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| author | Doug Evans <dje@gnu.org> | 1994-01-08 19:56:03 +0000 |
|---|---|---|
| committer | Doug Evans <dje@gnu.org> | 1994-01-08 19:56:03 +0000 |
| commit | 9e9b48a4a2f611d7714ccb494b3072ae6a2a2b00 (patch) | |
| tree | 291345501a40229cb55434c08f17c62573fdb698 | |
| parent | 919ea6a5c3b1ba02bd0c41bcfacafbfaf83a4fae (diff) | |
| download | gcc-9e9b48a4a2f611d7714ccb494b3072ae6a2a2b00.zip gcc-9e9b48a4a2f611d7714ccb494b3072ae6a2a2b00.tar.gz gcc-9e9b48a4a2f611d7714ccb494b3072ae6a2a2b00.tar.bz2 | |
(rest_of_compilation): jump_optimize can change max_reg_num so rerun reg_scan
before calling cse_main.
From-SVN: r6360
| -rw-r--r-- | gcc/toplev.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/gcc/toplev.c b/gcc/toplev.c index e98e548..569e069 100644 --- a/gcc/toplev.c +++ b/gcc/toplev.c @@ -2561,10 +2561,13 @@ rest_of_compilation (decl) { /* Running another jump optimization pass before the second cse pass sometimes simplifies the RTL enough to allow - the second CSE pass to do a better job. */ - TIMEVAR (cse2_time, reg_scan (insns, max_reg_num (), 0)); + the second CSE pass to do a better job. Jump_optimize can change + max_reg_num so we must rerun reg_scan afterwards. + ??? Rework to not call reg_scan so often. */ + TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 1)); + TIMEVAR (cse2_time, reg_scan (insns, max_reg_num (), 0)); TIMEVAR (cse2_time, tem = cse_main (insns, max_reg_num (), 1, cse2_dump_file)); if (tem) |