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| author | Richard Guenther <rguenther@suse.de> | 2007-04-18 11:45:09 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2007-04-18 11:45:09 +0000 |
| commit | 3b48ccbc89aef4e24f5f46e4f90cc793ed43df29 (patch) | |
| tree | 23793781d436a1c62b25d540d256d241df35a7e0 /gcc/tree-pass.h | |
| parent | 383862e8129603b9e8a65bb3d5c5b20e75026495 (diff) | |
| download | gcc-3b48ccbc89aef4e24f5f46e4f90cc793ed43df29.zip gcc-3b48ccbc89aef4e24f5f46e4f90cc793ed43df29.tar.gz gcc-3b48ccbc89aef4e24f5f46e4f90cc793ed43df29.tar.bz2 | |
re PR tree-optimization/19431 (missed optimization with ifs and deferencing)
2007-04-18 Richard Guenther <rguenther@suse.de>
PR tree-optimization/19431
PR tree-optimization/21463
* tree-pass.h (pass_phiprop): Declare.
* passes.c (init_optimization_passes): New phiprop pass.
* tree-ssa-forwprop.c (struct phiprop_d): New structure.
(phivn_valid_p): New helper function.
(phiprop_insert_phi): Likewise.
(propagate_with_phi): Likewise.
(tree_ssa_phiprop): New propagator propagating loads
through phi nodes if profitable.
* gcc.c-torture/execute/20070212-1.c: New testcase.
* gcc.c-torture/execute/20070212-2.c: Likewise.
* gcc.c-torture/execute/20070212-3.c: Likewise.
* gcc.dg/tree-ssa/pr19431.c: Likewise.
* gcc.dg/tree-ssa/pr21463.c: Likewise.
* g++.dg/tree-ssa/pr21463.C: Likewise.
* g++.dg/tree-ssa/pr30738.C: Likewise.
From-SVN: r123946
Diffstat (limited to 'gcc/tree-pass.h')
| -rw-r--r-- | gcc/tree-pass.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/tree-pass.h b/gcc/tree-pass.h index ed4fb47..1b92f8c 100644 --- a/gcc/tree-pass.h +++ b/gcc/tree-pass.h @@ -285,6 +285,7 @@ extern struct tree_opt_pass pass_warn_function_return; extern struct tree_opt_pass pass_warn_function_noreturn; extern struct tree_opt_pass pass_phiopt; extern struct tree_opt_pass pass_forwprop; +extern struct tree_opt_pass pass_phiprop; extern struct tree_opt_pass pass_dse; extern struct tree_opt_pass pass_nrv; extern struct tree_opt_pass pass_mark_used_blocks; |