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| author | Richard Guenther <rguenther@suse.de> | 2006-12-14 13:14:23 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2006-12-14 13:14:23 +0000 |
| commit | 28f4586bf8676b0c6a44d239e366432d5e1fbe1b (patch) | |
| tree | ff05698d7bed697273367ce096bf05306d5df40e /gcc/tree-ssa-pre.c | |
| parent | 9f5396713d9e188bad160c5816f3bfd21b6f32ca (diff) | |
| download | gcc-28f4586bf8676b0c6a44d239e366432d5e1fbe1b.zip gcc-28f4586bf8676b0c6a44d239e366432d5e1fbe1b.tar.gz gcc-28f4586bf8676b0c6a44d239e366432d5e1fbe1b.tar.bz2 | |
re PR middle-end/30197 (cexp ( __complex__ ( 0, x ) ) can be folded to cexpi (x))
2006-12-14 Richard Guenther <rguenther@suse.de>
PR tree-optimization/30197
* builtins.c (fold_builtin_cexp): New function to fold cexp
to cexpi and exp parts.
* tree-ssa-pre.c (try_combine_conversion): Also handle
REALPART_EXPR and IMAGPART_EXPR.
* gcc.c-torture/execute/complex-1.c: Fix function name.
* gcc.dg/builtins-61.c: New testcase.
From-SVN: r119860
Diffstat (limited to 'gcc/tree-ssa-pre.c')
| -rw-r--r-- | gcc/tree-ssa-pre.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/tree-ssa-pre.c b/gcc/tree-ssa-pre.c index 871006d..72af16d 100644 --- a/gcc/tree-ssa-pre.c +++ b/gcc/tree-ssa-pre.c @@ -3613,7 +3613,9 @@ try_combine_conversion (tree *expr_p) unsigned int firstbit; if (!((TREE_CODE (expr) == NOP_EXPR - || TREE_CODE (expr) == CONVERT_EXPR) + || TREE_CODE (expr) == CONVERT_EXPR + || TREE_CODE (expr) == REALPART_EXPR + || TREE_CODE (expr) == IMAGPART_EXPR) && TREE_CODE (TREE_OPERAND (expr, 0)) == VALUE_HANDLE && !VALUE_HANDLE_VUSES (TREE_OPERAND (expr, 0)))) return false; |