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| author | Sebastian Pop <spop@gcc.gnu.org> | 2010-12-07 15:27:50 +0000 |
|---|---|---|
| committer | Sebastian Pop <spop@gcc.gnu.org> | 2010-12-07 15:27:50 +0000 |
| commit | 5a1f5f9a3c83a1e1c5a6d61625909a451effae15 (patch) | |
| tree | 668496f7d548657f65ecf68df3be53bc300d3fa7 /gcc/tree-data-ref.c | |
| parent | ac819ba59a7462c52e2fbdf84a7eb8830ee3a0bf (diff) | |
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Fix PR42327: use build_int_cst.
2010-12-07 Sebastian Pop <sebastian.pop@amd.com>
PR tree-optimization/42327
* tree-data-ref.c (omega_setup_subscript): Call build_int_cst
instead of using integer_minus_one_node.
* gcc.dg/tree-ssa/pr42327.c: New.
From-SVN: r167548
Diffstat (limited to 'gcc/tree-data-ref.c')
| -rw-r--r-- | gcc/tree-data-ref.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-data-ref.c b/gcc/tree-data-ref.c index 094d168..4dfcd5c 100644 --- a/gcc/tree-data-ref.c +++ b/gcc/tree-data-ref.c @@ -3482,6 +3482,7 @@ omega_setup_subscript (tree access_fun_a, tree access_fun_b, tree fun_a = chrec_convert (type, access_fun_a, NULL); tree fun_b = chrec_convert (type, access_fun_b, NULL); tree difference = chrec_fold_minus (type, fun_a, fun_b); + tree minus_one; /* When the fun_a - fun_b is not constant, the dependence is not captured by the classic distance vector representation. */ @@ -3496,7 +3497,8 @@ omega_setup_subscript (tree access_fun_a, tree access_fun_b, return true; } - fun_b = chrec_fold_multiply (type, fun_b, integer_minus_one_node); + minus_one = build_int_cst (type, -1); + fun_b = chrec_fold_multiply (type, fun_b, minus_one); eq = omega_add_zero_eq (pb, omega_black); if (!init_omega_eq_with_af (pb, eq, DDR_NB_LOOPS (ddr), fun_a, ddr) |