c/4359

[Reichelt]

Hi,

I was able to reproduce the problem on an IRIR 6.5 computer with
gcc 3.0.2 20010903 (prerelease). It might be target-dependant,
since everything works fine with gcc 3.0 on i686-pc-linux-gnu.

Here is a smaller testcase which triggers the bug with -O3 *and* -O2:

void e();

void f()
{
    int i, j;

    switch (j) {
    case 2:
    case 3:
    case 5:
    case 6:
      break;
    case 4:
      i = i && j;
      break;
    default:
      e();
    }
}

(Just compile with "gcc -O2 -c" or "gcc -O3 -c".)

By the way, the bug seems to be a regression from 2.95.3.

Greetings,
Volker Reichelt

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=4359&database=gcc