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* [gomp4] enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC
@ 2017-01-27 15:46 Cesar Philippidis
  2017-01-30 10:19 ` Thomas Schwinge
  2018-04-18  8:58 ` [og7, openacc, libgomp, testsuite] Fix asserts in firstprivate-int.{c,C} Tom de Vries
  0 siblings, 2 replies; 5+ messages in thread
From: Cesar Philippidis @ 2017-01-27 15:46 UTC (permalink / raw)
  To: gcc-patches, Fortran List

[-- Attachment #1: Type: text/plain, Size: 1658 bytes --]

This patch does the following two things:

 1) Enable GOMP_MAP_FIRSTPRIVATE_INT in OpenaCC.
 2) Extends the 'INT' values to handle floats and doubles via type
    casting.

OpenACC handles OMP_CLAUSE_FIRSTPRIVATE slightly different to OpenMP;
lower_omp_target changes it to a data map clause. Consequently, it
utilizes a different code path from OpenMP. The first part of this patch
is to enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC.

The second part involved extending GOMP_MAP_FIRSTPRIVATE_INT to support
floating point values. The scientific applications that are using
OpenACC tend to utilize a lot of floating point values. I'm not sure if
there are any repercussions/side-effects this form of casting.

If you take a close look at lower_omp_target, you'll notice that I'm
gave reference types special treatment. Specifically, I disabled this
optimization on non-INTEGER_TYPE and floating point values, because the
nvptx target was having some problems dereferencing boolean-typed
pointers. That's something I have on my TODO list to track down later.

As for the performance gains, this optimization resulted in a
non-trivial speedup in CloverLeaf running on a Nvidia Pascal board.
CloverLeaf is somewhat special in that it consists of a lot of OpenACC
offloaded regions which gets called multiple times throughout its
execution. Consequently, it is I/O limited. The other benchmarks I ran
didn't benefit nearly as much as CloverLeaf. I chose a small data set
for CloverLeaf that only ran in 1.3s without the patch, and hence make
it even more I/O limited. After the patch, it ran 0.35s faster.

This patch has been applied to gomp-4_0-branch.

Cesar


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2017-01-27  Cesar Philippidis  <cesar@codesourcery.com>

	gcc/
	* omp-low.c (maybe_lookup_field_in_outer_ctx): New function.
	(convert_to_firstprivate_pointer): New function.
	(convert_from_firstprivate_pointer): New function.
	(lower_omp_target): Enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC.

	libgomp/
	* plugin/plugin-nvptx.c (nvptx_exec): Make aware of
	GOMP_MAP_FIRSTPRIVATE_INT host addresses.
	* testsuite/libgomp.oacc-c++/firstprivate-int.C: New test.
	* testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c: New test.
	* testsuite/libgomp.oacc-fortran/firstprivate-int.f90: New test.


diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index 017f02a..adde8de 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -4359,6 +4359,19 @@ maybe_lookup_decl_in_outer_ctx (tree decl, omp_context *ctx)
   return t ? t : decl;
 }
 
+/* Returns true if DECL is present inside a field that encloses CTX.  */
+
+static bool
+maybe_lookup_field_in_outer_ctx (tree decl, omp_context *ctx)
+{
+  omp_context *up;
+
+  for (up = ctx->outer; up; up = up->outer)
+    if (maybe_lookup_field (decl, up))
+      return true;
+
+  return false;
+}
 
 /* Construct the initialization value for reduction operation OP.  */
 
@@ -16439,6 +16452,98 @@ lower_omp_taskreg (gimple_stmt_iterator *gsi_p, omp_context *ctx)
     }
 }
 
+/* Helper function for lower_omp_target.  Converts VAR to something
+   that can be represented by a POINTER_SIZED_INT_NODE.  Any new
+   instructions are appended to GS.  This is primarily used to
+   optimize firstprivate variables, so that small types (less
+   precision than POINTER_SIZE) do not require additional data
+   mappings. */
+
+static tree
+convert_to_firstprivate_pointer (tree var, gimple_seq *gs)
+{
+  tree type = TREE_TYPE (var), new_type = NULL_TREE;
+  tree tmp = NULL_TREE;
+
+  if (is_reference (var))
+    type = TREE_TYPE (type);
+
+  if (INTEGRAL_TYPE_P (type) || POINTER_TYPE_P (type))
+  {
+    if (is_reference (var))
+      {
+	tmp = create_tmp_var (type);
+	gimplify_assign (tmp, build_simple_mem_ref (var), gs);
+	var = tmp;
+      }
+
+    return fold_convert (pointer_sized_int_node, var);
+  }
+
+  switch (TYPE_PRECISION (type))
+    {
+    case 1: case 2: case 4: case 8: new_type = unsigned_char_type_node; break;
+    case 16: new_type = short_unsigned_type_node; break;
+    case 32: new_type = unsigned_type_node; break;
+    case 64: new_type = long_unsigned_type_node; break;
+    default: gcc_unreachable ();
+    }
+
+  if (is_reference (var))
+    {
+      tmp = create_tmp_var (type);
+      gimplify_assign (tmp, build_simple_mem_ref (var), gs);
+      var = tmp;
+    }
+
+  tmp = create_tmp_var (new_type);
+  var = fold_build1 (VIEW_CONVERT_EXPR, new_type, var);
+  gimplify_assign (tmp, var, gs);
+  var = fold_convert (pointer_sized_int_node, tmp);
+
+  return var;
+}
+
+/* Like convert_to_firstprivate_pointer, but restore the original type.  */
+
+static tree
+convert_from_firstprivate_pointer (tree var, bool is_ref, gimple_seq *gs)
+{
+  tree type = TREE_TYPE (var);
+  tree new_type = NULL_TREE;
+  tree tmp = NULL_TREE;
+  tree inner_type = NULL_TREE;
+
+  gcc_assert (TREE_CODE (var) == MEM_REF);
+  var = TREE_OPERAND (var, 0);
+
+  if (INTEGRAL_TYPE_P (var) || POINTER_TYPE_P (type))
+    return fold_convert (type, var);
+
+  switch (TYPE_PRECISION (type))
+    {
+    case 1: case 2: case 4: case 8: new_type = unsigned_char_type_node; break;
+    case 16: new_type = short_unsigned_type_node; break;
+    case 32: new_type = unsigned_type_node; break;
+    case 64: new_type = long_unsigned_type_node; break;
+    default: gcc_unreachable ();
+    }
+
+  tmp = create_tmp_var (new_type);
+  var = fold_convert (new_type, var);
+  gimplify_assign (tmp, var, gs);
+  var = fold_build1 (VIEW_CONVERT_EXPR, type, tmp);
+
+  if (is_ref)
+    {
+      tmp = create_tmp_var (build_pointer_type (type));
+      gimplify_assign (tmp, build_fold_addr_expr (var), gs);
+      var = tmp;
+    }
+
+  return var;
+}
+
 /* Lower the GIMPLE_OMP_TARGET in the current statement
    in GSI_P.  CTX holds context information for the directive.  */
 
@@ -16611,6 +16716,10 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 			   && OMP_CLAUSE_MAP_IN_REDUCTION (c)))
 	  {
 	    tree var_type = TREE_TYPE (var);
+	    tree new_var = lookup_decl (var, ctx);
+	    bool oacc_firstprivate_int = false;
+	    tree inner_type = is_reference (new_var)
+	      ? TREE_TYPE (var_type) : var_type;
 	    bool rcv_by_ref =
 	      (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
 	       && GOMP_MAP_DYNAMIC_ARRAY_P (OMP_CLAUSE_MAP_KIND (c))
@@ -16618,24 +16727,35 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 	       ? false : true);
 
 	    x = build_receiver_ref (var, rcv_by_ref, ctx);
-	    tree new_var = lookup_decl (var, ctx);
+
+	    if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE
+		&& (TREE_CODE (inner_type) == REAL_TYPE
+		    || (!is_reference (var) && INTEGRAL_TYPE_P (inner_type))
+		    || TREE_CODE (inner_type) == INTEGER_TYPE)
+		&& TYPE_PRECISION (inner_type) <= POINTER_SIZE
+		&& TYPE_PRECISION (inner_type) != 0
+		&& !maybe_lookup_field_in_outer_ctx (var, ctx))
+	      oacc_firstprivate_int = true;
 
 	    if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
 		&& OMP_CLAUSE_MAP_KIND (c) == GOMP_MAP_POINTER
 		&& !OMP_CLAUSE_MAP_ZERO_BIAS_ARRAY_SECTION (c)
-		&& TREE_CODE (TREE_TYPE (var)) == ARRAY_TYPE)
+		&& TREE_CODE (var_type) == ARRAY_TYPE
+		&& !oacc_firstprivate_int)
 	      x = build_simple_mem_ref (x);
 	    if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE)
 	      {
 		gcc_assert (is_gimple_omp_oacc (ctx->stmt));
-		if (is_reference (new_var)
-		    && TREE_CODE (TREE_TYPE (new_var)) != POINTER_TYPE)
+		if (oacc_firstprivate_int)
+		  x = convert_from_firstprivate_pointer (x, is_reference (var),
+							 &fplist);
+		else if (is_reference (new_var)
+		    && TREE_CODE (var_type) != POINTER_TYPE)
 		  {
 		    /* Create a local object to hold the instance
 		       value.  */
-		    tree type = TREE_TYPE (TREE_TYPE (new_var));
 		    const char *id = IDENTIFIER_POINTER (DECL_NAME (new_var));
-		    tree inst = create_tmp_var (type, id);
+		    tree inst = create_tmp_var (TREE_TYPE (var_type), id);
 		    gimplify_assign (inst, fold_indirect_ref (x), &fplist);
 		    x = build_fold_addr_expr (inst);
 		  }
@@ -16790,6 +16910,7 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 	  {
 	    tree ovar, nc, s, purpose, var, x, type;
 	    unsigned int talign;
+	    bool oacc_firstprivate_int;
 
 	  default:
 	    break;
@@ -16798,6 +16919,7 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 	  case OMP_CLAUSE_TO:
 	  case OMP_CLAUSE_FROM:
 	  oacc_firstprivate_map:
+	    oacc_firstprivate_int = false;
 	    nc = c;
 	    ovar = OMP_CLAUSE_DECL (c);
 	    if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
@@ -16882,8 +17004,25 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 		  }
 		else if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE)
 		  {
+		    tree type = TREE_TYPE (var);
+		    tree inner_type = is_reference (var)
+		      ? TREE_TYPE (type) : type;
 		    gcc_checking_assert (is_gimple_omp_oacc (ctx->stmt));
-		    if (!is_reference (var))
+		    if ((TREE_CODE (inner_type) == REAL_TYPE
+			 || (!is_reference (var)
+			     && INTEGRAL_TYPE_P (inner_type))
+			 || TREE_CODE (inner_type) == INTEGER_TYPE)
+			&& TYPE_PRECISION (inner_type) <= POINTER_SIZE
+			&& TYPE_PRECISION (inner_type) != 0
+			&& !maybe_lookup_field_in_outer_ctx (var, ctx))
+		      {
+			oacc_firstprivate_int = true;
+			if (is_gimple_reg (var)
+			    && OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT (c))
+			  TREE_NO_WARNING (var) = 1;
+			var = convert_to_firstprivate_pointer (var, &ilist);
+		      }
+		    else if (!is_reference (var))
 		      {
 			if (is_gimple_reg (var)
 			    && OMP_CLAUSE_FIRSTPRIVATE_IMPLICIT (c))
@@ -16935,10 +17074,15 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 	    if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_FIRSTPRIVATE)
 	      {
 		gcc_checking_assert (is_gimple_omp_oacc (ctx->stmt));
-		s = TREE_TYPE (ovar);
-		if (TREE_CODE (s) == REFERENCE_TYPE)
-		  s = TREE_TYPE (s);
-		s = TYPE_SIZE_UNIT (s);
+		if (oacc_firstprivate_int)
+		  s = size_int (0);
+		else
+		  {
+		    s = TREE_TYPE (ovar);
+		    if (TREE_CODE (s) == REFERENCE_TYPE)
+		      s = TREE_TYPE (s);
+		    s = TYPE_SIZE_UNIT (s);
+		  }
 	      }
 	    else if (OMP_CLAUSE_CODE (c) == OMP_CLAUSE_MAP
 		     && (OMP_CLAUSE_MAP_KIND (c) & GOMP_MAP_DYNAMIC_ARRAY))
@@ -16997,7 +17141,10 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 		break;
 	      case OMP_CLAUSE_FIRSTPRIVATE:
 		gcc_checking_assert (is_gimple_omp_oacc (ctx->stmt));
-		tkind = GOMP_MAP_TO;
+		if (oacc_firstprivate_int)
+		  tkind = GOMP_MAP_FIRSTPRIVATE_INT;
+		else
+		  tkind = GOMP_MAP_TO;
 		tkind_zero = tkind;
 		break;
 	      case OMP_CLAUSE_TO:
diff --git a/libgomp/plugin/plugin-nvptx.c b/libgomp/plugin/plugin-nvptx.c
index c435012..a05b399 100644
--- a/libgomp/plugin/plugin-nvptx.c
+++ b/libgomp/plugin/plugin-nvptx.c
@@ -1018,7 +1018,7 @@ nvptx_exec (void (*fn), size_t mapnum, void **hostaddrs, void **devaddrs,
   /* Copy the array of arguments to the mapped page.  */
   hp = alloca(sizeof(void *) * mapnum);
   for (i = 0; i < mapnum; i++)
-    ((void **) hp)[i] = devaddrs[i];
+    ((void **) hp)[i] = devaddrs[i] != 0 ? devaddrs[i] : hostaddrs[i];
 
   /* Copy the (device) pointers to arguments to the device (dp and hp might in
      fact have the same value on a unified-memory system).  */
diff --git a/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C b/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C
new file mode 100644
index 0000000..94667b5
--- /dev/null
+++ b/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C
@@ -0,0 +1,83 @@
+/* Verify the GOMP_MAP_FIRSTPRIVATE_INT optimziation on various types.
+   This test is similer to the test in libgomp.oacc-c-c++-common, but
+   it focuses on reference types. */
+
+#include <assert.h>
+#include <stdint.h>
+#include <complex.h>
+
+void test_ref (int8_t &i8i, int8_t &i8o, int16_t &i16i, int16_t &i16o,
+	       int32_t &i32i, int32_t &i32o, int64_t &i64i, int64_t &i64o,
+	       uint8_t &u8i, uint8_t &u8o, uint16_t &u16i, uint16_t &u16o,
+	       uint32_t &u32i, uint32_t &u32o, uint64_t &u64i, uint64_t &u64o,
+	       float &r32i, float &r32o, double &r64i, double &r64o,
+	       int _Complex &cii, int _Complex &cio,
+	       float _Complex &cfi, float _Complex &cfo,
+	       double _Complex &cdi, double _Complex &cdo)
+{
+#pragma acc parallel firstprivate (i8i,i16i,i32i,i64i,u8i,u16i,u32i,u64i) \
+  firstprivate(r32i,r64i,cii,cfi,cdi) copyout(i8o,i16o,i32o,i64o) \
+  copyout(u8o,u16o,u32o,u64o,r32o,r64o,cio,cfo,cdo) num_gangs(1)
+  {
+    i8o = i8i;
+    i16o = i16i;
+    i32o = i32i;
+    i64o = i64i;
+
+    u8o = u8i;
+    u16o = u16i;
+    u32o = u32i;
+    u64o = u64i;
+
+    r32o = r32i;
+    r64o = r64i;
+
+    cio = cii;
+    cfo = cfi;
+    cdo = cdi;
+  }
+}
+
+int
+main ()
+{
+  int8_t  i8i  = -1, i8o;
+  int16_t i16i = -2, i16o;
+  int32_t i32i = -3, i32o;
+  int64_t i64i = -4, i64o;
+
+  uint8_t  u8i  = 1,  u8o;
+  uint16_t u16i = 2, u16o;
+  uint32_t u32i = 3, u32o;
+  uint64_t u64i = 4, u64o;
+
+  float  r32i = .5, r32o;
+  double r64i = .25, r64o;
+
+  int _Complex    cii = 2, cio;
+  float _Complex  cfi = 4, cfo;
+  double _Complex cdi = 8, cdo;
+
+  test_ref (i8i, i8o, i16i, i16o, i32i, i32o, i64i, i64o, u8i, u8o, u16i,
+	    u16o, u32i, u32o, u64i, u64o, r32i, r32o, r64i, r64o, cii, cio,
+	    cfi, cfo, cdi, cdo);
+
+  assert(i8o = i8i);
+  assert(i16o = i16i);
+  assert(i32o = i32i);
+  assert(i64o = i64i);
+
+  assert(u8o = u8i);
+  assert(u16o = u16i);
+  assert(u32o = u32i);
+  assert(u64o = u64i);
+
+  assert(r32o = r32i);
+  assert(r64o = r64i);
+
+  assert(cio = cii);
+  assert(cfo = cfi);
+  assert(cdo = cdi);
+
+  return 0;
+}
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c
new file mode 100644
index 0000000..d9da9a0
--- /dev/null
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c
@@ -0,0 +1,67 @@
+/* Verify the GOMP_MAP_FIRSTPRIVATE_INT optimziation on various types.  */
+
+#include <assert.h>
+#include <stdint.h>
+#include <complex.h>
+
+int
+main ()
+{
+  int8_t  i8i  = -1, i8o;
+  int16_t i16i = -2, i16o;
+  int32_t i32i = -3, i32o;
+  int64_t i64i = -4, i64o;
+
+  uint8_t  u8i  = 1,  u8o;
+  uint16_t u16i = 2, u16o;
+  uint32_t u32i = 3, u32o;
+  uint64_t u64i = 4, u64o;
+
+  float  r32i = .5, r32o;
+  double r64i = .25, r64o;
+
+  int _Complex    cii = 2, cio;
+  float _Complex  cfi = 4, cfo;
+  double _Complex cdi = 8, cdo;
+
+#pragma acc parallel firstprivate (i8i,i16i,i32i,i64i,u8i,u16i,u32i,u64i) \
+  firstprivate(r32i,r64i,cii,cfi,cdi) copyout(i8o,i16o,i32o,i64o) \
+  copyout(u8o,u16o,u32o,u64o,r32o,r64o,cio,cfo,cdo) num_gangs(1)
+  {
+    i8o = i8i;
+    i16o = i16i;
+    i32o = i32i;
+    i64o = i64i;
+
+    u8o = u8i;
+    u16o = u16i;
+    u32o = u32i;
+    u64o = u64i;
+
+    r32o = r32i;
+    r64o = r64i;
+
+    cio = cii;
+    cfo = cfi;
+    cdo = cdi;
+  }
+
+  assert(i8o = i8i);
+  assert(i16o = i16i);
+  assert(i32o = i32i);
+  assert(i64o = i64i);
+
+  assert(u8o = u8i);
+  assert(u16o = u16i);
+  assert(u32o = u32i);
+  assert(u64o = u64i);
+
+  assert(r32o = r32i);
+  assert(r64o = r64i);
+
+  assert(cio = cii);
+  assert(cfo = cfi);
+  assert(cdo = cdi);
+
+  return 0;
+}
diff --git a/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90 b/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90
new file mode 100644
index 0000000..3408d3d
--- /dev/null
+++ b/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90
@@ -0,0 +1,203 @@
+! Verify the GOMP_MAP_FIRSTPRIVATE_INT optimziation on various types.
+
+program test
+  implicit none
+
+  integer (kind=1)  :: i1i, i1o
+  integer (kind=2)  :: i2i, i2o
+  integer (kind=4)  :: i4i, i4o
+  integer (kind=8)  :: i8i, i8o
+  integer (kind=16) :: i16i, i16o
+
+  logical (kind=1)  :: l1i, l1o
+  logical (kind=2)  :: l2i, l2o
+  logical (kind=4)  :: l4i, l4o
+  logical (kind=8)  :: l8i, l8o
+  logical (kind=16) :: l16i, l16o
+
+  real (kind=4)  :: r4i, r4o
+  real (kind=8)  :: r8i, r8o
+
+  complex (kind=4)  :: c4i, c4o
+  complex (kind=8)  :: c8i, c8o
+
+  character (kind=1) :: ch1i, ch1o
+  character (kind=4) :: ch4i, ch4o
+
+  i1i = 1
+  i2i = 2
+  i4i = 3
+  i8i = 4
+  i16i = 5
+
+  l1i = .true.
+  l2i = .false.
+  l4i = .true.
+  l8i = .true.
+  l16i = .false.
+
+  r4i = .5
+  r8i = .25
+
+  c4i = (2, -2)
+  c8i = (4, -4)
+
+  ch1i = "a"
+  ch4i = "b"
+
+  !$acc parallel firstprivate(i1i, i2i, i4i, i8i, i16i) &
+  !$acc copyout(i1o, i2o, i4o, i8o, i16o) &
+  !$acc firstprivate(l1i, l2i, l4i, l8i, l16i) &
+  !$acc copyout(l1o, l2o, l4o, l8o, l16o) &
+  !$acc firstprivate(r4i, r8i) copyout(r4o, r8o) &
+  !$acc firstprivate(c4i, c8i) copyout(c4o, c8o) &
+  !$acc firstprivate(ch1i, ch4i) &
+  !$acc copyout(ch1o, ch4o)
+  i1o = i1i
+  i2o = i2i
+  i4o = i4i
+  i8o = i8i
+  i16o = i16i
+
+  l1o = l1i
+  l2o = l2i
+  l4o = l4i
+  l8o = l8i
+  l16o = l16i
+
+  r4o = r4i
+  r8o = r8i
+
+  c4o = c4i
+  c8o = c8i
+
+  ch1o = ch1i
+  ch4o = ch4i
+  !$acc end parallel
+
+  if (i1i /= i1o) call abort
+  if (i2i /= i2o) call abort
+  if (i4i /= i4o) call abort
+  if (i8i /= i8o) call abort
+  if (i16i /= i16o) call abort
+
+  if (l1i .neqv. l1o) call abort
+  if (l2i .neqv. l2o) call abort
+  if (l4i .neqv. l4o) call abort
+  if (l8i .neqv. l8o) call abort
+  if (l16i .neqv. l16o) call abort
+
+  if (r4i /= r4o) call abort
+  if (r8i /= r8o) call abort
+
+  if (c4i /= c4o) call abort
+  if (c8i /= c8o) call abort
+
+  if (ch1i /= ch1o) call abort
+  if (ch4i /= ch4o) call abort
+
+  call subtest(i1i, i2i, i4i, i8i, i16i, i1o, i2o, i4o, i8o, i16o, &
+               l1i, l2i, l4i, l8i, l16i, l1o, l2o, l4o, l8o, l16o, &
+               r4i, r8i, r4o, r8o, c4i, c8i, c4o, c8o, &
+               ch1i, ch4i, ch1o, ch4o)
+end program test
+
+subroutine subtest(i1i, i2i, i4i, i8i, i16i, i1o, i2o, i4o, i8o, i16o, &
+                   l1i, l2i, l4i, l8i, l16i, l1o, l2o, l4o, l8o, l16o, &
+                   r4i, r8i, r4o, r8o, c4i, c8i, c4o, c8o, &
+                   ch1i, ch4i, ch1o, ch4o)
+  implicit none
+
+  integer (kind=1)  :: i1i, i1o
+  integer (kind=2)  :: i2i, i2o
+  integer (kind=4)  :: i4i, i4o
+  integer (kind=8)  :: i8i, i8o
+  integer (kind=16) :: i16i, i16o
+
+  logical (kind=1)  :: l1i, l1o
+  logical (kind=2)  :: l2i, l2o
+  logical (kind=4)  :: l4i, l4o
+  logical (kind=8)  :: l8i, l8o
+  logical (kind=16) :: l16i, l16o
+
+  real (kind=4)  :: r4i, r4o
+  real (kind=8)  :: r8i, r8o
+
+  complex (kind=4)  :: c4i, c4o
+  complex (kind=8)  :: c8i, c8o
+
+  character (kind=1) :: ch1i, ch1o
+  character (kind=4) :: ch4i, ch4o
+
+  i1i = -i1i
+  i2i = -i2i
+  i4i = -i4i
+  i8i = -i8i
+  i16i = -i16i
+
+  l1i = .not. l1i
+  l2i = .not. l2i
+  l4i = .not. l4i
+  l8i = .not. l8i
+  l16i = .not. l16i
+
+  r4i = -r4i
+  r8i = -r8i
+
+  c4i = -c4i
+  c8i = -c8i
+
+  ch1i = "z"
+  ch4i = "y"
+
+  !$acc parallel firstprivate(i1i, i2i, i4i, i8i, i16i) &
+  !$acc copyout(i1o, i2o, i4o, i8o, i16o) &
+  !$acc firstprivate(l1i, l2i, l4i, l8i, l16i) &
+  !$acc copyout(l1o, l2o, l4o, l8o, l16o) &
+  !$acc firstprivate(r4i, r8i) copyout(r4o, r8o) &
+  !$acc firstprivate(c4i, c8i) copyout(c4o, c8o) &
+  !$acc firstprivate(ch1i, ch4i) &
+  !$acc copyout(ch1o, ch4o)
+  i1o = i1i
+  i2o = i2i
+  i4o = i4i
+  i8o = i8i
+  i16o = i16i
+
+  l1o = l1i
+  l2o = l2i
+  l4o = l4i
+  l8o = l8i
+  l16o = l16i
+
+  r4o = r4i
+  r8o = r8i
+
+  c4o = c4i
+  c8o = c8i
+
+  ch1o = ch1i
+  ch4o = ch4i
+  !$acc end parallel
+
+  if (i1i /= i1o) call abort
+  if (i2i /= i2o) call abort
+  if (i4i /= i4o) call abort
+  if (i8i /= i8o) call abort
+  if (i16i /= i16o) call abort
+
+  if (l1i .neqv. l1o) call abort
+  if (l2i .neqv. l2o) call abort
+  if (l4i .neqv. l4o) call abort
+  if (l8i .neqv. l8o) call abort
+  if (l16i .neqv. l16o) call abort
+
+  if (r4i /= r4o) call abort
+  if (r8i /= r8o) call abort
+
+  if (c4i /= c4o) call abort
+  if (c8i /= c8o) call abort
+
+  if (ch1i /= ch1o) call abort
+  if (ch4i /= ch4o) call abort
+end subroutine subtest

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [gomp4] enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC
  2017-01-27 15:46 [gomp4] enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC Cesar Philippidis
@ 2017-01-30 10:19 ` Thomas Schwinge
  2017-02-01 17:58   ` Cesar Philippidis
  2017-02-10 12:54   ` Tom de Vries
  2018-04-18  8:58 ` [og7, openacc, libgomp, testsuite] Fix asserts in firstprivate-int.{c,C} Tom de Vries
  1 sibling, 2 replies; 5+ messages in thread
From: Thomas Schwinge @ 2017-01-30 10:19 UTC (permalink / raw)
  To: Cesar Philippidis; +Cc: gcc-patches, Fortran List

Hi Cesar!

On Fri, 27 Jan 2017 07:45:52 -0800, Cesar Philippidis <cesar@codesourcery.com> wrote:
> If you take a close look at lower_omp_target, you'll notice that I'm
> gave reference types special treatment. Specifically, I disabled this
> optimization on non-INTEGER_TYPE and floating point values, because the
> nvptx target was having some problems dereferencing boolean-typed
> pointers. That's something I have on my TODO list to track down later.

Please file an issue as appropriate.

> As for the performance gains, this optimization resulted in a
> non-trivial speedup in CloverLeaf running on a Nvidia Pascal board.
> CloverLeaf is somewhat special in that it consists of a lot of OpenACC
> offloaded regions which gets called multiple times throughout its
> execution. Consequently, it is I/O limited. The other benchmarks I ran
> didn't benefit nearly as much as CloverLeaf. I chose a small data set
> for CloverLeaf that only ran in 1.3s without the patch, and hence make
> it even more I/O limited. After the patch, it ran 0.35s faster.

\o/ Yay!

> This patch has been applied to gomp-4_0-branch.

(Not reviewed in detail.)

> --- a/gcc/omp-low.c
> +++ b/gcc/omp-low.c

> +static tree
> +convert_from_firstprivate_pointer (tree var, bool is_ref, gimple_seq *gs)
> +{
> +  tree type = TREE_TYPE (var);
> +  tree new_type = NULL_TREE;
> +  tree tmp = NULL_TREE;
> +  tree inner_type = NULL_TREE;

    [...]/source-gcc/gcc/omp-low.c: In function 'tree_node* convert_from_firstprivate_pointer(tree, bool, gimple**)':
    [...]/source-gcc/gcc/omp-low.c:16515:8: warning: unused variable 'inner_type' [-Wunused-variable]


> --- /dev/null
> +++ b/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90

I see:

    {+FAIL: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O  (internal compiler error)+}
    {+FAIL: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O   4 blank line(s) in output+}
    {+FAIL: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O  (test for excess errors)+}
    {+UNRESOLVED: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O  compilation failed to produce executable+}

That's the nvptx offloading compiler configured with
"--enable-checking=yes,df,fold,rtl":

    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90: In function 'MAIN__._omp_fn.1':
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: error: conversion of register to a different size
    VIEW_CONVERT_EXPR<logical(kind=2)>(_17);
    
    _18 = VIEW_CONVERT_EXPR<logical(kind=2)>(_17);
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: error: conversion of register to a different size
    VIEW_CONVERT_EXPR<logical(kind=4)>(_20);
    
    _21 = VIEW_CONVERT_EXPR<logical(kind=4)>(_20);
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: error: conversion of register to a different size
    VIEW_CONVERT_EXPR<logical(kind=8)>(_23);
    
    _24 = VIEW_CONVERT_EXPR<logical(kind=8)>(_23);
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: error: conversion of register to a different size
    VIEW_CONVERT_EXPR<logical(kind=16)>(_26);
    
    _27 = VIEW_CONVERT_EXPR<logical(kind=16)>(_26);
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: internal compiler error: verify_gimple failed
    0xa67d75 verify_gimple_in_cfg(function*, bool)
            [...]/source-gcc/gcc/tree-cfg.c:5125
    0x94ebbc execute_function_todo
            [...]/source-gcc/gcc/passes.c:1958
    0x94f513 execute_todo
            [...]/source-gcc/gcc/passes.c:2010


And with "-m32" multilib testing, I see:

    {+FAIL: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O  (test for excess errors)+}
    {+UNRESOLVED: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O  compilation failed to produce executable+}

That is:

    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:10:18: Error: Kind 16 not supported for type INTEGER at (1)
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:16:18: Error: Kind 16 not supported for type LOGICAL at (1)
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:115:18: Error: Kind 16 not supported for type INTEGER at (1)
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:121:18: Error: Kind 16 not supported for type LOGICAL at (1)
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:31:6: Error: Symbol 'i16i' at (1) has no IMPLICIT type
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:49:40: Error: Symbol 'i16o' at (1) has no IMPLICIT type
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:37:6: Error: Symbol 'l16i' at (1) has no IMPLICIT type
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:51:40: Error: Symbol 'l16o' at (1) has no IMPLICIT type
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:105:43: Error: Symbol 'i16i' at (1) has no IMPLICIT type
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:105:69: Error: Symbol 'i16o' at (1) has no IMPLICIT type
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:106:43: Error: Symbol 'l16i' at (1) has no IMPLICIT type
    [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:106:69: Error: Symbol 'l16o' at (1) has no IMPLICIT type


Grüße
 Thomas


> @@ -0,0 +1,203 @@
> +! Verify the GOMP_MAP_FIRSTPRIVATE_INT optimziation on various types.
> +
> +program test
> +  implicit none
> +
> +  integer (kind=1)  :: i1i, i1o
> +  integer (kind=2)  :: i2i, i2o
> +  integer (kind=4)  :: i4i, i4o
> +  integer (kind=8)  :: i8i, i8o
> +  integer (kind=16) :: i16i, i16o
> +
> +  logical (kind=1)  :: l1i, l1o
> +  logical (kind=2)  :: l2i, l2o
> +  logical (kind=4)  :: l4i, l4o
> +  logical (kind=8)  :: l8i, l8o
> +  logical (kind=16) :: l16i, l16o
> +
> +  real (kind=4)  :: r4i, r4o
> +  real (kind=8)  :: r8i, r8o
> +
> +  complex (kind=4)  :: c4i, c4o
> +  complex (kind=8)  :: c8i, c8o
> +
> +  character (kind=1) :: ch1i, ch1o
> +  character (kind=4) :: ch4i, ch4o
> +
> +  i1i = 1
> +  i2i = 2
> +  i4i = 3
> +  i8i = 4
> +  i16i = 5
> +
> +  l1i = .true.
> +  l2i = .false.
> +  l4i = .true.
> +  l8i = .true.
> +  l16i = .false.
> +
> +  r4i = .5
> +  r8i = .25
> +
> +  c4i = (2, -2)
> +  c8i = (4, -4)
> +
> +  ch1i = "a"
> +  ch4i = "b"
> +
> +  !$acc parallel firstprivate(i1i, i2i, i4i, i8i, i16i) &
> +  !$acc copyout(i1o, i2o, i4o, i8o, i16o) &
> +  !$acc firstprivate(l1i, l2i, l4i, l8i, l16i) &
> +  !$acc copyout(l1o, l2o, l4o, l8o, l16o) &
> +  !$acc firstprivate(r4i, r8i) copyout(r4o, r8o) &
> +  !$acc firstprivate(c4i, c8i) copyout(c4o, c8o) &
> +  !$acc firstprivate(ch1i, ch4i) &
> +  !$acc copyout(ch1o, ch4o)
> +  i1o = i1i
> +  i2o = i2i
> +  i4o = i4i
> +  i8o = i8i
> +  i16o = i16i
> +
> +  l1o = l1i
> +  l2o = l2i
> +  l4o = l4i
> +  l8o = l8i
> +  l16o = l16i
> +
> +  r4o = r4i
> +  r8o = r8i
> +
> +  c4o = c4i
> +  c8o = c8i
> +
> +  ch1o = ch1i
> +  ch4o = ch4i
> +  !$acc end parallel
> +
> +  if (i1i /= i1o) call abort
> +  if (i2i /= i2o) call abort
> +  if (i4i /= i4o) call abort
> +  if (i8i /= i8o) call abort
> +  if (i16i /= i16o) call abort
> +
> +  if (l1i .neqv. l1o) call abort
> +  if (l2i .neqv. l2o) call abort
> +  if (l4i .neqv. l4o) call abort
> +  if (l8i .neqv. l8o) call abort
> +  if (l16i .neqv. l16o) call abort
> +
> +  if (r4i /= r4o) call abort
> +  if (r8i /= r8o) call abort
> +
> +  if (c4i /= c4o) call abort
> +  if (c8i /= c8o) call abort
> +
> +  if (ch1i /= ch1o) call abort
> +  if (ch4i /= ch4o) call abort
> +
> +  call subtest(i1i, i2i, i4i, i8i, i16i, i1o, i2o, i4o, i8o, i16o, &
> +               l1i, l2i, l4i, l8i, l16i, l1o, l2o, l4o, l8o, l16o, &
> +               r4i, r8i, r4o, r8o, c4i, c8i, c4o, c8o, &
> +               ch1i, ch4i, ch1o, ch4o)
> +end program test
> +
> +subroutine subtest(i1i, i2i, i4i, i8i, i16i, i1o, i2o, i4o, i8o, i16o, &
> +                   l1i, l2i, l4i, l8i, l16i, l1o, l2o, l4o, l8o, l16o, &
> +                   r4i, r8i, r4o, r8o, c4i, c8i, c4o, c8o, &
> +                   ch1i, ch4i, ch1o, ch4o)
> +  implicit none
> +
> +  integer (kind=1)  :: i1i, i1o
> +  integer (kind=2)  :: i2i, i2o
> +  integer (kind=4)  :: i4i, i4o
> +  integer (kind=8)  :: i8i, i8o
> +  integer (kind=16) :: i16i, i16o
> +
> +  logical (kind=1)  :: l1i, l1o
> +  logical (kind=2)  :: l2i, l2o
> +  logical (kind=4)  :: l4i, l4o
> +  logical (kind=8)  :: l8i, l8o
> +  logical (kind=16) :: l16i, l16o
> +
> +  real (kind=4)  :: r4i, r4o
> +  real (kind=8)  :: r8i, r8o
> +
> +  complex (kind=4)  :: c4i, c4o
> +  complex (kind=8)  :: c8i, c8o
> +
> +  character (kind=1) :: ch1i, ch1o
> +  character (kind=4) :: ch4i, ch4o
> +
> +  i1i = -i1i
> +  i2i = -i2i
> +  i4i = -i4i
> +  i8i = -i8i
> +  i16i = -i16i
> +
> +  l1i = .not. l1i
> +  l2i = .not. l2i
> +  l4i = .not. l4i
> +  l8i = .not. l8i
> +  l16i = .not. l16i
> +
> +  r4i = -r4i
> +  r8i = -r8i
> +
> +  c4i = -c4i
> +  c8i = -c8i
> +
> +  ch1i = "z"
> +  ch4i = "y"
> +
> +  !$acc parallel firstprivate(i1i, i2i, i4i, i8i, i16i) &
> +  !$acc copyout(i1o, i2o, i4o, i8o, i16o) &
> +  !$acc firstprivate(l1i, l2i, l4i, l8i, l16i) &
> +  !$acc copyout(l1o, l2o, l4o, l8o, l16o) &
> +  !$acc firstprivate(r4i, r8i) copyout(r4o, r8o) &
> +  !$acc firstprivate(c4i, c8i) copyout(c4o, c8o) &
> +  !$acc firstprivate(ch1i, ch4i) &
> +  !$acc copyout(ch1o, ch4o)
> +  i1o = i1i
> +  i2o = i2i
> +  i4o = i4i
> +  i8o = i8i
> +  i16o = i16i
> +
> +  l1o = l1i
> +  l2o = l2i
> +  l4o = l4i
> +  l8o = l8i
> +  l16o = l16i
> +
> +  r4o = r4i
> +  r8o = r8i
> +
> +  c4o = c4i
> +  c8o = c8i
> +
> +  ch1o = ch1i
> +  ch4o = ch4i
> +  !$acc end parallel
> +
> +  if (i1i /= i1o) call abort
> +  if (i2i /= i2o) call abort
> +  if (i4i /= i4o) call abort
> +  if (i8i /= i8o) call abort
> +  if (i16i /= i16o) call abort
> +
> +  if (l1i .neqv. l1o) call abort
> +  if (l2i .neqv. l2o) call abort
> +  if (l4i .neqv. l4o) call abort
> +  if (l8i .neqv. l8o) call abort
> +  if (l16i .neqv. l16o) call abort
> +
> +  if (r4i /= r4o) call abort
> +  if (r8i /= r8o) call abort
> +
> +  if (c4i /= c4o) call abort
> +  if (c8i /= c8o) call abort
> +
> +  if (ch1i /= ch1o) call abort
> +  if (ch4i /= ch4o) call abort
> +end subroutine subtest

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [gomp4] enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC
  2017-01-30 10:19 ` Thomas Schwinge
@ 2017-02-01 17:58   ` Cesar Philippidis
  2017-02-10 12:54   ` Tom de Vries
  1 sibling, 0 replies; 5+ messages in thread
From: Cesar Philippidis @ 2017-02-01 17:58 UTC (permalink / raw)
  To: Thomas Schwinge; +Cc: gcc-patches, Fortran List

[-- Attachment #1: Type: text/plain, Size: 6321 bytes --]

On 01/30/2017 02:18 AM, Thomas Schwinge wrote:
> Hi Cesar!
> 
> On Fri, 27 Jan 2017 07:45:52 -0800, Cesar Philippidis <cesar@codesourcery.com> wrote:
>> If you take a close look at lower_omp_target, you'll notice that I'm
>> gave reference types special treatment. Specifically, I disabled this
>> optimization on non-INTEGER_TYPE and floating point values, because the
>> nvptx target was having some problems dereferencing boolean-typed
>> pointers. That's something I have on my TODO list to track down later.
> 
> Please file an issue as appropriate.

I filed an issue for this internally.

>> As for the performance gains, this optimization resulted in a
>> non-trivial speedup in CloverLeaf running on a Nvidia Pascal board.
>> CloverLeaf is somewhat special in that it consists of a lot of OpenACC
>> offloaded regions which gets called multiple times throughout its
>> execution. Consequently, it is I/O limited. The other benchmarks I ran
>> didn't benefit nearly as much as CloverLeaf. I chose a small data set
>> for CloverLeaf that only ran in 1.3s without the patch, and hence make
>> it even more I/O limited. After the patch, it ran 0.35s faster.
> 
> \o/ Yay!
> 
>> This patch has been applied to gomp-4_0-branch.
> 
> (Not reviewed in detail.)
> 
>> --- a/gcc/omp-low.c
>> +++ b/gcc/omp-low.c
> 
>> +static tree
>> +convert_from_firstprivate_pointer (tree var, bool is_ref, gimple_seq *gs)
>> +{
>> +  tree type = TREE_TYPE (var);
>> +  tree new_type = NULL_TREE;
>> +  tree tmp = NULL_TREE;
>> +  tree inner_type = NULL_TREE;
> 
>     [...]/source-gcc/gcc/omp-low.c: In function 'tree_node* convert_from_firstprivate_pointer(tree, bool, gimple**)':
>     [...]/source-gcc/gcc/omp-low.c:16515:8: warning: unused variable 'inner_type' [-Wunused-variable]
> 
> 
>> --- /dev/null
>> +++ b/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90
> 
> I see:
> 
>     {+FAIL: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O  (internal compiler error)+}
>     {+FAIL: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O   4 blank line(s) in output+}
>     {+FAIL: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O  (test for excess errors)+}
>     {+UNRESOLVED: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_nvidia=1 -DACC_MEM_SHARED=0 -foffload=nvptx-none  -O  compilation failed to produce executable+}
> 
> That's the nvptx offloading compiler configured with
> "--enable-checking=yes,df,fold,rtl":
> 
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90: In function 'MAIN__._omp_fn.1':
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: error: conversion of register to a different size
>     VIEW_CONVERT_EXPR<logical(kind=2)>(_17);
>     
>     _18 = VIEW_CONVERT_EXPR<logical(kind=2)>(_17);
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: error: conversion of register to a different size
>     VIEW_CONVERT_EXPR<logical(kind=4)>(_20);
>     
>     _21 = VIEW_CONVERT_EXPR<logical(kind=4)>(_20);
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: error: conversion of register to a different size
>     VIEW_CONVERT_EXPR<logical(kind=8)>(_23);
>     
>     _24 = VIEW_CONVERT_EXPR<logical(kind=8)>(_23);
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: error: conversion of register to a different size
>     VIEW_CONVERT_EXPR<logical(kind=16)>(_26);
>     
>     _27 = VIEW_CONVERT_EXPR<logical(kind=16)>(_26);
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:55:0: internal compiler error: verify_gimple failed
>     0xa67d75 verify_gimple_in_cfg(function*, bool)
>             [...]/source-gcc/gcc/tree-cfg.c:5125
>     0x94ebbc execute_function_todo
>             [...]/source-gcc/gcc/passes.c:1958
>     0x94f513 execute_todo
>             [...]/source-gcc/gcc/passes.c:2010
> 
> 
> And with "-m32" multilib testing, I see:
> 
>     {+FAIL: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O  (test for excess errors)+}
>     {+UNRESOLVED: libgomp.oacc-fortran/firstprivate-int.f90 -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 -foffload=disable  -O  compilation failed to produce executable+}
> 
> That is:
> 
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:10:18: Error: Kind 16 not supported for type INTEGER at (1)
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:16:18: Error: Kind 16 not supported for type LOGICAL at (1)
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:115:18: Error: Kind 16 not supported for type INTEGER at (1)
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:121:18: Error: Kind 16 not supported for type LOGICAL at (1)
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:31:6: Error: Symbol 'i16i' at (1) has no IMPLICIT type
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:49:40: Error: Symbol 'i16o' at (1) has no IMPLICIT type
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:37:6: Error: Symbol 'l16i' at (1) has no IMPLICIT type
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:51:40: Error: Symbol 'l16o' at (1) has no IMPLICIT type
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:105:43: Error: Symbol 'i16i' at (1) has no IMPLICIT type
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:105:69: Error: Symbol 'i16o' at (1) has no IMPLICIT type
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:106:43: Error: Symbol 'l16i' at (1) has no IMPLICIT type
>     [...]/source-gcc/libgomp/testsuite/libgomp.oacc-fortran/firstprivate-int.f90:106:69: Error: Symbol 'l16o' at (1) has no IMPLICIT type

I should have been comparing the type size, not precision against the
pointer size. This patch fixes that.

Cesar

[-- Attachment #2: gomp4-fp-int-fallout.diff --]
[-- Type: text/x-patch, Size: 2877 bytes --]

2017-02-01  Cesar Philippidis  <cesar@codesourcery.com>

	gcc/
	* omp-low.c (convert_to_firstprivate_pointer): Use TYPE_SIZE instead
	of TYPE_PRECISION when determining if a firstprivate variable may be
	casted into a pointer.
	(convert_from_firstprivate_pointer): Likewise.
	(lower_omp_target): Likewise.


diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index 142d928..450d76e 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -16480,7 +16480,7 @@ convert_to_firstprivate_pointer (tree var, gimple_seq *gs)
     return fold_convert (pointer_sized_int_node, var);
   }
 
-  switch (TYPE_PRECISION (type))
+  switch (tree_to_uhwi (TYPE_SIZE (type)))
     {
     case 1: case 2: case 4: case 8: new_type = unsigned_char_type_node; break;
     case 16: new_type = short_unsigned_type_node; break;
@@ -16520,7 +16520,7 @@ convert_from_firstprivate_pointer (tree var, bool is_ref, gimple_seq *gs)
   if (INTEGRAL_TYPE_P (var) || POINTER_TYPE_P (type))
     return fold_convert (type, var);
 
-  switch (TYPE_PRECISION (type))
+  switch (tree_to_uhwi (TYPE_SIZE (type)))
     {
     case 1: case 2: case 4: case 8: new_type = unsigned_char_type_node; break;
     case 16: new_type = short_unsigned_type_node; break;
@@ -16732,7 +16732,7 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 		&& (TREE_CODE (inner_type) == REAL_TYPE
 		    || (!is_reference (var) && INTEGRAL_TYPE_P (inner_type))
 		    || TREE_CODE (inner_type) == INTEGER_TYPE)
-		&& TYPE_PRECISION (inner_type) <= POINTER_SIZE
+		&& tree_to_uhwi (TYPE_SIZE (inner_type)) <= POINTER_SIZE
 		&& TYPE_PRECISION (inner_type) != 0
 		&& !maybe_lookup_field_in_outer_ctx (var, ctx))
 	      oacc_firstprivate_int = true;
@@ -17012,7 +17012,7 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 			 || (!is_reference (var)
 			     && INTEGRAL_TYPE_P (inner_type))
 			 || TREE_CODE (inner_type) == INTEGER_TYPE)
-			&& TYPE_PRECISION (inner_type) <= POINTER_SIZE
+			&& tree_to_uhwi (TYPE_SIZE (inner_type)) <= POINTER_SIZE
 			&& TYPE_PRECISION (inner_type) != 0
 			&& !maybe_lookup_field_in_outer_ctx (var, ctx))
 		      {
@@ -17200,7 +17200,7 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 	    if (is_reference (ovar))
 	      type = TREE_TYPE (type);
 	    if ((INTEGRAL_TYPE_P (type)
-		 && TYPE_PRECISION (type) <= POINTER_SIZE)
+		 && tree_to_uhwi (TYPE_SIZE (type)) <= POINTER_SIZE)
 		|| TREE_CODE (type) == POINTER_TYPE)
 	      {
 		tkind = GOMP_MAP_FIRSTPRIVATE_INT;
@@ -17355,7 +17355,7 @@ lower_omp_target (gimple_stmt_iterator *gsi_p, omp_context *ctx)
 		if (is_reference (var))
 		  type = TREE_TYPE (type);
 		if ((INTEGRAL_TYPE_P (type)
-		     && TYPE_PRECISION (type) <= POINTER_SIZE)
+		     && tree_to_uhwi (TYPE_SIZE (type)) <= POINTER_SIZE)
 		    || TREE_CODE (type) == POINTER_TYPE)
 		  {
 		    x = build_receiver_ref (var, false, ctx);

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [gomp4] enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC
  2017-01-30 10:19 ` Thomas Schwinge
  2017-02-01 17:58   ` Cesar Philippidis
@ 2017-02-10 12:54   ` Tom de Vries
  1 sibling, 0 replies; 5+ messages in thread
From: Tom de Vries @ 2017-02-10 12:54 UTC (permalink / raw)
  To: Thomas Schwinge, Cesar Philippidis; +Cc: gcc-patches, Fortran List

[-- Attachment #1: Type: text/plain, Size: 578 bytes --]

On 30/01/17 11:18, Thomas Schwinge wrote:
>> +static tree
>> +convert_from_firstprivate_pointer (tree var, bool is_ref, gimple_seq *gs)
>> +{
>> +  tree type = TREE_TYPE (var);
>> +  tree new_type = NULL_TREE;
>> +  tree tmp = NULL_TREE;
>> +  tree inner_type = NULL_TREE;
>     [...]/source-gcc/gcc/omp-low.c: In function 'tree_node* convert_from_firstprivate_pointer(tree, bool, gimple**)':
>     [...]/source-gcc/gcc/omp-low.c:16515:8: warning: unused variable 'inner_type' [-Wunused-variable]

Fixed while bootstrapping gomp-4_0-branch with --enable-werror.

Thanks,
- Tom


[-- Attachment #2: 0001-Remove-unused-var-in-convert_from_firstprivate_int.patch --]
[-- Type: text/x-patch, Size: 634 bytes --]

Remove unused var in convert_from_firstprivate_int

2017-02-10  Tom de Vries  <tom@codesourcery.com>

	* omp-low.c (convert_from_firstprivate_int): Remove unused variable.

---
 gcc/omp-low.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/gcc/omp-low.c b/gcc/omp-low.c
index bb2d1fa..0f79533 100644
--- a/gcc/omp-low.c
+++ b/gcc/omp-low.c
@@ -16531,7 +16531,6 @@ convert_from_firstprivate_int (tree var, bool is_ref, gimple_seq *gs)
   tree type = TREE_TYPE (var);
   tree new_type = NULL_TREE;
   tree tmp = NULL_TREE;
-  tree inner_type = NULL_TREE;
 
   gcc_assert (TREE_CODE (var) == MEM_REF);
   var = TREE_OPERAND (var, 0);

^ permalink raw reply	[flat|nested] 5+ messages in thread

* [og7, openacc, libgomp, testsuite] Fix asserts in firstprivate-int.{c,C}
  2017-01-27 15:46 [gomp4] enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC Cesar Philippidis
  2017-01-30 10:19 ` Thomas Schwinge
@ 2018-04-18  8:58 ` Tom de Vries
  1 sibling, 0 replies; 5+ messages in thread
From: Tom de Vries @ 2018-04-18  8:58 UTC (permalink / raw)
  To: Cesar Philippidis, gcc-patches, Fortran List

[-- Attachment #1: Type: text/plain, Size: 1155 bytes --]

[ was: Re: [gomp4] enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC ]

On 01/27/2017 04:45 PM, Cesar Philippidis wrote:

> diff --git a/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C b/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C

> +  assert(i8o = i8i);
> +  assert(i16o = i16i);
> +  assert(i32o = i32i);
> +  assert(i64o = i64i);
> +
> +  assert(u8o = u8i);
> +  assert(u16o = u16i);
> +  assert(u32o = u32i);
> +  assert(u64o = u64i);
> +
> +  assert(r32o = r32i);
> +  assert(r64o = r64i);
> +
> +  assert(cio = cii);
> +  assert(cfo = cfi);
> +  assert(cdo = cdi);

> diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c

> +  assert(i8o = i8i);
> +  assert(i16o = i16i);
> +  assert(i32o = i32i);
> +  assert(i64o = i64i);
> +
> +  assert(u8o = u8i);
> +  assert(u16o = u16i);
> +  assert(u32o = u32i);
> +  assert(u64o = u64i);
> +
> +  assert(r32o = r32i);
> +  assert(r64o = r64i);
> +
> +  assert(cio = cii);
> +  assert(cfo = cfi);
> +  assert(cdo = cdi);

These assert have assigns in them.

Fixed in attached patch, committed.

Thanks,
- Tom

[-- Attachment #2: 0001-openacc-libgomp-testsuite-Fix-asserts-in-firstprivate-int.-c-C.patch --]
[-- Type: text/x-patch, Size: 2547 bytes --]

[openacc, libgomp, testsuite] Fix asserts in firstprivate-int.{c,C}

2018-04-18  Tom de Vries  <tom@codesourcery.com>

	* testsuite/libgomp.oacc-c++/firstprivate-int.C (main): Fix asserts.
	* testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c (main): Same.

---
 .../testsuite/libgomp.oacc-c++/firstprivate-int.C  | 26 +++++++++++-----------
 .../libgomp.oacc-c-c++-common/firstprivate-int.c   | 26 +++++++++++-----------
 2 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C b/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C
index 94667b5..c7d90d9 100644
--- a/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C
+++ b/libgomp/testsuite/libgomp.oacc-c++/firstprivate-int.C
@@ -62,22 +62,22 @@ main ()
 	    u16o, u32i, u32o, u64i, u64o, r32i, r32o, r64i, r64o, cii, cio,
 	    cfi, cfo, cdi, cdo);
 
-  assert(i8o = i8i);
-  assert(i16o = i16i);
-  assert(i32o = i32i);
-  assert(i64o = i64i);
+  assert (i8o == i8i);
+  assert (i16o == i16i);
+  assert (i32o == i32i);
+  assert (i64o == i64i);
 
-  assert(u8o = u8i);
-  assert(u16o = u16i);
-  assert(u32o = u32i);
-  assert(u64o = u64i);
+  assert (u8o == u8i);
+  assert (u16o == u16i);
+  assert (u32o == u32i);
+  assert (u64o == u64i);
 
-  assert(r32o = r32i);
-  assert(r64o = r64i);
+  assert (r32o == r32i);
+  assert (r64o == r64i);
 
-  assert(cio = cii);
-  assert(cfo = cfi);
-  assert(cdo = cdi);
+  assert (cio == cii);
+  assert (cfo == cfi);
+  assert (cdo == cdi);
 
   return 0;
 }
diff --git a/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c b/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c
index d9da9a0..8abb610 100644
--- a/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c
+++ b/libgomp/testsuite/libgomp.oacc-c-c++-common/firstprivate-int.c
@@ -46,22 +46,22 @@ main ()
     cdo = cdi;
   }
 
-  assert(i8o = i8i);
-  assert(i16o = i16i);
-  assert(i32o = i32i);
-  assert(i64o = i64i);
+  assert (i8o == i8i);
+  assert (i16o == i16i);
+  assert (i32o == i32i);
+  assert (i64o == i64i);
 
-  assert(u8o = u8i);
-  assert(u16o = u16i);
-  assert(u32o = u32i);
-  assert(u64o = u64i);
+  assert (u8o == u8i);
+  assert (u16o == u16i);
+  assert (u32o == u32i);
+  assert (u64o == u64i);
 
-  assert(r32o = r32i);
-  assert(r64o = r64i);
+  assert (r32o == r32i);
+  assert (r64o == r64i);
 
-  assert(cio = cii);
-  assert(cfo = cfi);
-  assert(cdo = cdi);
+  assert (cio == cii);
+  assert (cfo == cfi);
+  assert (cdo == cdi);
 
   return 0;
 }

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2018-04-18  8:58 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-01-27 15:46 [gomp4] enable GOMP_MAP_FIRSTPRIVATE_INT in OpenACC Cesar Philippidis
2017-01-30 10:19 ` Thomas Schwinge
2017-02-01 17:58   ` Cesar Philippidis
2017-02-10 12:54   ` Tom de Vries
2018-04-18  8:58 ` [og7, openacc, libgomp, testsuite] Fix asserts in firstprivate-int.{c,C} Tom de Vries

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