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| author | Richard Guenther <rguenther@suse.de> | 2011-10-10 15:45:53 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2011-10-10 15:45:53 +0000 |
| commit | a24ac4609a87536a62a27dd7976bf6ee0acc468f (patch) | |
| tree | f8a62b9ac946da08fd1b85696236a2dda0edcb5c /gcc/gimple-fold.c | |
| parent | 40b6510f2e15672a4027cbd1395bb75ffd5920bc (diff) | |
| download | gcc-a24ac4609a87536a62a27dd7976bf6ee0acc468f.zip gcc-a24ac4609a87536a62a27dd7976bf6ee0acc468f.tar.gz gcc-a24ac4609a87536a62a27dd7976bf6ee0acc468f.tar.bz2 | |
re PR tree-optimization/50389 (ICE: in execute_todo, at passes.c:1730 with -O -freorder-blocks -ftracer and __builtin___memcpy_chk())
2011-10-10 Richard Guenther <rguenther@suse.de>
PR middle-end/50389
* gimple-fold.c (gimplify_and_update_call_from_tree): Do not
mark symbols for renaming. Append the VUSE to all statements
that possibly can have one.
* gcc.dg/torture/pr50389.c: New testcase.
From-SVN: r179757
Diffstat (limited to 'gcc/gimple-fold.c')
| -rw-r--r-- | gcc/gimple-fold.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/gcc/gimple-fold.c b/gcc/gimple-fold.c index b4993fd..7df7e69 100644 --- a/gcc/gimple-fold.c +++ b/gcc/gimple-fold.c @@ -588,13 +588,10 @@ gimplify_and_update_call_from_tree (gimple_stmt_iterator *si_p, tree expr) } new_stmt = gsi_stmt (i); if (gimple_in_ssa_p (cfun)) - { - find_new_referenced_vars (new_stmt); - mark_symbols_for_renaming (new_stmt); - } - /* If the new statement has a VUSE, update it with exact SSA name we - know will reach this one. */ - if (gimple_vuse (new_stmt)) + find_new_referenced_vars (new_stmt); + /* If the new statement possibly has a VUSE, update it with exact SSA + name we know will reach this one. */ + if (gimple_has_mem_ops (new_stmt)) { /* If we've also seen a previous store create a new VDEF for the latter one, and make that the new reaching VUSE. */ |