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| author | Richard Guenther <rguenther@suse.de> | 2006-07-07 16:30:36 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2006-07-07 16:30:36 +0000 |
| commit | bfabddb6c0307307e963bf1388fcad0b8a00ba5c (patch) | |
| tree | 6a1baa8ebb8584cddfcf0a2c3567372718ab3933 /gcc/tree-ssa-math-opts.c | |
| parent | c6d0959c4b87ca27e45d827baf9b53071513a00b (diff) | |
| download | gcc-bfabddb6c0307307e963bf1388fcad0b8a00ba5c.zip gcc-bfabddb6c0307307e963bf1388fcad0b8a00ba5c.tar.gz gcc-bfabddb6c0307307e963bf1388fcad0b8a00ba5c.tar.bz2 | |
re PR middle-end/28268 (ICE with simple vector operations)
2006-07-07 Richard Guenther <rguenther@suse.de>
PR middle-end/28268
* tree.h (build_one_cst): Declare.
* tree.c (build_one_cst): New function.
* tree-ssa-math-opts.c (get_constant_one): Remove.
(insert_reciprocals): Use build_one_cst.
* fold-const.c (fold_plusminus_mult): Likewise.
* gcc.dg/torture/pr28268.c: New testcase.
From-SVN: r115263
Diffstat (limited to 'gcc/tree-ssa-math-opts.c')
| -rw-r--r-- | gcc/tree-ssa-math-opts.c | 31 |
1 files changed, 1 insertions, 30 deletions
diff --git a/gcc/tree-ssa-math-opts.c b/gcc/tree-ssa-math-opts.c index 950b9aa..1ff0628 100644 --- a/gcc/tree-ssa-math-opts.c +++ b/gcc/tree-ssa-math-opts.c @@ -279,35 +279,6 @@ is_division_by (tree use_stmt, tree def) && TREE_OPERAND (TREE_OPERAND (use_stmt, 1), 1) == def; } -/* Return the LHS of a RDIV_EXPR that computes a reciprocal in type TYPE. */ -static tree -get_constant_one (tree type) -{ - tree scalar, cst; - int i; - - gcc_assert (FLOAT_TYPE_P (type)); - switch (TREE_CODE (type)) - { - case REAL_TYPE: - return build_real (type, dconst1); - - case VECTOR_TYPE: - scalar = build_real (TREE_TYPE (type), dconst1); - - /* Create 'vect_cst_ = {cst,cst,...,cst}' */ - cst = NULL_TREE; - for (i = TYPE_VECTOR_SUBPARTS (type); --i >= 0; ) - cst = tree_cons (NULL_TREE, scalar, cst); - - return build_vector (type, cst); - - default: - /* Complex operations have been split already. */ - gcc_unreachable (); - } -} - /* Walk the subset of the dominator tree rooted at OCC, setting the RECIP_DEF field to a definition of 1.0 / DEF that can be used in the given basic block. The field may be left NULL, of course, @@ -333,7 +304,7 @@ insert_reciprocals (block_stmt_iterator *def_bsi, struct occurrence *occ, type = TREE_TYPE (def); recip_def = make_rename_temp (type, "reciptmp"); new_stmt = build2 (MODIFY_EXPR, void_type_node, recip_def, - fold_build2 (RDIV_EXPR, type, get_constant_one (type), + fold_build2 (RDIV_EXPR, type, build_one_cst (type), def)); |