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authordberlin <dberlin@138bc75d-0d04-0410-961f-82ee72b054a4>2005-03-01 17:59:06 +0000
committerdberlin <dberlin@138bc75d-0d04-0410-961f-82ee72b054a4>2005-03-01 17:59:06 +0000
commit5e733b0261a2650d1574be49c7e155768003c59d (patch)
tree126cecfe4e30597e3e21ba835c4893c2e3f19195 /gcc/opts.c
parent3cc68dd82f269732a8dc175645f1ea36fd8bcd86 (diff)
downloadgcc-5e733b0261a2650d1574be49c7e155768003c59d.tar.gz
2005-03-01 Daniel Berlin <dberlin@dberlin.org>
* Makefile.in (tree-ssa-sink.o): New. (OBJS-common): Add tree-ssa-sink.o. * common.opt: Add -ftree-sink * opts.c (decode_options): flag_tree_sink is set at O1 or higher. * timevar.def (TV_TREE_SINK): new timevar. * tree-flow.h (is_hidden_global_store): Prototype. * tree-optimize.c (init_tree_optimization_passes): Add pass_sink_code. * tree-pass.h (pass_sink_code): New. * tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Move checking for non-obvious global store store to is_hidden_global_store, and call that new function. * tree-ssa-sink.c: New file. * doc/invoke.texi: Document -fdump-tree-sink and -ftree-sink. * doc/passes.texi: Document forward store motion. * testsuite/gcc.dg/tree-ssa/ssa-sink-1.c: New test * testsuite/gcc.dg/tree-ssa/ssa-sink-2.c: New test * testsuite/gcc.dg/tree-ssa/ssa-sink-3.c: New test * testsuite/gcc.dg/tree-ssa/ssa-sink-4.c: New test git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@95750 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/opts.c')
-rw-r--r--gcc/opts.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/opts.c b/gcc/opts.c
index fcb8f6d5c1a..9ab16f0f562 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -501,6 +501,7 @@ decode_options (unsigned int argc, const char **argv)
flag_tree_sra = 1;
flag_tree_copyrename = 1;
flag_tree_fre = 1;
+ flag_tree_sink = 1;
if (!optimize_size)
{