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| author | J"orn Rennecke <amylaar@cygnus.co.uk> | 1999-05-27 01:46:21 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1999-05-26 19:46:21 -0600 |
| commit | 2485126f2d78e5e03ee82d8328dc2e10f94eac1c (patch) | |
| tree | b5f8235a6c1aeb362f840deb9ef6b6ea01d6f0c1 | |
| parent | b040e3a22c6f326d780129af3e55de52649bcdde (diff) | |
| download | gcc-2485126f2d78e5e03ee82d8328dc2e10f94eac1c.zip gcc-2485126f2d78e5e03ee82d8328dc2e10f94eac1c.tar.gz gcc-2485126f2d78e5e03ee82d8328dc2e10f94eac1c.tar.bz2 | |
* loop.c (strength_reduce): Don't do biv->giv conversion on constants.
From-SVN: r27194
| -rw-r--r-- | gcc/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/loop.c | 2 |
2 files changed, 6 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2ea55b8..f6c768a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,7 @@ +Thu May 27 02:40:48 1999 J"orn Rennecke <amylaar@cygnus.co.uk> + + * loop.c (strength_reduce): Don't do biv->giv conversion on constants. + Thu May 27 02:09:27 1999 Jeffrey A Law (law@cygnus.com) * reload.c (push_reload): Do not call remove_address_replacements @@ -4193,6 +4193,8 @@ strength_reduce (scan_start, end, loop_top, insn_count, || ! next->always_executed || next->maybe_multiple || ! CONSTANT_P (next->add_val) + || v->mult_val != const1_rtx + || next->mult_val != const1_rtx || ! (biv_dead_after_loop || no_jumps_between_p (v->insn, next->insn))) { |