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| author | Richard Guenther <rguenther@suse.de> | 2010-11-15 14:15:33 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2010-11-15 14:15:33 +0000 |
| commit | c636a4fbf67f2d5344ba102fd55896587ab189c4 (patch) | |
| tree | 84e0ca38345ec33e2e9f98b27b972eab98989535 /gcc/tree-ssa-structalias.c | |
| parent | d0a4fd975af9cfbc0c9f23a50bdfdb484d2fc1d6 (diff) | |
| download | gcc-c636a4fbf67f2d5344ba102fd55896587ab189c4.zip gcc-c636a4fbf67f2d5344ba102fd55896587ab189c4.tar.gz gcc-c636a4fbf67f2d5344ba102fd55896587ab189c4.tar.bz2 | |
re PR tree-optimization/46467 (gcc.dg/torture/pta-structcopy-1.c FAILs with -fipa-pta without inlining)
2010-11-15 Richard Guenther <rguenther@suse.de>
PR tree-optimization/46467
* tree-ssa-structalias.c (do_structure_copy): Properly treat
variables without subvars.
* gcc.dg/ipa/ipa-pta-16.c: New testcase.
From-SVN: r166755
Diffstat (limited to 'gcc/tree-ssa-structalias.c')
| -rw-r--r-- | gcc/tree-ssa-structalias.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/gcc/tree-ssa-structalias.c b/gcc/tree-ssa-structalias.c index 45efd55..8c9ed6c 100644 --- a/gcc/tree-ssa-structalias.c +++ b/gcc/tree-ssa-structalias.c @@ -3541,11 +3541,15 @@ do_structure_copy (tree lhsop, tree rhsop) lhsv = get_varinfo (lhsp->var); rhsv = get_varinfo (rhsp->var); if (lhsv->may_have_pointers - && ranges_overlap_p (lhsv->offset + rhsoffset, lhsv->size, - rhsv->offset + lhsoffset, rhsv->size)) + && (lhsv->is_full_var + || rhsv->is_full_var + || ranges_overlap_p (lhsv->offset + rhsoffset, lhsv->size, + rhsv->offset + lhsoffset, rhsv->size))) process_constraint (new_constraint (*lhsp, *rhsp)); - if (lhsv->offset + rhsoffset + lhsv->size - > rhsv->offset + lhsoffset + rhsv->size) + if (!rhsv->is_full_var + && (lhsv->is_full_var + || (lhsv->offset + rhsoffset + lhsv->size + > rhsv->offset + lhsoffset + rhsv->size))) { ++k; if (k >= VEC_length (ce_s, rhsc)) |