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| author | Richard Biener <rguenther@suse.de> | 2019-03-21 14:27:32 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2019-03-21 14:27:32 +0000 |
| commit | 6d1a7fd4507f94d5ba1ac3216330280a4751a599 (patch) | |
| tree | 18b7ef21746ac24ef6c1d79d6e6d37f58ce0d026 /gcc/tree.c | |
| parent | e2186cd88ed9015ad0cd6f265daa164648d30f74 (diff) | |
| download | gcc-6d1a7fd4507f94d5ba1ac3216330280a4751a599.zip gcc-6d1a7fd4507f94d5ba1ac3216330280a4751a599.tar.gz gcc-6d1a7fd4507f94d5ba1ac3216330280a4751a599.tar.bz2 | |
re PR middle-end/89779 (internal compiler error: tree check: expected class ‘type’, have ‘exceptional’ (error_mark) in tree_nop_conversion_p, at tree.c:12798)
2019-03-21 Richard Biener <rguenther@suse.de>
PR tree-optimization/89779
* tree.c (tree_nop_conversion): Consolidate and fix defensive
checks with respect to released SSA names now having error_mark_node
type.
* fold-const.c (operand_equal_p): Likewise.
* gcc.dg/torture/pr89779.c: New testcase.
From-SVN: r269838
Diffstat (limited to 'gcc/tree.c')
| -rw-r--r-- | gcc/tree.c | 5 |
1 files changed, 1 insertions, 4 deletions
@@ -12812,13 +12812,10 @@ tree_nop_conversion (const_tree exp) if (!CONVERT_EXPR_P (exp) && TREE_CODE (exp) != NON_LVALUE_EXPR) return false; - if (TREE_OPERAND (exp, 0) == error_mark_node) - return false; outer_type = TREE_TYPE (exp); inner_type = TREE_TYPE (TREE_OPERAND (exp, 0)); - - if (!inner_type) + if (!inner_type || inner_type == error_mark_node) return false; return tree_nop_conversion_p (outer_type, inner_type); |