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| author | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-04-26 12:43:42 +0000 |
|---|---|---|
| committer | bernds <bernds@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-04-26 12:43:42 +0000 |
| commit | 1c0ba1615acb3744c168ebd830b708b518d09207 (patch) | |
| tree | b55111700e1dc103310e51e5baf0721a2fab537e | |
| parent | 78d0c69e51362cc2ea521843b29920ad0181ac2a (diff) | |
| download | gcc-1c0ba1615acb3744c168ebd830b708b518d09207.tar.gz | |
Enable -frename-registers at -O2.
PR rtl-optimization/57193
* opts.c (default_options_table): Add OPT_frename_registers at -O2
and above.
* doc/invoke.texi (-frename-registers, -O2): Update documentation.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@235442 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/doc/invoke.texi | 4 | ||||
| -rw-r--r-- | gcc/opts.c | 1 |
3 files changed, 11 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index dfc008167cc..f43934566ee 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2016-04-26 Bernd Schmidt <bschmidt@redhat.com> + + PR rtl-optimization/57193 + * opts.c (default_options_table): Add OPT_frename_registers at -O2 + and above. + * doc/invoke.texi (-frename-registers, -O2): Update documentation. + 2016-04-26 Bin Cheng <bin.cheng@arm.com> * tree-if-conv.c (any_pred_load_store): New static variable. diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 0f97e6d912c..2617cb458ba 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -6255,6 +6255,7 @@ also turns on the following optimization flags: -foptimize-strlen @gol -fpartial-inlining @gol -fpeephole2 @gol +-frename-registers @gol -freorder-blocks-algorithm=stc @gol -freorder-blocks-and-partition -freorder-functions @gol -frerun-cse-after-loop @gol @@ -8562,7 +8563,8 @@ debug information format adopted by the target, however, it can make debugging impossible, since variables no longer stay in a ``home register''. -Enabled by default with @option{-funroll-loops} and @option{-fpeel-loops}. +Enabled by default with @option{-funroll-loops} and @option{-fpeel-loops}, +and also enabled at levels @option{-O2} and @option{-O3}. @item -fschedule-fusion @opindex fschedule-fusion diff --git a/gcc/opts.c b/gcc/opts.c index 0f9431a0b32..649b84b3f6f 100644 --- a/gcc/opts.c +++ b/gcc/opts.c @@ -498,6 +498,7 @@ static const struct default_options default_options_table[] = { OPT_LEVELS_2_PLUS, OPT_fstrict_overflow, NULL, 1 }, { OPT_LEVELS_2_PLUS_SPEED_ONLY, OPT_freorder_blocks_algorithm_, NULL, REORDER_BLOCKS_ALGORITHM_STC }, + { OPT_LEVELS_2_PLUS, OPT_frename_registers, NULL, 1 }, { OPT_LEVELS_2_PLUS, OPT_freorder_functions, NULL, 1 }, { OPT_LEVELS_2_PLUS, OPT_ftree_vrp, NULL, 1 }, { OPT_LEVELS_2_PLUS, OPT_ftree_pre, NULL, 1 }, |