAT:
     case GFC_ISYM_MALLOC:
     case GFC_ISYM_MATMUL:
+    case GFC_ISYM_MCLOCK:
+    case GFC_ISYM_MCLOCK8:
     case GFC_ISYM_RAND:
     case GFC_ISYM_RENAME:
     case GFC_ISYM_SECOND:

gcc/testsuite/ChangeLog

@@ -1,3 +1,10 @@
+2006-07-26  Francois-Xavier Coudert  <coudert@clipper.ens.fr>
+
+	* gfortran.dg/mclock.f90: New test.
+	* gfortran.dg/int_conv_1.f90: New test.
+	* gfortran.dg/stat_1.f90: New test.
+	* gfortran.dg/stat_2.f90: New test.
+
 2006-07-25  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
 	PR libgfortran/28335

gcc/testsuite/gfortran.dg/int_conv_1.f90

@@ -0,0 +1,36 @@
+! { dg-do run }
+! { dg-options "-std=gnu" }
+  integer(kind=2) :: i2, j2, k2, l2, m2, n2, o2
+  integer(kind=4) :: i4, j4
+  integer(kind=8) :: i8, j8
+  real :: x
+  complex :: z
+
+  i2 = huge(i2) / 3
+  i8 = int8(i2)
+  i4 = long(i2)
+  j2 = short(i2)
+  k2 = int2(i2)
+  l2 = int2(i8)
+  m2 = short(i8)
+  n2 = int2(i4)
+  o2 = short(i4)
+
+  if (i8 /= i2 .or. i4 /= i2 .or. j2 /= i2 .or. k2 /= i2 &
+      .or. l2 /= i2 .or. m2 /= i2 .or. n2 /= i2 .or. o2 /= i2) call abort
+
+  x = i2
+  i8 = int8(x)
+  i4 = long(x)
+  j2 = short(x)
+  k2 = int2(x)
+  if (i8 /= i2 .or. i4 /= i2 .or. j2 /= i2 .or. k2 /= i2) call abort
+
+  z = i2 + (0.,-42.)
+  i8 = int8(z)
+  i4 = long(z)
+  j2 = short(z)
+  k2 = int2(z)
+  if (i8 /= i2 .or. i4 /= i2 .or. j2 /= i2 .or. k2 /= i2) call abort
+
+  end

gcc/testsuite/gfortran.dg/mclock.f90

@@ -0,0 +1,13 @@
+! { dg-do run }
+! { dg-options "-std=gnu" }
+  integer(kind=4) :: i4, j4
+  integer(kind=8) :: i8, j8
+
+  i4 = mclock()
+  i8 = mclock8()
+  j4 = mclock()
+  j8 = mclock8()
+
+  if (i4 > j4 .or. i8 > j8 .or. i4 > i8 .or. j4 > j8) call abort
+
+  end

gcc/testsuite/gfortran.dg/stat_1.f90

@@ -0,0 +1,22 @@
+! { dg-do run }
+! { dg-options "-std=gnu" }
+  character(len=*), parameter :: f = "testfile"
+  integer :: s1(13), r1, s2(13), r2, s3(13), r3
+  
+  open (10,file=f)
+  write (10,"(A)") "foo"
+  close (10,status="keep")
+
+  open (10,file=f)
+  call lstat (f, s1, r1)
+  call stat (f, s2, r2)
+  call fstat (10, s3, r3)
+
+  if (r1 /= 0 .or. r2 /= 0 .or. r3 /= 0) call abort
+  if (any (s1 /= s2) .or. any (s1 /= s3)) call abort
+  if (s1(5) /= getuid()) call abort
+  if (s1(6) /= getgid()) call abort
+  if (s1(8) < 3 .or. s1(8) > 5) call abort
+
+  close (10,status="delete")
+  end

gcc/testsuite/gfortran.dg/stat_2.f90

@@ -0,0 +1,22 @@
+! { dg-do run }
+! { dg-options "-std=gnu" }
+  character(len=*), parameter :: f = "testfile"
+  integer :: s1(13), r1, s2(13), r2, s3(13), r3
+  
+  open (10,file=f)
+  write (10,"(A)") "foo"
+  close (10,status="keep")
+
+  open (10,file=f)
+  r1 = lstat (f, s1)
+  r2 = stat (f, s2)
+  r3 = fstat (10, s3)
+
+  if (r1 /= 0 .or. r2 /= 0 .or. r3 /= 0) call abort
+  if (any (s1 /= s2) .or. any (s1 /= s3)) call abort
+  if (s1(5) /= getuid()) call abort
+  if (s1(6) /= getgid()) call abort
+  if (s1(8) < 3 .or. s1(8) > 5) call abort
+
+  close (10,status="delete")
+  end

libgfortran/ChangeLog

@@ -1,3 +1,15 @@
+2006-07-26  Francois-Xavier Coudert  <coudert@clipper.ens.fr>
+
+	* configure.ac: Check for function clock.
+	* Makefile.am: Compile new file intrinsics/clock.c.
+	* intrinsics/clock.c: New file.
+	* Makefile.in: Regenerate.
+	* configure: Regenerate.
+	* config.h.in: Regenerate.
+	* intrinsics/stat.c: Rename the old stat_i?_sub functions to
+	helper functions stat_i?_sub_0, and use them for both STAT and
+	LSTAT.
+
 2006-07-25  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
 
 	PR libgfortran/28335

libgfortran/Makefile.am

@@ -45,6 +45,7 @@ intrinsics/args.c \
 intrinsics/bessel.c \
 intrinsics/c99_functions.c \
 intrinsics/chdir.c \
+intrinsics/clock.c \
 intrinsics/cpu_time.c \
 intrinsics/cshift0.c \
 intrinsics/ctime.c \

libgfortran/Makefile.in

@@ -162,11 +162,11 @@ am__objects_29 = close.lo file_pos.lo format.lo inquire.lo \
 	list_read.lo lock.lo open.lo read.lo size_from_kind.lo \
 	transfer.lo unit.lo unix.lo write.lo
 am__objects_30 = associated.lo abort.lo args.lo bessel.lo \
-	c99_functions.lo chdir.lo cpu_time.lo cshift0.lo ctime.lo \
+	c99_functions.lo chdir.lo clock.lo cpu_time.lo cshift0.lo \
-	date_and_time.lo env.lo erf.lo eoshift0.lo eoshift2.lo \
+	ctime.lo date_and_time.lo env.lo erf.lo eoshift0.lo \
-	etime.lo exit.lo fget.lo flush.lo fnum.lo ftell.lo gerror.lo \
+	eoshift2.lo etime.lo exit.lo fget.lo flush.lo fnum.lo ftell.lo \
-	getcwd.lo getlog.lo getXid.lo hyper.lo hostnm.lo kill.lo \
+	gerror.lo getcwd.lo getlog.lo getXid.lo hyper.lo hostnm.lo \
-	ierrno.lo ishftc.lo link.lo malloc.lo mvbits.lo \
+	kill.lo ierrno.lo ishftc.lo link.lo malloc.lo mvbits.lo \
 	pack_generic.lo perror.lo signal.lo size.lo sleep.lo \
 	spread_generic.lo string_intrinsics.lo system.lo rand.lo \
 	random.lo rename.lo reshape_generic.lo reshape_packed.lo \
@@ -389,6 +389,7 @@ intrinsics/args.c \
 intrinsics/bessel.c \
 intrinsics/c99_functions.c \
 intrinsics/chdir.c \
+intrinsics/clock.c \
 intrinsics/cpu_time.c \
 intrinsics/cshift0.c \
 intrinsics/ctime.c \
@@ -2215,6 +2216,9 @@ c99_functions.lo: intrinsics/c99_functions.c
 chdir.lo: intrinsics/chdir.c
 	$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o chdir.lo `test -f 'intrinsics/chdir.c' || echo '$(srcdir)/'`intrinsics/chdir.c
 
+clock.lo: intrinsics/clock.c
+	$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o clock.lo `test -f 'intrinsics/clock.c' || echo '$(srcdir)/'`intrinsics/clock.c
+
 cpu_time.lo: intrinsics/cpu_time.c
 	$(LIBTOOL) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS) -c -o cpu_time.lo `test -f 'intrinsics/cpu_time.c' || echo '$(srcdir)/'`intrinsics/cpu_time.c
 

libgfortran/config.h.in

@@ -150,6 +150,9 @@
 /* Define to 1 if you have the `chsize' function. */
 #undef HAVE_CHSIZE
 
+/* Define to 1 if you have the `clock' function. */
+#undef HAVE_CLOCK
+
 /* libm includes clog */
 #undef HAVE_CLOG
 

libgfortran/configure

@@ -9975,7 +9975,8 @@ done
 
 
 
-for ac_func in sleep time ttyname signal alarm ctime
+
+for ac_func in sleep time ttyname signal alarm ctime clock
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
 echo "$as_me:$LINENO: checking for $ac_func" >&5

libgfortran/configure.ac

@@ -171,7 +171,7 @@ AC_CHECK_MEMBERS([struct stat.st_rdev])
 # Check for library functions.
 AC_CHECK_FUNCS(getrusage times mkstemp strtof strtold snprintf ftruncate chsize)
 AC_CHECK_FUNCS(chdir strerror getlogin gethostname kill link symlink perror)
-AC_CHECK_FUNCS(sleep time ttyname signal alarm ctime)
+AC_CHECK_FUNCS(sleep time ttyname signal alarm ctime clock)
 
 # Check libc for getgid, getpid, getuid
 AC_CHECK_LIB([c],[getgid],[AC_DEFINE([HAVE_GETGID],[1],[libc includes getgid])])

libgfortran/intrinsics/clock.c

@@ -0,0 +1,78 @@
+/* Implementation of the MCLOCK and MCLOCK8 g77 intrinsics.
+   Copyright (C) 2006 Free Software Foundation, Inc.
+   Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 2 of the License, or (at your option) any later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+Libgfortran is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public
+License along with libgfortran; see the file COPYING.  If not,
+write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#include "config.h"
+#include "libgfortran.h"
+
+#ifdef TIME_WITH_SYS_TIME
+#  include <sys/time.h>
+#  include <time.h>
+#else
+#  if HAVE_SYS_TIME_H
+#    include <sys/time.h>
+#  else
+#    ifdef HAVE_TIME_H
+#      include <time.h>
+#    endif
+#  endif
+#endif
+
+
+/* INTEGER(KIND=4) FUNCTION MCLOCK()  */
+
+extern GFC_INTEGER_4 mclock (void);
+export_proto(mclock);
+
+GFC_INTEGER_4
+mclock (void)
+{
+#ifdef HAVE_CLOCK
+  return (GFC_INTEGER_4) clock ();
+#else
+  return (GFC_INTEGER_4) -1;
+#endif
+}
+
+
+/* INTEGER(KIND=8) FUNCTION MCLOCK8()  */
+
+extern GFC_INTEGER_8 mclock8 (void);
+export_proto(mclock8);
+
+GFC_INTEGER_8
+mclock8 (void)
+{
+#ifdef HAVE_CLOCK
+  return (GFC_INTEGER_8) clock ();
+#else
+  return (GFC_INTEGER_8) -1;
+#endif
+}
+

libgfortran/intrinsics/stat.c

@@ -59,13 +59,13 @@ Boston, MA 02110-1301, USA.  */
    CHARACTER(len=*), INTENT(IN) :: FILE
    INTEGER, INTENT(OUT), :: SARRAY(13)  */
 
-extern void stat_i4_sub (char *, gfc_array_i4 *, GFC_INTEGER_4 *,
+/*extern void stat_i4_sub_0 (char *, gfc_array_i4 *, GFC_INTEGER_4 *,
-			 gfc_charlen_type);
+			   gfc_charlen_type, int);
-iexport_proto(stat_i4_sub);
+internal_proto(stat_i4_sub_0);*/
 
-void
+static void
-stat_i4_sub (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
+stat_i4_sub_0 (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
-	     gfc_charlen_type name_len)
+	       gfc_charlen_type name_len, int is_lstat)
 {
   int val;
   char *str;
@@ -88,7 +88,10 @@ stat_i4_sub (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
   memcpy (str, name, name_len);
   str[name_len] = '\0';
 
-  val = stat(str, &sb);
+  if (is_lstat)
+    val = lstat(str, &sb);
+  else
+    val = stat(str, &sb);
 
   if (val == 0)
     {
@@ -147,15 +150,38 @@ stat_i4_sub (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
   if (status != NULL)
     *status = (val == 0) ? 0 : errno;
 }
-iexport(stat_i4_sub);
 
-extern void stat_i8_sub (char *, gfc_array_i8 *, GFC_INTEGER_8 *,
+
+extern void stat_i4_sub (char *, gfc_array_i4 *, GFC_INTEGER_4 *,
 			 gfc_charlen_type);
-iexport_proto(stat_i8_sub);
+iexport_proto(stat_i4_sub);
 
 void
-stat_i8_sub (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
+stat_i4_sub (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
 	     gfc_charlen_type name_len)
+{
+  stat_i4_sub_0 (name, sarray, status, name_len, 0);
+}
+iexport(stat_i4_sub);
+
+
+extern void lstat_i4_sub (char *, gfc_array_i4 *, GFC_INTEGER_4 *,
+			 gfc_charlen_type);
+iexport_proto(lstat_i4_sub);
+
+void
+lstat_i4_sub (char *name, gfc_array_i4 *sarray, GFC_INTEGER_4 *status,
+	     gfc_charlen_type name_len)
+{
+  stat_i4_sub_0 (name, sarray, status, name_len, 1);
+}
+iexport(lstat_i4_sub);
+
+
+
+static void
+stat_i8_sub_0 (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
+	       gfc_charlen_type name_len, int is_lstat)
 {
   int val;
   char *str;
@@ -178,7 +204,10 @@ stat_i8_sub (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
   memcpy (str, name, name_len);
   str[name_len] = '\0';
 
-  val = stat(str, &sb);
+  if (is_lstat)
+    val = lstat(str, &sb);
+  else
+    val = stat(str, &sb);
 
   if (val == 0)
     {
@@ -237,8 +266,36 @@ stat_i8_sub (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
   if (status != NULL)
     *status = (val == 0) ? 0 : errno;
 }
+
+
+extern void stat_i8_sub (char *, gfc_array_i8 *, GFC_INTEGER_8 *,
+			 gfc_charlen_type);
+iexport_proto(stat_i8_sub);
+
+void
+stat_i8_sub (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
+	     gfc_charlen_type name_len)
+{
+  stat_i8_sub_0 (name, sarray, status, name_len, 0);
+}
+
 iexport(stat_i8_sub);
 
+
+extern void lstat_i8_sub (char *, gfc_array_i8 *, GFC_INTEGER_8 *,
+			 gfc_charlen_type);
+iexport_proto(lstat_i8_sub);
+
+void
+lstat_i8_sub (char *name, gfc_array_i8 *sarray, GFC_INTEGER_8 *status,
+	     gfc_charlen_type name_len)
+{
+  stat_i8_sub_0 (name, sarray, status, name_len, 1);
+}
+
+iexport(lstat_i8_sub);
+
+
 extern GFC_INTEGER_4 stat_i4 (char *, gfc_array_i4 *, gfc_charlen_type);
 export_proto(stat_i4);
 
@@ -262,6 +319,40 @@ stat_i8 (char *name, gfc_array_i8 *sarray, gfc_charlen_type name_len)
 }
 
 
+/* SUBROUTINE STAT(FILE, SARRAY, STATUS)
+   CHARACTER(len=*), INTENT(IN) :: FILE
+   INTEGER, INTENT(OUT), :: SARRAY(13)
+   INTEGER, INTENT(OUT), OPTIONAL :: STATUS
+
+   FUNCTION STAT(FILE, SARRAY)
+   INTEGER STAT
+   CHARACTER(len=*), INTENT(IN) :: FILE
+   INTEGER, INTENT(OUT), :: SARRAY(13)  */
+
+extern GFC_INTEGER_4 lstat_i4 (char *, gfc_array_i4 *, gfc_charlen_type);
+export_proto(lstat_i4);
+
+GFC_INTEGER_4
+lstat_i4 (char *name, gfc_array_i4 *sarray, gfc_charlen_type name_len)
+{
+  GFC_INTEGER_4 val;
+  lstat_i4_sub (name, sarray, &val, name_len);
+  return val;
+}
+
+extern GFC_INTEGER_8 lstat_i8 (char *, gfc_array_i8 *, gfc_charlen_type);
+export_proto(lstat_i8);
+
+GFC_INTEGER_8
+lstat_i8 (char *name, gfc_array_i8 *sarray, gfc_charlen_type name_len)
+{
+  GFC_INTEGER_8 val;
+  lstat_i8_sub (name, sarray, &val, name_len);
+  return val;
+}
+
+
+
 /* SUBROUTINE FSTAT(UNIT, SARRAY, STATUS)
    INTEGER, INTENT(IN) :: UNIT
    INTEGER, INTENT(OUT) :: SARRAY(13)