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| author | Jim Wilson <wilson@cygnus.com> | 1997-11-09 08:35:46 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1997-11-09 01:35:46 -0700 |
| commit | 64fde7010b6a3a678df227c06df09815d3aaec2b (patch) | |
| tree | 12af167c241103efc33f01c8678cdd994064d5a1 | |
| parent | 69f9c1f69e285e99979f61452634874744998481 (diff) | |
| download | gcc-64fde7010b6a3a678df227c06df09815d3aaec2b.zip gcc-64fde7010b6a3a678df227c06df09815d3aaec2b.tar.gz gcc-64fde7010b6a3a678df227c06df09815d3aaec2b.tar.bz2 | |
flags.h (flag_rerun_loop_opt): Declare.
* flags.h (flag_rerun_loop_opt): Declare.
* loop.c (invariant_p, case LABEL_REF): Check flag_rerun_loop_opt.
* toplev.c (flag_rerum_loop_opt): Delete static.
From-SVN: r16389
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/flags.h | 4 | ||||
| -rw-r--r-- | gcc/loop.c | 7 | ||||
| -rw-r--r-- | gcc/toplev.c | 2 |
4 files changed, 17 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5db233f..aaaa939 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +Sun Nov 9 01:37:11 1997 Jim Wilson (wilson@cygnus.com) + + * flags.h (flag_rerun_loop_opt): Declare. + * loop.c (invariant_p, case LABEL_REF): Check flag_rerun_loop_opt. + * toplev.c (flag_rerum_loop_opt): Delete static. + Sat Nov 8 18:20:21 1997 J"orn Rennecke <amylaar@cygnus.co.uk> * sh.h (ENABLE_REGMOVE_PASS): Define. diff --git a/gcc/flags.h b/gcc/flags.h index 5b3c763..ba05720 100644 --- a/gcc/flags.h +++ b/gcc/flags.h @@ -275,6 +275,10 @@ extern int flag_volatile_global; extern int flag_fast_math; +/* Nonzero means to run loop optimizations twice. */ + +extern int flag_rerun_loop_opt; + /* Nonzero means make functions that look like good inline candidates go inline. */ @@ -2847,7 +2847,12 @@ invariant_p (x) We don't know the loop bounds here though, so just fail for all labels. */ - if (flag_unroll_loops) + /* ??? This is also necessary if flag_rerun_loop_opt is true, because in + this case we may be doing loop unrolling the second time we run loop, + and hence the first loop run also needs this check. There is no way + to check here whether the second run will actually do loop unrolling + though, as that info is in a local var in rest_of_compilation. */ + if (flag_unroll_loops || flag_rerun_loop_opt) return 0; else return 1; diff --git a/gcc/toplev.c b/gcc/toplev.c index 956d78e..aeffbb3 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -508,7 +508,7 @@ static int flag_rerun_cse_after_loop; /* Nonzero means to run loop optimizations twice. */ -static int flag_rerun_loop_opt; +int flag_rerun_loop_opt; /* Nonzero for -finline-functions: ok to inline functions that look like good inline candidates. */ |