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From: Ilmir Usmanov <me@ilmir.us>
To: cesar@codesourcery.com
Cc: gcc-patches@gcc.gnu.org, i.usmanov@samsung.com, fortran@gcc.gnu.org
Subject: Re: [gomp4, fortran] Patch to fix continuation checks of OpenACC and OpenMP directives
Date: Tue, 30 Jun 2015 00:43:00 -0000	[thread overview]
Message-ID: <5591E54E.90509@ilmir.us> (raw)
In-Reply-To: <3008431435623821@web14j.yandex.ru>

[-- Attachment #1: Type: text/plain, Size: 2340 bytes --]

Hi Cesar!

Thanks for your review!

08.06.2015, 17:59, "Cesar Philippidis" <cesar@codesourcery.com>:
> On 06/07/2015 02:05 PM, Ilmir Usmanov wrote:
>>  Fixed fortran mail-list address. Sorry for inconvenience.
>>
>>  08.06.2015, 00:01, "Ilmir Usmanov" <me@ilmir.us>:
>>>>  Hi Cesar!
>>>>
>>>>  This patch fixes checks of OpenMP and OpenACC continuations in
>>>>  case if someone mixes them (i.e. continues OpenMP directive with
>>>>  !$ACC sentinel or vice versa).
>>>>
>>>>  OK for gomp branch?
>
> Thanks for working on this. Does this fix PR63858 by any chance?
No problem. I had a feeling that something is wrong in the scanner since 
I've committed an initial support of OpenACC ver. 1.0 to gomp branch 
(more than a year ago).
Now it does fix the PR, because I've added support of fixed form to the 
patch. BTW, your test in the PR has a wrong continuation. Fixed test 
added to the patch.

>
> two minor nits...
>
>>  0001-Fix-mix-of-OpenACC-and-OpenMP-sentinels-in-continuat.patch
>>
>>  From 5492bf5bc991b6924f5e3b35c11eeaed745df073 Mon Sep 17 00:00:00 2001
>>  From: Ilmir Usmanov <i.usmanov@samsung.com>
>>  Date: Sun, 7 Jun 2015 23:55:22 +0300
>>  Subject: [PATCH] Fix mix of OpenACC and OpenMP sentinels in continuation
>>
>>  ---
>>   gcc/fortran/ChangeLog | 5 +++++
>
> Use ChangeLog.gomp for gomp-4_0-branch.
Done.

>
>>  + /* In case we have an OpenMP directive continued by OpenACC
>>  + sentinel, or vice versa, we get both openmp_flag and
>>  + openacc_flag on. */
>>  +
>>  + if (openacc_flag && openmp_flag)
>>  + {
>>  + int is_openmp = 0;
>>  + for (i = 0; i < 5; i++, c = next_char ())
>>  + {
>>  + if (gfc_wide_tolower (c) != (unsigned char) "!$acc"[i])
>>  + is_openmp = 1;
>>  + if (i == 4)
>>  + old_loc = gfc_current_locus;
>>  + }
>>  + gfc_error ("Wrong %s continuation at %C: expected %s, got %s",
>>  + is_openmp ? "OpenACC" : "OpenMP",
>>  + is_openmp ? "!$ACC" : "!$OMP",
>>  + is_openmp ? "!$OMP" : "!$ACC");
>
> I think it's better for the translation project if you made this a
> complete string. So maybe change this line into
>
>   gfc_error (is_openmp ? "Wrong continuation at %C: expected !$ACC, got"
>              " !$OMP",
>              : "Wrong continuation at %C: expected !$OMP, got !$ACC");
Done

>
> Other than that, it looks fine.
>
> Thanks,
> Cesar

OK for gomp branch?

--
Ilmir.




[-- Attachment #2: 0001-PR-63858.patch --]
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From dc98062b499838ca4391c0ed497f40205267a44e Mon Sep 17 00:00:00 2001
From: Ilmir Usmanov <me@ilmir.us>
Date: Tue, 30 Jun 2015 03:05:23 +0300
Subject: [PATCH] PR/63858

---
 gcc/fortran/ChangeLog.gomp                  |  10 ++
 gcc/fortran/scanner.c                       | 259 +++++++++++++++++-----------
 gcc/testsuite/ChangeLog.gomp                |   7 +
 gcc/testsuite/gfortran.dg/goacc/omp-fixed.f |  32 ++++
 gcc/testsuite/gfortran.dg/goacc/omp.f95     |   8 +
 5 files changed, 216 insertions(+), 100 deletions(-)
 create mode 100644 gcc/testsuite/gfortran.dg/goacc/omp-fixed.f

diff --git a/gcc/fortran/ChangeLog.gomp b/gcc/fortran/ChangeLog.gomp
index aa02ffe..0a5bf47 100644
--- a/gcc/fortran/ChangeLog.gomp
+++ b/gcc/fortran/ChangeLog.gomp
@@ -1,3 +1,13 @@
+2015-06-30  Ilmir Usmanov  <me@ilmir.us>
+
+	PR/63858
+	Fix mix of OpenACC and OpenMP sentinels in continuation.
+	* scanner.c (skip_omp_attribute_fixed, skip_oacc_attribute_fixed): New
+	functions.
+	(skip_fixed_comments): Fix mix of OpenACC and OpenMP sentinels in
+	continuation.
+	(gfc_next_char_literal): Likewise.
+
 2015-06-18  James Norris  <jnorris@codesourcery.com>
 
 	* trans-decl.c (find_module_oacc_declare_clauses): Fix setting of
diff --git a/gcc/fortran/scanner.c b/gcc/fortran/scanner.c
index f0e6404..d66cf65 100644
--- a/gcc/fortran/scanner.c
+++ b/gcc/fortran/scanner.c
@@ -935,6 +935,63 @@ skip_free_comments (void)
   return false;
 }
 
+/* Return true if MP was matched in fixed form.  */
+static bool
+skip_omp_attribute_fixed (locus *start)
+{
+  gfc_char_t c;
+  if (((c = next_char ()) == 'm' || c == 'M')
+      && ((c = next_char ()) == 'p' || c == 'P'))
+    {
+      c = next_char ();
+      if (c != '\n'
+	  && (continue_flag
+	      || c == ' ' || c == '\t' || c == '0'))
+	{
+	  do
+	    c = next_char ();
+	  while (gfc_is_whitespace (c));
+	  if (c != '\n' && c != '!')
+	    {
+	      /* Canonicalize to *$omp.  */
+	      *start->nextc = '*';
+	      openmp_flag = 1;
+	      gfc_current_locus = *start;
+	      return true;
+	    }
+	}
+    }
+  return false;
+}
+
+/* Return true if CC was matched in fixed form.  */
+static bool
+skip_oacc_attribute_fixed (locus *start)
+{
+  gfc_char_t c;
+  if (((c = next_char ()) == 'c' || c == 'C')
+      && ((c = next_char ()) == 'c' || c == 'C'))
+    {
+      c = next_char ();
+      if (c != '\n'
+	  && (continue_flag
+	      || c == ' ' || c == '\t' || c == '0'))
+	{
+	  do
+	    c = next_char ();
+	  while (gfc_is_whitespace (c));
+	  if (c != '\n' && c != '!')
+	    {
+	      /* Canonicalize to *$omp.  */
+	      *start->nextc = '*';
+	      openacc_flag = 1;
+	      gfc_current_locus = *start;
+	      return true;
+	    }
+	}
+    }
+  return false;
+}
 
 /* Skip comment lines in fixed source mode.  We have the same rules as
    in skip_free_comment(), except that we can have a 'c', 'C' or '*'
@@ -1003,128 +1060,92 @@ skip_fixed_comments (void)
 	      && continue_line < gfc_linebuf_linenum (gfc_current_locus.lb))
 	    continue_line = gfc_linebuf_linenum (gfc_current_locus.lb);
 
-	  if (flag_openmp || flag_openmp_simd)
+	  if ((flag_openmp || flag_openmp_simd) && !flag_openacc)
 	    {
 	      if (next_char () == '$')
 		{
 		  c = next_char ();
 		  if (c == 'o' || c == 'O')
 		    {
-		      if (((c = next_char ()) == 'm' || c == 'M')
-			  && ((c = next_char ()) == 'p' || c == 'P'))
-			{
-			  c = next_char ();
-			  if (c != '\n'
-			      && ((openmp_flag && continue_flag)
-				  || c == ' ' || c == '\t' || c == '0'))
-			    {
-			      do
-				c = next_char ();
-			      while (gfc_is_whitespace (c));
-			      if (c != '\n' && c != '!')
-				{
-				  /* Canonicalize to *$omp.  */
-				  *start.nextc = '*';
-				  openmp_flag = 1;
-				  gfc_current_locus = start;
-				  return;
-				}
-			    }
-			}
+		      if (skip_omp_attribute_fixed (&start))
+			return;
 		    }
 		  else
+		    goto check_for_digits;
+		}
+	      gfc_current_locus = start;
+	    }
+
+	  if (flag_openacc && !(flag_openmp || flag_openmp_simd))
+	    {
+	      if (next_char () == '$')
+		{
+		  c = next_char ();
+		  if (c == 'a' || c == 'A')
 		    {
-		      int digit_seen = 0;
-
-		      for (col = 3; col < 6; col++, c = next_char ())
-			if (c == ' ')
-			  continue;
-			else if (c == '\t')
-			  {
-			    col = 6;
-			    break;
-			  }
-			else if (c < '0' || c > '9')
-			  break;
-			else
-			  digit_seen = 1;
-
-		      if (col == 6 && c != '\n'
-			  && ((continue_flag && !digit_seen)
-			      || c == ' ' || c == '\t' || c == '0'))
-			{
-			  gfc_current_locus = start;
-			  start.nextc[0] = ' ';
-			  start.nextc[1] = ' ';
-			  continue;
-			}
+		      if (skip_oacc_attribute_fixed (&start))
+			return;
 		    }
+		  else
+		    goto check_for_digits;
 		}
 	      gfc_current_locus = start;
 	    }
 
-	  if (flag_openacc)
+	  if (flag_openacc || (flag_openmp || flag_openmp_simd))
 	    {
 	      if (next_char () == '$')
 		{
 		  c = next_char ();
 		  if (c == 'a' || c == 'A')
 		    {
-		      if (((c = next_char ()) == 'c' || c == 'C')
-			  && ((c = next_char ()) == 'c' || c == 'C'))
-			{
-			  c = next_char ();
-			  if (c != '\n'
-			      && ((openacc_flag && continue_flag)
-				  || c == ' ' || c == '\t' || c == '0'))
-			    {
-			      do
-				c = next_char ();
-			      while (gfc_is_whitespace (c));
-			      if (c != '\n' && c != '!')
-				{
-				  /* Canonicalize to *$acc. */
-				  *start.nextc = '*';
-				  openacc_flag = 1;
-				  gfc_current_locus = start;
-				  return;
-				}
-			    }
-			}
+		      if (skip_oacc_attribute_fixed (&start))
+			return;
 		    }
-		  else
+		  else if (c == 'o' || c == 'O')
 		    {
-		      int digit_seen = 0;
-
-		      for (col = 3; col < 6; col++, c = next_char ())
-			if (c == ' ')
-			  continue;
-			else if (c == '\t')
-			  {
-			    col = 6;
-			    break;
-			  }
-			else if (c < '0' || c > '9')
-			  break;
-			else
-			  digit_seen = 1;
-
-		      if (col == 6 && c != '\n'
-			  && ((continue_flag && !digit_seen)
-			      || c == ' ' || c == '\t' || c == '0'))
-			{
-			  gfc_current_locus = start;
-			  start.nextc[0] = ' ';
-			  start.nextc[1] = ' ';
-			  continue;
-			}
+		      if (skip_omp_attribute_fixed (&start))
+			return;
 		    }
+		  else
+		    goto check_for_digits;
 		}
 	      gfc_current_locus = start;
 	    }
 
 	  skip_comment_line ();
 	  continue;
+
+	  gcc_unreachable ();
+check_for_digits:
+	  {
+	    int digit_seen = 0;
+
+	    for (col = 3; col < 6; col++, c = next_char ())
+	      if (c == ' ')
+		continue;
+	      else if (c == '\t')
+		{
+		  col = 6;
+		  break;
+		}
+	      else if (c < '0' || c > '9')
+		break;
+	      else
+		digit_seen = 1;
+
+	    if (col == 6 && c != '\n'
+		&& ((continue_flag && !digit_seen)
+		    || c == ' ' || c == '\t' || c == '0'))
+	      {
+		gfc_current_locus = start;
+		start.nextc[0] = ' ';
+		start.nextc[1] = ' ';
+		continue;
+	      }
+	    }
+	  skip_comment_line ();
+	  continue;
 	}
 
       if (gfc_option.flag_d_lines != -1 && (c == 'd' || c == 'D'))
@@ -1331,7 +1352,7 @@ restart:
 	continue_line = gfc_linebuf_linenum (gfc_current_locus.lb);
 
       if (flag_openmp)
-	if (prev_openmp_flag != openmp_flag)
+	if (prev_openmp_flag != openmp_flag && !openacc_flag)
 	  {
 	    gfc_current_locus = old_loc;
 	    openmp_flag = prev_openmp_flag;
@@ -1340,7 +1361,7 @@ restart:
 	  }
 
       if (flag_openacc)
-	if (prev_openacc_flag != openacc_flag)
+	if (prev_openacc_flag != openacc_flag && !openmp_flag)
 	  {
 	    gfc_current_locus = old_loc;
 	    openacc_flag = prev_openacc_flag;
@@ -1359,7 +1380,7 @@ restart:
       while (gfc_is_whitespace (c))
 	c = next_char ();
 
-      if (openmp_flag)
+      if (openmp_flag && !openacc_flag)
 	{
 	  for (i = 0; i < 5; i++, c = next_char ())
 	    {
@@ -1370,7 +1391,7 @@ restart:
 	  while (gfc_is_whitespace (c))
 	    c = next_char ();
 	}
-      if (openacc_flag)
+      if (openacc_flag && !openmp_flag)
 	{
 	  for (i = 0; i < 5; i++, c = next_char ())
 	    {
@@ -1382,6 +1403,26 @@ restart:
 	    c = next_char ();
 	}
 
+      /* In case we have an OpenMP directive continued by OpenACC
+	 sentinel, or vice versa, we get both openmp_flag and
+	 openacc_flag on.  */
+
+      if (openacc_flag && openmp_flag)
+	{
+	  int is_openmp = 0;
+	  for (i = 0; i < 5; i++, c = next_char ())
+	    {
+	      if (gfc_wide_tolower (c) != (unsigned char) "!$acc"[i])
+		is_openmp = 1;
+	      if (i == 4)
+		old_loc = gfc_current_locus;
+	    }
+	  gfc_error (is_openmp ? "Wrong OpenACC continuation at %C: "
+		     "expected !$ACC, got !$OMP"
+		     : "Wrong OpenMP continuation at %C: "
+		     "expected !$OMP, got !$ACC");
+	}
+
       if (c != '&')
 	{
 	  if (in_string)
@@ -1444,18 +1485,36 @@ restart:
       skip_fixed_comments ();
 
       /* See if this line is a continuation line.  */
-      if (flag_openmp && openmp_flag != prev_openmp_flag)
+      if (flag_openmp && openmp_flag != prev_openmp_flag && !openacc_flag)
 	{
 	  openmp_flag = prev_openmp_flag;
 	  goto not_continuation;
 	}
-      if (flag_openacc && openacc_flag != prev_openacc_flag)
+      if (flag_openacc && openacc_flag != prev_openacc_flag && !openmp_flag)
 	{
 	  openacc_flag = prev_openacc_flag;
 	  goto not_continuation;
 	}
 
-      if (!openmp_flag && !openacc_flag)
+      /* In case we have an OpenMP directive continued by OpenACC
+	 sentinel, or vice versa, we get both openmp_flag and
+	 openacc_flag on.  */
+      if (openacc_flag && openmp_flag)
+	{
+	  locus saved_loc = gfc_current_locus;
+	  int is_openmp = 0;
+	  for (i = 0; i < 5; i++)
+	    {
+	      c = next_char ();
+	      if (gfc_wide_tolower (c) != (unsigned char) "*$acc"[i])
+		is_openmp = 1;
+	    }
+	  gfc_error (is_openmp ? "Wrong OpenACC continuation at %C: "
+		     "expected !$ACC, got !$OMP"
+		     : "Wrong OpenMP continuation at %C: "
+		     "expected !$OMP, got !$ACC");
+	}
+      else if (!openmp_flag && !openacc_flag)
 	for (i = 0; i < 5; i++)
 	  {
 	    c = next_char ();
diff --git a/gcc/testsuite/ChangeLog.gomp b/gcc/testsuite/ChangeLog.gomp
index 23a7632..1b2fafc 100644
--- a/gcc/testsuite/ChangeLog.gomp
+++ b/gcc/testsuite/ChangeLog.gomp
@@ -1,3 +1,10 @@
+2015-06-30  Ilmir Usmanov  <me@ilmir.us>
+
+	PR/63858
+	Fix mix of OpenACC and OpenMP sentinels in continuation.
+	* gfortran.dg/goacc/omp.f95: Add test case for free form.
+	* gfortran.dg/goacc/omp-fixed.f: New test for fixed form.
+
 2015-06-24  James Norris  <jnorris@codesourcery.com>
 
 	* c-c++-common/goacc/declare-1.c: Update tests.
diff --git a/gcc/testsuite/gfortran.dg/goacc/omp-fixed.f b/gcc/testsuite/gfortran.dg/goacc/omp-fixed.f
new file mode 100644
index 0000000..e715673
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/goacc/omp-fixed.f
@@ -0,0 +1,32 @@
+! { dg-do compile }
+! { dg-additional-options "-fopenmp" }
+      SUBROUTINE ICHI
+      INTEGER :: ARGC
+      ARGC = COMMAND_ARGUMENT_COUNT ()
+
+!$OMP PARALLEL
+!$ACC PARALLEL                                                          &
+!$ACC& COPYIN(ARGC) ! { dg-error "directive cannot be specified within" }
+      IF (ARGC .NE. 0) THEN
+         CALL ABORT
+      END IF
+!$ACC END PARALLEL
+!$OMP END PARALLEL
+
+      END SUBROUTINE ICHI
+
+
+      SUBROUTINE NI
+      IMPLICIT NONE
+      INTEGER :: I
+
+!$ACC PARALLEL                                                          &
+!$OMP& DO ! { dg-error "Wrong OpenACC continuation" }
+      DO I = 1, 10
+      ENDDO
+
+!$OMP PARALLEL                                                          &
+!$ACC& LOOP ! { dg-error "Wrong OpenMP continuation" }
+      DO I = 1, 10
+      ENDDO
+      END SUBROUTINE NI
diff --git a/gcc/testsuite/gfortran.dg/goacc/omp.f95 b/gcc/testsuite/gfortran.dg/goacc/omp.f95
index 24f639f..a7333eb 100644
--- a/gcc/testsuite/gfortran.dg/goacc/omp.f95
+++ b/gcc/testsuite/gfortran.dg/goacc/omp.f95
@@ -63,4 +63,12 @@ contains
      !$omp end parallel
      !$acc end data
    end subroutine roku
+
+   subroutine nana
+     !$acc parallel &
+     !$omp do ! { dg-error "Wrong OpenACC continuation" }
+
+     !$omp parallel &
+     !$acc loop ! { dg-error "Wrong OpenMP continuation" }
+   end subroutine nana
 end module test
\ No newline at end of file
-- 
1.8.4.5


       reply	other threads:[~2015-06-30  0:43 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <3008431435623821@web14j.yandex.ru>
2015-06-30  0:43 ` Ilmir Usmanov [this message]
     [not found]   ` <650751436268444@web22m.yandex.ru>
2015-07-14 21:20     ` Ilmir Usmanov
2015-07-14 21:24       ` Cesar Philippidis
2015-07-27 14:14   ` Thomas Schwinge
2015-10-09 10:15     ` [PR fortran/63858] Fix mix of OpenACC and OpenMP sentinels in continuations Thomas Schwinge
2015-10-19 17:09       ` Thomas Schwinge
2015-10-20  9:37       ` Jakub Jelinek
2015-11-25 14:33         ` Cesar Philippidis
2015-11-25 19:10           ` Bernhard Reutner-Fischer
     [not found] <6770611433710899@web6g.yandex.ru>
2015-06-07 21:06 ` [gomp4, fortran] Patch to fix continuation checks of OpenACC and OpenMP directives Ilmir Usmanov
2015-06-08 14:59   ` Cesar Philippidis

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