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[Bug tree-optimization/68305] New: ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class âexpressionâ, have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
- From: "su at cs dot ucdavis.edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 12 Nov 2015 05:22:08 +0000
- Subject: [Bug tree-optimization/68305] New: ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class âexpressionâ, have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68305
Bug ID: 68305
Summary: ICE on valid code at -O3 on x86_64-linux-gnu: tree
check: expected class âexpressionâ, have âexceptionalâ
(ssa_name) in tree_operand_check, at tree.h:3436
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: su at cs dot ucdavis.edu
Target Milestone: ---
The following code causes an ICE when compiled with the current gcc trunk at
-O3 on x86_64-linux-gnu in both 32-bit and 64-bit modes.
It is a regression from 5.2.x.
$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/6.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-trunk/configure --prefix=/usr/local/gcc-trunk
--enable-languages=c,c++ --disable-werror --enable-multilib
Thread model: posix
gcc version 6.0.0 20151110 (experimental) [trunk revision 230107] (GCC)
$
$ gcc-trunk -O2 -c small.c
$ gcc-5.2 -O3 -c small.c
$
$ gcc-trunk -O3 -c small.c
small.c: In function âfn1â:
small.c:4:1: internal compiler error: tree check: expected class âexpressionâ,
have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
fn1 ()
^
0xd66987 tree_class_check_failed(tree_node const*, tree_code_class, char
const*, int, char const*)
../../gcc-trunk/gcc/tree.c:9638
0xd3f9c3 expr_check(tree_node*, char const*, int, char const*)
../../gcc-trunk/gcc/tree.h:3107
0xd3f9c3 tree_operand_check(tree_node*, int, char const*, int, char const*)
../../gcc-trunk/gcc/tree.h:3436
0xd3f9c3 vect_get_constant_vectors
../../gcc-trunk/gcc/tree-vect-slp.c:2744
0xd3fce1 vect_get_slp_defs(vec<tree_node*, va_heap, vl_ptr>, _slp_tree*,
vec<vec<tree_node*, va_heap, vl_ptr>, va_heap, vl_ptr>*, int)
../../gcc-trunk/gcc/tree-vect-slp.c:3025
0xd0e5f9 vectorizable_condition(gimple*, gimple_stmt_iterator*, gimple**,
tree_node*, int, _slp_tree*)
../../gcc-trunk/gcc/tree-vect-stmts.c:7389
0xd2137e vect_transform_stmt(gimple*, gimple_stmt_iterator*, bool*, _slp_tree*,
_slp_instance*)
../../gcc-trunk/gcc/tree-vect-stmts.c:8020
0xd38ce4 vect_schedule_slp_instance
../../gcc-trunk/gcc/tree-vect-slp.c:3482
0xd38b39 vect_schedule_slp_instance
../../gcc-trunk/gcc/tree-vect-slp.c:3363
0xd3a8d6 vect_schedule_slp(vec_info*)
../../gcc-trunk/gcc/tree-vect-slp.c:3547
0xd275c5 vect_transform_loop(_loop_vec_info*)
../../gcc-trunk/gcc/tree-vect-loop.c:6619
0xd4254b vectorize_loops()
../../gcc-trunk/gcc/tree-vectorizer.c:533
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$
------------------------
int a, b;
void
fn1 ()
{
int c, d;
for (; b; b++)
a = a ^ !c ^ !d;
}
- Follow-Ups:
- [Bug tree-optimization/68305] [6 regression] ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class âexpressionâ, have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
- From: trippels at gcc dot gnu.org
- [Bug tree-optimization/68305] [6 regression] ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class âexpressionâ, have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
- From: rguenth at gcc dot gnu.org
- [Bug tree-optimization/68305] [6 regression] ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class âexpressionâ, have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
- From: rguenth at gcc dot gnu.org
- [Bug tree-optimization/68305] [6 regression] ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class âexpressionâ, have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
- From: ienkovich at gcc dot gnu.org
- [Bug tree-optimization/68305] [6 regression] ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class âexpressionâ, have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
- From: ienkovich at gcc dot gnu.org
- [Bug tree-optimization/68305] [6 regression] ICE on valid code at -O3 on x86_64-linux-gnu: tree check: expected class âexpressionâ, have âexceptionalâ (ssa_name) in tree_operand_check, at tree.h:3436
- From: ienkovich at gcc dot gnu.org