[Bug c++/96225] New: ice in extract_insn, at recog.c:2294

[Bug c++/96225] New: ice in extract_insn, at recog.c:2294

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96225

            Bug ID: 96225
           Summary: ice in extract_insn, at recog.c:2294
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dcb314 at hotmail dot com
  Target Milestone: ---

Created attachment 48884
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48884&action=edit
gzipped C++ source code

The attached gzipped C++ code, with recent gcc trunk and flags
-march=sapphirerapids -O3 -ansi -ffast-math, does this:

usr/include/endian.h: In member function ‘void
DSODatabase::findVisibleDSOs(DSOHandler&, const Point3d&, const Quatf&, float,
float, float) const’:
/usr/include/endian.h:54245:1: error: unrecognizable insn:
(insn 131 130 132 2 (set (reg:V4DF 252)
        (unspec:V4DF [
                (reg:V4DF 153 [ vect__170.1094 ])
            ] UNSPEC_RSQRT)) "/usr/include/endian.h":11544:23 -1
     (nil))
during RTL pass: vregs
/usr/include/endian.h:54245:1: internal compiler error: in extract_insn, at
recog.c:2294

[Bug target/96225] ice in extract_insn, at recog.c:2294

[dcb314 at hotmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96225

--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C++ code is:

extern "C" double sqrt(double);
template <class> class a {
public:
  a();
  void b();
  double c, m;
};
template <class d> void a<d>::b() {
  d e = 1 / sqrt(m);
  c = e;
}
class f {
public:
  void g() const;
};
class h {
  void j() const;
  f k;
};
void h::j() const {
  a<double> l[1];
  for (int i = 0; i < 5; ++i)
    l[i].b();
  k.g();
}

[Bug target/96225] ice in extract_insn, at recog.c:2294

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96225

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|x86_64                      |x86_64-*-*
                 CC|                            |hjl.tools at gmail dot com

--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Sounds awfully close to a similar report involving i386.exp testsuite fails.

[Bug target/96225] ice in extract_insn, at recog.c:2294

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96225

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
Dup.

[Bug target/96225] ice in extract_insn, at recog.c:2294

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96225

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |DUPLICATE

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
Dup.

*** This bug has been marked as a duplicate of bug 96186 ***