diff options
| author | pinskia <pinskia@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-07-04 04:39:26 +0000 |
|---|---|---|
| committer | pinskia <pinskia@138bc75d-0d04-0410-961f-82ee72b054a4> | 2007-07-04 04:39:26 +0000 |
| commit | 2595dcbb4c9bc83e3fa552689d846bbcfe14cd00 (patch) | |
| tree | 236f463bef02f6702038ffc5f6ea1966a3010bf5 /gcc | |
| parent | 0115829605efb68727d310de92fd6202e30a1b5f (diff) | |
| download | gcc-2595dcbb4c9bc83e3fa552689d846bbcfe14cd00.tar.gz | |
2007-07-03 Andrew Pinski <andrew_pinski@playstation.sony.com>
* tree-ssa-loop-ivopts.c (strip_offset_1): Treat POINTER_PLUS_EXPR
like PLUS_EXPR.
(rewrite_use_nonlinear_expr): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@126298 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 14 |
2 files changed, 14 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fd5d7038026..dc785cb7d89 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2007-07-03 Andrew Pinski <andrew_pinski@playstation.sony.com> + + * tree-ssa-loop-ivopts.c (strip_offset_1): Treat POINTER_PLUS_EXPR + like PLUS_EXPR. + (rewrite_use_nonlinear_expr): Likewise. + 2007-07-03 Seongbae Park <seongbae.park@gmail.com> * rtl.def (UNSPEC, USE, CLOBBER): More comments. diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 7337d0213f3..f99a6ebf990 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -1759,6 +1759,7 @@ strip_offset_1 (tree expr, bool inside_addr, bool top_compref, *offset = int_cst_value (expr); return build_int_cst (orig_type, 0); + case POINTER_PLUS_EXPR: case PLUS_EXPR: case MINUS_EXPR: op0 = TREE_OPERAND (expr, 0); @@ -1767,7 +1768,7 @@ strip_offset_1 (tree expr, bool inside_addr, bool top_compref, op0 = strip_offset_1 (op0, false, false, &off0); op1 = strip_offset_1 (op1, false, false, &off1); - *offset = (code == PLUS_EXPR ? off0 + off1 : off0 - off1); + *offset = (code == MINUS_EXPR ? off0 - off1 : off0 + off1); if (op0 == TREE_OPERAND (expr, 0) && op1 == TREE_OPERAND (expr, 1)) return orig_expr; @@ -1776,10 +1777,10 @@ strip_offset_1 (tree expr, bool inside_addr, bool top_compref, expr = op0; else if (integer_zerop (op0)) { - if (code == PLUS_EXPR) - expr = op1; - else + if (code == MINUS_EXPR) expr = fold_build1 (NEGATE_EXPR, type, op1); + else + expr = op1; } else expr = fold_build2 (code, type, op0, op1); @@ -4893,11 +4894,12 @@ rewrite_use_nonlinear_expr (struct ivopts_data *data, thus leading to ICE. */ op = GIMPLE_STMT_OPERAND (use->stmt, 1); if (TREE_CODE (op) == PLUS_EXPR - || TREE_CODE (op) == MINUS_EXPR) + || TREE_CODE (op) == MINUS_EXPR + || TREE_CODE (op) == POINTER_PLUS_EXPR) { if (TREE_OPERAND (op, 0) == cand->var_before) op = TREE_OPERAND (op, 1); - else if (TREE_CODE (op) == PLUS_EXPR + else if (TREE_CODE (op) != MINUS_EXPR && TREE_OPERAND (op, 1) == cand->var_before) op = TREE_OPERAND (op, 0); else |