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| author | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-02-08 03:36:35 +0000 |
|---|---|---|
| committer | rth <rth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2002-02-08 03:36:35 +0000 |
| commit | d2aa2d17ec7846b227792204623ff71c43ebfade (patch) | |
| tree | 12d5a23167dec00ec887438effdb7e200979e0b6 | |
| parent | 3ff150a90f5a17e6311251cd33bf904baf9ffaac (diff) | |
| download | ppe42-gcc-d2aa2d17ec7846b227792204623ff71c43ebfade.tar.gz ppe42-gcc-d2aa2d17ec7846b227792204623ff71c43ebfade.zip | |
* loop.c (strength_reduce): Sink final_value when not
eliminating a biv.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@49606 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/loop.c | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 019a5eccf63..23bde4ae480 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2002-02-07 Richard Henderson <rth@redhat.com> + + * loop.c (strength_reduce): Sink final_value when not + eliminating a biv. + 2002-02-07 David O'Brien <obrien@FreeBSD.org> * config/sparc/freebsd.h: Fix mismatched spec {. diff --git a/gcc/loop.c b/gcc/loop.c index 5c92ec37cf2..f675a87f0de 100644 --- a/gcc/loop.c +++ b/gcc/loop.c @@ -5143,6 +5143,11 @@ strength_reduce (loop, flags) fprintf (loop_dump_stream, "Reg %d: biv eliminated\n", bl->regno); } + /* See above note wrt final_value. But since we couldn't eliminate + the biv, we must set the value after the loop instead of before. */ + else if (bl->final_value && ! bl->reversed) + loop_insn_sink (loop, gen_move_insn (bl->biv->dest_reg, + bl->final_value)); } /* Go through all the instructions in the loop, making all the |
