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One last tweak before we move onto the new world/branch. 

From-SVN: r259404
This commit is contained in:
Aldy Hernandez 2018-04-16 17:23:40 +00:00
parent 62a2e85772
commit 15c5f3f502
1 changed files with 7 additions and 1 deletions
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8
gcc/gimple-ssa-warn-restrict.c
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@ -308,11 +308,17 @@ builtin_memref::extend_offset_range (tree offset)
if (TREE_CODE (offset) == SSA_NAME) if (TREE_CODE (offset) == SSA_NAME)
{ {
wide_int min, max; wide_int min, max;
if (get_range_info (offset, &min, &max)) value_range_type rng = get_range_info_as_value_range (offset, &min, &max);
if (rng == VR_RANGE)
{ {
offrange[0] += offset_int::from (min, SIGNED); offrange[0] += offset_int::from (min, SIGNED);
offrange[1] += offset_int::from (max, SIGNED); offrange[1] += offset_int::from (max, SIGNED);
} }
else if (rng == VR_ANTI_RANGE)
{
offrange[0] += offset_int::from (max + 1, SIGNED);
offrange[1] += offset_int::from (min - 1, SIGNED);
}
else else
{ {
gimple *stmt = SSA_NAME_DEF_STMT (offset); gimple *stmt = SSA_NAME_DEF_STMT (offset);