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From: "roland.illig at gmx dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/105209] New: internal compiler error: in store_data_bypass_p_1
Date: Sun, 10 Apr 2022 19:51:42 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105209

            Bug ID: 105209
           Summary: internal compiler error: in store_data_bypass_p_1
           Product: gcc
           Version: 10.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: roland.illig at gmx dot de
  Target Milestone: ---
            Target: alpha

$ cat <<'EOF' > tree.c
typedef struct tnode_t {
        struct tnode_t *tn_left, *tn_right;
        int v_quad;
} tnode_t;

int constant_addr(const tnode_t *, long *);
int constant_addr(const tnode_t *tn, long *offsp)
{
        long offs1 =3D 0, offs2 =3D 0;

        if (tn->v_quad > 0) {
                offs1 =3D tn->v_quad;
                return 0;
        } else if (tn->v_quad > -1) {
                offs2 =3D tn->tn_right->v_quad;
                if (!constant_addr(tn->tn_left, &offs1))
                        return 0;
        } else {
                return 0;
        }
        *offsp =3D offs1 + offs2;
        return 1;
}
EOF

$ /home/rillig/builds/alpha-tools/bin/alpha--netbsd-gcc -O2 -ftrapv -c tree=
.c
during RTL pass: sched1
/home/rillig/proj/src/usr.bin/xlint/lint1/tree.c: In function 'constant_add=
r':
/home/rillig/proj/src/usr.bin/xlint/lint1/tree.c:23:1: internal compiler er=
ror:
in store_data_bypass_p_1, at recog.c:3714
   23 | }
      | ^

$ gcc --version
alpha--netbsd-gcc (NetBSD nb1 20210411) 10.3.0=