[Bug c/112998] New: s390x: Incorrect code generation

[Bug c/112998] New: s390x: Incorrect code generation

[22s302h0659 at sonline20 dot sen.go.kr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112998

            Bug ID: 112998
           Summary: s390x: Incorrect code generation
           Product: gcc
           Version: 11.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: 22s302h0659 at sonline20 dot sen.go.kr
  Target Milestone: ---

# Environment

- Compiler: s390x-linux-gnu-gcc (64bit)
- Version: gcc version 11.4.0 (Ubuntu 11.4.0-1ubuntu1~22.04)
- Platform: Windows 11_5.15.90.1-microsoft-standard-WSL2
- Build Optimization Options: O0, O1, O2, O3

I installed the s390x-linux-gnu toolchain using the 'apt' package manager in
Ubuntu and utilized s390x-linux-gnu-gcc (version 11.4.0) from it.

# build script & excution script

```c
s390x-linux-gnu-gcc -o bug0 bug.c -O0 -fsanitize=undefined 
s390x-linux-gnu-gcc -o bug1 bug.c -O1 -fsanitize=undefined 
s390x-linux-gnu-gcc -o bug2 bug.c -O2 -fsanitize=undefined 
s390x-linux-gnu-gcc -o bug3 bug.c -O3 -fsanitize=undefined 
```

```c
qemu-s390x-static -L /usr/s390x-linux-gnu/ ./bug0
qemu-s390x-static -L /usr/s390x-linux-gnu/ ./bug1
qemu-s390x-static -L /usr/s390x-linux-gnu/ ./bug2
qemu-s390x-static -L /usr/s390x-linux-gnu/ ./bug3
```

This is the build script and the execution script.

# Source Code

```c
#include <stdio.h>
int g_59 = -1;
short g_64 = -1;
long long g_73 = 0;

int main ()
{   
    (g_59 >= (g_73 = ((g_64 < g_59) | 0)));

    printf("bug = %lld\n", g_73);
    return 0;
}
```

# output

```c
Expected output
O0: 0
O1: 0
O2: 0
O3: 0

Actual output
O0: 0
O1: 0
O2: 1
O3: 1
```

[Bug target/112998] s390x: Incorrect code generation

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112998

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|c                           |target
             Target|                            |s390x
           Keywords|                            |wrong-code

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Can you cross-check GCC 13.2 or a build from gcc master?  GCC 11 is still
maintained and it's useful for reporting bugs, but knowing whether the issue is
fixed in a later release would be nice.

[Bug target/112998] s390x: Incorrect code generation

[xry111 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112998

Xi Ruoyao <xry111 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
                 CC|                            |xry111 at gcc dot gnu.org
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #2 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
Dup of a QEMU bug.

*** This bug has been marked as a duplicate of bug 112986 ***