From afca0898bc7728495064f251d6094970e036a5c7 Mon Sep 17 00:00:00 2001 From: Richard Guenther <rguenther@suse.de> Date: Wed, 8 Dec 2010 16:15:06 +0000 Subject: tree-ssa-sccvn.c (copy_reference_ops_from_ref): Use a shift instead of a division to divide by BITS_PER_UNIT. 2010-12-08 Richard Guenther <rguenther@suse.de> * tree-ssa-sccvn.c (copy_reference_ops_from_ref): Use a shift instead of a division to divide by BITS_PER_UNIT. From-SVN: r167592 --- gcc/tree-ssa-sccvn.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'gcc/tree-ssa-sccvn.c') diff --git a/gcc/tree-ssa-sccvn.c b/gcc/tree-ssa-sccvn.c index ed1dabea1ca..6efb2453d3a 100644 --- a/gcc/tree-ssa-sccvn.c +++ b/gcc/tree-ssa-sccvn.c @@ -644,10 +644,11 @@ copy_reference_ops_from_ref (tree ref, VEC(vn_reference_op_s, heap) **result) { double_int off = double_int_add (tree_to_double_int (this_offset), - double_int_sdiv + double_int_rshift (tree_to_double_int (bit_offset), - uhwi_to_double_int (BITS_PER_UNIT), - TRUNC_DIV_EXPR)); + BITS_PER_UNIT == 8 + ? 3 : exact_log2 (BITS_PER_UNIT), + HOST_BITS_PER_DOUBLE_INT, true)); if (double_int_fits_in_shwi_p (off)) temp.off = off.low; } -- cgit v1.2.1