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| author | Richard Guenther <rguenther@suse.de> | 2007-09-26 11:55:17 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2007-09-26 11:55:17 +0000 |
| commit | 15caa2abe98b8a46bb0225da1d81e585d904d5f2 (patch) | |
| tree | f14afdbb50855b11471a4e6e7fc81ee87d8849f1 /gcc/testsuite/gcc.dg/large-size-array-4.c | |
| parent | 43943e4035dfaf885484faa9a1f71ec28f4677c9 (diff) | |
| download | gcc-15caa2abe98b8a46bb0225da1d81e585d904d5f2.zip gcc-15caa2abe98b8a46bb0225da1d81e585d904d5f2.tar.gz gcc-15caa2abe98b8a46bb0225da1d81e585d904d5f2.tar.bz2 | |
re PR tree-optimization/30375 (tree-ssa-dse incorrectly removes struct initialization)
2007-09-26 Richard Guenther <rguenther@suse.de>
PR tree-optimization/30375
PR tree-optimization/33560
* tree-ssa-dse.c (get_use_of_stmt_lhs): Give up on uses
with calls.
Revert
2006-05-22 Aldy Hernandez <aldyh@redhat.com>
* tree-ssa-dse.c (aggregate_vardecl_d): New.
(dse_global_data): Add aggregate_vardecl field.
(dse_possible_dead_store_p): New.
Add prev_defvar variable.
Allow immediate uses and previous immediate uses to differ
if they are setting different parts of the whole.
(get_aggregate_vardecl): New.
(dse_record_partial_aggregate_store): New.
(dse_whole_aggregate_clobbered_p): New.
(dse_partial_kill_p): New.
Call dse_maybe_record_aggregate_store().
When checking whether a STMT and its USE_STMT refer to the
same memory address, check also for partial kills that clobber
the whole.
Move some variable definitions to the block where they are used.
(aggregate_vardecl_hash): New.
(aggregate_vardecl_eq): New.
(aggregate_vardecl_free): New.
(aggregate_whole_store_p): New.
(tree_ssa_dse): Initialize and free aggregate_vardecl.
Mark which aggregate stores we care about.
* gcc.dg/tree-ssa/complex-4.c: XFAIL.
* gcc.dg/tree-ssa/complex-5.c: Likewise.
* gcc.dg/tree-ssa/ssa-dse-9.c: Likewise.
* gcc.dg/torture/pr30375.c: New testcase.
* gcc.dg/torture/pr33560.c: New testcase.
* gcc.dg/tree-ssa/pr30375.c: Likewise.
From-SVN: r128810
Diffstat (limited to 'gcc/testsuite/gcc.dg/large-size-array-4.c')
0 files changed, 0 insertions, 0 deletions