2014-06-24 Jakub Jelinek <jakub@redhat.com>
+ * gimplify.c (gimplify_omp_for): For #pragma omp for simd iterator
+ not mentioned in clauses use private clause if the iterator is
+ declared in #pragma omp for simd, and when adding lastprivate
+ instead, add it to the outer #pragma omp for too. Diagnose
+ if the variable is private in outer context. For simd collapse > 1
+ loops, replace all iterators with temporaries.
+ * omp-low.c (lower_rec_input_clauses): Handle LINEAR clause the
+ same even in collapse > 1 loops.
+
* gimplify.c (gimplify_scan_omp_clauses) <case OMP_CLAUSE_MAP,
OMP_CLAUSE_TO, OMP_CLAUSE_FROM): Make sure OMP_CLAUSE_SIZE is
non-NULL.
+2014-06-24 Jakub Jelinek <jakub@redhat.com>
+
+ * c-parser.c (c_parser_omp_for_loop): For
+ #pragma omp parallel for simd move lastprivate clause from parallel
+ to for rather than simd.
+
2014-06-23 Marek Polacek <polacek@redhat.com>
* c-typeck.c (parser_build_binary_op): Don't call
tree l = build_omp_clause (OMP_CLAUSE_LOCATION (*c),
OMP_CLAUSE_LASTPRIVATE);
OMP_CLAUSE_DECL (l) = OMP_CLAUSE_DECL (*c);
- OMP_CLAUSE_CHAIN (l) = clauses;
- clauses = l;
+ if (code == OMP_SIMD)
+ {
+ OMP_CLAUSE_CHAIN (l)
+ = cclauses[C_OMP_CLAUSE_SPLIT_FOR];
+ cclauses[C_OMP_CLAUSE_SPLIT_FOR] = l;
+ }
+ else
+ {
+ OMP_CLAUSE_CHAIN (l) = clauses;
+ clauses = l;
+ }
OMP_CLAUSE_SET_CODE (*c, OMP_CLAUSE_SHARED);
}
}
+2014-06-24 Jakub Jelinek <jakub@redhat.com>
+
+ * parser.c (cp_parser_omp_for_loop): For
+ #pragma omp parallel for simd move lastprivate clause from parallel
+ to for rather than simd.
+
2014-06-23 Paolo Carlini <paolo.carlini@oracle.com>
DR 577
change it to shared (decl) in OMP_PARALLEL_CLAUSES. */
tree l = build_omp_clause (loc, OMP_CLAUSE_LASTPRIVATE);
OMP_CLAUSE_DECL (l) = real_decl;
- OMP_CLAUSE_CHAIN (l) = clauses;
CP_OMP_CLAUSE_INFO (l) = CP_OMP_CLAUSE_INFO (*c);
- clauses = l;
+ if (code == OMP_SIMD)
+ {
+ OMP_CLAUSE_CHAIN (l) = cclauses[C_OMP_CLAUSE_SPLIT_FOR];
+ cclauses[C_OMP_CLAUSE_SPLIT_FOR] = l;
+ }
+ else
+ {
+ OMP_CLAUSE_CHAIN (l) = clauses;
+ clauses = l;
+ }
OMP_CLAUSE_SET_CODE (*c, OMP_CLAUSE_SHARED);
CP_OMP_CLAUSE_INFO (*c) = NULL;
add_private_clause = false;
bool lastprivate
= (!has_decl_expr
|| !bitmap_bit_p (has_decl_expr, DECL_UID (decl)));
+ if (lastprivate
+ && gimplify_omp_ctxp->outer_context
+ && gimplify_omp_ctxp->outer_context->region_type
+ == ORT_WORKSHARE
+ && gimplify_omp_ctxp->outer_context->combined_loop
+ && !gimplify_omp_ctxp->outer_context->distribute)
+ {
+ struct gimplify_omp_ctx *outer
+ = gimplify_omp_ctxp->outer_context;
+ n = splay_tree_lookup (outer->variables,
+ (splay_tree_key) decl);
+ if (n != NULL
+ && (n->value & GOVD_DATA_SHARE_CLASS) == GOVD_LOCAL)
+ lastprivate = false;
+ else if (omp_check_private (outer, decl, false))
+ error ("lastprivate variable %qE is private in outer "
+ "context", DECL_NAME (decl));
+ else
+ {
+ omp_add_variable (outer, decl,
+ GOVD_LASTPRIVATE | GOVD_SEEN);
+ if (outer->outer_context)
+ omp_notice_variable (outer->outer_context, decl, true);
+ }
+ }
c = build_omp_clause (input_location,
lastprivate ? OMP_CLAUSE_LASTPRIVATE
: OMP_CLAUSE_PRIVATE);
/* If DECL is not a gimple register, create a temporary variable to act
as an iteration counter. This is valid, since DECL cannot be
- modified in the body of the loop. */
+ modified in the body of the loop. Similarly for any iteration vars
+ in simd with collapse > 1 where the iterator vars must be
+ lastprivate. */
if (orig_for_stmt != for_stmt)
var = decl;
- else if (!is_gimple_reg (decl))
+ else if (!is_gimple_reg (decl)
+ || (simd && TREE_VEC_LENGTH (OMP_FOR_INIT (for_stmt)) > 1))
{
var = create_tmp_var (TREE_TYPE (decl), get_name (decl));
TREE_OPERAND (t, 0) = var;
OMP_CLAUSE__LOOPTEMP_);
gcc_assert (c);
tree l = OMP_CLAUSE_DECL (c);
- if (fd->collapse == 1)
- {
- tree n1 = fd->loop.n1;
- tree step = fd->loop.step;
- tree itype = TREE_TYPE (l);
- if (POINTER_TYPE_P (itype))
- itype = signed_type_for (itype);
- l = fold_build2 (MINUS_EXPR, itype, l, n1);
- if (TYPE_UNSIGNED (itype)
- && fd->loop.cond_code == GT_EXPR)
- l = fold_build2 (TRUNC_DIV_EXPR, itype,
- fold_build1 (NEGATE_EXPR,
- itype, l),
- fold_build1 (NEGATE_EXPR,
- itype, step));
- else
- l = fold_build2 (TRUNC_DIV_EXPR, itype, l, step);
- }
+ tree n1 = fd->loop.n1;
+ tree step = fd->loop.step;
+ tree itype = TREE_TYPE (l);
+ if (POINTER_TYPE_P (itype))
+ itype = signed_type_for (itype);
+ l = fold_build2 (MINUS_EXPR, itype, l, n1);
+ if (TYPE_UNSIGNED (itype)
+ && fd->loop.cond_code == GT_EXPR)
+ l = fold_build2 (TRUNC_DIV_EXPR, itype,
+ fold_build1 (NEGATE_EXPR, itype, l),
+ fold_build1 (NEGATE_EXPR,
+ itype, step));
+ else
+ l = fold_build2 (TRUNC_DIV_EXPR, itype, l, step);
t = fold_build2 (MULT_EXPR, stept,
fold_convert (stept, l), t);
if (POINTER_TYPE_P (TREE_TYPE (x)))
2014-06-24 Jakub Jelinek <jakub@redhat.com>
+ * testsuite/libgomp.c/for-2.c: Define SC to static for
+ #pragma omp for simd testing.
+ * testsuite/libgomp.c/for-2.h (SC): Define if not defined.
+ (N(f5), N(f6), N(f7), N(f8), N(f10), N(f12), N(f14)): Use
+ SC macro.
+ * testsuite/libgomp.c/simd-14.c: New test.
+ * testsuite/libgomp.c/simd-15.c: New test.
+ * testsuite/libgomp.c/simd-16.c: New test.
+ * testsuite/libgomp.c/simd-17.c: New test.
+ * testsuite/libgomp.c++/for-10.C: Define SC to static for
+ #pragma omp for simd testing.
+ * testsuite/libgomp.c++/simd10.C: New test.
+ * testsuite/libgomp.c++/simd11.C: New test.
+ * testsuite/libgomp.c++/simd12.C: New test.
+ * testsuite/libgomp.c++/simd13.C: New test.
+
* testsuite/libgomp.fortran/aligned1.f03: New test.
* testsuite/libgomp.fortran/nestedfn5.f90: New test.
* testsuite/libgomp.fortran/target7.f90: Surround loop spawning
#undef F
#undef G
+#undef SC
+#define SC static
#define F for simd
#define G f_simd
#include "../libgomp.c/for-1.h"
#undef F
#undef G
+#undef SC
int
main ()
--- /dev/null
+// { dg-do run }
+// { dg-options "-O2" }
+// { dg-additional-options "-msse2" { target sse2_runtime } }
+// { dg-additional-options "-mavx" { target avx_runtime } }
+
+#include "../libgomp.c/simd-14.c"
--- /dev/null
+// { dg-do run }
+// { dg-options "-O2" }
+// { dg-additional-options "-msse2" { target sse2_runtime } }
+// { dg-additional-options "-mavx" { target avx_runtime } }
+
+#include "../libgomp.c/simd-15.c"
--- /dev/null
+// { dg-do run }
+// { dg-options "-O2" }
+// { dg-additional-options "-msse2" { target sse2_runtime } }
+// { dg-additional-options "-mavx" { target avx_runtime } }
+
+#include "../libgomp.c/simd-16.c"
--- /dev/null
+// { dg-do run }
+// { dg-options "-O2" }
+// { dg-additional-options "-msse2" { target sse2_runtime } }
+// { dg-additional-options "-mavx" { target avx_runtime } }
+
+#include "../libgomp.c/simd-17.c"
#undef F
#undef G
+#undef SC
+#define SC static
#define F for simd
#define G f_simd
#include "for-1.h"
#undef F
#undef G
+#undef SC
int
main ()
for (;;);
}
#endif
+#ifndef SC
+#define SC
+#endif
__attribute__((noinline, noclone)) void
N(f0) (void)
N(f5) (int n11, int n12, int n21, int n22, int n31, int n32,
int s1, int s2, int s3)
{
- int v1, v2, v3;
+ SC int v1, v2, v3;
#pragma omp F S collapse(3)
for (v1 = n11; v1 < n12; v1 += s1)
for (v2 = n21; v2 < n22; v2 += s2)
N(f6) (int n11, int n12, int n21, int n22, long long n31, long long n32,
int s1, int s2, long long int s3)
{
- int v1, v2;
- long long v3;
+ SC int v1, v2;
+ SC long long v3;
#pragma omp F S collapse(3)
for (v1 = n11; v1 > n12; v1 += s1)
for (v2 = n21; v2 > n22; v2 += s2)
__attribute__((noinline, noclone)) void
N(f7) (void)
{
- unsigned int v1, v3;
- unsigned long long v2;
+ SC unsigned int v1, v3;
+ SC unsigned long long v2;
#pragma omp F S collapse(3)
for (v1 = 0; v1 < 20; v1 += 2)
for (v2 = __LONG_LONG_MAX__ + 16ULL;
__attribute__((noinline, noclone)) void
N(f8) (void)
{
- long long v1, v2, v3;
+ SC long long v1, v2, v3;
#pragma omp F S collapse(3)
for (v1 = 0; v1 < 20; v1 += 2)
for (v2 = 30; v2 < 20; v2++)
__attribute__((noinline, noclone)) void
N(f10) (void)
{
- int i;
+ SC int i;
#pragma omp F S collapse(3)
for (i = 0; i < 10; i++)
for (int j = 10; j < 8; j++)
__attribute__((noinline, noclone)) void
N(f12) (int n)
{
- int i;
+ SC int i;
#pragma omp F S collapse(3)
for (i = 0; i < 10; i++)
for (int j = n; j < 8; j++)
__attribute__((noinline, noclone)) void
N(f14) (void)
{
- float *i;
+ SC float *i;
#pragma omp F S collapse(3)
for (i = &b[0][0][0]; i < &b[0][0][10]; i++)
for (float *j = &b[0][15][0]; j > &b[0][0][0]; j -= 10)
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+/* { dg-additional-options "-msse2" { target sse2_runtime } } */
+/* { dg-additional-options "-mavx" { target avx_runtime } } */
+
+int
+main ()
+{
+ int i, j, b, c = 0;
+ i = 4; j = 4; b = 7;
+ #pragma omp simd linear(b:2) reduction(+:c)
+ for (i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ b = b + 2;
+ }
+ if (c || i != 64 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd linear(b:3) reduction(+:c)
+ for (i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ b = b + 3;
+ }
+ if (c || i != 64 || b != 7 + 16 * 3)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd linear(i) linear(b:2) reduction(+:c)
+ for (i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ b = b + 2;
+ }
+ if (c || i != 64 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd linear(i:4) linear(b:3) reduction(+:c)
+ for (i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ b = b + 3;
+ }
+ if (c || i != 64 || b != 7 + 16 * 3)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd collapse (2) linear(b:2) reduction(+:c)
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ b = b + 2;
+ }
+ if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd collapse (2) lastprivate (i, j) linear(b:2) reduction(+:c)
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ b = b + 2;
+ }
+ if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(b:2) reduction(+:c)
+ for (i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ b = b + 2;
+ }
+ if (c || i != 64 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(b:3) reduction(+:c)
+ for (i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ b = b + 3;
+ }
+ if (c || i != 64 || b != 7 + 16 * 3)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(i) linear(b:2) reduction(+:c)
+ for (i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ b = b + 2;
+ }
+ if (c || i != 64 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(i:4) linear(b:3) reduction(+:c)
+ for (i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ b = b + 3;
+ }
+ if (c || i != 64 || b != 7 + 16 * 3)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd lastprivate (i, j) collapse (2) schedule (static, 4) linear(b:2) reduction(+:c)
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ b = b + 2;
+ }
+ if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd collapse (2) schedule (static, 4) linear(b:2) reduction(+:c)
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ b = b + 2;
+ }
+ if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ return 0;
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+/* { dg-additional-options "-msse2" { target sse2_runtime } } */
+/* { dg-additional-options "-mavx" { target avx_runtime } } */
+
+static inline void
+foo (int *b, int *i, int *j, int x)
+{
+ *b = *b + x + (*i - *i) + (*j - *j);
+}
+
+int
+main ()
+{
+ int i, j, b, c = 0;
+ i = 4; j = 4; b = 7;
+ #pragma omp simd linear(b:2) reduction(+:c)
+ for (i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || i != 64 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd linear(b:3) reduction(+:c)
+ for (i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ foo (&b, &i, &j, 3);
+ }
+ if (c || i != 64 || b != 7 + 16 * 3)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd linear(i) linear(b:2) reduction(+:c)
+ for (i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || i != 64 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd linear(i:4) linear(b:3) reduction(+:c)
+ for (i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ foo (&b, &i, &j, 3);
+ }
+ if (c || i != 64 || b != 7 + 16 * 3)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd collapse (2) linear(b:2) reduction(+:c)
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp simd collapse (2) lastprivate (i, j) linear(b:2) reduction(+:c)
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(b:2) reduction(+:c)
+ for (i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || i != 64 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(b:3) reduction(+:c)
+ for (i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ foo (&b, &i, &j, 3);
+ }
+ if (c || i != 64 || b != 7 + 16 * 3)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(i) linear(b:2) reduction(+:c)
+ for (i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || i != 64 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(i:4) linear(b:3) reduction(+:c)
+ for (i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ foo (&b, &i, &j, 3);
+ }
+ if (c || i != 64 || b != 7 + 16 * 3)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd lastprivate (i, j) collapse (2) schedule (static, 4) linear(b:2) reduction(+:c)
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ i = 4; j = 4; b = 7;
+ #pragma omp parallel for simd collapse (2) schedule (static, 4) linear(b:2) reduction(+:c)
+ for (i = 0; i < 8; i++)
+ for (j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || i != 8 || j != 8 || b != 7 + 64 * 2)
+ __builtin_abort ();
+ return 0;
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-O2 -std=c99" } */
+/* { dg-additional-options "-msse2" { target sse2_runtime } } */
+/* { dg-additional-options "-mavx" { target avx_runtime } } */
+
+int
+main ()
+{
+ int b, c = 0;
+ b = 7;
+ #pragma omp simd linear(b:2) reduction(+:c)
+ for (int i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ b = b + 2;
+ }
+ if (c || b != 7 + 64 * 2)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp simd linear(b:3) reduction(+:c)
+ for (int i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ b = b + 3;
+ }
+ if (c || b != 7 + 16 * 3)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp simd collapse (2) linear(b:2) reduction(+:c)
+ for (int i = 0; i < 8; i++)
+ for (int j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ b = b + 2;
+ }
+ if (c || b != 7 + 64 * 2)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(b:2) reduction(+:c)
+ for (int i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ b = b + 2;
+ }
+ if (c || b != 7 + 64 * 2)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(b:3) reduction(+:c)
+ for (int i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ b = b + 3;
+ }
+ if (c || b != 7 + 16 * 3)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp parallel for simd collapse (2) schedule (static, 4) linear(b:2) reduction(+:c)
+ for (int i = 0; i < 8; i++)
+ for (int j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ b = b + 2;
+ }
+ if (c || b != 7 + 64 * 2)
+ __builtin_abort ();
+ return 0;
+}
--- /dev/null
+/* { dg-do run } */
+/* { dg-options "-O2 -std=c99" } */
+/* { dg-additional-options "-msse2" { target sse2_runtime } } */
+/* { dg-additional-options "-mavx" { target avx_runtime } } */
+
+static inline void
+foo (int *b, int *i, int *j, int x)
+{
+ *b = *b + x + (*i - *i) + (*j - *j);
+}
+
+int
+main ()
+{
+ int b, c = 0;
+ b = 7;
+ #pragma omp simd linear(b:2) reduction(+:c)
+ for (int i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ foo (&b, &i, &i, 2);
+ }
+ if (c || b != 7 + 64 * 2)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp simd linear(b:3) reduction(+:c)
+ for (int i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ foo (&b, &i, &i, 3);
+ }
+ if (c || b != 7 + 16 * 3)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp simd collapse (2) linear(b:2) reduction(+:c)
+ for (int i = 0; i < 8; i++)
+ for (int j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || b != 7 + 64 * 2)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(b:2) reduction(+:c)
+ for (int i = 0; i < 64; i++)
+ {
+ c = c + (b != 7 + 2 * i);
+ foo (&b, &i, &i, 2);
+ }
+ if (c || b != 7 + 64 * 2)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp parallel for simd schedule (static, 4) linear(b:3) reduction(+:c)
+ for (int i = 0; i < 64; i += 4)
+ {
+ c = c + (b != 7 + i / 4 * 3);
+ foo (&b, &i, &i, 3);
+ }
+ if (c || b != 7 + 16 * 3)
+ __builtin_abort ();
+ b = 7;
+ #pragma omp parallel for simd collapse (2) schedule (static, 4) linear(b:2) reduction(+:c)
+ for (int i = 0; i < 8; i++)
+ for (int j = 0; j < 8; j++)
+ {
+ c = c + (b != 7 + 2 * j + 2 * 8 * i);
+ foo (&b, &i, &j, 2);
+ }
+ if (c || b != 7 + 64 * 2)
+ __builtin_abort ();
+ return 0;
+}