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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-02-06 10:08:51 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-02-06 10:08:51 +0000 |
| commit | 2f63c0d34fe9b5c52d7219dba0e020af81dea288 (patch) | |
| tree | 8a4fe0b6462bc893be59144efa432a63614a626b /gcc/unroll.c | |
| parent | 2ed85bb65a694112c701d0e29c1d8cb6887d2da6 (diff) | |
| download | gcc-2f63c0d34fe9b5c52d7219dba0e020af81dea288.tar.gz | |
* unroll.c (find_splittable_givs): After express_from, call replace_rtx
to convert dest_reg to new_reg.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25056 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/unroll.c')
| -rw-r--r-- | gcc/unroll.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/unroll.c b/gcc/unroll.c index bb5770d44fd..8737544ae68 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -2900,7 +2900,7 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment, copy_loop_body works around the problem for the DEST_REG givs themselves, but it can't handle DEST_ADDR givs that have been combined with - derived a derived DEST_REG giv. + a derived DEST_REG giv. So Handle V as if the giv from which V->SAME has been derived has been combined with V. recombine_givs only derives givs from givs that @@ -2909,6 +2909,8 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment, same = same->derived_from; new_reg = express_from (same, v); + new_reg = replace_rtx (new_reg, same->dest_reg, + same->new_reg); } /* If the address giv has a constant in its new_reg value, @@ -3025,6 +3027,8 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment, v->same = v->same->derived_from; v->new_reg = express_from (v->same, v); + v->new_reg = replace_rtx (v->new_reg, v->same->dest_reg, + v->same->new_reg); } } |