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| author | Jakub Jelinek <jakub@redhat.com> | 2011-01-06 11:37:02 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-01-06 11:37:02 +0100 |
| commit | dfe776dd95beeff5e8d5bcd53d07f8c62ae69999 (patch) | |
| tree | e01fb2e7447c61db75f8096bc82cb4f7c48a43d8 /gcc/c-convert.c | |
| parent | 4192922c749ba0e0ca94b734ccabca8245520f9d (diff) | |
| download | gcc-dfe776dd95beeff5e8d5bcd53d07f8c62ae69999.zip gcc-dfe776dd95beeff5e8d5bcd53d07f8c62ae69999.tar.gz gcc-dfe776dd95beeff5e8d5bcd53d07f8c62ae69999.tar.bz2 | |
re PR c/47150 (ICE in gimplify_expr at gimplify.c)
PR c/47150
* c-convert.c (convert): When converting a complex expression
other than COMPLEX_EXPR to a different complex type, ensure
c_save_expr is called instead of save_expr, unless in_late_binary_op.
* c-typeck.c (convert_for_assignment): Set in_late_binary_op also
when converting COMPLEX_TYPE.
* gcc.c-torture/compile/pr47150.c: New test.
From-SVN: r168537
Diffstat (limited to 'gcc/c-convert.c')
| -rw-r--r-- | gcc/c-convert.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/gcc/c-convert.c b/gcc/c-convert.c index f67aecf..f4583c5 100644 --- a/gcc/c-convert.c +++ b/gcc/c-convert.c @@ -130,6 +130,32 @@ convert (tree type, tree expr) goto maybe_fold; case COMPLEX_TYPE: + /* If converting from COMPLEX_TYPE to a different COMPLEX_TYPE + and e is not COMPLEX_EXPR, convert_to_complex uses save_expr, + but for the C FE c_save_expr needs to be called instead. */ + if (TREE_CODE (TREE_TYPE (e)) == COMPLEX_TYPE) + { + tree subtype = TREE_TYPE (type); + tree elt_type = TREE_TYPE (TREE_TYPE (e)); + + if (TYPE_MAIN_VARIANT (elt_type) != TYPE_MAIN_VARIANT (subtype) + && TREE_CODE (e) != COMPLEX_EXPR) + { + if (in_late_binary_op) + e = save_expr (e); + else + e = c_save_expr (e); + ret + = fold_build2 (COMPLEX_EXPR, type, + convert (subtype, + fold_build1 (REALPART_EXPR, + elt_type, e)), + convert (subtype, + fold_build1 (IMAGPART_EXPR, + elt_type, e))); + goto maybe_fold; + } + } ret = convert_to_complex (type, e); goto maybe_fold; |