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| author | Andrew Pinski <andrew_pinski@playstation.sony.com> | 2007-07-04 04:39:26 +0000 |
|---|---|---|
| committer | Andrew Pinski <pinskia@gcc.gnu.org> | 2007-07-03 21:39:26 -0700 |
| commit | 2d1a1007a08a449f45c830d78e955ed9bb2a23ca (patch) | |
| tree | 236f463bef02f6702038ffc5f6ea1966a3010bf5 /gcc/tree-ssa-loop-ivopts.c | |
| parent | cc0ca512037ada71ad22dc1da54fa9fd79b11fca (diff) | |
| download | gcc-2d1a1007a08a449f45c830d78e955ed9bb2a23ca.zip gcc-2d1a1007a08a449f45c830d78e955ed9bb2a23ca.tar.gz gcc-2d1a1007a08a449f45c830d78e955ed9bb2a23ca.tar.bz2 | |
tree-ssa-loop-ivopts.c (strip_offset_1): Treat POINTER_PLUS_EXPR like PLUS_EXPR.
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.
From-SVN: r126298
Diffstat (limited to 'gcc/tree-ssa-loop-ivopts.c')
| -rw-r--r-- | gcc/tree-ssa-loop-ivopts.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 7337d02..f99a6eb 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 |