https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97741
Bug ID: 97741
Summary: ICE: verify_gimple failed with "-Os
-fno-toplevel-reorder -fno-tree-ccp -fno-tree-fre"
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: suochenyao at 163 dot com
Target Milestone: ---
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OS and Platform:
CentOS Linux release 7.8.2003 (Core), x86_64 GNU/Linux
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Program:
short a = 0;
long b = 0;
char c = 0;
void d() {
int e = 0;
f:
for (a = 6; a;)
c = e;
e = 0;
for (; e == 20; ++e)
for (; b;)
goto f;
}
int main() { return 0; }
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gcc version:
$ gcc -v
Using built-in specs.
COLLECT_GCC=/home/suocy/bin/gcc-dev/bin/gcc
COLLECT_LTO_WRAPPER=/home/suocy/bin/gcc-dev/libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure --prefix=/home/suocy/bin/gcc-dev
--disable-multilib --enable-languages=c,c++
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.0.0 20201106 (experimental) (GCC)
*******************************************************************************
Command Lines:
$ gcc -Wall -Wextra -fno-strict-aliasing -fwrapv -Os -fno-toplevel-reorder
-fno-tree-ccp -fno-tree-fre a.c
a.c: In function ‘d’:
a.c:14:1: error: invalid types in nop conversion
14 | int main() { return 0; }
| ^~~
char
<<< error >>>
_1 = (char) _4;
during GIMPLE pass: evrp
a.c:14:1: internal compiler error: verify_gimple failed
0xe1a2ba verify_gimple_in_cfg(function*, bool)
../../gcc/tree-cfg.c:5461
0xcf7e17 execute_function_todo
../../gcc/passes.c:2039
0xcf887e execute_todo
../../gcc/passes.c:2093
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
