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From: "seurer at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/107453] New: New stdarg tests in r13-3549-g4fe34cdcc80ac2
 fail
Date: Fri, 28 Oct 2022 21:39:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107453

            Bug ID: 107453
           Summary: New stdarg tests in r13-3549-g4fe34cdcc80ac2 fail
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:4fe34cdcc80ac225b80670eabc38ac5e31ce8a5a, r13-3549-g4fe34cdcc80ac2

FAIL: gcc.dg/c2x-stdarg-4.c execution test
FAIL: gcc.dg/torture/c2x-stdarg-split-1a.c   -O0  execution test
FAIL: gcc.dg/torture/c2x-stdarg-split-1a.c   -O1  execution test
FAIL: gcc.dg/torture/c2x-stdarg-split-1a.c   -O2  execution test
FAIL: gcc.dg/torture/c2x-stdarg-split-1a.c   -O2 -flto -fno-use-linker-plug=
in
-flto-partition=3Dnone  execution test
FAIL: gcc.dg/torture/c2x-stdarg-split-1a.c   -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects  execution test
FAIL: gcc.dg/torture/c2x-stdarg-split-1a.c   -O3 -g  execution test
FAIL: gcc.dg/torture/c2x-stdarg-split-1a.c   -Os  execution test


One traceback

(gdb) run
Starting program: /home/seurer/gcc/git/build/gcc-test/c2x-stdarg-4.exe=20

Program received signal SIGABRT, Aborted.
0x00002000002192a8 in raise () from /lib64/glibc-hwcaps/power9/libc-2.28.so
(gdb) where
#0  0x00002000002192a8 in raise () from /lib64/glibc-hwcaps/power9/libc-2.2=
8.so
#1  0x00002000001f3eb4 in abort () from /lib64/glibc-hwcaps/power9/libc-2.2=
8.so
#2  0x0000000010000fa0 in main () at
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/c2x-stdarg-4.c:153


The abort is from here:

  if (f (1, 2.0, 3, 4.0) !=3D 10.0)
    abort ();



Author: Joseph Myers <joseph@codesourcery.com>
Date:   Fri Oct 28 14:40:25 2022 +0000

    c: tree: target: C2x (...) function prototypes and va_start relaxation=