The command 'apt-get upgrade' upgraded gcc-7 from 7.3.0-27ubuntu1~18.04 to
7.4.0-1ubuntu1~18.04.
However, this bug still exists in gcc 7.4.0.
By the way, I found that a slightly simple code give rise to an internal
compiler error as follows.
$ cat << EOF > foo.c
#include <setjmp.h>
#include <stdio.h>
jmp_buf a[10] ;
jmp_buf * volatile sp = a ;
int main()
{
setjmp(*sp++) ;
printf("diff=%td\n", sp-a) ;
}
EOF
$ gcc foo.c
foo.c: In function 'main':
foo.c:9:5: internal compiler error: Segmentation fault
setjmp(*sp++) ;
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-7/README.Bugs> for instructions.
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https://bugs.launchpad.net/bugs/1826820
Title:
calling setjmp destruct a variable
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