From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-253699-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 20887 invoked by alias); 5 Jun 2008 21:41:14 -0000
Received: (qmail 19954 invoked by uid 48); 5 Jun 2008 21:40:26 -0000
Date: Thu, 05 Jun 2008 21:41:00 -0000
Subject: [Bug middle-end/36445]  New: [4.4 Regression] ICE in expand_expr_real_1 with -O1 with vector registers
X-Bugzilla-Reason: CC
Message-ID: <bug-36445-6528@http.gcc.gnu.org/bugzilla/>
Reply-To: gcc-bugzilla@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org
From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Id: <gcc-bugs.gcc.gnu.org>
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2008-06/txt/msg00225.txt.bz2

Another fallout due to the using VCE more patch:
#define vector __attribute__((vector_size(16) ))
struct struct1  {
  union { float a[3]; }    vmx;
  struct struct2   {
    struct2(const struct2& r) {}
  } w;
} __attribute__((aligned(16)));
struct struct3  {
  vector float vmx;
  operator const struct1& () const{
    return *reinterpret_cast<const struct1*>(this);
  }
};
struct3 func3( struct3 V1);
struct3 func2( void );
void func1( )  {
  struct1 vVec = func2() ;
  func3 ( (struct3&)vVec );
}
--- CUT ---
This time you need to compile with -O2 -maltivec and it does not happen under
x86 for some reason.


-- 
           Summary: [4.4 Regression] ICE in expand_expr_real_1 with -O1 with
                    vector registers
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
GCC target triplet: powerpc*-*-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36445