https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99600
Bug ID: 99600
Summary: [11 regression] out of memory for simple test case
(x86 -march=atom)
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: arnd at linaro dot org
Target Milestone: ---
Testing random Linux kernel builds with gcc-11 killed my box before I had a
reasonable "ulimit -d" limit set when it filled up 384GB of memory.
I have now set a limit and managed to produce a small test case:
$ ulimit -S -d 1000000 # one gigabyte
$ gcc-11 -O2 -march=atom test.c
virtual memory exhausted: Cannot allocate memory
$ cat test.c
char a;
char b;
long c;
long d() {
if (a )
c = b == 1 ? 1 << 3 : 1 << 2;
else
c = 0;
return 0 ;
}
$ gcc-11 --version
gcc-11 (Ubuntu 11-20210310-1ubuntu1) 11.0.1 20210310 (experimental) [master
revision 8dc225d311e:2453ef06221:5987d8a79cda1069c774e5c302d5597310270026]
