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| author | Jakub Jelinek <jakub@redhat.com> | 2018-01-03 21:59:50 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-01-03 21:59:50 +0100 |
| commit | e3bd17639b20e009238b15b2354bb0e87e29703e (patch) | |
| tree | a58435136e940314c87eea77cd3f32c0de08343a /gcc/cfgexpand.c | |
| parent | e3a174d0d1eef07442fca5867cfcdd05f3b845f8 (diff) | |
| download | gcc-e3bd17639b20e009238b15b2354bb0e87e29703e.zip gcc-e3bd17639b20e009238b15b2354bb0e87e29703e.tar.gz gcc-e3bd17639b20e009238b15b2354bb0e87e29703e.tar.bz2 | |
re PR debug/83621 (ICE: in simplify_subreg, at simplify-rtx.c:6293 with -O -g)
PR debug/83621
* cfgexpand.c (expand_debug_expr): Return NULL if mode is
BLKmode for ternary, binary or unary expressions.
* gcc.dg/pr83621.c: New test.
From-SVN: r256190
Diffstat (limited to 'gcc/cfgexpand.c')
| -rw-r--r-- | gcc/cfgexpand.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/cfgexpand.c b/gcc/cfgexpand.c index a7f3894..257ddfc 100644 --- a/gcc/cfgexpand.c +++ b/gcc/cfgexpand.c @@ -4208,6 +4208,8 @@ expand_debug_expr (tree exp) binary: case tcc_binary: + if (mode == BLKmode) + return NULL_RTX; op1 = expand_debug_expr (TREE_OPERAND (exp, 1)); if (!op1) return NULL_RTX; @@ -4232,6 +4234,8 @@ expand_debug_expr (tree exp) unary: case tcc_unary: + if (mode == BLKmode) + return NULL_RTX; inner_mode = TYPE_MODE (TREE_TYPE (TREE_OPERAND (exp, 0))); op0 = expand_debug_expr (TREE_OPERAND (exp, 0)); if (!op0) |