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| author | Richard Guenther <rguenther@suse.de> | 2010-12-08 16:15:06 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-12-08 16:15:06 +0000 |
| commit | afca0898bc7728495064f251d6094970e036a5c7 (patch) | |
| tree | 0f21a9ba80edfe5be28ed465ffa72b1c35017992 /gcc/tree-ssa-sccvn.c | |
| parent | fdd7cdbfeed6b3bb25af2221fe00ccf44e6e51b2 (diff) | |
| download | gcc-afca0898bc7728495064f251d6094970e036a5c7.tar.gz | |
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
Diffstat (limited to 'gcc/tree-ssa-sccvn.c')
| -rw-r--r-- | gcc/tree-ssa-sccvn.c | 7 |
1 files changed, 4 insertions, 3 deletions
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; } |