https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84560
Bug ID: 84560
Summary: Internal error in std::function with std::memset
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: zamazan4ik at tut dot by
Target Milestone: ---
gcc(trunk) with '-O3 -march=native --std=c++11 -Wall' for this code:
#include <functional>
#include <cstring>
using namespace std;
int main() {
int n = 1;
int m = 1;
int d[n][m];
function<void()> rec = [&]() {
memset(d[n - 1], 0, sizeof(int));
};
return 0;
}
generates this:
<source>: In lambda function:
<source>:10:32: error: Local declaration from a different function
function<void()> rec = [&]() {
^
D.34164
<source>:11:16: note: in statement
memset(d[n - 1], 0, sizeof(int));
^
_2 = (sizetype) D.34164;
<source>:10:32: error: Local declaration from a different function
function<void()> rec = [&]() {
^
D.34164
<source>:11:16: note: in statement
memset(d[n - 1], 0, sizeof(int));
^
_9 = (sizetype) D.34164;
<source>:10:32: error: Local declaration from a different function
function<void()> rec = [&]() {
^
D.34167
<source>:11:23: note: in statement
memset(d[n - 1], 0, sizeof(int));
~~~~~~~^
_13 = D.34167 /[ex] 4;
during GIMPLE pass: cfg
<source>:10:32: internal compiler error: verify_gimple failed
function<void()> rec = [&]() {
^
mmap: Cannot allocate memory
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
Compiler returned: 1
I think Internal error isn't good here.
Clang works fine.
