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| author | davidxl <davidxl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-06-04 21:49:45 +0000 |
|---|---|---|
| committer | davidxl <davidxl@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-06-04 21:49:45 +0000 |
| commit | e6a23add8ced32740537095333313e2b2d51ad76 (patch) | |
| tree | e298fb5d3a5ce2f2f94d42716feeeb493ca9e188 /gcc/opts.c | |
| parent | da08da6924795bffe4adc8e53feb53a3ff311ff7 (diff) | |
| download | gcc-e6a23add8ced32740537095333313e2b2d51ad76.tar.gz | |
2008-06-04 Xinliang David Li <davidxl@google.com>
* tree-call-cdce.c: New file.
(cond_dead_built_in_calls): New static variable.
(input_domain): New struct.
(check_pow): New function.
(check_builtin_call): Ditto.
(check_target_format): Ditto.
(is_call_dce_candidate): Ditto.
(gen_one_condition): Ditto.
(gen_conditions_for_domain): Ditto.
(get_domain): Ditto.
(gen_conditions_for_pow_cst_base): Ditto.
(gen_conditions_for_pow_int_base): Ditto.
(gen_conditions_for_pow): Ditto.
(get_no_error_domain): Ditto.
(gen_shrink_wrap_conditions): Ditto.
(shrink_wrap_one_built_in_call): Ditto.
(shink_wrap_conditional_dead_built_in_calls): Ditto.
(tree_call_cdce): Ditto.
(gate_call_cdce): Ditto.
(pass_call_cdce): New gimple pass.
* passes.c: (init_optimization_passes): New pass.
* tree-pass.h: New pass declaration.
* opts.c (decode_options): New flag setting.
* common.opt: Add -ftree-builtin-call-dce flag.
* Makefile.in: Add new source file.
* tempvar.def: New tv_id.
* doc/invoke.texi (-ftree-builtin-call-dce): New flag.
2008-06-04 Xinliang David Li <davidxl@google.com>
* gcc.dg/cdce1.c: New test.
* gcc.dg/cdce2.c: Ditto.
* g++.dg/cdce3.C: Ditto.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@136374 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/opts.c')
| -rw-r--r-- | gcc/opts.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/opts.c b/gcc/opts.c index 7add8d3d250..d86c2b34be8 100644 --- a/gcc/opts.c +++ b/gcc/opts.c @@ -889,6 +889,8 @@ decode_options (unsigned int argc, const char **argv) if (!optimize_size) { + /* Conditional DCE generates bigger code. */ + flag_tree_builtin_call_dce = 1; /* PRE tends to generate bigger code. */ flag_tree_pre = 1; } |