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tree-ssa-pre.c (fully_constant_expression): Add fold_convert calls. 

2008-07-13  Daniel Berlin  <dberlin@dberlin.org>

	* tree-ssa-pre.c (fully_constant_expression): Add fold_convert
	calls.
	(create_expression_by_pieces): Fix typo.
	(do_regular_insertion): Use debug counter here too.

From-SVN: r137774
This commit is contained in:
Daniel Berlin 2008-07-14 04:17:55 +00:00 committed by Daniel Berlin
parent 6efc56edbe
commit b463e8de6c
2 changed files with 26 additions and 8 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2008-07-13 Daniel Berlin <dberlin@dberlin.org>
* tree-ssa-pre.c (fully_constant_expression): Add fold_convert
calls.
(create_expression_by_pieces): Fix typo.
(do_regular_insertion): Use debug counter here too.
2008-07-14 Hans-Peter Nilsson <hp@axis.com> 2008-07-14 Hans-Peter Nilsson <hp@axis.com>
PR target/35492. PR target/35492.

21
gcc/tree-ssa-pre.c
View File

@ -1068,8 +1068,14 @@ fully_constant_expression (pre_expr e)
tree const1 = get_constant_for_value_id (vrep1); tree const1 = get_constant_for_value_id (vrep1);
tree result = NULL; tree result = NULL;
if (const0 && const1) if (const0 && const1)
{
tree type1 = TREE_TYPE (nary->op[0]);
tree type2 = TREE_TYPE (nary->op[1]);
const0 = fold_convert (type1, const0);
const1 = fold_convert (type2, const1);
result = fold_binary (nary->opcode, nary->type, const0, result = fold_binary (nary->opcode, nary->type, const0,
const1); const1);
}
if (result && is_gimple_min_invariant (result)) if (result && is_gimple_min_invariant (result))
return get_or_alloc_expr_for_constant (result); return get_or_alloc_expr_for_constant (result);
return e; return e;
@ -1084,7 +1090,12 @@ fully_constant_expression (pre_expr e)
tree const0 = get_constant_for_value_id (vrep0); tree const0 = get_constant_for_value_id (vrep0);
tree result = NULL; tree result = NULL;
if (const0) if (const0)
{
tree type1 = TREE_TYPE (nary->op[0]);
const0 = fold_convert (type1, const0);
result = fold_unary (nary->opcode, nary->type, const0); result = fold_unary (nary->opcode, nary->type, const0);
}
if (result && is_gimple_min_invariant (result)) if (result && is_gimple_min_invariant (result))
return get_or_alloc_expr_for_constant (result); return get_or_alloc_expr_for_constant (result);
return e; return e;
@ -2701,7 +2712,7 @@ create_expression_by_pieces (basic_block block, pre_expr expr, tree stmts,
if (nary->opcode == POINTER_PLUS_EXPR) if (nary->opcode == POINTER_PLUS_EXPR)
genop2 = fold_convert (sizetype, genop2); genop2 = fold_convert (sizetype, genop2);
else else
genop2 = fold_convert (TREE_TYPE (nary->op[0]), genop2); genop2 = fold_convert (TREE_TYPE (nary->op[1]), genop2);
folded = fold_build2 (nary->opcode, nary->type, folded = fold_build2 (nary->opcode, nary->type,
genop1, genop2); genop1, genop2);
@ -2945,10 +2956,10 @@ insert_into_preds_of_block (basic_block block, unsigned int exprnum,
/* When eliminating casts through unions, /* When eliminating casts through unions,
we sometimes want to convert a real to an integer, we sometimes want to convert a real to an integer,
which fold_convert will ICE on */ which fold_convert will ICE on */
if (fold_convertible_p (type, name)) /* if (fold_convertible_p (type, name)) */
builtexpr = fold_convert (type, name); builtexpr = fold_convert (type, name);
else /* else
builtexpr = convert (type, name); builtexpr = convert (type, name);*/
forcedexpr = force_gimple_operand (builtexpr, forcedexpr = force_gimple_operand (builtexpr,
&stmts, true, &stmts, true,
@ -3159,7 +3170,7 @@ do_regular_insertion (basic_block block, basic_block dom)
already existing along every predecessor, and already existing along every predecessor, and
it's defined by some predecessor, it is it's defined by some predecessor, it is
partially redundant. */ partially redundant. */
if (!cant_insert && !all_same && by_some) if (!cant_insert && !all_same && by_some && dbg_cnt (treepre_insert))
{ {
if (insert_into_preds_of_block (block, get_expression_id (expr), if (insert_into_preds_of_block (block, get_expression_id (expr),
avail)) avail))